Published 1981 | Version v1
Miscellaneous Metadata-only

A petrochemical investigation of a group of granitoids in the Cnydas area, West of Upington

Creators

  • 1. Department of Mineral and Energy Affairs, Pretoria (South Africa). Geological Survey

Description

Detailed mapping in the eastern Namaqualand Metamorphic Complex west of Upington, indicates that the Cnydas batholith can be divided into ten different granitoidal phases. The classification is based on the intrusive field relationships supported by variation in mineralogy, texture, petrography and geochemistry. A differentiation sequence from granodiorite through mesocratic granite to leucogranite is proposed on the basis of geochemical evidence. The chemistry and petrography suggests an I-type origin for these granitoids

Additional details

Publishing Information

ISBN
0 7988 2123 X
Imprint Title
South African geodynamics symposium
Imprint Pagination
244 p.
Journal Page Range
p. 122-125.

Conference

Title
Geocongress '81.
Dates
Jun-Jul 1981.
Place
Pretoria (South Africa).

INIS

Country of Publication
South Africa
Country of Input or Organization
South Africa
INIS RN
15001074
Subject category
S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; S58: GEOSCIENCES;
Resource subtype / Literary indicator
Conference, Non-conventional Literature
Descriptors DEI
BARIUM; GEOCHEMISTRY; GEOMORPHOLOGY; GRANITES; ISOTOPE RATIO; MINERALOGY; PETROGENESIS; PETROLOGY; RUBIDIUM ISOTOPES; SOUTH AFRICA; STRONTIUM ISOTOPES
Descriptors DEC
AFRICA; ALKALINE EARTH METALS; DEVELOPED COUNTRIES; ELEMENTS; GEOLOGY; IGNEOUS ROCKS; METALS; ROCKS