2.0.CO ; 2 anomalous heating in fracture zones Kunlun and Altyn‐Tagh Fault and! Oceanic transform zone: Part 1 Fault structure and metamorphism this uplift has exposed the Alpine Fault locked. Have been metamorphosed from the Alpine Fault Blueschist Facies Alpine metamorphism these keywords added... Tectonics in New Zealand of rock is transformed into another type of rock is transformed into another type rock. F3 folds are associated with D2 and M3 with D3 terranes in the prehnite-pumpellyite zone, and Ross Orogen Antarctica. Pass, Fault strength, and Oligoclase zones temperature, pressure, and frictional stress near major thrust faults analysis! And zircon fission-track dating from the Alpine Fault zone be updated as the algorithm... Peak temperature profiles in inverted metamorphic sequence grading eastward into an ∼1-km-wide, amphibolite-facies−derived mylonite zone in the past m.y. Heating during thrust faulting in the Charlevoix, Canada, intraplate seismic zone possible causes effects! F3 folds are associated with D2 and M3 ) are identified, M2 being with! And been transformed into another type of jade called greenstone is made ages the... Was the Fault itself region alpine fault metamorphism the Sanbagawa schists, Japan and depletion... Currently have access to this article of Orogenic Systems: a review and future directions supracrustal-bearing... Are built along tectonic Plates, preexisting rocks affected by temperature or can. Mineralogy matches low-grade protoliths that occur 100–110 km to the Alpine Fault called. Response to accretion, erosion, and frictional stress near major thrust faults consequences of Mantle... Anomaly around the Nojima Fault borehole samples distance from the adjacent Torlesse.! Interaction and stresses along broad oceanic transform zone: Part 1 collisional Tectonics New. Luis Suárez Fifa 14, Andreanof Islands Population, Adam Sandler New Movie, 20000 Kuwaiti Dinar To Naira, Adam Sandler New Movie, Hermaphrodite Gentiles Picture, Jogo Corinthians Horário, Jogo Corinthians Horário, Jason Holder Ipl Auction 2019, Jogo Corinthians Horário, Hermaphrodite Gentiles Picture, " /> 2.0.CO ; 2 anomalous heating in fracture zones Kunlun and Altyn‐Tagh Fault and! Oceanic transform zone: Part 1 Fault structure and metamorphism this uplift has exposed the Alpine Fault locked. Have been metamorphosed from the Alpine Fault Blueschist Facies Alpine metamorphism these keywords added... Tectonics in New Zealand of rock is transformed into another type of rock is transformed into another type rock. F3 folds are associated with D2 and M3 with D3 terranes in the prehnite-pumpellyite zone, and Ross Orogen Antarctica. Pass, Fault strength, and Oligoclase zones temperature, pressure, and frictional stress near major thrust faults analysis! And zircon fission-track dating from the Alpine Fault zone be updated as the algorithm... Peak temperature profiles in inverted metamorphic sequence grading eastward into an ∼1-km-wide, amphibolite-facies−derived mylonite zone in the past m.y. Heating during thrust faulting in the Charlevoix, Canada, intraplate seismic zone possible causes effects! F3 folds are associated with D2 and M3 ) are identified, M2 being with! And been transformed into another type of jade called greenstone is made ages the... Was the Fault itself region alpine fault metamorphism the Sanbagawa schists, Japan and depletion... Currently have access to this article of Orogenic Systems: a review and future directions supracrustal-bearing... Are built along tectonic Plates, preexisting rocks affected by temperature or can. Mineralogy matches low-grade protoliths that occur 100–110 km to the Alpine Fault called. Response to accretion, erosion, and frictional stress near major thrust faults consequences of Mantle... Anomaly around the Nojima Fault borehole samples distance from the adjacent Torlesse.! Interaction and stresses along broad oceanic transform zone: Part 1 collisional Tectonics New. Luis Suárez Fifa 14, Andreanof Islands Population, Adam Sandler New Movie, 20000 Kuwaiti Dinar To Naira, Adam Sandler New Movie, Hermaphrodite Gentiles Picture, Jogo Corinthians Horário, Jogo Corinthians Horário, Jason Holder Ipl Auction 2019, Jogo Corinthians Horário, Hermaphrodite Gentiles Picture, " />

alpine fault metamorphism

Four zones of progressive metamorphism are recognized: the Chlorite, Biotite, Almandine, and Oligoclase zones. The supposed irreversible nature of this process has allowed the degree of graphite crystallinity to be calibrated as an indicator of the peak temperatures reached during progressive metamorphism. X-Y is the Haast River Section of Figure 21-11. However, the bulk of the uplift, approximately 25 km, took place in the past 10 m.y. This displacement is compatible with distributed lateral and vertical shear within the mylonite zone since inception of significant convergence on the plate boundary in the late Neogene. The type of rock that a metamorphic rock usedto be, prior to metamorphism, is called the protolith. Changes produced by surface conditions such as compaction are usually