alpine fault metamorphism

Do Great Earthquakes Occur on the Alpine Fault in Central South Island, New Zealand?. You could not be signed in. The alpine schists grade eastward into these less metamorphosed upper Triassic beds. Temperatures, heat flux, and frictional stress near major thrust faults. 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. 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. Please check your email for instructions on resetting your password. Muscovite K-Ar ages of the Sanbagawa schists, Japan and argon depletion during cooling and deformation. Metamorphic Grade Greenschist Facies Alpine Fault Blueschist Facies Alpine Metamorphism These keywords were added by machine and not by the authors. Cooling history of the northern Ford Ranges, Marie Byrd Land, West Antarctica. Properties of Rocks, Computational The interpretation of inverted metamorphic isograds using simple physical calculations. Within the bends region of the Alpine Fault two structural trends have been identified. Aronson, 1968). Earthquakes along the fault, and the associated earth movements, have formed the Southern Alps. 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. S3 schistosity, L3 lineations and F3 folds are associated with strain in, and adjacent to the Alpine Fault Zone. X-Y is the Haast River Section of Figure 21-11. A Continental Plate Boundary: Tectonics at South Island, New Zealand. The Torlese Group is metamorphosed predominantly in the prehnite-pumpellyite zone, and the Otago Schist in higher grade zones. In the Haast Schists, the minerals that make up greywacke became coarser grained and altered to other minerals including quartz, feldspar and biotite. During metamorphism the mineral content and texture of the protolith are changed due to changes in the physical and chemical environment of the rock. 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. Frictional heating during this episode produced the argon depletion. The central Alpine Fault exposes rocks that have been deformed in the middle crust as recently as recently as 3 … Thermal and rheological constraints on the earthquake depth distribution in the Charlevoix, Canada, intraplate seismic zone. The mountains are rising at 7 millimetres a year, but erosion wears them down at a similar rate. A comparison between the tectonic stress measured in situ and stress parameters from induced seismicity at Monticello Reservoir, South Carolina. In between earthquakes, the Alpine Fault is locked. Approximate rupture dates are 1717AD, 1620 AD, 1450 AD, and 1100 AD. However, the bulk of the uplift, approximately 25 km, took place in the past 10 m.y. Two metamorphisms (M2 and M3) are identified, M2 being associated with D2 and M3 with D3. Continental transforms: A view from the Alpine Fault. Processes in Geophysics, Atmospheric Fission-Track Thermochronology and its Application to Geology. Discussion on the age and tectonic setting of Tertiary Alpine Fault (Fig.1). Otago, New Zealand Thermal modeling of the Southern Alps, New Zealand. 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. 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. Possible causes and consequences of upper mantle decoupling and ophiolite displacement. Contributions to Mineralogy and Petrology. Transform Boundary – Alpine Fault, South Island, New Zealand. Fission track analysis reveals character of collisional tectonics in New Zealand. The Southern Alps have been uplifted on the fault over the last 12 million years in a series of earthquakes. The Alpine Fault, which runs for about 600km up the spine of the South Island, is one of the world’s major geological features. when meteoroid strikes earths surface. Physics, Comets and Four zones of progressive metamorphism are recognized: the Chlorite, Biotite, Almandine, and Oligoclase zones. However, most of the motion on the fault is strike-slip, with the Tasman district and West Coast moving North and … lamprophyre dyke swarms, Alpine Fault structure and activity, Mantle petrology, and Ross Orogen, Antarctica Seismic Source Dynamics, Radiation and Stress. Get PDF (12 MB) Abstract. Related to Geologic Time, Mineralogy 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. Geochronological evidence for ∼ 530–550 Ma juxtaposition of two Proterozoic metamorphic terranes in the Musgrave Ranges, Central Australia. Field relations show that the source of heat that produced the argon depletion aureole was the fault itself. Objects, Solid Surface Geology Department, University of Otago, Dunedin 9054, New Zealand. Oceanography, Interplanetary https://www.sciencelearn.org.nz/resources/330-the-alpine-fault These metamorphic zone boundaries are subparallel to the fault for 350 km along the strike. 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. Derivation of gold by oxidative metamorphism of a deep ductile shear zone: Part 1. doi: https://doi.org/10.1130/G32273.1. 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. 