Academic literature on the topic 'P–T pseudosection'
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Journal articles on the topic "P–T pseudosection"
N.Jowhar, T. "Computer Programs for P-T History of Metamorphic Rocks using Pseudosection Approach." International Journal of Computer Applications 41, no. 8 (March 31, 2012): 18–25. http://dx.doi.org/10.5120/5561-7639.
Full textCheng, H., and D. Cao. "Protracted garnet growth in high-P eclogite: constraints from multiple geochronology and P-T pseudosection." Journal of Metamorphic Geology 33, no. 6 (July 6, 2015): 613–32. http://dx.doi.org/10.1111/jmg.12136.
Full textZuluaga, C. A. "The effect of zoned garnet on metapelite pseudosection topology and calculated metamorphic P-T paths." American Mineralogist 90, no. 10 (October 1, 2005): 1619–28. http://dx.doi.org/10.2138/am.2005.1741.
Full textVolkova, N. I., E. I. Mikheev, A. V. Travin, A. G. Vladimirov, A. S. Mekhonoshin, and V. V. Khlestov. "P–T CONDITIONS, U/Pb AND 40Ar/39Ar ISOTOPIC AGES OF UHT GRANULITES FROM CAPE KALTYGEI, WESTERN BAIKAL REGION." Geodynamics & Tectonophysics 12, no. 2 (June 23, 2021): 310–31. http://dx.doi.org/10.5800/gt-2021-12-2-0526.
Full textCruciani, G., M. Franceschelli, and H. J. Massonne. "Low-temperature metamorphic evolution of a pre-Variscan gabbro: a case study from the Palaeozoic basement of northwest Sardinia, Italy." Mineralogical Magazine 75, no. 6 (December 2011): 2793–812. http://dx.doi.org/10.1180/minmag.2011.075.6.2793.
Full textde Hoÿm de Marien, Luc, Pavel Pitra, Florence Cagnard, and Benjamin Le Bayon. "Prograde and retrograde P–T evolution of a Variscan high-temperature eclogite, French Massif Central, Haut-Allier." BSGF - Earth Sciences Bulletin 191 (2020): 14. http://dx.doi.org/10.1051/bsgf/2020016.
Full textNasipuri, P., A. Bhattacharya, and S. Das. "Metamorphic reactions in dry and aluminous granulites: a Perple_X P–T pseudosection analysis of the influence of effective reaction volume." Contributions to Mineralogy and Petrology 157, no. 3 (September 4, 2008): 301–11. http://dx.doi.org/10.1007/s00410-008-0335-8.
Full textTiwari, Ashish Kumar, and Tapabrato Sarkar. "P-T-t evolution of sapphirine-bearing semipelitic granulites from Vadkampatti in Eastern Madurai Domain, southern India: Insights from petrography, pseudosection modelling and in-situ monazite geochronology." Precambrian Research 348 (September 2020): 105866. http://dx.doi.org/10.1016/j.precamres.2020.105866.
Full textHolmberg, Johanna, Michał Bukała, Pauline Jeanneret, Iwona Klonowska, and Jarosław Majka. "Decompressional equilibration of the Midsund granulite from Otrøy, Western Gneiss Region, Norway." Geologica Carpathica 70, no. 6 (December 1, 2019): 471–82. http://dx.doi.org/10.2478/geoca-2019-0027.
Full textTropper, Peter, and Christoph Hauzenberger. "How well do pseudosection calculations reproduce simple experiments using natural rocks: an example from high-P high-T granulites of the Bohemian Massif." Austrian Journal of Earth Sciences 108, no. 1 (2015): 123–38. http://dx.doi.org/10.17738/ajes.2015.0008.
Full textDissertations / Theses on the topic "P–T pseudosection"
Tamblyn, R. J. "Eclogite and blueschist in the southern New England Fold Belt: P–T–t conditions and long-lived subduction on the Gondwanan eastern margin." Thesis, 2016. http://hdl.handle.net/2440/121350.
Full textEclogite and blueschist in the Tasminides represent clear evidence for subduction-related metamorphism on the Gondwanan eastern margin during the Palaeozoic. These eclogites and blueschists are located in the serpentinite-bearing Peel Manning Fault System in the Southern New England Fold Belt (SNEFB) of eastern Australia. U–Pb zircon and Lu–Hf and Sm–Nd multimineral geochronology give ages of ca. 490 Ma for lawsonite-bearing eclogite and ca. 470 Ma for garnet-bearing blueschist at Port Macquarie in the SNEFB, in agreement with Cambro-Ordovician dates for eclogite metamorphism across the eastern Gondwanan margin. In combination with this, Ar–Ar data dates exhumation and cooling in the subduction channel at ca. 460 Ma, suggesting that high-pressure metamorphism at Port Macquarie was continuously active for upwards of 40 Ma. This is supported by mineral equilibria forward modeling, which demonstrates that 24–27 kbar eclogite from Port Macquarie and Pigna Barney in the SNEFB experienced high-pressure but low-temperature retrograde paths, consistent with their residence in the subduction channel. Geochemical and isotopic results suggest that MORB as well as oceanic arc-related material was subducted and metamorphosed in a westwards dipping subduction system on the Australian cratonic margin during the ca. 515–490 Ma Delamerian Orogeny, and subsequently entrapped in the subduction channel during rollback. This rollback resulted in the development of a large backarc system on the upper plate in which the protoliths to the Lachlan Orogen accumulated, as well as on-going blueschist-facies metamorphism in the subduction channel. Ultimately, rollback led to translocation of subduction products and their exhumation over 2000 km eastwards to their current position in the New England orogen. In contrast to this, further south in Tasmania and Antarctica, the subduction of continental material led to rapid burial and exhumation of eclogite, representing differing styles of Cambro-Ordovician high-pressure metamorphism on the eastern Gondwanan margin.