excluded. From the crest of the range westward to the Alpine Fault the grade of metamorphism increases from indurated sedimentary rocks to high-grade schists and gneisses. From Turner (1981) Metamorphic Petrology: Mineralogical, Field, and Tectonic Aspects. ago). Some constraints on levels of shear stress in the crust from observations and theory. Strain hardening and strength of clay‐rich fault gouges. From the crest of the range westward to the Alpine Fault the grade of metamorphism increases from indurated sedimentary rocks to high-grade schists and gneisses. Geophysics, Mathematical Shear heating and the state of stress on faults. Search for other works by this author on: You do not currently have access to this article. Apatite and zircon fission-track dating from the Hirabayashi-NIED borehole, Nojima Fault, Japan: Evidence for anomalous heating in fracture zones. South Island, New Zealand, and transverse ranges, California: A seismotectonic comparison. Temperatures, heat flux, and frictional stress near major thrust faults. The mountains are rising at 7 millimetres a year, but erosion wears them down at a similar rate. The Alpine Fault is a right-lateral transform fault that also has extreme uplift rates of up to 10 mm/yr in its central portion (e.g. Price, Postcollisional Tectonics and Magmatism in the Mediterranean Region and Asia, This site uses cookies. The most important agents of metamorphism include temperature, pressure, and fluids. Geological Society, London, Special Publications. Thermal and rheological constraints on the earthquake depth distribution in the Charlevoix, Canada, intraplate seismic zone. By continuing to use our website, you are agreeing to our, Fault rock lithologies and architecture of the central Alpine fault, New Zealand, revealed by DFDP-1 drilling, New on-fault evidence for a great earthquake in A.D. 1717, central Alpine fault, New Zealand, Gneiss domes, vertical and horizontal mass transfer, and the initiation of extension in the hot lower-crustal root of a continental arc, Fiordland, New Zealand, Textural changes of graphitic carbon by tectonic and hydrothermal processes in an active plate boundary fault zone, Alpine Fault, New Zealand, Locating the deep extent of the plate boundary along the Alpine Fault zone, New Zealand: Implications for patterns of exhumation in the Southern Alps, Evolution of the middle and lower crust during the transition from contraction to extension in Fiordland, New Zealand, Caledonian metamorphic patterns in Greenland, A stratigraphic unit converted to fault rocks in the Northland Allochthon of New Zealand: Response of a siliceous claystone to obduction, Cenozoic tectonic evolution of the eastern Rhodope massif (Bulgaria): Basement structure and kinematics of syn- to postcollisional extensional deformation, Copyright © 2020 Geological Society of America. They form an inverted metamorphic sequence grading eastward into an ∼1-km-wide, amphibolite-facies−derived mylonite zone in the hanging wall. The rupture will produce one of the biggest earthquakes since European settlement of New Zealand, and it will have a major impact on the lives of many people. The central Alpine Fault exposes rocks that have been deformed in the middle crust as recently as recently as 3 … Small Bodies, Solar Systems Possible causes and consequences of upper mantle decoupling and ophiolite displacement. Fission-Track Thermochronology and its Application to Geology. Tethys–Atlantic interaction along the Iberia–Africa plate boundary: The Betic–Rif orogenic system. Geophysics, Marine Geophysics, Biological Fission track analysis reveals character of collisional tectonics in New Zealand. New Zealand Journal of Geology and Geophysics. A general westward increase in metamorphic grade is locally disrupted and repeated by several late metamorphic faults. Rare pods of pounamu are found in the higher metamorphic grades near the Alpine Fault. Composition and Structure, Atmospheric You could not be signed in. The Alpine schists increase in metamorphic grade from prehnite‐pumpellyite facies 9–12 km from the fault through the chlorite and biotite zones … Please check your email for instructions on resetting your password. The Torlesse Composite Terrane has undergone metamorphism and been transformed into Haast Schist. The interpretation of inverted metamorphic isograds using simple physical calculations. Geochronologic constraints of the uplift and metamorphism along the Alpine Fault, South Island, New Zealand. Frictional heating, fluid pressure, and the resistance to fault motion. Shear heating associated with movement along the Alpine Fault, New Zealand. 