气候变化领域集成服务门户(CCPortal): Early dolomitization and partial burial recrystallization: a case study of Middle Triassic peritidal dolomites in the Villány Hills (SW Hungary) using petrography; carbon; oxygen; strontium and clumped isotope data

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DOI	10.1007/s00531-020-01851-7
	Early dolomitization and partial burial recrystallization: a case study of Middle Triassic peritidal dolomites in the Villány Hills (SW Hungary) using petrography; carbon; oxygen; strontium and clumped isotope data
	Lukoczki G.; Haas J.; Gregg J.M.; Machel H.G.; Kele S.; John C.M.
发表日期	2020
ISSN	14373254
起始页码	1051
结束页码	1070
卷号	109 期号:3
英文摘要	Peritidal carbonates of the Csukma Formation (Csukma Dolomite Member) in the Villány Hills, SW Hungary, were investigated to determine the nature of the dolomitization and recrystallization processes that affected these rocks during their complex tectonic evolution, and to evaluate if clumped isotope data preserved signals from the original dolomitization event or are indicative of the later recrystallization processes. Sedimentary and petrographic features, as well as geochemical characteristics integrated with the tectonic evolution of the area indicate that dolomitization likely occurred penecontemporaneously via geothermal convection of normal-to-slightly modified seawater in a near-surface to shallow burial setting. This was followed by partial recrystallization of the dolomites in an intermediate burial setting with low water-to-rock ratios. Results of this study suggest that the clumped isotope temperatures of dolomites, partially recrystallized via dissolution–re-precipitation, may provide a minimum estimate of the temperature of recrystallization. However, caution has to be taken when interpreting the thermal history and fluid evolution of successions that were affected by significant recrystallization, because the clumped isotope temperatures and the calculated fluid compositions might inaccurately represent the diagenetic conditions. © 2020, Geologische Vereinigung e.V. (GV).
英文关键词	Clumped isotopes; Dolomitization; Recrystallization; Stable isotopes; Strontium isotopes; Villány Hills
语种	英语
scopus关键词	depositional environment; dolomite; dolomitization; isotopic composition; oxygen; paleoenvironment; petrogenesis; petrography; petrology; strontium; Triassic; Hungary
来源期刊	International Journal of Earth Sciences
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/147692
作者单位	Boone Pickens School of Geology, Oklahoma State University, 105 Noble Research Center, Stillwater, OK 74078, United States; Kentucky Geological Survey, University of Kentucky, Mining and Mineral Resources Building, Lexington, KY 40506, United States; Eötvös Loránd University, Pázmány Péter sétány 1/c, Budapest, 1117, Hungary; Department of Earth and Atmospheric Sciences, University of Alberta, Edmonton, AB T6G 2E3, Canada; Research Centre for Astronomy and Earth Sciences, Institute for Geological and Geochemical Research, Hungarian Academy of Sciences, Budaörsi út 45, Budapest, 1112, Hungary; Department of Earth Science and Engineering, Imperial College London, Prince Consort Rd, London, SW7 2BP, United Kingdom
推荐引用方式 GB/T 7714	Lukoczki G.,Haas J.,Gregg J.M.,et al. Early dolomitization and partial burial recrystallization: a case study of Middle Triassic peritidal dolomites in the Villány Hills (SW Hungary) using petrography; carbon; oxygen; strontium and clumped isotope data[J],2020,109(3).
APA	Lukoczki G.,Haas J.,Gregg J.M.,Machel H.G.,Kele S.,&John C.M..(2020).Early dolomitization and partial burial recrystallization: a case study of Middle Triassic peritidal dolomites in the Villány Hills (SW Hungary) using petrography; carbon; oxygen; strontium and clumped isotope data.International Journal of Earth Sciences,109(3).
MLA	Lukoczki G.,et al."Early dolomitization and partial burial recrystallization: a case study of Middle Triassic peritidal dolomites in the Villány Hills (SW Hungary) using petrography; carbon; oxygen; strontium and clumped isotope data".International Journal of Earth Sciences 109.3(2020).