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GEOREF RECORD
Palaeogeomorphology and the occurrence of diamondiferous placer deposits in Koidu, Sierra Leone
M. F. Thomas, M. B. Thorp and R. M. Teeuw
Palaeogeomorphology and the occurrence of diamondiferous placer deposits in Koidu, Sierra Leone (in Placer deposits, Ian Reid (prefacer) and Donald G. Sutherland (prefacer))
Journal of the Geological Society of London (September 1985) 142, Part 5: 789-802
Palaeogeomorphology and the occurrence of diamondiferous placer deposits in Koidu, Sierra Leone (in Placer deposits, Ian Reid (prefacer) and Donald G. Sutherland (prefacer))
Journal of the Geological Society of London (September 1985) 142, Part 5: 789-802
Index Terms/Descriptors
- absolute age
- Africa
- alluvium
- C-14
- carbon
- Cenozoic
- channels
- clastic sediments
- depositional environment
- diamond deposits
- drainage basins
- erosion
- facies
- fluvial environment
- geomorphology
- granulometry
- gravel
- heavy mineral deposits
- humid environment
- igneous rocks
- intrusions
- isotopes
- kimberlite
- laterites
- mineral deposits, genesis
- mineral exploration
- models
- paleoenvironment
- paleogeography
- piedmonts
- placers
- provenance
- Quaternary
- radioactive isotopes
- relief
- sediment transport
- sedimentation
- sediments
- Sierra Leone
- soils
- stratigraphic units
- terraces
- terrestrial environment
- topography
- tropical environment
- ultramafic composition
- valleys
- weathering
- West Africa
- stone lines
- Koidu Sierra Leone
Latitude & Longitude
Abstract
The geomorphology and diamond distribution within the Koidu alluvial diamond field in Sierra Leone is explained in terms of a late Quaternary stratigraphic framework involving interfluvial domains with remnant river terraces, and colluvial stoneline deposits interspersed with non-alluvial erosional slopes.
ISSN: 0016-7649
EISSN: 2041-479X
Coden: JGSLAS
Serial Title: Journal of the Geological Society of London
Serial Volume: 142, Part 5
Title: Palaeogeomorphology and the occurrence of diamondiferous placer deposits in Koidu, Sierra Leone
Title: Placer deposits
Author(s): Thomas, M. F.Thorp, M. B.Teeuw, R. M.
Author(s): Reid, Ianprefacer
Author(s): Sutherland, Donald G.prefacer
Affiliation: University of Stirling, Department of Environmental Science,
Stirling,
United Kingdom
Affiliation: Placer Analysis,
Edinburgh,
United Kingdom
Pages: 789-802
Published: 198509
Text Language: English
Publisher: Geological Society of London,
London,
United Kingdom
Meeting name: Placer deposits
Meeting location: London,
GBR,
United Kingdom
Meeting date: 19841115Nov. 15, 1984
References: 27
Accession Number: 2003-045137
Categories: Economic geology, geology of nonmetal depositsQuaternary geology
Document Type: Serial Conference document
Bibliographic Level: Analytic
Illustration Description: illus. incl. 3 tables, geol. sketch maps
N08°19'60" - N09°19'60", W12°00'00" - W10°30'00"
Secondary Affiliation: Birkbeck College,
GBR,
United KingdomUniversity College,
IRL,
Ireland
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: 200314
