globalchange  > 影响、适应和脆弱性
DOI: 10.1007/s00531-013-0954-9
Scopus记录号: 2-s2.0-84893786482
论文题名:
Remarks on sequence stratigraphy and taphonomy of the Malvinokaffric shelly fauna during the KAČÁK Event in the Apucarana Sub-basin (Paraná Basin), Brazil
作者: Horodyski R.S.; Holz M.; Grahn Y.; Bosetti E.P.
刊名: International Journal of Earth Sciences
ISSN: 14373254
出版年: 2014
卷: 103, 期:1
起始页码: 367
结束页码: 380
语种: 英语
英文关键词: Apucarana Sub-basin ; Devonian ; Paraná basin ; Sequence stratigraphy ; Taphonomy
Scopus关键词: autochthon ; benthos ; depositional sequence ; Devonian ; fauna ; fossil assemblage ; paleoenvironment ; sequence boundary ; sequence stratigraphy ; systems tract ; taphonomy ; transgression ; Apucarana Basin ; Brazil ; Parana [Brazil] ; Lingulida
英文摘要: The Eifelian-Givetian (Middle Devonian) transition constituted an important paleoenvironmental event for the Malvinokaffric Realm in the Apucarana Sub-basin (Paraná Basin). This study highlights integration between taphonomy and sequence stratigraphy, and four depositional sequences are identified during the transition. In Sequence 1, the presence of a typical normal-sized Malvinokaffric fauna is recorded. In the transgressive systems tract (TST) of Sequence 2, no benthic fossils are present, and this is interpreted as a stratigraphic marker of an event of significant paleoenvironmental change (KAČÁK Event). In Sequence 3, the TST has abundant bioclasts, which become rarer toward the top of the section, i.e., within the transgressive systems tract. The original habitat of this autochthonous to parautochthonous fauna was a low-energy environment between the fair weather wave base and the storm wave base of the Devonian epicontinental sea. In the highstand systems tract of this sequence, the presence of normal-sized Pennaia paulianna and lingulids demonstrates the return of more ambient conditions. Sequence 4 is of Carboniferous age. Its limit is a second-order sequence boundary recording a lowstand systems tract formed by a fluvial depositional system. The low diversity and the disappearance of taxa are not the result of a taphonomic bias, but reflect the post-KAČÁK Event. © 2013 Springer-Verlag Berlin Heidelberg.
URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84893786482&doi=10.1007%2fs00531-013-0954-9&partnerID=40&md5=f9ad4f5552f1cb9ef6e2f27633e27587
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/70366
Appears in Collections:影响、适应和脆弱性
气候减缓与适应

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作者单位: Programa de Pós-graduação em Geociências, Universidade Federal do Rio Grande do Sul, Av. Bento Goncalves 9500, Bloco I, Predio 43113, Campus do, 91509-900 Porto Alegre, RS, Brazil; Instituto de Geociências, Universidade Federal da Bahia, Av. Barão de Jeremoabo, Ondina, 40170-115 Salvador, BA, Brazil; Universidade do Estado do Rio de Janeiro, Bloco A, Sala 4001, Rua São Francisco Xavier 524, 20550-013 Rio de Janeiro, RJ, Brazil; Departamento de Geociências, Universidade Estadual de Ponta Grossa, UEPG, Av. Carlos Cavalcanti 9.500, Uvaranas, 84010-919 Ponta Grossa, PR, Brazil

Recommended Citation:
Horodyski R.S.,Holz M.,Grahn Y.,et al. Remarks on sequence stratigraphy and taphonomy of the Malvinokaffric shelly fauna during the KAČÁK Event in the Apucarana Sub-basin (Paraná Basin), Brazil[J]. International Journal of Earth Sciences,2014-01-01,103(1)
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