Arid
DOI10.1016/j.palaeo.2012.09.014
Community replacement of neritic carbonate organisms during the late Valanginian platform demise: A new record from the Provence Platform
Bonin, Aurelie1; Vennin, Emmanuelle1; Puceat, Emmanuelle1; Guiraud, Michel1; Arnaud-Vanneau, Annie2; Adatte, Thierry3; Pittet, Bernard4; Mattioli, Emanuela4
通讯作者Bonin, Aurelie
来源期刊PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
ISSN0031-0182
EISSN1872-616X
出版年2012
卷号365页码:57-80
英文摘要

The Valanginian is marked by a major platform demise inducing a hiatus in the northern Tethyan neritic carbonate record from the top of the lower Valanginian to the lower Hauterivian. New biostratigraphic and chemostratigraphic data from the Ollioules section (Provence Platform, southern France) are presented here, demonstrating that a large part of the upper Valanginian is preserved in an inner platform environment. The thick, upper Valanginian, aggrading carbonate succession is observed in an aborted rift domain, implying relatively low subsidence. In this context, a relatively long-term sea-level rise was required to sustain a keep-up style of carbonate production. Like the Apulian Platform, the remarkable preservation of the Provence Platform may have been favored by its remoteness from terrigenous source areas, as suggested by the low clastic inputs and low P-accumulation rates. Two main biotic community replacements are observed in Ollioules. The first saw the development of abundant microbialites and algae at the onset of the late Valanginian. A Tubiphytes concentration occurred during the coolest climatic conditions and the transition towards arid conditions, whereas the subsequent Lithocodium-Bacinella and orbitolinids assemblages developed under low nutrient conditions during a warmer interval. Both assemblages may have been triggered by increased alkalinity. The second community replacement saw the installation of coral- and rudist-dominated communities during the latest Valanginian to early Hauterivian. They indicate a change to oligotrophic, open marine conditions. Six medium-scale sequences have been defined in Ollioules, indicating short-term transgressive-regressive trends superimposed on a long-term transgression. Low nutrient inputs and relatively low subsidence in an aggradational context may explain the survival of the isolated Provence Carbonate Platform during a time of widespread drowning episodes and platform demise in the northern Tethyan domain. (c) 2012 Elsevier B.V. All rights reserved.


英文关键词Ollioules section Valanginian Platform demise Neritic communities Carbon isotope Phosphorus
类型Article
语种英语
国家France ; Switzerland
收录类别SCI-E
WOS记录号WOS:000312183500005
WOS关键词CORAL-MICROBIALITE REEFS ; ISOTOPE STRATIGRAPHY ; DEPOSITIONAL SEQUENCES ; VOCONTIAN BASIN ; POLAR ICE ; EVOLUTION ; SYSTEMS ; FRANCE ; OBLIQUE ; MARGIN
WOS类目Geography, Physical ; Geosciences, Multidisciplinary ; Paleontology
WOS研究方向Physical Geography ; Geology ; Paleontology
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/174324
作者单位1.Univ Bourgogne, UMR CNRS 6282, F-21000 Dijon, France;
2.Lab Geodynam Chaines Alpines, F-38400 St Martin Dhyeres, France;
3.Univ Lausanne, Inst Geol & Palaeontol, UNIL Dorigny, CH-1015 Lausanne, Switzerland;
4.Univ Lyon 1, Ecole Normale Super Lyon, UMR CNRS LGL TPE 5276, F-69622 Villeurbanne, France
推荐引用方式
GB/T 7714
Bonin, Aurelie,Vennin, Emmanuelle,Puceat, Emmanuelle,et al. Community replacement of neritic carbonate organisms during the late Valanginian platform demise: A new record from the Provence Platform[J],2012,365:57-80.
APA Bonin, Aurelie.,Vennin, Emmanuelle.,Puceat, Emmanuelle.,Guiraud, Michel.,Arnaud-Vanneau, Annie.,...&Mattioli, Emanuela.(2012).Community replacement of neritic carbonate organisms during the late Valanginian platform demise: A new record from the Provence Platform.PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,365,57-80.
MLA Bonin, Aurelie,et al."Community replacement of neritic carbonate organisms during the late Valanginian platform demise: A new record from the Provence Platform".PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY 365(2012):57-80.
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