干旱区生态环境知识资源中心(Arid): Middle-Late Triassic evolution of the Jameson Land Basin, East Greenland

Arid

DOI	10.1017/S001675682000093X
	Middle-Late Triassic evolution of the Jameson Land Basin, East Greenland
	Andrews, Steven D.; Morton, Andrew; Decou, Audrey
通讯作者	Andrews, SD (corresponding author), Univ Highlands & Isl, Inverness, Scotland. ; Andrews, SD (corresponding author), CASP, West Bldg,Madingley Rd, Cambridge, England.
来源期刊	GEOLOGICAL MAGAZINE
ISSN	0016-7568
EISSN	1469-5081
出版年	2021
卷号	158 期号:5 页码:930-949
英文摘要	The Jameson Land Basin lies within the Greenland-Norway rift, to the south of Triassic basins on the Halten Bank and East Greenland shelf, and can therefore offer insights into the development of these less-well-documented offshore basins and the wider North Atlantic. This study focuses on the stratigraphic development of the Jameson Land Basin. Broad-scale stratigraphic logging is augmented with heavy mineral analysis that constrains the dominant source catchments during this period. A thickness of over 1.5 km of Middle-Late Triassic strata fill the Jameson Land Basin, predominantly comprising continental deposits laid down during arid to semi-arid climatic conditions. The basal Pingo Dal Group thickens westwards into the Stauning Alper Fault, forming a typical syn-rift succession. Thickness variations have also highlighted the presence of an intrabasinal high and an associated unconformity between the Pingo Dal Group and the overlying Gipsdalen Group, which provides the first direct evidence for Middle-Late Triassic rifting in East Greenland. Thickness variations in the overlying Gipsdalen Group are more subdued, and the Fleming Fjord Group, and its formations, display remarkably tabular geometries, with little evidence for significant lateral facies variance; this is suggestive of reduced topography and a more regional thermal subsidence signature. Provenance data indicate sediment sourcing from both the western and eastern basin margins during the deposition of the Pingo Dal Group, above which the western source area becomes dominant, alongside some axial input from the south.
英文关键词	Triassic North Atlantic Greenland provenance stratigraphy rifting
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000678665700010
WOS关键词	KAP-STEWART-FORMATION ; FLEMING FJORD ; STRATIGRAPHIC EVOLUTION ; LAKE DEPOSITS ; ATLANTIC RIFT ; PROVENANCE ; SANDSTONE ; FACIES ; SYSTEM ; DUNE
WOS类目	Geosciences, Multidisciplinary
WOS研究方向	Geology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/367985
作者单位	[Andrews, Steven D.; Decou, Audrey] Univ Highlands & Isl, Inverness, Scotland; [Andrews, Steven D.; Morton, Andrew] CASP, West Bldg,Madingley Rd, Cambridge, England; [Morton, Andrew] HM Res Associates Ltd, Giddanmu, St Ishmaels, England
推荐引用方式 GB/T 7714	Andrews, Steven D.,Morton, Andrew,Decou, Audrey. Middle-Late Triassic evolution of the Jameson Land Basin, East Greenland[J],2021,158(5):930-949.
APA	Andrews, Steven D.,Morton, Andrew,&Decou, Audrey.(2021).Middle-Late Triassic evolution of the Jameson Land Basin, East Greenland.GEOLOGICAL MAGAZINE,158(5),930-949.
MLA	Andrews, Steven D.,et al."Middle-Late Triassic evolution of the Jameson Land Basin, East Greenland".GEOLOGICAL MAGAZINE 158.5(2021):930-949.