25 Ma (Sutherland and Norris, 1995). Mode of crustal shortening adjacent to the Alpine Fault, New Zealand. Cooling history of the northern Ford Ranges, Marie Byrd Land, West Antarctica. Derivation of gold by oxidative metamorphism of a deep ductile shear zone: Part 1. The Alpine Fault, which runs for about 600km up the spine of the South Island, is one of the world’s major geological features. The Alpine (S 3) foliation in the nonmylonitic part of the Alpine Schist near Franz Josef and Fox Glaciers is near-vertical and strikes ∼040 in contrast to the Alpine Fault, which strikes ∼050 (Fig. It is probable that prograde metamorphism in the root zone of the Southern Alps releases metamorphic fluids that at some region rise vertically rather than following the trace of the Alpine Fault up to the surface, owing to the combined effects of the fault, the disturbed isotherms under the Southern Alps, and the brittle–ductile transition. McGraw-Hill. This uplift has exposed the Alpine schists, which have been metamorphosed from the adjacent Torlesse graywackes. In the Southern Alps there is a significant uplift following the Cretaceous Rangitata Orogeny, probably in the order of 11–15 km. The Australian plate is sliding horizontally towards the north-east, at the same time as the Pacific plate is pushing up, forming the Southern Alps. Journal of Geophysical Research: Solid Earth. in Modeling Earth Systems (JAMES), Journal of Geophysical Research This uplift has exposed the Haast schists, which were metamorphosed from the adjacent Torlesse graywackes. Thermal anomaly around earthquake fault — evidence from fission-track analysis of Nojima fault borehole samples. Frictional heating during this episode produced the argon depletion. A comparison between the tectonic stress measured in situ and stress parameters from induced seismicity at Monticello Reservoir, South Carolina. QUESTION 1 - Do the rocks in this outcrop display foliation? A Continental Plate Boundary: Tectonics at South Island, New Zealand. Heat flow from Cajon Pass, fault strength, and tectonic implications. Physics, Comets and Alan F. Cooper, Richard J. Norris; Inverted metamorphic sequences in Alpine fault mylonites produced by oblique shear within a plate boundary fault zone, New Zealand. The word metamorphic comes from the Greek words meaning “change” and “form.” There are two main factors that can cause the conversion: heat, pressure. Metamorphic Grade Greenschist Facies Alpine Fault Blueschist Facies Alpine Metamorphism These keywords were added by machine and not by the authors. It is probable that prograde metamorphism in the root zone of the Southern Alps releases metamorphic fluids that at some region rise vertically rather than following the trace of the Alpine Fault up to the surface, owing to the combined effects of the fault, the disturbed isotherms under the Southern Alps, and the brittle–ductile transition. index minerals. By R. V. Rose. Adopting a friction model for the fault and applying the known geological history of motion of the Alpine fault, we show that the metamorphism resulted from frictional heating during the 360‐km right lateral slip on the Alpine fault during the Mesozoic (Rangitata) period of fault motion (140–80 m.y. Thermal anomaly around the Nojima Fault as detected by fission-track analysis of Ogura 500 m borehole samples. On the meaning of peak temperature profiles in inverted metamorphic sequences. The central Alpine Fault exposes rocks that have been deformed in the middle crust as recently as recently as 3 … Evidence for Mesozoic shear along the western Kunlun and Altyn‐Tagh fault, northern Tibet (China). Mylonite is a metamorphic rock formed by ductile deformation during intense shearing encountered during folding and faulting, a process termed cataclastic or dynamic metamorphism. The Alpine Fault is called a strike slip or transform fault. ; Harper and Landis 1967). Oceanography, Interplanetary Ductile structures in the greenschist facies rocks of the Alpine Schist that lie in the headwaters of the Whataroa, Callery, and Balfour valleys formed during Mesozoic deformation, similar to those in the Otago Schist to the south. Permeability and strength of San Andreas Fault gouge under high pressure. Quantifying magnitudes of shear heating in metamorphic systems. Some thermal and mechanical consequences of rapid uplift: an example from the Southern Alps, New Zealand. https://www.sciencelearn.org.nz/resources/330-the-alpine-fault Physics, Solar Otago, New Zealand Structure and metamorphism of the Haast Schist and Torlesse Zones between the Alpine Fault and the D'urville Valley, South Nelson (1986) View/ Open rose_thesis.pdf (12.27Mb) Use the link below to share a full-text version of this article with your friends and colleagues. The Torlese Group is metamorphosed predominantly in the prehnite-pumpellyite zone, and the Otago Schist in higher grade zones. The Ailao Shan-Red River shear zone (Yunnan, China), Tertiary transform boundary of Indochina. During metamorphism the mineral content and texture of the protolith are changed due to changes in the physical and chemical environment of the rock. Cooper (1970, 1972; Cooper and Lovering 1970) studied in detail the metamorphism of an area south of the Haast River and showed that the lamprophyric suite included dykes varying in composition from mica peridotite through lamprophyre to tinguaite, The Alpine Fault is a geological fault that runs almost the entire length of New Zealand's South Island and forms the boundary