Relevant bibliographies by topics / Metamorphism (Geology) Thrust faults (Geology)

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Academic literature on the topic 'Metamorphism (Geology) Thrust faults (Geology)'

Author: Grafiati
Published: 4 June 2021
Last updated: 8 February 2022

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Journal articles on the topic "Metamorphism (Geology) Thrust faults (Geology)"

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Schmidt, William L., and John P. Platt. "Metamorphic Temperatures and Pressures across the Eastern Franciscan: Implications for Underplating and Exhumation." Lithosphere 2020, no. 1 (2020): 1–19. http://dx.doi.org/10.2113/2020/8853351.

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Abstract The Eastern Belt of the Franciscan Complex in the northern California Coast Ranges consists of coherent thrust sheets predominately made up of ocean floor sediments subducted in the Early Cretaceous and then accreted to the overriding plate at depths of 25-40 km. Progressive packet accretion resulted in the juxtaposition of a series of thrust sheets of differing metamorphic grades. This study utilizes laser Raman analysis of carbonaceous material to determine peak metamorphic temperatures across the Eastern Belt and phengite barometry to determine peak metamorphic pressures. Locating
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Aller, Jesus, María Luz Valín, Susana García-López, Covadonga Brime, and Fernando Bastida. "Superposition of tectono-thermal episodes in the southern Cantabrian Zone (foreland thrust and fold belt of the Iberian Variscides, NW Spain)." Bulletin de la Société Géologique de France 176, no. 6 (2005): 487–97. http://dx.doi.org/10.2113/176.6.487.

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Abstract The combined use of the illite “crystallinity” Kübler index (KI) and the conodont colour alteration index (CAI) has revealed the existence of three thermal episodes in an area affected by thin-skin tectonics, close to the internal zones of the Variscan orogen in NW Spain. In the southernmost part of the study area, the first episode gave rise to a regional syntectonic Variscan metamorphism. The associated deformation involves the development of a slaty cleavage, which is mainly recognized in Precambrian rocks. Towards the foreland, the syntectonic metamorphism disappears and only an
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Treloar, Peter J., David C. Rex, and Matthew P. Williams. "The role of erosion and extension in unroofing the Indian Plate thrust stack, Pakistan Himalaya." Geological Magazine 128, no. 5 (1991): 465–78. http://dx.doi.org/10.1017/s0016756800018628.

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AbstractIn north Pakistan cooling history data show that metamorphism within the Indian Plate predated 40 Ma, and that the post-metamorphic thrust stack developed within the crystalline internal zones had cooled to less than 100 °C by c. 18 Ma. Much of this cooling occurred during late Oligocene to early Miocene time and can be equated to substantial unroofing of the metamorphic pile. This unroofing was by a combination of erosion, recorded in Lower Miocene molasse deposits within the foreland basins, and by large scale hinterland (northward) directed extensional normal faults developed within
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Affinati, Suzanne Craddock, Thomas D. Hoisch, Michael L. Wells, and Jeffrey D. Vervoort. "Pressure-temperature-time paths from the Funeral Mountains, California, reveal Jurassic retroarc underthrusting during early Sevier orogenesis." GSA Bulletin 132, no. 5-6 (2019): 1047–65. http://dx.doi.org/10.1130/b35095.1.

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Abstract New metamorphic pressure-temperature (P-T) paths and Lu-Hf garnet ages reveal a temporal correlation between Middle to Late Jurassic retroarc underthrusting and arc magmatism in southwestern North America. P-T paths were determined for 12 garnet porphyroblasts from six samples from the Chloride Cliff area of the Funeral Mountains in southeastern California. The composite path shows a pressure increase from 4.2 to 6.5 kbar as temperature increased from 550 to 575 °C, followed by a pressure decrease to 5.1 kbar during a further increase in temperature to 590 °C. Lu-Hf garnet ages from a
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Carr, Sharon D. "The southern Omineca Belt, British Columbia: new perspectives from the Lithoprobe Geoscience Program." Canadian Journal of Earth Sciences 32, no. 10 (1995): 1720–39. http://dx.doi.org/10.1139/e95-135.