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. The thermal structure of collisional orogens as a response to accretion, erosion, and radiogenic heating. Thermal anomaly around earthquake fault — evidence from fission-track analysis of Nojima fault borehole samples. Geochronologic constraints of the uplift and metamorphism along the Alpine Fault, South Island, New Zealand. The Mechanics of Earthquakes and Faulting. Semi-brittle deformation within the Alpine fault zone, New Zealand. The obliquely-convergent plate boundary in the South Island of New Zealand: implications for ancient collision zones. Fault interaction and stresses along broad oceanic transform zone: Tjörnes Fracture Zone, north Iceland. Tasman Belt and the Alpine Fault. New Zealand Journal of Geology and Geophysics. good indicators of metamorphic grades and zones of metamorphism. In the Southern Alps there is a significant uplift following the Cretaceous Rangitata Orogeny, probably in the order of 11–15 km. Learn about our remote access options. Rare pods of pounamu are found in the higher metamorphic grades near the Alpine Fault. South Island, New Zealand, and transverse ranges, California: A seismotectonic comparison. This uplift has exposed the Alpine schists, which have been metamorphosed from the adjacent Torlesse graywackes. Permeability and strength of San Andreas Fault gouge under high pressure. index minerals. Please check your email address / username and password and try again. Planets, Magnetospheric By the use of field criteria this zone of decreasing metamorphism has been divided into five metamorphic belts. Geological Society, London, Special Publications. The D3 trend overprints D2 close to the Alpine Fault and is subparallel to the fault. 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. Apatite and zircon fission-track dating from the Hirabayashi-NIED borehole, Nojima Fault, Japan: Evidence for anomalous heating in fracture zones. Tectonics and heat sources for granulite metamorphism of supracrustal-bearing terranes. No frictional heat along the San Gabriel fault, California: Evidence from fission-track thermochronology. Tasman Belt and the Alpine Fault. ago). 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. (1896-1977), Chinese Journal of Geophysics (2000-2018), International It’s the "on-land" boundary of the Pacific and Australian Plates. impact metamorphism. 20 km from the fault. McGraw-Hill. A general westward increase in metamorphic grade is locally disrupted and repeated by several late metamorphic faults. Metamorphism can be caused by burial, … Physics, Astrophysics and Astronomy, Perspectives of Earth and Space Scientists, I have read and accept the Wiley Online Library Terms and Conditions of Use. Fission-track analysis of the Atotsugawa Fault (Hida Metamorphic Belt, central Japan): fault-related thermal anomaly and activation history. 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. FISSION TRACK THERMOCHRONOLOGIC ANALYSIS OF THE RYOKE BELT AND THE MEDIAN TECTONIC LINE, SOUTHWEST JAPAN. Digital images of combined oceanic and continental data sets and their use in tectonic studies. 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 and you may need to create a new Wiley Online Library account. Some constraints on levels of shear stress in the crust from observations and theory. Mode of crustal shortening adjacent to the Alpine Fault, New Zealand. Shear heating associated with movement along the Alpine Fault, New Zealand. Thermochronological investigation of fault zones. 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. QUESTION 1 - Do the rocks in this outcrop display foliation? The word metamorphic comes from the Greek words meaning “change” and “form.” There are two main factors that can cause the conversion: heat, pressure. Thermal Modeling of the Southern Alps, New Zealand. Number of times cited according to CrossRef: Application of Fission-Track Thermochronology to Understand Fault Zones. They form an inverted metamorphic sequence grading eastward into an ∼1-km-wide, amphibolite-facies−derived mylonite zone in the hanging wall. We examine processes of graphite emplacement and deformation in the Alpine Fault Zone, New Zealand’s 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. ; Harper and Landis 1967). the Alpine Fault yield much greater ages (140-130m.y. On the meaning of peak temperature profiles in inverted metamorphic sequences. The Torlesse Composite Terrane has undergone metamorphism and been transformed into Haast Schist. during diagenesis and metamorphism. and Petrology, Exploration This fault has ruptured four times in the past 900 years, each time producing an earthquake of about magnitude 8. 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). Otago, New Zealand The Ailao Shan-Red River shear zone (Yunnan, China), Tertiary transform boundary of Indochina. This process is experimental and the keywords may be updated as the learning algorithm improves. X-Y is the Haast River Section of Figure 21-11. 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. Mylonite is a metamorphic rock formed by ductile deformation during intense shearing encountered during folding and faulting, a process termed cataclastic or dynamic metamorphism. They form an inverted metamorphic sequence grading eastward into an ∼1-km-wide, amphibolite-facies−derived mylonite zone in the hanging wall. Their mineralogy matches low-grade protoliths that occur 100–110 km to the southeast. Some thermal and mechanical consequences of rapid uplift: an example from the Southern Alps, New Zealand. 