Palaeocurrent determinations by magnetic fabric measurements on the Cambrian Rocks of St. Tudwal's Peninsula, North Wales
作者:
T. P. Crimes,
M. A. Oldershaw,
期刊:
Geological Journal
(WILEY Available online 1967)
卷期:
Volume 5,
issue 2
页码: 217-232
ISSN:0072-1050
年代: 1967
DOI:10.1002/gj.3350050201
出版商: John Wiley&Sons Ltd
数据来源: WILEY
摘要:
AbstractThe relationship between depositional grain orientation and current direction is discussed, and a method to assist in distinguishing between depositional and deformational magnetic fabrics is suggested. Magnetic fabric measurements from Middle and Upper Cambrian strata at St. Tudwal's Peninsula are presented. In the Maentwrog Beds (Upper Cambrian) a correspondence is found between the trend of the maximum magnetic susceptibility axes and the trend of the palaeocurrent as deduced from sole markings. In the Caered Mudstones and Flags (Middle Cambrian) the directions of maximum magnetic susceptibility are used to indicate palaeocurrent trends.
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