globalchange  > 影响、适应和脆弱性
DOI: 10.1007/s00531-012-0802-3
论文题名:
Palaeoecology of well-preserved coral communities in a siliciclastic environment from the Late Pleistocene (MIS 7), Kish Island, Persian Gulf (Iran): The development of low-relief reef frameworks (biostromes) in increasingly restricted environments
作者: Mossadegh Z.K.; Parker J.; Gischler E.; Oschmann W.; Blakeway D.; Eisenhauer A.
刊名: International Journal of Earth Sciences
出版年: 2013
卷: 102, 期:2
起始页码: 545
结束页码: 570
语种: 英语
英文关键词: Biostrome ; Bivalves ; Coral reef ; Late Pleistocene ; Marine isotope stage 7 ; Persian Gulf
Scopus关键词: biostrome ; bivalve ; coral reef ; depositional environment ; disequilibrium ; environmental conditions ; outcrop ; paleoecology ; paleoenvironment ; Pleistocene ; Arabian Sea ; Hormozgan ; Indian Ocean ; Iran ; Kish Island ; Persian Gulf ; Acropora ; Anthozoa ; Bivalvia ; Cyphastrea ; Faviidae ; Mollusca ; Montipora ; Platygyra ; Platygyra daedalea
英文摘要: Major changes in community structure and depositional relief of high-latitude coral communities in the southern Persian Gulf between marine isotope stage (MIS) 7 and the present day suggest that the area has become increasingly restricted. Corals and bivalves from outcrops on Kish Island, Iran, were identified in order to interpret the Late Pleistocene palaeoenvironmental setting. U/Th disequilibrium dating was used to constrain the ages of the stratigraphic units. During MIS 7, two coral-bearing sequences were deposited on what is now Kish Island. The lower sequence is dated as MIS 7. 5 and changes laterally from an assemblage dominated by Cyphastrea sp. and Platygyra daedalea in the west to one characterized by branching Montipora in the east. By contrast, the upper sequence, dated as MIS 7. 1, transitions from an assemblage dominated by platy Montipora in the west to a diverse assemblage of Platygyra and other faviids in the east. The assemblages of both sequences are within a marl matrix and bounded by thin lithified mollusc-rich layers. Corals and bivalves indicate that the sequences were deposited on gentle slopes in sheltered environments less than 20 m deep. The MIS 7 deposits may be classified as coral carpets or biostromes that developed a low-relief framework. During MIS 5, coral communities were no longer framework building and are now limited to an Acropora-rich layer of coral rubble that covers large parts of the island, and two small incipient reefs with sparse faviids. Similarities between the MIS 5 and modern nearshore coral communities suggest that the environmental conditions during MIS 5 were comparable to those of today. The late Pleistocene coral carpets and non-framework coral communities of the southern Persian Gulf may serve as models for coral biostromes in the fossil record, which formed under restricted environmental conditions such as elevated terrigenous input, high turbidity, and strong seasonal changes in temperature and/or salinity. © 2012 Springer-Verlag.
URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84874019263&doi=10.1007%2fs00531-012-0802-3&partnerID=40&md5=d22430ebdf43ac969a8bb3ae14a3f58b
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/70600
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: Biodiversity and Climate Research Centre, Senckenberganlage 25, 60325 Frankfurt am Main, Germany; Institut für Geowissenschaften, Goethe Universität, Altenhoeferallee 1, 60438 Frankfurt am Main, Germany; Fathom 5 Marine Research, 17 Staines Street, Lathlain, WA, 6100, Australia; Geomar, Helmholtz-Zentrum für Ozeanforschung, Wischhofstrasse 1-3, 24148 Kiel, Germany; School of Earth and Environmental Sciences, M004, University of Western Australia, 35 Stirling Hwy., Crawley, Perth, WA, 6009, Australia

Recommended Citation:
Mossadegh Z.K.,Parker J.,Gischler E.,et al. Palaeoecology of well-preserved coral communities in a siliciclastic environment from the Late Pleistocene (MIS 7), Kish Island, Persian Gulf (Iran): The development of low-relief reef frameworks (biostromes) in increasingly restricted environments[J]. International Journal of Earth Sciences,2013-01-01,102(2)
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