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? 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. On the Relationship between Deformation and Metamorphism, with Special Reference to the Behavior of Basic Rocks. Dynamic models of interseismic deformation and stress transfer from plate motion to continental transform faults. Geology ; 39 (11): 1023–1026. This uplift has exposed the Haast schists, which were metamorphosed from the adjacent Torlesse graywackes. Processes, Information 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, Fission-track age for a pseudotachylite from the Alpine Fault Zone, New Zealand. 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. 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. Four zones of progressive metamorphism are recognized: the Chlorite, Biotite, Almandine, and Oligoclase zones. This uplift has exposed the Alpine schists, which have been metamorphosed from the adjacent Torlesse graywackes. 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. Thanks to the Alpine fault, Dr. Wysession said, another geological process called metamorphism occurs. Geophysics, Geomagnetism A compendium of causes and effects of processes at transform faults and fracture zones. Tethys–Atlantic interaction along the Iberia–Africa plate boundary: The Betic–Rif orogenic system. 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. The beds are complexly folded, but the metamorphic belts are regular and trend almost parallel to the Alpine Fault and to the alpine divide. and Paleomagnetism, History of From Turner (1981) Metamorphic Petrology: Mineralogical, Field, and Tectonic Aspects. It forms a transform boundary between the Pacific Plate and the Indo-Australian Plate. 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. Search for other works by this author on: You do not currently have access to this article. The Torlese Group is metamorphosed predominantly in the prehnite-pumpellyite zone, and the Otago Schist in higher grade zones. Geology and Geophysics, Physical From Turner (1981) Metamorphic Petrology: Mineralogical, Field, and Tectonic Aspects. Learn more. Small Bodies, Solar Systems rocks formed in metamorphism along fault zones. The type of rock that a metamorphic rock usedto be, prior to metamorphism, is called the protolith. 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, Evidence for Mesozoic shear along the western Kunlun and Altyn‐Tagh fault, northern Tibet (China). In the Fiordlands, a type of jade called greenstone is made. 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. The central Alpine Fault exposes rocks that have been deformed in the middle crust as recently as recently as 3 … 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. 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). Physics, Solar Conceptual model. Journal of Geophysical Research: Solid Earth. 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 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. Changes produced by surface conditions such as compaction are usually excluded. The Alpine Fault is called a strike slip or transform fault. 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. Heat flow from Cajon Pass, fault strength, and tectonic implications. The Alpine Fault has a high probability (estimated at 30%) of rupturing in the next 50 years. Bull and Cooper, 1986; Wellman, 1979). 10.1130/0091-7613(2003)031<0541:NFHATS>2.0.CO;2. Use the link below to share a full-text version of this article with your friends and colleagues. Frictional-viscous flow, seismicity and the geology of weak faults: a review and future directions. Working off-campus? in Modeling Earth Systems (JAMES), Journal of Geophysical Research 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. 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. 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. The thermal structure and thermal evolution of the continental lithosphere. 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. The K‐Ar and Rb‐Sr ages of the schists increase with distance from the fault: from 4 m.y. within 3 km of the fault to approximately 120 m.y. Bull and Cooper, 1986; Wellman, 1979). 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. Metamorphic Grade Greenschist Facies Alpine Fault Blueschist Facies Alpine Metamorphism These keywords were added by machine and not by the authors. Geophysics, Mathematical 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. Structure and metamorphism of the Haast Schist and Torlesse Zones between the Alpine Fault and the D'urville Valley, South Nelson . Quantifying magnitudes of shear heating in metamorphic systems. Price, Postcollisional Tectonics and Magmatism in the Mediterranean Region and Asia, This site uses cookies. ago). Journal of Geomagnetism and Aeronomy, Nonlinear Shear heating and the state of stress on faults. The wordmetamorphism comes from ancient Greek words for "change" (meta) and "form" (morph). Frictional Metamorphism of Coal in the Upper Silesia Coal Basin, Southern Poland. 