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GEOREF RECORD

Variations in sub-tropical deep weathering profiles over the Kowloon Granite, Hong Kong

R. Shaw
Variations in sub-tropical deep weathering profiles over the Kowloon Granite, Hong Kong (in The geology of Hong Kong, C. J. N. Fletcher (editor))
Journal of the Geological Society of London (November 1997) 154, Part 6: 1077-1085

Abstract

There is a strong correlation between topography of the weathered profile base and the main structural trends in this granite. Linear zones of deep weathering have been preferentially eroded to create valleys, which subsequently became sites of alluvial and colluvial accumulation. Variations in weathering patterns are primarily a function of the geometry and infilling of relict jointing, which together determine local hydrogeology and hence intensity of weathering. Magnetic susceptibility is a reliable indicator of material weathering grade in the Kowloon granite. Corestones are generally restricted to weathered profiles over topographically high areas. Commonly, deeply weathered granite without corestones passes abruptly into relatively fresh rock; this has important implications for engineering models derived from borehole interpretation.


ISSN: 0016-7649
EISSN: 2041-479X
Coden: JGSLAS
Serial Title: Journal of the Geological Society of London
Serial Volume: 154, Part 6
Title: Variations in sub-tropical deep weathering profiles over the Kowloon Granite, Hong Kong
Title: The geology of Hong Kong
Author(s): Shaw, R.
Author(s): Fletcher, C. J. N.editor
Affiliation: Hong Kong Geological Survey, Geotechnical Engineering Office, Hong Kong, China
Pages: 1077-1085
Published: 199711
Text Language: English
Publisher: Geological Society of London, London, United Kingdom
Meeting name: Geology of Hong Kong
Meeting location: Hong Kong, CHN, China
Meeting date: 19970122Jan. 22, 1997
References: 42
Accession Number: 1998-012761
Categories: Geomorphology
Document Type: Serial Conference document
Bibliographic Level: Analytic
Illustration Description: illus. incl. 1 table, sketch maps
N22°04'60" - N22°34'60", E113°49'60" - E114°30'00"
Country of Publication: United Kingdom
Secondary Affiliation: GeoRef, Copyright 2018, American Geosciences Institute. Reference includes data from Mineralogical Abstracts, United Kingdom, Twickenham, United Kingdom
Update Code: 199805
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