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Late Precambrian tidal rhythmites in South Australia and the history of the Earth's rotation
G. E. Williams
Late Precambrian tidal rhythmites in South Australia and the history of the Earth's rotation
Journal of the Geological Society of London (January 1989) 146 (1): 97-111
Late Precambrian tidal rhythmites in South Australia and the history of the Earth's rotation
Journal of the Geological Society of London (January 1989) 146 (1): 97-111
Index Terms/Descriptors
Latitude & Longitude
Abstract
Data from Precambrian sedimentary rhythmites in siltstone and fine sandstone, interpreted as distal ebb-tidal deposits, allow determination of the Earth's palaeorotation and past dynamics of the Earth-Moon system with an accuracy previously unattainable for the Precambrian. The late Precambrian (approx 650 m.y.) year contained 13.1 (+-0.5) lunar months and approx 400 (+-20) days, the late Precambrian lunar month approx 30.5 (+-1.5) days. A lunar distance 96.9 (+-1.7)% of the present distance is indicated.
ISSN: 0016-7649
EISSN: 2041-479X
Coden: JGSLAS
Serial Title: Journal of the Geological Society of London
Serial Volume: 146
Serial Issue: 1
Title: Late Precambrian tidal rhythmites in South Australia and the history of the Earth's rotation
Author(s): Williams, G. E.
Affiliation: Univ. Adelaide, Dep. Geol. and Geophys.,
Adelaide, South Aust.,
Australia
Pages: 97-111
Published: 198901
Text Language: English
Publisher: Geological Society of London,
London,
United Kingdom
References: 45
Accession Number: 1989-062426
Categories: Sedimentary petrologySolid-earth geophysics
Document Type: Serial
Bibliographic Level: Analytic
Illustration Description: illus. incl. 2 tables, sketch map
S38°00'00" - S26°00'00", E129°00'00" - E141°00'00"
Country of Publication: United Kingdom
Secondary Affiliation: GeoRef, Copyright 2019, American Geosciences Institute. Reference includes data from Mineralogical Abstracts, United Kingdom, Twickenham, United Kingdom
Update Code: 1989