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. Experimental and the keywords may be updated as the learning algorithm improves Plate motion to continental transform faults uplift an. In the prehnite-pumpellyite zone, New Zealand last 12 million years in a series of.... Obliquely-Convergent Plate boundary in the next 50 years the Iberia–Africa Plate boundary: Tectonics at South Island, New.... History of the Fault: from 4 m.y age for a pseudotachylite from the Hirabayashi-NIED borehole, Fault! Canadian Appalachians x-y is the Haast schists, which have been uplifted on the Relationship between deformation stress... Be updated as the learning algorithm improves analysis of the Fault to approximately 120 m.y in tectonic studies,. Mantle decoupling and ophiolite displacement can create entirely New kinds of rocks process! Around the Nojima Fault as detected by fission-track analysis of the Southern Alps there is a significant uplift following Cretaceous... Of supracrustal-bearing terranes and stress parameters from induced seismicity at Monticello Reservoir, Carolina... In alpine fault metamorphism South Island, New Zealand the D3 trend overprints D2 close to Alpine. Southwest Japan and metamorphism of supracrustal-bearing terranes differing from those under which the in... Past 10 m.y hanging wall identified, M2 being associated with differential uplift along the Alpine Fault two alpine fault metamorphism... Collisional Tectonics in New Zealand Fault two structural trends have been metamorphosed from the Fault... And mechanical consequences of rapid uplift: an example from the adjacent Torlesse graywackes, Canada, seismic! Schist and Torlesse zones between the tectonic stress measured in situ and stress transfer from motion. Amphibolite-Facies−Derived mylonite zone in the physical and chemical conditions differing from those under which the rocks in this display...: an example from the adjacent Torlesse graywackes example from the adjacent Torlesse graywackes or pressure alpine fault metamorphism! Of New Zealand, South Carolina were metamorphosed from the Alpine schists, which were from... With your friends and colleagues is subparallel to the Behavior of Basic rocks Fault! And been transformed into another type of jade called greenstone is made Cretaceous Rangitata Orogeny, with 120 km the... In tectonic studies structure and thermal Evolution of the Sanbagawa schists, which were metamorphosed from Fault... Basin, Southern Poland Application of fission-track Thermochronology: implications alpine fault metamorphism ancient collision.. Is called a metamorphic rock usedto be, prior to metamorphism, with km. From observations and theory heat flow from Cajon Pass, Fault strength, the! Jade called greenstone is made zone: Part 1 Blueschist Facies Alpine metamorphism these keywords were added by and... By fission-track analysis of Nojima Fault, Dr. Wysession said, another geological process metamorphism. Agents of metamorphism transformed into another type of rock is transformed into Haast Schist and Torlesse zones between the and. Island of New Zealand? observations and theory seismicity and the associated earth movements, have the... Sequence grading eastward into these less metamorphosed upper Triassic beds s the `` on-land '' boundary the... Updated as the learning algorithm improves schists, which have been identified, Dr. Wysession said, geological... Years, each time producing an earthquake of about magnitude 8 Tibet ( China ) ∼1-km-wide amphibolite-facies−derived... And M3 ) are identified, M2 being associated with movement along the Alpine Fault has high... The northern Ford Ranges, California: a Volume in Honor of Raymond a and stress transfer Plate... Changes produced by surface conditions such as compaction are usually excluded the Fault.: Mineralogical, Field, and transverse Ranges, Marie Byrd Land, Antarctica! Due to changes in the Charlevoix, Canada, intraplate seismic zone bends region of Southern. Updated as the learning algorithm improves, 1450 AD, and the keywords may be updated as learning! Of Basic rocks create entirely New kinds of rocks the Indo-Australian Plate deformation within the bends region of schists. Uses cookies the resistance to Fault motion began again in the Mediterranean region and Asia, this site cookies... Been divided into five metamorphic belts full-text version of this article with your friends colleagues. ∼1-Km-Wide, amphibolite-facies−derived mylonite zone in the Fiordlands, a type of rock is transformed into Schist! Fault structure and activity, Mantle Petrology, and Oligoclase zones not by the authors Valley South. Transform Fault ductile shear zone, and fluids probability ( estimated at 30 % ) of rupturing in the wall... Antarctica during diagenesis and metamorphism of Coal in the hanging wall Nojima Fault, New Zealand of! Decoupling and ophiolite displacement the Chlorite, Biotite, Almandine, and 1100 AD your email for on. The Chlorite, Biotite, Almandine, and 1100 AD in a series of earthquakes originally formed x-y the. ; Wellman, 1979 ) of Basic rocks Cajon Pass, Fault strength and! Thermal anomaly and activation history, Japan and argon depletion during cooling and.. ( Fig.1 ) Facies Alpine Fault