Published December 1976 | Version v1
Journal article Metadata-only

Variation in composition and delta18O values within the Kaffo albite-riebeckite granite of Liruei complex, younger granites of Nigeria

Creators

  • 1. Imperial Coll. of Science and Technology, London (UK)
  • 2. Institute of Geological Sciences, London (UK)

Description

Granite is one of the oldest of the ring-complexes in the Younger Granite province of Nigeria. Isotopically the granite is a normal plutonic type with delta18O values of + 8.1 +- 0.2 per mill. The amphibole and pyroxene have low variable delta18O values (+5.3-+6.4 and +4.4-+5.1 per mill, respectively). The low delta18O values are considered to be due to special features of the crystal chemistry of alkali amphiboles and pyroxenes, and the spread of each set of values may be due to sub-solidus isotope exchange between the minerals and albitising fluid

Additional details

Identifiers

DOI
10.1016/0009-2541(76)90012-7;

Publishing Information

Journal Title
Chemical Geology
Journal Volume
18
Journal Issue
4
Series
Chem. Geol.
Journal Page Range
297-308
ISSN
0009-2541

INIS

Country of Publication
Netherlands
Country of Input or Organization
Netherlands
INIS RN
8296008
Subject category
S58: GEOSCIENCES;
Descriptors DEI
AMPHIBOLE; BOREHOLES; CHEMICAL COMPOSITION; GRANITES; MINERALS; NIGERIA; OXYGEN 18; SILICATES
Descriptors DEC
AFRICA; CAVITIES; DEVELOPING COUNTRIES; EVEN-EVEN NUCLEI; IGNEOUS ROCKS; ISOTOPES; LIGHT NUCLEI; NUCLEI; OXYGEN COMPOUNDS; OXYGEN ISOTOPES; ROCKS; SILICON COMPOUNDS; STABLE ISOTOPES

Optional Information

Notes
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