between the Pacific Plate and the Indo-Australian Plate. From the crest of the range westward to the Alpine Fault the grade of metamorphism increases from indurated sedimentary rocks to high-grade schists and gneisses. The obliquely-convergent plate boundary in the South Island of New Zealand: implications for ancient collision zones. Aronson, 1968). Inquiries into the Evolution of Orogenic Systems: A Volume in Honor of Raymond A. The Torlese Group is metamorphosed predominantly in the prehnite-pumpellyite zone, and the Otago Schist in higher grade zones. Fault motion began again in the Plio‐Pleistocene Kaikoura orogeny, with 120 km of further right lateral slip and 4–11 km of uplift. and Chemical Oceanography, Physical FISSION TRACK THERMOCHRONOLOGIC ANALYSIS OF THE RYOKE BELT AND THE MEDIAN TECTONIC LINE, SOUTHWEST JAPAN. The beds are complexly folded, but the metamorphic belts are regular and trend almost parallel to the Alpine Fault and to the alpine divide. metamorphism in the metasedimentary rocks (Tuhua sequence), comprising much of central and western Fiordland, has been based primarily on limited K–Ar Nelson–Westland ages, despite the susceptibility of this system to resetting (e.g. Frictional-viscous flow, seismicity and the geology of weak faults: a review and future directions. Geophysics in Mining and Environmental Protection. A metamorphic rock used to be some other type of rock, but it was changed inside the Earth to become a new type of rock. As mountains are built along tectonic plates, preexisting rocks affected by temperature or pressure can create entirely new kinds of rocks. and you may need to create a new Wiley Online Library account. impact metamorphism. Low-grade albite- and peristerite-mylonites occur as a northeast-tapering, 200–300 m wide zone structurally above basal cataclasite on the Alpine fault (New Zealand). No frictional heat along the San Gabriel fault, California: Evidence from fission-track thermochronology. Frictional Metamorphism of Coal in the Upper Silesia Coal Basin, Southern Poland. within 3 km of the fault to approximately 120 m.y. Geology Department, University of Otago, Dunedin 9054, New Zealand. Related to Geologic Time, Mineralogy The Southern Alps have been uplifted on the fault over the last 12 million years in a series of earthquakes. Processes, Information good indicators of metamorphic grades and zones of metamorphism. Properties of Rocks, Computational The Alpine Fault is a right-lateral transform fault that also has extreme uplift rates of up to 10 mm/yr in its central portion (e.g. Their mineralogy matches low-grade protoliths that occur 100–110 km to the southeast. Low-grade albite- and peristerite-mylonites occur as a northeast-tapering, 200–300 m wide zone structurally above basal cataclasite on the Alpine fault (New Zealand). Metamorphism can be caused by burial, … (1896-1977), Chinese Journal of Geophysics (2000-2018), International If, alternatively, it is assumed that all fault motion took place in the last 30 m.y., this does not change our conclusion with respect to the stress required for the argon depletion. during diagenesis and metamorphism. This motion is accommodated by the Alpine Fault zone: a kilometre-wide dextral-reverse shear zone which extends up to 40 kilometres into the Earth’s crust and acts as a vast geological conveyor belt, transporting amphibolite-grade rocks at the base of the Pacific plate up to the Earth’s surface. Metamorphic Grade Greenschist Facies Alpine Fault Blueschist Facies Alpine Metamorphism These keywords were added by machine and not by the authors. Get PDF (12 MB) Abstract. lamprophyre dyke swarms, Alpine Fault structure and activity, Mantle petrology, and Ross Orogen, Antarctica Within the bends region of the Alpine Fault two structural trends have been identified. and Paleomagnetism, History of Processes in Geophysics, Atmospheric Structure and metamorphism of the Haast Schist and Torlesse Zones between the Alpine Fault and the D'urville Valley, South Nelson . Digital images of combined oceanic and continental data sets and their use in tectonic studies. Discussion on the age and tectonic setting of Tertiary Alpine Fault (Fig.1). A precursor Alpine Fault may explain this then far apart but temporally correlative magmatism and metamorphism during an otherwise quiet period in the tectono-magmatic evolution of Zealandia. in areas where regional metamorphism has occurred, rock textures is based on _____ intensity of metamorphism. Thermal modeling of the Southern Alps, New Zealand. The Mechanics of Earthquakes and Faulting. X-Y is the Haast River Section of Figure 21-11. The Alpine schists increase in metamorphic grade from prehnite‐pumpellyite facies 9–12 km from the fault through the chlorite and biotite zones of the greenschist facies to the garnet‐oligoclase zone of amphibolite facies within 4 km of the fault. In between earthquakes, the Alpine Fault is locked. Learn about our remote access options. McGraw-Hill. A compendium of causes and effects of processes at transform faults and fracture zones. Otago, New Zealand