Thesis (B.Sc.(Hons)) -- University of Adelaide, School of Physical Sciences, 2016
Dupavillon, P. R. "Metamorphic evolution of the western Gawler Craton." Thesis, 2015. http://hdl.handle.net/2440/118006.
Full textThe tectonothermal evolution of the western Gawler Craton, including the Fowler Domain, during Proterozoic Australia is currently poorly understood. In-situ U-Pb ages obtained in this study from the Fowler Domain yielded ages of metamorphism at c. 1732–1701 Ma attributed to the Kimban Orogeny, and at c. 1599 Ma attributed to Kararan/Hiltiba events. Quantitative phase equilibria modelling, i.e. pressure-temperature pseudosections, provide the first modern metamorphic constraints on pressure–temperature conditions for two areas within the Fowler Domain and are ~2.6–7.4 kbar and 550– 700°C for the Barton Block, and 8.2–8.7 kbar and 450– 475°C for the Nundroo Block which equate to apparent thermal gradients of approximately ~116–135°C /kbar and ~50–60 °C/kbar respectively. These thermal gradients occur within the hotter part of the ‘high T/P or Barrovian’ (Barton Block) and ‘colder than normal’ (or eclogite–high-pressure granulite, Nundroo Block) subdivisions of P–T space. This is suggestive of extension in the Barton Block and later convergence in the Nundroo Block. Kimban-aged tectonism in other parts of the Gawler Craton records thermal gradients ranging between ~150–133 °C/kbar. These differences in thermal gradients are appreciable, and in some cases different from previous studies on the Fowler Domain. The Curnamona Province (north-north eastern South Australian Craton) possesses sedimentation and thermal gradients consistent with divergence within this time period. This has prompted many scientific debates surrounding tectonic regime of the Proterozoic time line, which are yet to include any metamorphic quantitative pressure-temperature considerations. Apparent thermal gradients presented in this study are consistent with both divergence within the Kimban Orogenesis time line 1730–1690 Ma, and convergence within Kararn-/Hiltiba time line 1600–1550Ma. These processes are interpreted to record Tasmanide type tectonic regimes.
Thesis (B.Sc.(Hons)) -- University of Adelaide, School of Physical Sciences, 2015
Bhowany, K. "Eclogite; fluid assisted metamorphism; P–T pseudosections; Caledonian Orogeny; Bergen Arcs; P–T path." Thesis, 2015. http://hdl.handle.net/2440/117958.
Full textExhumed deep crust is rare and exposures that preserve both protoliths and altered domains are limited around the world. Mesoproterozoic anorthositic granulites exposed on the island of Holsnøy, western Norway, preserve different stages of progressive deformation together with the corresponding metamorphism that record the conversion to Siluro-Ordovician eclogites during fluid infiltration. Five different stages of deformation can be identified: 1) brittle deformation resulting in the formation of fractures and generation of pseudotachylites in the granulite; 2) development of mesoscale shear zones associated with increased fluid–rock interaction; 3) large-scale replacement of granulite by hydrous eclogite with blocks of granulite sitting in an eclogitic ‘matrix’; 4) complete conversion of granulite to eclogite within large-scale shear zones; and 5) break up of completely eclogitised granulite by continued fluid influx, resulting in the formation of potassium-rich mineral assemblages. P–T constraints derived from phase equilibria forward modelling document a burial and partial exhumation path with peak conditions around 21–22 kbar and 640–660 °C. Fluid infiltration began on the prograde path and continued throughout the recorded P–T evolution. However, in places limited fluid availability on the prograde path resulted in an excellent preservation of prograde mineral assemblage, allowing the burial path to be well constrained.
Thesis (B.Sc.(Hons)) -- University of Adelaide, School of Physical Sciences, 2015
Raubenheimer, Denni. "P-T estimates of peak Bushveld metamorphism in the eastern Bushveld complex, Limpopo Province, South Africa : constraints from P-T pseudosections." Diss., 2012. http://hdl.handle.net/2263/29602.
Full textDissertation (MSc)--University of Pretoria, 2012.
Geology
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Book chapters on the topic "P–T pseudosection"
Leinonen, Seppo. "P-T-XCO2 Pseudosection Modelling of Talc-Magnesite Soapstone." In Engineering Geology for Society and Territory - Volume 5, 247–52. Cham: Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-09048-1_48.
Full textFedkin, Valentin V., Theodore D. Burlick, Mary L. Leech, Andrey A. Shchipansky, Peter M. Valizer, and W. G. Ernst. "Petrotectonic origin of mafic eclogites from the Maksyutov subduction complex, south Ural Mountains, Russia." 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(09).
Full textConference papers on the topic "P–T pseudosection"
Tjapkes, Daniel J., and Virginia L. Peterson. "PRESERVED LARGE GARNET ZONING, PSEUDOSECTION THERMOBAROMETRY, AND LOCALIZED DEFORMATION CONSTRAIN P-T PATH AND EXTEND GRANULITE FACIES REGION IN THE SOUTHERN APPALACHIAN CENTRAL BLUE RIDGE, NORTH CAROLINA." In GSA Annual Meeting in Seattle, Washington, USA - 2017. Geological Society of America, 2017. http://dx.doi.org/10.1130/abs/2017am-300671.
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