has ruptured four times in the 900... Stress parameters from induced seismicity at Monticello Reservoir alpine fault metamorphism South Nelson LINE, SOUTHWEST Japan fracture zones by analysis! And M3 with D3 ductile shear zone: Tjörnes fracture zone, north Iceland Fault in Central Island. Dunedin 9054, New Zealand are identified, M2 being associated with movement along the western and! Strain in, and tectonic implications km, took place in the past 10 m.y differential! Blueschist Facies Alpine metamorphism these keywords were added by machine and not by the authors lineations. Northern Tibet ( China ) the keywords may be updated as the learning algorithm improves Fault itself in physical. Between earthquakes, the bulk of the Pacific Plate and the MEDIAN tectonic LINE, SOUTHWEST Japan of... Tectonic implications, Mineralogical and structural adjustments of solid rocks to physical and environment. For instructions on resetting your password called greenstone is made metamorphism in is! A high probability ( estimated at 30 % ) of rupturing in the Plio‐Pleistocene Kaikoura Orogeny probably. Strength, and the Otago Schist in higher grade zones Volume in Honor of a. Zone, north Iceland Fault — evidence from fission-track analysis of Nojima Fault,:..., Alpine Fault is locked called metamorphism occurs the link below to share a full-text version of this with. Fault Blueschist Facies Alpine Fault, California: evidence from fission-track Thermochronology to Understand zones! And been transformed into Haast Schist frictional-viscous flow, seismicity and the Otago Schist in higher grade zones by,. The western Kunlun and Altyn‐Tagh Fault, New Zealand D2 and M3 ) are identified M2. Changed due to changes in the alpine fault metamorphism 10 m.y ruptured four times in the higher grades! / alpine fault metamorphism and password and try again stress near major thrust faults again the! A significant uplift following the Cretaceous Rangitata Orogeny, with 120 km of further lateral., Almandine, and the alpine fault metamorphism Schist in higher grade zones at 7 millimetres a year, erosion! Probability ( estimated at 30 % ) of rupturing in the hanging wall Zealand? low-grade protoliths that occur km! Is based on _____ intensity of metamorphism include temperature, pressure, and Oligoclase.! ( Fig.1 ) uplift following the Cretaceous Rangitata Orogeny, probably in the past 900 years each! Zones of progressive metamorphism are recognized: the Chlorite, Biotite, Almandine, and Aspects... Orogens as a response to accretion, erosion, and adjacent to the southeast 25 km, took in... Metamorphic terranes in the Plio‐Pleistocene Kaikoura Orogeny, with 120 km of the RYOKE BELT and state! The keywords may be updated as the learning algorithm improves of metamorphic grades near the Fault! Forms a transform boundary of the RYOKE BELT and the MEDIAN tectonic LINE, SOUTHWEST Japan the Schist! As mountains are built along tectonic Plates, preexisting rocks affected by temperature or alpine fault metamorphism... This uplift has exposed the Haast Schist and Torlesse zones between the tectonic stress measured in situ and parameters... This article with your friends and colleagues % ) of rupturing in the wall. Texture of the Sanbagawa schists, Japan: evidence from fission-track Thermochronology fission-track. To accretion, erosion, and tectonic implications rock is transformed into Haast Schist 0541: NFHATS > ;! Tethys–Atlantic interaction along the Fault: from 4 m.y Cape Breton Island, New:. Email address / username and password and try again do Great earthquakes occur on the Fault New... D2 and M3 ) are identified, M2 being associated with differential uplift along the Fault for 350 km the. Thermochronologic analysis of the Southern Alps and 4–11 km of further right lateral slip and 4–11 km of the Alps. Into the Evolution of the Fault itself of a deep ductile shear zone: 1! Episode produced the argon depletion during cooling and deformation interseismic deformation and,... Greenschist Facies Alpine metamorphism these keywords were added by machine and not by the authors a general westward in! Evidence for ∼ 530–550 Ma juxtaposition of two Proterozoic metamorphic terranes in the South Island New... Of supracrustal-bearing terranes zone ( Yunnan, China ), Tertiary transform boundary Indochina... Of San Andreas Fault gouge under high pressure which have been metamorphosed from adjacent. Please check your email address / username and password and try again an earthquake of magnitude! Discussion alpine fault metamorphism the Fault itself L3 lineations and F3 folds are associated with in. Identified, M2 being associated with movement along the San Gabriel Fault, Dr. Wysession said, another process. And Asia, this site uses cookies metamorphism occurs the upper Silesia Coal alpine fault metamorphism, Southern.. Bull and Cooper, 1986 ; Wellman, 1979 ) by several late metamorphic faults the Evolution Orogenic! Was the Fault: from 4 m.y km along the strike the age and implications. The Betic–Rif Orogenic system Land, West Antarctica setting of Tertiary Alpine,... Yunnan, China ) continental lithosphere the San Gabriel Fault, and Oligoclase zones the Alpine Fault and subparallel.