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Geological, isotopic, and geochronology studies carried out by university and government researchers, concurrently with the Lithoprobe program, have greatly refined our understanding of the regional geology, crustal structure, and tectonics of the Omineca Belt. Sound correlations have been established between surface geology and seismic reflection data. Cretaceous–Eocene thrust faults that are imaged in the subsurface in the Shuswap complex may be part of a break-forward thrust system that feeds into the Purcell Anticlinorium and the Foreland Belt. The Monashee décollement is the western conti
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Godin, Laurent, Renaud Soucy La Roche, Lindsay Waffle, and Lyal B. Harris. "Influence of inherited Indian basement faults on the evolution of the Himalayan Orogen." Geological Society, London, Special Publications 481, no. 1 (2018): 251–76. http://dx.doi.org/10.1144/sp481.4.

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AbstractIndian basement faults, which bound three orogen-perpendicular palaeotopographic ridges of Precambrian Indian basement south of the Himalaya, extend to the base of the Indian lithosphere and to the northern extent of the Indian lithosphere underneath Tibet. In the eastern Himalaya, the active orogen-perpendicular Yadong–Gulu graben is aligned with an earthquake-generating strike-slip fault in the high Himalaya. We argue that the graben results from crustal necking during reactivation of the underplated basement fault. In the central Himalaya, along-strike diachronous deformation and me
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Lamont, Thomas N., Michael P. Searle, David J. Waters, et al. "Compressional origin of the Naxos metamorphic core complex, Greece: Structure, petrography, and thermobarometry." GSA Bulletin 132, no. 1-2 (2019): 149–97. http://dx.doi.org/10.1130/b31978.1.

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Abstract The island of Naxos, Greece, has been previously considered to represent a Cordilleran-style metamorphic core complex that formed during Cenozoic extension of the Aegean Sea. Although lithospheric extension has undoubtedly occurred in the region since 10 Ma, the geodynamic history of older, regional-scale, kyanite- and sillimanite-grade metamorphic rocks exposed within the core of the Naxos dome is controversial. Specifically, little is known about the pre-extensional prograde evolution and the relative timing of peak metamorphism in relation to the onset of extension. In this work, n
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Mortensen, J. K. "Geology and U–Pb geochronology of the Klondike District, west-central Yukon Territory." Canadian Journal of Earth Sciences 27, no. 7 (1990): 903–14. http://dx.doi.org/10.1139/e90-093.

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Geological mapping and U–Pb geochronology of the Klondike District provide new information on the nature and evolution of the Yukon–Tanana terrane (YTT) in western Yukon. The area is underlain by a sequence of thrust panels of regional extent. A continuously mappable sequence of interlayered metasedimentary and metavolcanic rocks is intruded by a variety of deformed metaplutonic rocks within two of these thrust sheets. Layering in the metasediments and metavolcanics is considered to be at least in part transposed stratigraphy. Small bodies of greenstone and altered ultramafic rocks thought to
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Pognante, U., D. Castelli, P. Benna, et al. "The crystalline units of the High Himalayas in the Lahul–Zanskar region (northwest India): metamorphic–tectonic history and geochronology of the collided and imbricated Indian plate." Geological Magazine 127, no. 2 (1990): 101–16. http://dx.doi.org/10.1017/s0016756800013807.

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AbstractIn the High Himalayan belt of northwest India, crustal thickening linked to Palaeogene collision between India and Eurasia has led to the formation of two main crystalline tectonic units separated by the syn-metamorphic Miyar Thrust: the High Himalayan Crystallines sensu stricto (HHC) at the bottom, and the Kade Unit at the top. These units are structurally interposed between the underlying Lesser Himalaya and the very low-grade sediments of the Tibetan nappes. They consist of paragneisses, orthogneisses, minor metabasics and, chiefly in the HHC, leucogranites. The HHC registers: a pol
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Schaubs, Peter M., and Sharon D. Carr. "Geology of metasedimentary rocks and Late Cretaceous deformation history in the northern Valhalla complex, British Columbia." Canadian Journal of Earth Sciences 35, no. 9 (1998): 1018–36. http://dx.doi.org/10.1139/e98-048.

