气候变化领域集成服务门户(CCPortal): Geophysical evidence for an igneous dike swarm, Buffalo Creek, Northeast Alberta

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DOI	10.1130/B31602.1
	Geophysical evidence for an igneous dike swarm, Buffalo Creek, Northeast Alberta
	Ardakani E.P.; Schmitt D.R.; Currie C.A.
发表日期	2018
ISSN	167606
起始页码	1059
结束页码	1072
卷号	130 期号:2021-07-08
英文摘要	Integrated processing and interpretation of high-resolution aeromagnetic and two-dimensional (2-D) seismic-reflection data in the Athabasca region, near Buffalo Creek, northeastern Alberta (368500 Easting and 6252380 Northing, North American Datum of 1927, Zone 12), reveal the existence of a set of buried southwest-northeast-striking (N59°E ± 11°) magnetic lineaments. The anomaly signature of these features on the aeromagnetic data appears to range between 5 and 20 nT in amplitude. These anomalies are recognized by narrow vertical disturbance zones on the 2-D seismic profiles. We believe these lineaments are dike-like igneous bodies and refer to them as the Buffalo Creek dike field. Forward magnetic modeling indicates the depth of the dikes to be more than 200 m, and they are intruded into Western Canadian sedimentary basin strata. The magnetic model and seismic evidence suggest that the intrusion could have been produced at any time in the interval from the Frasnian to the Aptian. The proximity of the Buffalo Creek dike field to the Birch Mountain field may suggest that they could have identical origin and be related to subduction of the Farallon plate under the west coast of the North American plate. © 2018 The Authors.
语种	英语
来源期刊	Bulletin of the Geological Society of America
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/185014
作者单位	Department of Physics, University of Alberta, Edmonton, AB T6G 2E8, Canada
推荐引用方式 GB/T 7714	Ardakani E.P.,Schmitt D.R.,Currie C.A.. Geophysical evidence for an igneous dike swarm, Buffalo Creek, Northeast Alberta[J],2018,130(2021-07-08).
APA	Ardakani E.P.,Schmitt D.R.,&Currie C.A..(2018).Geophysical evidence for an igneous dike swarm, Buffalo Creek, Northeast Alberta.Bulletin of the Geological Society of America,130(2021-07-08).
MLA	Ardakani E.P.,et al."Geophysical evidence for an igneous dike swarm, Buffalo Creek, Northeast Alberta".Bulletin of the Geological Society of America 130.2021-07-08(2018).