气候变化领域集成服务门户(CCPortal): Storm-related taphofacies and paleoenvironments of Malvinokaffric assemblages from the Lower/Middle Devonian in southwestern Gondwana

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DOI	10.1016/j.palaeo.2018.10.001
	Storm-related taphofacies and paleoenvironments of Malvinokaffric assemblages from the Lower/Middle Devonian in southwestern Gondwana
	Horodyski R.S.; Brett C.E.; Sedorko D.; Bosetti E.P.; Scheffler S.M.; Ghilardi R.P.; Iannuzzi R.
发表日期	2019
ISSN	0031-0182
起始页码	706
结束页码	722
卷号	514
英文摘要	Taphofacies of Malvinokaffric macroinvertebrate-bearing rocks from the uppermost Pragian to lower Givetian in southwestern Gondwana are evaluated. During the Lower/Middle Devonian, the Paraná Basin (southern Brazil) was positioned at high latitudes in southwestern Gondwana (60° to 80°S). Integrated litho- and taphofacies interpretations in siliciclastic environments presented here provide paleoecological and paleoenvironmental insights. The six taphofacies recognized here showed changing depositional conditions in paleoenvironments ranging from shoreface to offshore shelf settings. They vary in recurrence and abundance, but all facies exhibit evidence of storm events. Winter storms are to be expected at latitudes 60° to 80° S under cool climate zone. Storm-related taphofacies recurrence during the latest Pragian to early Givetian points to two agents of sedimentation, direct wave erosion by winter storms and sedimentary processes related to combined flow during deposition (e.g. turbidity currents and oscillatory flow). Winter storms are considered more capable of affecting sediment transport than hurricanes, due to longer duration and larger coverage area in higher latitudes. Therefore, winter storms of high latitudes should generate more persistent currents in space and time. Finally, the taphofacies, lithofacies and high-latitude paleogeographic context of the Paraná Basin suggest the action of storm-influence in the genesis of all Lower/Middle Devonian Malvinokaffric assemblages here recognized. © 2018 Elsevier B.V.
英文关键词	Macroinvertebrates; Paleoclimatology; Paleogeography; Paleozoic; Taphonomy; Winter storms
语种	英语
scopus关键词	abundance; Devonian; Givetian; Gondwana; lithofacies; macroinvertebrate; paleoclimate; paleoecology; paleoenvironment; paleogeography; Paleozoic; Pragian; sediment transport; sedimentation; siliciclastic deposit; snowstorm; storm; taphonomy; winter; Parana Basin; Pragia
来源期刊	Palaeogeography, Palaeoclimatology, Palaeoecology
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/151181
作者单位	Universidade do Vale do Rio dos Sinos, Programa de Pós-Graduação em Geologia, Av. Unisinos, 950, Cristo Rei, Caixa-postal: 275, São Leopoldo, RS 93022-000, Brazil; Department of Geology, University of Cincinnati, Cincinnati, OH 45221-0013, United States; Universidade Estadual de Ponta Grossa, Departamento de Geociências, Av. Carlos Cavalcanti 9.500, Uvaranas, Ponta Grossa, Paraná state 84010-919, Brazil; Museu Nacional - UFRJ, Departamento de Geologia e Paleontologia, Parque Quinta da Boa Vista, sem número, São Cristóvão, Rio de Janeiro, RJ 20940040, Brazil; Universidade Estadual Paulista Júlio de Mesquita Filho, Faculdade de Ciências de Bauru, Departamento de Ciências Biológicas, UNESP, Av. Eng. Luiz Edmundo Carrijo Coube, s/n, Bauru, SP 17033-360, Brazil; Universidade Federal do Rio Grande do Sul, Instituto de Geociências, Av. Bento Gonçalves 9500, Bloco I, Prédio 43113, Campus do Vale, Porto Alegre, RS 91509-900, Brazil
推荐引用方式 GB/T 7714	Horodyski R.S.,Brett C.E.,Sedorko D.,et al. Storm-related taphofacies and paleoenvironments of Malvinokaffric assemblages from the Lower/Middle Devonian in southwestern Gondwana[J],2019,514.
APA	Horodyski R.S..,Brett C.E..,Sedorko D..,Bosetti E.P..,Scheffler S.M..,...&Iannuzzi R..(2019).Storm-related taphofacies and paleoenvironments of Malvinokaffric assemblages from the Lower/Middle Devonian in southwestern Gondwana.Palaeogeography, Palaeoclimatology, Palaeoecology,514.
MLA	Horodyski R.S.,et al."Storm-related taphofacies and paleoenvironments of Malvinokaffric assemblages from the Lower/Middle Devonian in southwestern Gondwana".Palaeogeography, Palaeoclimatology, Palaeoecology 514(2019).