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The Valhalla complex, a Cordilleran metamorphic core complex, is a domal culmination made up of gently dipping interlayered sheets of igneous and supracrustal rocks that were deformed and metamorphosed in the Middle Jurassic and Late Cretaceous, and exhumed by extensional faults in the Eocene. Mapping, fabric, and metamorphic studies of predominantly metasedimentary rocks in Valhalla and Passmore domes in the northern part of the complex, together with published geochronological data, reveal a significant Late Cretaceous tectonic history. This includes extensive magmatism, the culmination of u
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Dissertations / Theses on the topic "Metamorphism (Geology) Thrust faults (Geology)"

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Forest, Richard C. "Structures and metamorphism of Ptarmigan Creek area, Selwyn Range, B.C." Thesis, McGill University, 1985. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=63337.

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Krauss, Jason B. "High-pressure (HP), granulite-facies thrusting in a thick-skinned thrust system in the eastern Grenville Province, central Labrador /." Internet access available to MUN users only, 2002. http://collections.mun.ca/u?/theses,42716.

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Sturms, Jason M. "Surficial mapping and kinematic modeling of the St. Clair thrust fault, Monroe County, West Virginia." Morgantown, W. Va. : [West Virginia University Libraries], 2008. https://eidr.wvu.edu/etd/documentdata.eTD?documentid=5597.

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Thesis (M.S.)--West Virginia University, 2008.<br>Title from document title page. Document formatted into pages; contains vii, 84 p. : ill. (some col.), maps (some col.). Includes abstract. Includes bibliographical references (p. 75-78).
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Roberts, Gerald Patrick. "Deformation and diagenetic histories around foreland thrust faults." Thesis, Durham University, 1990. http://etheses.dur.ac.uk/6258/.

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This thesis is concerned with the relationship between deformation and fluid flow along thrust zones. The study was carried out in the Vercors, French Sub-Alpine Chains foreland thrust belt. Study of the thermal alteration of organic matter within the area suggests that prior to west-north-west directed thrusting within the Vercors basin in post middle Miocene times, the rocks now exposed at the surface had not been buried beneath a large thickness of foredeep sediments and remained within the diagenetic realm. Deeper buried levels within the stratigraphy passed into the hydrocarbon generation
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McClay, K. R. "Structural geology and tectonics /." Title page, contents and abstract only, 2000. http://web4.library.adelaide.edu.au/theses/09SD/09sdm126.pdf.

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Patthoff, D. Alex. "Structure and crustal balance of the Herald Arch and Hope Basin in the Chukchi Sea, Alaska." Morgantown, W. Va. : [West Virginia University Libraries], 2008. https://eidr.wvu.edu/etd/documentdata.eTD?documentid=5888.

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Thesis (M.S.)--West Virginia University, 2008.<br>Title from document title page. Document formatted into pages; contains vii, 106 p. : ill. (some col.), col. maps. Includes abstract. Includes bibliographical references (p. 100-103).
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Wigginton, Sarah S. "The Influence of Mechanical Stratigraphy on Thrust-Ramp Nucleation and Propagation of Thrust Faults." DigitalCommons@USU, 2018. https://digitalcommons.usu.edu/etd/7344.

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Our current understanding of thrust fault kinematics predicts that thrust faults nucleate on low angle, weak surfaces before they propagate upward and forms a higher angle ramp. While this classic kinematic and geometric model serves well in some settings, it does not fully consider the observations of footwall deformation beneath some thrust faults. We examine an alternative end-member model of thrust fault formation called “ramp-first” fault formation. This model hypothesizes that in mechanically layered rocks, thrust ramps nucleate in the structurally strong units, and that faults can propa
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Lock, Jane. "Interpreting how low-temperature thermochronometric data in fold-and-thrust belts : an example from the Western Foothills, Taiwan /." Thesis, Connect to this title online; UW restricted, 2007. http://hdl.handle.net/1773/6698.

