Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1016/j.cretres.2015.10.016 |
North Atlantic climatic events recorded in Aptian Naskapi Member cores, Scotian Basin | |
Chavez, Isabel1; Piper, David J. W.2; Pe-Piper, Georgia1; Zhang, Yuanyuan1 | |
通讯作者 | Chavez, Isabel |
来源期刊 | CRETACEOUS RESEARCH
![]() |
ISSN | 0195-6671 |
EISSN | 1095-998X |
出版年 | 2016 |
卷号 | 60页码:297-307 |
英文摘要 | Early Aptian black laminated organic mudstones, including the Selli Level, are recognized over large areas of Tethys and western European basins. This interval was investigated in a 75 m-thick continuously cored section of varicoloured shale in the lower Naskapi Member from the Panuke B-90 well in the Scotian Basin, offshore eastern Canada. This study complements the palaeogeographic range of correlatable Selli black shales and provides information on their relationship to sea-level change and palaeoclimate. Total organic carbon (TOC) was measured on 127 discrete samples, chemical environmental proxies (Th/K, Mn/Ti, K/Ti, Th/Ti, V/Ti) were measured with a portable X-ray fluorescence (pXRF) spectrometer, and colour parameters L*a*b* were measured by spectrophotometer. Several black shale levels are recognized and correlated with similar shales in Europe between the Barremian Aptian boundary and the Selli Level. The Th/K ratio proxy for hinterland humid or arid climate conditions shows no systematic variation with black shale levels. Several sea-level lowstands are inferred from condensed sandy intervals with some brackish water biota and tidal sedimentary structures. Black shale intervals are found in highstand intervals, with no systematic relationship to inferred transgressions. The formation of black shales is related to palaeoceanographic changes that may be driven by conditions remote from the Scotian Basin. (c) 2015 Elsevier Ltd. All rights reserved. |
英文关键词 | Portable XRF Selli Level Black shales Sea level Palaeoclimate Cretaceous |
类型 | Article |
语种 | 英语 |
国家 | Canada |
收录类别 | SCI-E |
WOS记录号 | WOS:000370098900021 |
WOS关键词 | PALEOCLIMATE ; GEOCHEMISTRY ; STRATIGRAPHY ; PROVENANCE ; CARBONATES ; RESOLUTION ; LOGS |
WOS类目 | Geology ; Paleontology |
WOS研究方向 | Geology ; Paleontology |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/192183 |
作者单位 | 1.St Marys Univ, Dept Geol, Halifax, NS B3H 3C3, Canada; 2.Nat Resources Canada, Geol Survey Canada Atlantic, Bedford Inst Oceanog, POB 1006, Dartmouth, NS B2Y 4A2, Canada |
推荐引用方式 GB/T 7714 | Chavez, Isabel,Piper, David J. W.,Pe-Piper, Georgia,et al. North Atlantic climatic events recorded in Aptian Naskapi Member cores, Scotian Basin[J],2016,60:297-307. |
APA | Chavez, Isabel,Piper, David J. W.,Pe-Piper, Georgia,&Zhang, Yuanyuan.(2016).North Atlantic climatic events recorded in Aptian Naskapi Member cores, Scotian Basin.CRETACEOUS RESEARCH,60,297-307. |
MLA | Chavez, Isabel,et al."North Atlantic climatic events recorded in Aptian Naskapi Member cores, Scotian Basin".CRETACEOUS RESEARCH 60(2016):297-307. |
条目包含的文件 | 条目无相关文件。 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。