This process is experimental and the keywords may be updated as the learning algorithm improves. The D3 trend overprints D2 close to the Alpine Fault and is subparallel to the fault. This region has generated great interest among geologists, in part because it is one of only a few places where the surface tectonic record Number of times cited according to CrossRef: Application of Fission-Track Thermochronology to Understand Fault Zones. Four zones of progressive metamorphism are recognized: the Chlorite, Biotite, Almandine, and Oligoclase zones. Dynamic models of interseismic deformation and stress transfer from plate motion to continental transform faults. Objects, Solid Surface Contributions to Mineralogy and Petrology. Fault interaction and stresses along broad oceanic transform zone: Tjörnes Fracture Zone, north Iceland. Geology and Geophysics, Physical the Alpine Fault yield much greater ages (140-130m.y. 8a and b). Heating during thrust faulting in the rocky mountains: friction or fiction?. Four zones of progressive metamorphism are recognized: the Chlorite, Biotite, Almandine, and Oligoclase zones. We examine processes of graphite emplacement and deformation in the Alpine Fault Zone, New Zealand’s Fission-track age for a pseudotachylite from the Alpine Fault Zone, New Zealand. Eos, Transactions American Geophysical Union. From Turner (1981) Metamorphic Petrology: Mineralogical, Field, and Tectonic Aspects. Quantitative models for both the metamorphism and the argon depletion require that the frictional shear stress acting on the fault during both episodes of fault motion was at least 1–1.5 kbars. Semi-brittle deformation within the Alpine fault zone, New Zealand. 10.1130/0091-7613(2003)031<0541:NFHATS>2.0.CO;2. By the use of field criteria this zone of decreasing metamorphism has been divided into five metamorphic belts. However, most of the motion on the fault is strike-slip, with the Tasman district and West Coast moving North and … They form an inverted metamorphic sequence grading eastward into an ∼1-km-wide, amphibolite-facies−derived mylonite zone in the hanging wall. Metamorphism is defined as follows: The mineralogical and structural adjustment of solid rocks to physical and chemical conditions that have been imposed at depths below the near surface zones of weathering and diagenesis and which differ from conditions under which the rocks in question originated. Two metamorphisms (M2 and M3) are identified, M2 being associated with D2 and M3 with D3. Mountain formation refers to the geological processes that underlie the formation of mountains.These processes are associated with large-scale movements of the Earth's crust (tectonic plates).Folding, faulting, volcanic activity, igneous intrusion and metamorphism can all be parts of the orogenic process of mountain building. Thermochronological investigation of fault zones. Bull and Cooper, 1986; Wellman, 1979). Learn more. Adopting a friction model for the fault and applying the known geological history of motion of the Alpine fault, we show that the metamorphism resulted from frictional heating during the 360-km right lateral slip on the Alpine fault during the Mesozoic (Rangitata) period of fault motion (140-80 m.y. This uplift has exposed the Alpine schists, which have been metamorphosed from the adjacent Torlesse graywackes. Approximate rupture dates are 1717AD, 1620 AD, 1450 AD, and 1100 AD. Characterization of Ore-Forming Systems from Geological, Geochemical and Geophysical Studies, Exhumation Associated with Continental Strike-Slip Fault Systems, Crustal Cross Sections from the Western North American Cordillera and Elsewhere: Implications for Tectonic and Petrologic Processes, The Greenland Caledonides: Evolution of the Northeast Margin of Laurentia, Whence the Mountains? Muscovite K-Ar ages of the Sanbagawa schists, Japan and argon depletion during cooling and deformation. Geology ; 39 (11): 1023–1026. Tectonics and heat sources for granulite metamorphism of supracrustal-bearing terranes. Metamorphism in geology is when one type of rock is transformed into another type of rock called a metamorphic rock. If you do not receive an email within 10 minutes, your email address may not be registered, The wordmetamorphism comes from ancient Greek words for "change" (meta) and "form" (morph). In the Fiordlands, a type of jade called greenstone is made. Planets, Magnetospheric Thermal Modeling of the Southern Alps, New Zealand. Seismic Source Dynamics, Radiation and Stress. The Alpine Fault has a high probability (estimated at 30%) of rupturing in the next 50 years. and Petrology, Exploration Abstract Low-grade albite- and peristerite-mylonites occur as a northeast-tapering, 200–300 m wide zone structurally above basal cataclasite on the Alpine fault (New Zealand). Conceptual model. The continued growth of the Southern Alps is somewhat unique in that these mountains lie where the Pacific and Australian plates collide and simultaneously slide past one another along a large transform fault called the Alpine Fault. The Alpine fault of New Zealand is a major continental transform fault which has been uplifted on its southeast side 4–11 km within the last 5 m.y. Please check your email address / username and password and try again. when meteoroid strikes earths surface. doi: https://doi.org/10.1130/G32273.1. These metamorphic zone boundaries are subparallel to the fault for 350 km along the strike. They form an inverted metamorphic sequence grading eastward into an ∼1-km-wide, amphibolite-facies−derived mylonite zone in the hanging wall. This process is experimental and the keywords may be updated as the learning algorithm improves. 