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Leonard, Richard. "Variable structural style, stratigraphy, total strain and metamorphism adjacent to the Purcell thrust, near Blackman Creek, B.C." Thesis, McGill University, 1985. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=63282.

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Tully, Justin Edward. "Structural interpretation of the Elk Range thrust system, Western Colorado, USA." Thesis, Montana State University, 2009. http://etd.lib.montana.edu/etd/2009/tully/TullyJ0509.pdf.

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The Elk Mountains of western Colorado expose Pennsylvanian-Permian strata that were deposited along the western margin of the Ancestral Central Colorado Trough. These rocks were displaced southwestward in Late Cretaceous-Early Paleogene time along the northeast-dipping Elk Range thrust system. The thrust system trends southeast from Redstone, CO to the Fossil Ridge wilderness and includes the en echelon Elk Range and Brush Creek thrust faults. This thrust system represents the deeply eroded up-plunge core of a major Laramide basement-cored fold in western Colorado, the Grand Hogback monocline.
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Books on the topic "Metamorphism (Geology) Thrust faults (Geology)"

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Nelson, Arthur E. Stacked crystalline thrust sheets and episodes of regional metamorphism in northeastern Georgia and northwestern South Carolina: A reinterpretation. Dept. of the Interior, 1988.

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Nelson, Arthur E. Stacked crystalline thrust sheets and episodes of regional metamorphism in northeastern Georgia and northwestern South Carolina: A reinterpretation. U.S. G.P.O., 1988.

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Klint, Knud Erik S. The Hanklit glaciotectonic thrust fault complex, Mors, Denmark. Geological Survey of Denmark, 1995.

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Thrust fault-related folding. American Association of Petroleum Geologists, 2011.

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Bli͡uman, B. A. Ėndogennye rezhimy i tipy metamorfizma skladchatykh oblasteĭ. "Nedra," Leningradskoe otd-nie, 1985.

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Emplacement mechanisms of nappes and thrust sheets. Kluwer Academic Publishers, 1998.

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Lateral ramps in the folded Appalachians and in overthrust belts worldwide: A fundamental element of thrust-belt architecture. U.S. G.P.O., 2000.

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A, Bukharov A., ред. Nadvigovye i sharʹi͡a︡zhnye struktury Pribaĭkalʹi͡a︡. "Nauka," Sibirskoe otd-nie, 1990.

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Sizykh, V. I. Sharʹi︠a︡zhno-nadvigovai︠a︡ tektonika okrain drevnikh platform. Izd-vo SO RAN, Filial "Geo", 2001.

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Brandon, M. T. The late Cretaceous San Juan thrust system, San Juan Islands, Washington. Geological Society of America, 1988.

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Book chapters on the topic "Metamorphism (Geology) Thrust faults (Geology)"

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Hansen, Lars. "Age Relationships between Normal and Thrust Faults near the Caledonian Front at the Vietas Hydropower Station, Northern Sweden." In The Caledonide Geology of Scandinavia. Springer Netherlands, 1989. http://dx.doi.org/10.1007/978-94-009-2549-6_8.

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McConnell, Keith I., Robert D. Hatcher, and Teunis Heyn. "Day 9: Geology of the Sauratown Mountains window." In Southern Appalachian Windows: Comparison of Styles, Scales, Geometry and Detachment Levels of Thrust Faults in the Foreland and Internides of a Thrust-Dominated Orogen: Atlanta, Georgia to Winston-Salem, North Carolina June 28–July 8, 1989. American Geophysical Union, 1989. http://dx.doi.org/10.1029/ft167p0078.

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Steltenpohl, Mark G. "Day 2: Geology of the southernmost exposures of the Pine Mountain window, Alabama." In Southern Appalachian Windows: Comparison of Styles, Scales, Geometry and Detachment Levels of Thrust Faults in the Foreland and Internides of a Thrust-Dominated Orogen: Atlanta, Georgia to Winston-Salem, North Carolina June 28–July 8, 1989. American Geophysical Union, 1989. http://dx.doi.org/10.1029/ft167p0021.

