The uppermost Middle and Upper Albian succession at the Col de Palluel, Hautes-Alpes, France: An integrated study (ammonites, inoceramid bivalves, planktonic foraminifera, nannofossils, geochemistry, stable oxygen and carbon isotopes, cyclostratigraphy)
The uppermost Middle and Upper Albian succession at the Col de Palluel, Hautes-Alpes, France: An integrated study (ammonites, inoceramid bivalves, planktonic foraminifera, nannofossils, geochemistry, stable oxygen and carbon isotopes, cyclostratigraphy)
复制标题
DOI：
10.1016/j.cretres.2010.10.004
复制
发表时间：
2011-04-01
影响因子：
2.1
通讯作者：
Wray, D. S.
中科院分区：
文献类型：
--
作者：
Gale, A. S.;Bown, P.;Wray, D. S.
综合研究的菊石，inoceramid双壳类，浮游有孔虫，钙质超微化石，地球化学，稳定碳同位素，和旋回地层学提供了上部中上部上阿尔比亚继承暴露在Col de Palluel节东部Rosans在上阿尔卑斯，法国。Gale等人在Mont Risou描述的Albian-Cenomanian边界间隔被重新检查，Marnes Bleues组的总厚度为370 m。基于菊石、接种介贝类、浮游有孔虫和钙质超微化石的分区方案与稳定碳同位素曲线和关键岩石地层标志物相结合，提供了中阿尔比阶最上部至森诺曼阶底部间隔的70多个事件序列。对Palluel山口和Risou剖面中500 m Albian层序的Al 2 O3含量进行时间序列分析，发现存在20 kyr的岁差、40 kyr的倾斜、100 kyr的短偏心率和406 kyr的长偏心率周期。利用浮游有孔虫和超微化石数据的相关性提供了Col de Palluel和Risou部分与Gubbio和Piobbico核心的意大利序列之间的联系。这为将Grippo等人的轨道时间尺度扩展到该序列提供了基础。它揭示了一个主要的突破，在上校德Palluel继承在顶部的独特的标志层被称为小佛得角，可能代表多达2马。这也提供了一个基础，估计的长度为4.12 Ma的阿尔必阶，0.8 Ma的早期阿尔必阶，2.84 Ma的中阿尔必阶，和3.68 Ma的晚期阿尔必阶亚阶段。(C)2010爱思唯尔有限公司版权所有。
An integrated study of the ammonites, inoceramid bivalves, planktonic foraminifera, calcareous nannofossils, geochemistry, stable carbon isotopes, and cyclostratigraphy is provided for the upper Middle to upper Upper Albian sucession exposed in the Col de Palluel section east of Rosans in Hautes-Alpes, France. The Albian-Cenomanian boundary interval described by Gale et al. at Mont Risou is re-examined, a total thickness of 370 m of the Marnes Bleues Formation. Zonal schemes based on ammonites, inoceramid bivalves, planktonic foraminifera, and calcareous nannofossils are integrated with the stable carbon isotope curve and key lithostratigraphic markers to provide a sequence of more than 70 events in the uppermost Middle Albian to basal Cenomanian interval. Time series analysis of the Al2O3 content of the 500 m Albian sequence present in the Col de Palluel and Risou sections reveals the presence of the 20 kyr precession, 40 kyr tilt, 100 kyr short eccentricity, and 406 kyr long eccentricity cycles. Correlation using planktonic foraminiferan and nannofossil data provide a link between the Col de Palluel and Risou sections and the Italian sequence at Gubbio, and in the Piobbico core. This provides a basis for the extension of the orbital time scale of Grippo et al. to the sequence. It reveals a major break in the Col de Palluel succession at the top of the distinctive marker bed known as the Petite Verde that may represent as much as 2 Ma. It also provides a basis for the estimation of the length of the Albian Stage at 4.12 Ma, 0.8 Ma for the early Albian, 2.84 Ma for the Middle Albian, and 3.68 Ma for the late Albian substages. (C) 2010 Elsevier Ltd. All rights reserved.