DOI: 10.1016/j.palaeo.2013.05.020
论文题名: Devonian rugose coral 'Amplexus' and its relation to submarine fluid seepage
作者: Jakubowicz M. ; Berkowski B. ; Belka Z.
刊名: Palaeogeography, Palaeoclimatology, Palaeoecology
ISSN: 0031-0182
出版年: 2013
卷: 386 起始页码: 180
结束页码: 193
语种: 英语
英文关键词: Cold seeps
; Deep-water corals
; Devonian
; Hydrothermal vents
; Morocco
; Rugosa
英文摘要: The rugose coral '. Amplexus' occurs frequently in the sedimentary cover of the Devonian submarine volcanic intrusion in the eastern Anti-Atlas, southern Morocco. This study elucidates the palaeoecology of '. Amplexus', which forms very rich and mostly monospecific, spot assemblages within the Lower and Middle Devonian carbonates. Geological and isotopic evidences show that these associations developed at hydrothermal vents and at a cold seep site. The assemblages are always spatially associated with micritic carbonate bodies, occurring within bedded, hemipelagic deposits. The '. Amplexus' corals preferred locations in the close proximity of submarine hydrothermal fluid seepage, but they generally avoided places with the most elevated temperatures. The corals colonised also a hydrocarbon seep, probably only in its terminal phase of development, when the fluid flow was still at least periodically active. This was only possible as a result of the corals following a calice-in-calice growth, developed due to the environmental toxicity, which facilitated selective survival of larvae that settled in the shelter of empty calices. The '. Amplexus' corals appear to have constituted ecological opportunists, thriving in the nutrient-rich, venting- and seepage-affected areas that were hostile for other benthic organisms. It can be suspected that the unusual, extremely simplified morphology of '. Amplexus' made it particularly well adapted to living in environments typified by harsh and unstable conditions. © 2013 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/69676
Appears in Collections: 过去全球变化的重建
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作者单位: Institute of Geoecology and Geoinformation, Adam Mickiewicz University, ul. Dziegielowa 27, 61-680 Poznań, Poland; Institute of Geology, Adam Mickiewicz University, ul. Maków Polnych 16, 61-606 Poznań, Poland; Isotope Laboratory, Adam Mickiewicz University, Ul. Dziegielowa 27, 61-680 Poznań, Poland
Recommended Citation:
Jakubowicz M.,Berkowski B.,Belka Z.. Devonian rugose coral 'Amplexus' and its relation to submarine fluid seepage[J]. Palaeogeography, Palaeoclimatology, Palaeoecology,2013-01-01,386