Relevant bibliographies by topics / Rheomorphic ignimbrite

Academic literature on the topic 'Rheomorphic ignimbrite'

Author: Grafiati
Published: 10 December 2022
Last updated: 28 January 2023

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Journal articles on the topic "Rheomorphic ignimbrite"

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Riley, Teal R., and Philip T. Leat. "Chapter 2.2a Palmer Land and Graham Land volcanic groups (Antarctic Peninsula): volcanology." Geological Society, London, Memoirs 55, no. 1 (2021): 121–38. http://dx.doi.org/10.1144/m55-2018-36.

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AbstractThe break-up of Gondwana during the Early–Middle Jurassic was associated with flood basalt volcanism in southern Africa and Antarctica (Karoo–Ferrar provinces), and formed one of the most extensive episodes of continental magmatism of the Phanerozoic. Contemporaneous felsic magmatism along the proto-Pacific margin of Gondwana has been referred to as a silicic large igneous province, and is exposed extensively in Patagonian South America, the Antarctic Peninsula and elsewhere in West Antarctica. Jurassic-age silicic volcanism in Patagonia is defined as the Chon Aike province and forms one of the most voluminous silicic provinces globally. The Chon Aike province is predominantly pyroclastic in origin, and is characterized by crystal tuffs and ignimbrite units of rhyolite composition. Silicic volcanic rocks of the once contiguous Antarctic Peninsula form a southward extension of the Chon Aike province and are also dominated by silicic ignimbrite units, with a total thickness exceeding 1 km. The ignimbrites include high-grade rheomorphic ignimbrites, as well as unwelded, lithic-rich ignimbrites. Rhyolite lava flows, air-fall horizons, debris-flow deposits and epiclastic deposits are volumetrically minor, occurring as interbedded units within the ignimbrite succession.
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MILLWARD, D., and D. J. D. LAWRENCE. "The Stockdale (Yarlside) Rhyolite - a rheomorphic ignimbrite?" Proceedings of the Yorkshire Geological Society 45, no. 4 (December 1985): 299–306. http://dx.doi.org/10.1144/pygs.45.4.299.

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Mundula, F., R. Cioni, and M. Mulas. "Rheomorphic diapirs in densely welded ignimbrites: The Serra di Paringianu ignimbrite of Sardinia, Italy." Journal of Volcanology and Geothermal Research 258 (May 2013): 12–23. http://dx.doi.org/10.1016/j.jvolgeores.2013.03.025.

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RILEY, TEAL R., and PHILIP T. LEAT. "Large volume silicic volcanism along the proto-Pacific margin of Gondwana: lithological and stratigraphical investigations from the Antarctic Peninsula." Geological Magazine 136, no. 1 (January 1999): 1–16. http://dx.doi.org/10.1017/s0016756899002265.

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Jurassic magmatism in western Gondwana produced the most voluminous episode of continental volcanism in the Phanerozoic era. During the Early to Middle Jurassic, some 2.5–3 million km3 of dominantly basalt, and to a lesser extent rhyolite, were erupted onto a supercontinent in the early stages of break-up. The major silicic portion of the Gondwana magmatic province is exposed in Patagonian South America. The volcanic rocks of Patagonia have been collectively termed the Chon-Aike Province and constitute one of the world's most voluminous silicic provinces. The volcanic rocks are predominantly pyroclastic, dominated by ignimbrite units of rhyolite composition. Volcanic rocks crop out sporadically across much of the once contiguous Antarctic Peninsula, and are considered to form an extension of the Chon-Aike Province. A continuation of the province to include the Antarctic Peninsula would extend its strike length along the active Pacific margin by c. 2000 km.Volcanic rocks exposed along the east coast of the Antarctic Peninsula, defined here as the Mapple Formation, are also dominated by rhyolitic ignimbrite flows, with individual units up to 80 m in thickness, and a total thickness of c. 1 km. The ignimbrites vary in degree of welding, from high-grade rheomorphic ignimbrites with parataxitic textures, to unwelded, lithic-rich ignimbrites. Rhyolite lava flows, air-fall horizons, debris flow deposits and epiclastic deposits are volumetrically minor, occurring as interbedded units within the ignimbrite succession.The lithology and stratigraphy of the Jurassic volcanic rocks of the Mapple Formation are presented, and comparisons are made to the Chon-Aike Province. A consistent stratigraphy of Permo-Triassic metasedimentary rocks, unconformably overlain by terrestrial mudstone–siltstone sequences, which are in turn conformably overlain by largely silicic, subaerial volcanic rocks, is present at several localities along the Antarctic Peninsula, and at localities in the Chon-Aike Province. Precise (zircon U–Pb) Middle Jurassic ages exist for two volcanic formations from the Antarctic Peninsula, and a Middle–Lower Jurassic age has been suggested for the underlying sedimentary formations based on fossil flora analysis. The Antarctic Peninsula chronostratigraphy, coupled with lithological similarities, indicate a close relationship to those sequences of the Chon-Aike province.
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Kobberger, Gustav, and Hans-Ulrich Schmincke. "Deposition of rheomorphic ignimbrite D (Mogán Formation), Gran Canaria, Canary Islands, Spain." Bulletin of Volcanology 60, no. 6 (March 3, 1999): 465–85. http://dx.doi.org/10.1007/s004450050246.

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Leat, Philip T., and Hans-Ulrich Schmincke. "Large-scale rheomorphic shear deformation in Miocene peralkaline ignimbrite E, Gran Canaria." Bulletin of Volcanology 55, no. 3 (February 1993): 155–65. http://dx.doi.org/10.1007/bf00301513.

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Andrews, G. D. M., and M. J. Branney. "Emplacement and rheomorphic deformation of a large, lava-like rhyolitic ignimbrite: Grey's Landing, southern Idaho." Geological Society of America Bulletin 123, no. 3-4 (October 18, 2010): 725–43. http://dx.doi.org/10.1130/b30167.1.

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Pioli, Laura, and Mauro Rosi. "Rheomorphic structures in a high-grade ignimbrite: the Nuraxi tuff, Sulcis volcanic district (SW Sardinia, Italy)." Journal of Volcanology and Geothermal Research 142, no. 1-2 (April 2005): 11–28. http://dx.doi.org/10.1016/j.jvolgeores.2004.10.011.

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9

Brown, David J., and Brian R. Bell. "The emplacement of a large, chemically zoned, rheomorphic, lava-like ignimbrite: the Sgurr of Eigg Pitchstone, NW Scotland." Journal of the Geological Society 170, no. 5 (July 24, 2013): 753–67. http://dx.doi.org/10.1144/jgs2012-147.

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Branney, Michael J., B. Peter Kokelaar, and Brian J. McConnell. "The Bad Step Tuff: a lava-like rheomorphic ignimbrite in a calc-alkaline piecemeal caldera, English Lake District." Bulletin of Volcanology 54, no. 3 (February 1992): 187–99. http://dx.doi.org/10.1007/bf00278388.

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Book chapters on the topic "Rheomorphic ignimbrite"

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Andrews, Graham D. M., and Michael J. Branney. "Folds, fabrics, and kinematic criteria in rheomorphic ignimbrites of the Snake River Plain, Idaho: Insights into emplacement and flow." In GSA Field Guide 6: Interior Western United States, 311–27. Geological Society of America, 2005. http://dx.doi.org/10.1130/2005.fld006(15).

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