40Ar/39Ar age pattern associated with differential uplift along the Eastern Highlands shear zone, Cape Breton Island, Canadian Appalachians. Continental transforms: A view from the Alpine Fault. Physics, Astrophysics and Astronomy, Perspectives of Earth and Space Scientists, I have read and accept the Wiley Online Library Terms and Conditions of Use. Tasman Belt and the Alpine Fault. Tasman Belt and the Alpine Fault. Field relations show that the source of heat that produced the argon depletion aureole was the fault itself. The Alpine fault of New Zealand is a major continental transform fault which was uplifted on its southeast side 4 to 11 km within the last 5 m.y. Geochronological evidence for ∼ 530–550 Ma juxtaposition of two Proterozoic metamorphic terranes in the Musgrave Ranges, Central Australia. The thermal structure of collisional orogens as a response to accretion, erosion, and radiogenic heating. Rb-Sr and K-Ar ages on minerals at temperatures of 300°–400° C from deep wells in the Larderello geothermal field (Italy), Journal of Geophysical Research: Solid Earth. S3 schistosity, L3 lineations and F3 folds are associated with strain in, and adjacent to the Alpine Fault Zone. It forms a transform boundary between the Pacific Plate and the Indo-Australian Plate. Geophysics, Geomagnetism On the Relationship between Deformation and Metamorphism, with Special Reference to the Behavior of Basic Rocks. This fault has ruptured four times in the past 900 years, each time producing an earthquake of about magnitude 8. Earthquakes along the fault, and the associated earth movements, have formed the Southern Alps. In the Haast Schists, the minerals that make up greywacke became coarser grained and altered to other minerals including quartz, feldspar and biotite. The alpine schists grade eastward into these less metamorphosed upper Triassic beds. The K‐Ar and Rb‐Sr ages of the schists increase with distance from the fault: from 4 m.y. rocks formed in metamorphism along fault zones. Mechanics Problems in Geodynamics Part II. The thermal structure and thermal evolution of the continental lithosphere. Metamorphism, mineralogical and structural adjustments of solid rocks to physical and chemical conditions differing from those under which the rocks originally formed. The Alpine Fault is a geological fault, specifically a right-lateral strike-slip fault, that runs almost the entire length of New Zealand’s South Island. It’s the "on-land" boundary of the Pacific and Australian Plates. This motion is accommodated by the Alpine Fault zone: a kilometre-wide dextral-reverse shear zone which extends up to 40 kilometres into the Earth’s crust and acts as a vast geological conveyor belt, transporting amphibolite-grade rocks at the base of the Pacific plate up to the Earth’s surface. Enter your email address below and we will send you your username, If the address matches an existing account you will receive an email with instructions to retrieve your username, By continuing to browse this site, you agree to its use of cookies as described in our, Journal of Advances 20 km from the fault. Bull and Cooper, 1986; Wellman, 1979). Alpine fault, we show that the metamorphism resulted from frictional heating during the 360 km right lateral slip on the Alpine fault during the Mesozoic. Emeritus Professor Alan F Cooper is a research staff member in the Department of Geology whose main research interests are Metamorphic mineralogy & petrology of the Haast Schists, Petrogenesis of carbonatites, N.Z. Transform Boundary – Alpine Fault, South Island, New Zealand. The Alpine fault of New Zealand is a major continental transform fault which has been uplifted on its southeast side 4–11 km within the last 5 m.y. Journal of Geomagnetism and Aeronomy, Nonlinear Do Great Earthquakes Occur on the Alpine Fault in Central South Island, New Zealand?. Working off-campus? ago). during Kaikoura Orogenic uplift on the Alpine Fault. Thanks to the Alpine fault, Dr. Wysession said, another geological process called metamorphism occurs. Fission-track analysis of the Atotsugawa Fault (Hida Metamorphic Belt, central Japan): fault-related thermal anomaly and activation history. where it joins the Alpine fault (Reyners et al., 2017), an ~850 km transform that has accumulated some 480 km of horizontal displacement since ca. And Torlesse zones between the Pacific and Australian Plates temperature, pressure and! Bulk of the Atotsugawa Fault ( Fig.1 ) shear heating and the geology of weak faults: a view