气候变化领域集成服务门户(CCPortal): Variations of the trace fossil Zoophycos with respect to paleoenvironment and sequence stratigraphy in the Mississippian Mobarak Formation; northern Iran

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DOI	10.1016/j.palaeo.2020.109754
	Variations of the trace fossil Zoophycos with respect to paleoenvironment and sequence stratigraphy in the Mississippian Mobarak Formation; northern Iran
	Bayet-Goll A.; Daraei M.; Taher S.P.M.; Etemad-Saeed N.; de Carvalho C.N.; Zandkarimi K.; Monaco P.; Zohdi A.; Rabbani J.; Nasiri Y.
发表日期	2020
ISSN	0031-0182
卷号	551
英文摘要	Zoophycos in the Mississippian Mobarak Formation (Central Alborz, Iran) shows its potential in interpreting depositional settings, ecological features and sequence stratigraphy. Zoophycos A (ZoA), Zoophycos B (ZoB), Zoophycos/Phycosiphon (Zo/Phy) and Phycosiphon (Phy) ichnocoenoses are identified in the middle and outer ramp facies of the Mobarak Formation on the basis of shape, ichnodensity, ichnocomplexity degree and size of Zoophycos and other trace fossils. Zoophycos portrays a proximal-to-distal trend in the storm-dominated ramp sequence. In deeper parts of the ramp with long-term stable conditions and organic enrichment, Zoophycos producers selected equilibrium strategies (K-selected), whereas into the shallower parts they opted for opportunistic behavior (r-selected) due to short-term stable conditions with low food flux. The feeding behavior proposed in this study is based on general morphology as well as mode of sediment exploiting, and includes deposit feeding and the caching model. Moreover, this study confirms that the distribution pattern of the Paleozoic Zoophycos producers within a sequence stratigraphic framework that was totally different from that of the Mesozoic and Cenozoic. During the late transgressive systems tract (TST) and early highstand systems tract (HST), the excess of benthic food and the environmental stability, together with the prevalence of dysaerobic conditions, caused intense burrowing by the Zoophycos producer in proximal outer ramp to distal middle ramp. Its ethology, paleoecologic strategies and taphonomic signatures suggest that erosionally-exhumed, dewatered muddy beds (firmground) were not able to provide appropriate conditions for deposit-feeding Zoophycos producers as a consequence of their lower environmental stability. Therefore, Zoophycos as a standard component of the resident fair-weather community cannot be a good representative of the distal expression of the Glossifungites ichnofacies. © 2020 Elsevier B.V.
英文关键词	Equilibrium strategies; Ethology; Feeding behavior; Mississippian; Northern Iran; Paleoecologic strategies; Zoophycos
语种	英语
scopus关键词	biostratigraphy; deposit feeding; facies analysis; feeding behavior; ichnofacies; Mesozoic; Mississippian; paleoenvironment; Paleozoic; sequence stratigraphy; systems tract; trace fossil; Alborz; Iran; Zoophycos
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/150475
作者单位	Department of Earth Sciences, Institute for Advanced Studies in Basic Sciences (IASBS), Zanjan, Iran; Geological Survey of Idanha-a-Nova, Geopark Naturtejo Meseta Meridional, UNESCO Global Geopark, Avenida Joaquim Morão, Idanha-a-Nova, 6060-101, Portugal; Instituto Dom Luiz, Faculdade de Cièncias da Universidade de Lisboa, Lisbon, 1749-016, Portugal; Memorial University of Newfoundland, Canada; Dipartimento di Fisica e Geologia, Università degli Studi di Perugia, via Pascoli, Perugia, I-06123, Italy; Department of Geology, Faculty of Science, University of Zanjan, Zanjan, Iran; Department of Geology, Faculty of Science, University of Gonabad, Iran
推荐引用方式 GB/T 7714	Bayet-Goll A.,Daraei M.,Taher S.P.M.,et al. Variations of the trace fossil Zoophycos with respect to paleoenvironment and sequence stratigraphy in the Mississippian Mobarak Formation; northern Iran[J],2020,551.
APA	Bayet-Goll A..,Daraei M..,Taher S.P.M..,Etemad-Saeed N..,de Carvalho C.N..,...&Nasiri Y..(2020).Variations of the trace fossil Zoophycos with respect to paleoenvironment and sequence stratigraphy in the Mississippian Mobarak Formation; northern Iran.Palaeogeography, Palaeoclimatology, Palaeoecology,551.
MLA	Bayet-Goll A.,et al."Variations of the trace fossil Zoophycos with respect to paleoenvironment and sequence stratigraphy in the Mississippian Mobarak Formation; northern Iran".Palaeogeography, Palaeoclimatology, Palaeoecology 551(2020).