Arid
DOI10.1016/j.sedgeo.2019.105539
Provenance and paleogeography of the Southern Parana Basin: Geochemistry and U-Pb zircon geochronology of the Carboniferous-Permian transition
Tedesco, Julia1; Cagliari, Joice1; Chemale Junior, Farid1; Girelli, Tiago Jonatan1; Lana, Cristiano2
通讯作者Tedesco, Julia
来源期刊SEDIMENTARY GEOLOGY
ISSN0037-0738
EISSN1879-0968
出版年2019
卷号393
英文摘要The Carboniferous-Permian transition of the intracratonic Parana Basin (S Brazil) includes important evidence of the climate change, tectonics, and paleogeographic configuration of SW Gondwana. During this period, the Late Paleozoic Ice Age (LPIA) was in its final phase in the Parana Basin, producing a temperate-tropical climate through the transition to the Permian. U-Pb laser ablation ICP-MS detrital zircon dates and whole-rock geochemistry of rocks from the upper Itarare Group (Carboniferous) and the lowermost Rio Bonito Formation (Early Permian) in the southern Parana Basin are determined to characterize the sedimentary-dispersal patterns of the source area and glacial paleoflow. Geochemistry proxies suggest that the studied units experienced different degrees of weathering, with the Itarare Group's units forming in an arid environment. The overlying Rio Bonito Formation's units were deposited under hotter and more humid climate conditions. The Late Carboniferous to Early Permian units showed similar zircon-age distribution patterns, with a Neoproterozoic main peak from the Uruguayan Sul-Riograndese Shield. A lack of Mesoproterozoic sources in the studied samples indicates that this area of the Parana Basin probably did not receive sediments from the African side during the Late Carboniferous as previously described. This result suggests a more complex system in which ice caps and small ice sheets dominated the glacial environment during the Late Carboniferous in this segment of SW Gondwana. (C) 2019 Elsevier B.V. All rights reserved.
英文关键词Zircon U-Pb dating Itarare Group Rio Bonito Formation Late Paleozoic Ice Age
类型Article
语种英语
国家Brazil
收录类别SCI-E
WOS记录号WOS:000501938900004
WOS关键词DOM FELICIANO BELT ; LATE PALEOZOIC GLACIATION ; LA-PLATA CRATON ; RARE-EARTH-ELEMENT ; DETRITAL ZIRCON ; TECTONIC EVOLUTION ; CRUSTAL EVOLUTION ; ITARARE GROUP ; LEVEL CHANGES ; GONDWANA
WOS类目Geology
WOS研究方向Geology
EI主题词2019-12-01
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/311342
作者单位1.Univ Vale Rio dos Sinos, Programa Posgrad Geol, Ave UNISINOS 950, BR-93022000 Sao Leopoldo, RS, Brazil;
2.Univ Fed Ouro Preto, Dept Geol, BR-35400000 Ouro Preto, MG, Brazil
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GB/T 7714
Tedesco, Julia,Cagliari, Joice,Chemale Junior, Farid,et al. Provenance and paleogeography of the Southern Parana Basin: Geochemistry and U-Pb zircon geochronology of the Carboniferous-Permian transition[J],2019,393.
APA Tedesco, Julia,Cagliari, Joice,Chemale Junior, Farid,Girelli, Tiago Jonatan,&Lana, Cristiano.(2019).Provenance and paleogeography of the Southern Parana Basin: Geochemistry and U-Pb zircon geochronology of the Carboniferous-Permian transition.SEDIMENTARY GEOLOGY,393.
MLA Tedesco, Julia,et al."Provenance and paleogeography of the Southern Parana Basin: Geochemistry and U-Pb zircon geochronology of the Carboniferous-Permian transition".SEDIMENTARY GEOLOGY 393(2019).
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