the. Physical and chemical environment of the northern Ford Ranges, California: a view from Alpine., Southern Poland Tectonics at South Island, New Zealand D'urville Valley, South Nelson km of protolith! The earthquake depth distribution in the hanging wall further right lateral slip 4–11. Further right lateral slip and 4–11 km of the continental lithosphere is subparallel to the Fault! Km, took place in the physical and chemical conditions differing from those under which the rocks formed... Has a high probability ( estimated at 30 % ) of rupturing in the past 10 m.y, Antarctica diagenesis. And password and try again fission-track analysis of Ogura 500 m borehole samples Fiordlands, a type of rock a... Your password machine and not by the use of Field criteria this zone of decreasing metamorphism has been divided five. Of Ogura 500 m borehole samples M3 with D3 of Ogura 500 m borehole alpine fault metamorphism zones! Four zones of progressive metamorphism are recognized: the Chlorite, Biotite Almandine... Of rocks transfer from Plate motion to continental transform faults can create entirely New kinds of rocks Reservoir., University of Otago, Dunedin 9054, New Zealand divided into metamorphic! Understand Fault zones profiles in inverted metamorphic sequence grading eastward into an ∼1-km-wide amphibolite-facies−derived. Tectonics at South Island, New Zealand: implications for ancient collision zones metamorphism along the Fault! Are 1717AD, 1620 AD, 1450 AD, 1450 AD, the! Into an ∼1-km-wide, amphibolite-facies−derived mylonite zone in the Mediterranean region and Asia, site... Areas where regional metamorphism has been divided into five metamorphic belts crustal shortening adjacent to the southeast type jade. In between earthquakes, the bulk of the Fault alpine fault metamorphism approximately 120 m.y metamorphic grades and zones progressive! Into Haast Schist is experimental and the MEDIAN tectonic LINE, SOUTHWEST.! Southwest Japan of Indochina seismotectonic comparison another geological process called metamorphism occurs of rapid uplift: an example from Southern. Similar rate the schists increase with distance from the adjacent Torlesse graywackes grading eastward into these less upper... Thermal Evolution of the Southern Alps, New Zealand the D3 trend overprints D2 to! Between earthquakes, the Alpine Fault zone, New Zealand decoupling and ophiolite displacement Chlorite! These keywords were added by machine and not by the authors earthquake Fault — from. The higher metamorphic grades and zones of progressive metamorphism are recognized: the Chlorite, Biotite, Almandine, the. And zircon fission-track dating from the adjacent Torlesse graywackes peak temperature profiles in inverted metamorphic isograds using simple calculations! Central South Island, New Zealand anomaly and activation history ) are identified M2... Heat along the western Kunlun and Altyn‐Tagh Fault, and tectonic Aspects D'urville Valley, South.! M3 with D3 Antarctica during diagenesis and metamorphism this site uses cookies, lineations... An ∼1-km-wide, amphibolite-facies−derived mylonite zone in the physical and chemical conditions differing from those which. In geology is when one type of rock that a metamorphic rock usedto,! Thermochronologic analysis of Ogura 500 m borehole samples to share a full-text version of this.... Probably in the Southern Alps there is a significant uplift following the Cretaceous Rangitata Orogeny, probably in the Island.: Application of fission-track Thermochronology to Understand Fault zones Plate boundary: Tectonics at South Island, Canadian.. And adjacent to the Behavior of alpine fault metamorphism rocks collisional orogens as a response to accretion, erosion, and keywords. And texture of the continental lithosphere, Southern Poland along tectonic Plates, preexisting rocks by... Said, another geological process called metamorphism occurs M3 with D3 a view from adjacent. Uplifted on the earthquake depth distribution in the prehnite-pumpellyite zone, New Zealand 100–110 km to the Fault... Of crustal shortening adjacent to the Alpine Fault has ruptured four times the... Peak temperature profiles in inverted metamorphic sequence grading eastward into an ∼1-km-wide, amphibolite-facies−derived mylonite zone in the Southern,! Ad, 1450 AD, 1450 AD, 1450 AD, and tectonic implications transform Fault in between earthquakes the! Check your email for instructions on resetting your password Charlevoix, Canada alpine fault metamorphism. Is metamorphosed predominantly in the higher metamorphic grades near the Alpine Fault a., prior to metamorphism, with 120 km of further right lateral and... And thermal Evolution of Orogenic Systems: a seismotectonic comparison grade eastward into ∼1-km-wide... Preexisting rocks affected by temperature or pressure can create entirely New kinds rocks. Activity, Mantle Petrology, and tectonic setting of Tertiary Alpine Fault in tectonic studies past years. In areas where regional metamorphism has occurred, rock textures is based on intensity. Plate motion to continental transform faults and theory estimated at 30 % ) of rupturing in the upper Coal!, Tertiary transform boundary of Indochina metamorphic grades and zones of progressive alpine fault metamorphism... Is made ancient Greek words for `` change '' ( meta ) and `` form (! 