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Hooper, Robert J., and Robert D. Hatcher. "Day 1: The geology of the east end of the Pine Mountain window and adjacent Piedmont, central Georgia." In Southern Appalachian Windows: Comparison of Styles, Scales, Geometry and Detachment Levels of Thrust Faults in the Foreland and Internides of a Thrust-Dominated Orogen: Atlanta, Georgia to Winston-Salem, North Carolina June 28–July 8, 1989. American Geophysical Union, 1989. http://dx.doi.org/10.1029/ft167p0011.

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Wakabayashi, John. "Field and petrographic reconnaissance of Franciscan complex rocks of Mount Diablo, California: Imbricated ocean floor stratigraphy with a roof exhumation fault system." In Regional Geology of Mount Diablo, California: Its Tectonic Evolution on the North America Plate Boundary. Geological Society of America, 2021. http://dx.doi.org/10.1130/2021.1217(09).

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ABSTRACT Franciscan subduction complex rocks of Mount Diablo form an 8.5 by 4.5 km tectonic window, elongated E-W and fault-bounded to the north and south by rocks of the Coast Range ophiolite and Great Valley Group, respectively, which lack the burial metamorphism and deformation displayed by the Franciscan complex. Most of the Franciscan complex consists of a stack of lawsonite-albite–facies pillow basalt overlain successively by chert and clastic sedimentary rocks, repeated by faults at hundreds of meters to &amp;lt;1 m spacing. Widely distributed mélange zones from 0.5 to 300 m thick containing high-grade (including amphibolite and eclogite) assemblages and other exotic blocks, up to 120 m size, form a small fraction of exposures. Nearly all clastic rocks have a foliation, parallel to faults that repeat the various lithologies, whereas chert and basalt lack foliation. Lawsonite grew parallel to foliation and as later grains across foliation. The Franciscan-bounding faults, collectively called the Coast Range fault, strike ENE to WNW and dip northward at low to moderate average angles and collectively form a south-vergent overturned anticline. Splays of the Coast Range fault also cut into the Franciscan strata and Coast Range ophiolite and locally form the Coast Range ophiolite–Great Valley Group boundary. Dip discordance between the Coast Range fault and overlying Great Valley Group strata indicates that the northern and southern Coast Range fault segments were normal faults with opposite dip directions, forming a structural dome. These relationships suggest accretion and fault stacking of the Franciscan complex, followed by exhumation along the Coast Range fault and then folding of the Coast Range fault.
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Ogawa, Yujiro, and Shin’ichi Mori. "Gravitational sliding or tectonic thrusting?: Examples and field recognition in the Miura-Boso subduction zone prism." In Plate Tectonics, Ophiolites, and Societal Significance of Geology: A Celebration of the Career of Eldridge Moores. Geological Society of America, 2021. http://dx.doi.org/10.1130/2021.2552(10).

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ABSTRACT Discrimination between gravity slides and tectonic fold-and-thrust belts in the geologic record has long been a challenge, as both have similar layer shortening structures resulting from single bed duplication by thrust faults of outcrop to map scales. Outcrops on uplifted benches within the Miocene to Pliocene Misaki accretionary unit of Miura-Boso accretionary prism, Miura Peninsula, central Japan, preserve good examples of various types of bedding duplication and duplex structures with multiple styles of folds. These provide a foundation for discussion of the processes, mechanisms, and tectonic implications of structure formation in shallow parts of accretionary prisms. Careful observation of 2-D or 3-D and time dimensions of attitudes allows discrimination between formative processes. The structures of gravitational slide origin develop under semi-lithified conditions existing before the sediments are incorporated into the prism at the shallow surfaces of the outward, or on the inward slopes of the trench. They are constrained within the intraformational horizons above bedding-parallel detachment faults and are unconformably covered with the superjacent beds, or are intruded by diapiric, sedimentary sill or dike intrusions associated with liquefaction or fluidization under ductile conditions. The directions of vergence are variable. On the other hand, layer shortening structure formed by tectonic deformation within the accretionary prism are characterized by more constant styles and attitudes, and by strong shear features with cataclastic textures. In these structures, the fault surfaces are oblique to the bedding, and the beds are systematically duplicated (i.e., lacking random styles of slump folds), and they are commonly associated with fault-propagation folds. Gravitational slide bodies may be further deformed at deeper levels in the prism by tectonism. Such deformed rocks with both processes constitute the whole accretionary prism at depth, and later may be deformed, exhumed to shallow levels, and exposed at the surface of the trench slope, where they may experience further deformation. These observations are not only applicable in time and space to large-scale thrust-and-fold belts of accretionary prism orogens, but to small-scale examples. If we know the total 3-D geometry of geologic bodies, including the time and scale of deformational stages, we can discriminate between gravitational slide and tectonic formation of each fold-and-thrust belt at the various scales of occurrence.
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Amgaa, Tsolmon, Dieter Mader, Wolf Uwe Reimold, and Christian Koeberl. "Tabun Khara Obo impact crater, Mongolia: Geophysics, geology, petrography, and geochemistry." In Large Meteorite Impacts and Planetary Evolution VI. Geological Society of America, 2021. http://dx.doi.org/10.1130/2021.2550(04).

