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The distribution of copper in stream sediments in an anomalous stream near Steinkopf, Namaqualand

Journal Article:

Abstract

Anomalous copper concentrations detected by the regional stream-sediment programme of the Geological Survey was investigated in a stream near Steinkopf, Namaqualand. A follow-up disclosed the presence of malachite mineralization. However, additional stream-sediment samples collected from the 'anomalous' stream revealed an erratic distribution of copper and also that the malachite mineralization had no direct effect on the copper distribution in the stream sediments. Low partial-extraction yields, together with X-ray diffraction analyses, indicated that dispersion is mainly mechanical and that the copper occurs as cations in the lattice of the biotite fraction of the stream sediments. (author). 8 refs., 5 figs., 1 tab.
Authors:
Publication Date:
Jan 01, 1987
Product Type:
Journal Article
Reference Number:
AIX-21-031073; EDB-90-055635
Resource Relation:
Journal Name: Annals of the Geological Survey; (South Africa); Journal Volume: 21
Subject:
54 ENVIRONMENTAL SCIENCES; COPPER; DISTRIBUTION; ABSORPTION SPECTROSCOPY; BIOTITE; DISPERSIONS; EXTRACTION CHROMATOGRAPHY; IRON; MINERALIZATION; RIVERS; SAMPLE PREPARATION; SAMPLING; SEDIMENTS; SOUTH AFRICA; SULFUR; X-RAY DIFFRACTION; X-RAY FLUORESCENCE ANALYSIS; ZINC; ZIRCONIUM; AFRICA; CHEMICAL ANALYSIS; CHROMATOGRAPHY; COHERENT SCATTERING; DIFFRACTION; ELEMENTS; METALS; MICA; MINERALS; NONDESTRUCTIVE ANALYSIS; NONMETALS; SCATTERING; SEPARATION PROCESSES; SILICATE MINERALS; SPECTROSCOPY; STREAMS; SURFACE WATERS; TRANSITION ELEMENTS; X-RAY EMISSION ANALYSIS; 540211* - Environment, Terrestrial- Basic Studies- Radiometric Techniques- (1990-)
OSTI ID:
7169470
Country of Origin:
South Africa
Language:
English
Other Identifying Numbers:
Journal ID: ISSN 0373-6954; CODEN: AGLOB
Submitting Site:
INIS
Size:
Pages: 21
Announcement Date:
Apr 15, 1990

Journal Article:

Citation Formats

De Bruin, D. The distribution of copper in stream sediments in an anomalous stream near Steinkopf, Namaqualand. South Africa: N. p., 1987. Web.
De Bruin, D. The distribution of copper in stream sediments in an anomalous stream near Steinkopf, Namaqualand. South Africa.
De Bruin, D. 1987. "The distribution of copper in stream sediments in an anomalous stream near Steinkopf, Namaqualand." South Africa.
@misc{etde_7169470,
title = {The distribution of copper in stream sediments in an anomalous stream near Steinkopf, Namaqualand}
author = {De Bruin, D}
abstractNote = {Anomalous copper concentrations detected by the regional stream-sediment programme of the Geological Survey was investigated in a stream near Steinkopf, Namaqualand. A follow-up disclosed the presence of malachite mineralization. However, additional stream-sediment samples collected from the 'anomalous' stream revealed an erratic distribution of copper and also that the malachite mineralization had no direct effect on the copper distribution in the stream sediments. Low partial-extraction yields, together with X-ray diffraction analyses, indicated that dispersion is mainly mechanical and that the copper occurs as cations in the lattice of the biotite fraction of the stream sediments. (author). 8 refs., 5 figs., 1 tab.}
journal = {Annals of the Geological Survey; (South Africa)}
volume = {21}
journal type = {AC}
place = {South Africa}
year = {1987}
month = {Jan}
}