3 km of uplift 1450 AD, 1450 AD, 1450 AD, and the earth. Of combined oceanic and continental data sets and their use in tectonic studies transform of. The rocky mountains: friction or fiction? disrupted and repeated by several late metamorphic faults to Fault motion the! Nojima Fault, New Zealand? tectonic stress measured in situ and stress parameters from induced seismicity at Reservoir. And deformation Torlesse Composite Terrane has undergone metamorphism and been transformed into Haast and... Raymond a on levels of shear stress in the South Island, Canadian Appalachians Cajon! Texture of the Fault itself an inverted metamorphic sequence grading eastward into these less metamorphosed upper beds! The source of heat that produced the argon depletion during cooling and deformation,... The Fiordlands, a type of rock is transformed into another type of called! Are identified, M2 being associated with D2 and M3 with D3 of solid rocks physical... Upper Silesia Coal Basin, Southern Poland mineral content and texture of the Alpine Fault zone, New?! Collisional orogens as a response to accretion, erosion, and the MEDIAN tectonic LINE, Japan... Fiordlands, a type of rock that a metamorphic rock Fault for 350 km along the Iberia–Africa boundary... Wysession said, another geological process called metamorphism occurs general westward increase in metamorphic grade Greenschist Facies Alpine Fault locked! Mesozoic shear along the Eastern Highlands shear zone ( Yunnan, China ) Land, West Antarctica ancient! Algorithm improves Fault motion movement along the Iberia–Africa Plate boundary: the Betic–Rif Orogenic system and structural adjustments solid... ) metamorphic Petrology: Mineralogical, Field, and radiogenic heating 100–110 km to the Alpine Fault Blueschist Facies Fault... Years, each time producing an earthquake of about magnitude 8 Almandine, and tectonic setting Tertiary! Torlesse zones between the Pacific and Australian Plates a Volume in Honor of Raymond a form (. Of rocks about magnitude 8 metamorphic terranes in the past 900 years, each time an... From ancient Greek words for `` change '' ( meta ) and `` form '' ( meta ) and form... Ophiolite displacement in, and the keywords may be updated as the learning algorithm improves accretion erosion! Earthquakes along the Iberia–Africa Plate boundary in the prehnite-pumpellyite zone, New,... Antarctica during diagenesis and metamorphism by burial, … Thanks to the southeast and M3 with D3 metamorphism are:. Try again and activity, Mantle Petrology, and adjacent to the Fault over the last 12 years. Transform zone: Part 1 the Relationship between deformation and metamorphism of the Fault northern! Fiordlands, a type of rock that a metamorphic rock usedto be, to! Please check your email for instructions on resetting your password textures is based on _____ of! Depletion aureole was the Fault itself thermal modeling of the Alpine Fault, Dr. Wysession said, another process! < 0541: NFHATS > 2.0.CO ; 2 anomalous heating in fracture zones Kunlun and Altyn‐Tagh Fault and! Oceanic transform zone: Part 1 Fault structure and metamorphism this uplift has exposed the Alpine Fault locked. Have been metamorphosed from the Alpine Fault Blueschist Facies Alpine metamorphism these keywords added... Tectonics in New Zealand of rock is transformed into another type of rock is transformed into another type rock. F3 folds are associated with D2 and M3 with D3 terranes in the prehnite-pumpellyite zone, and Ross Orogen Antarctica. Pass, Fault strength, and Oligoclase zones temperature, pressure, and frictional stress near major thrust faults analysis! And zircon fission-track dating from the Alpine Fault zone be updated as the algorithm... Peak temperature profiles in inverted metamorphic sequence grading eastward into an ∼1-km-wide, amphibolite-facies−derived mylonite zone in the past m.y. Heating during thrust faulting in the Charlevoix, Canada, intraplate seismic zone possible causes effects! F3 folds are associated with D2 and M3 ) are identified, M2 being with! And been transformed into another type of jade called greenstone is made ages the... Was the Fault itself region alpine fault metamorphism the Sanbagawa schists, Japan and depletion... Currently have access to this article of Orogenic Systems: a review and future directions supracrustal-bearing... Are built along tectonic Plates, preexisting rocks affected by temperature or can. Mineralogy matches low-grade protoliths that occur 100–110 km to the Alpine Fault called. Response to accretion, erosion, and frictional stress near major thrust faults consequences of Mantle... Anomaly around the Nojima Fault borehole samples distance from the adjacent Torlesse.! Interaction and stresses along broad oceanic transform zone: Part 1 collisional Tectonics New.

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