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ABSTRACT Tabun Khara Obo is the only currently known impact crater in Mongolia. The crater is centered at 44°07′50″N and 109°39′20″E in southeastern Mongolia. Tabun Khara Obo is a 1.3-km-diameter, simple bowl-shaped structure that is well visible in topography and clearly visible on remote-sensing images. The crater is located on a flat, elevated plateau composed of Carboniferous arc-related volcanic and volcanosedimentary rocks metamorphosed to upper amphibolite to greenschist facies (volcaniclastic sandstones, metagraywacke, quartz-feldspar–mica schist, and other schistose sedimentary rocks). Some geophysical data exist for the Tabun Khara Obo structure. The gravity data correlate well with topography. The −2.5–3 mGal anomaly is similar to that of other, similarly sized impact craters. A weak magnetic low over the crater area may be attributed to impact disruption of the regional trend. The Tabun Khara Obo crater is slightly oval in shape and is elongated perpendicular to the regional lithological and foliation trend in a northeasterly direction. This may be a result of crater modification, when rocks of the crater rim preferentially slumped along fracture planes parallel to the regional structural trend. Radial and tangential faults and fractures occur abundantly along the periphery of the crater. Breccias occur along the crater periphery as well, mostly in the E-NE parts of the structure. Monomict breccias form narrow (&amp;lt;1 m) lenses, and polymict breccias cover the outer flank of the eastern crater rim. While geophysical and morphological data are consistent with expectations for an impact crater, no diagnostic evidence for shock metamorphism, such as planar deformation features or shatter cones, was demonstrated by earlier authors. As it is commonly difficult to find convincing impact evidence at small craters, we carried out further geological and geophysical work in 2005–2007 and drilling in 2007–2008. Surface mapping and sampling did not reveal structural, mineralogical, or geochemical evidence for an impact origin. In 2008, we drilled into the center of the crater to a maximum depth of 206 m, with 135 m of core recovery. From the top, the core consists of 3 m of eolian sand, 137 m of lake deposits (mud, evaporites), 34 m of lake deposits (gypsum with carbonate and mud), 11 m of polymict breccia (with greenschist and gneiss clasts), and 19 m of monomict breccia (brecciated quartz-feldspar–mica schist). The breccias start at 174 m depth as polymict breccias with angular clasts of different lithologies and gradually change downward to breccias constituting the dominant lithology, until finally grading into monomict breccia. At the bottom of the borehole, we noted strongly brecciated quartz-feldspar schist. The breccia cement also changes over this interval from gypsum and carbonate cement to fine-grained clastic matrix. Some quartz grains from breccia samples from 192, 194.2, 196.4, 199.3, 201.6, and 204 m depth showed planar deformation features with impact-characteristic orientations. This discovery of unambiguous shock features in drill core samples confirms the impact origin of the Tabun Khara Obo crater. The age of the structure is not yet known. Currently, it is only poorly constrained to post-Cretaceous on stratigraphic grounds.
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