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Rb-Sr, Pb-Pb, U-Pb dating in the Bandja plutonic series of Western Cameroon. Donnees geochronologiques (Rb-Sr, Pb-Pb, U-Pb) sur le complexe plutonique de Bandja (Centre-Ouest Cameroun)

Journal Article:

Abstract

The results of U-Pb zircon and Pb-Pb on minerals and whole rocks are reported on a charnockite syn-D1 from the Bandja series in the western Cameroon. Data are interpreted as representing a plutonic emplacement at 640 Ma. A syn- to post-tectonic pluton is dated at 557 [+-] 8 Ma (Rb-Sr whole rocks isochron). These results confirm the Pan-African age of the charnockitic intrusive body. Initial isotopic [sup 87]Sr/[sup 86]Sr ratios of charnockite (0.709) and granite (0.7089) show the importance of crustal imprint in the magma genesis. (authors).
Authors:
Tchankam, C N; [1]  Vialette, Y [2] 
  1. Nancy-1 Univ., 54 (France)
  2. Clermont-Ferrand-2 Univ., 63 - Aubiere (France)
Publication Date:
Aug 01, 1994
Product Type:
Journal Article
Reference Number:
AIX-26-007734; EDB-95-008841
Resource Relation:
Journal Name: Comptes Rendus de l'Academie des Sciences. Serie 2, Sciences de la Terre et des Planetes; (France); Journal Volume: 319:3
Subject:
37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; CAMEROON; AGE ESTIMATION; ARCHAEOLOGY; GEOLOGIC AGES; ISOTOPE DATING; LEAD 206; LEAD 207; MONAZITES; RUBIDIUM 87; STRONTIUM 86; STRONTIUM 87; URANIUM; URANIUM 235; URANIUM 238; ZIRCON; ACTINIDE ISO; ACTINIDE ISOTOPES; ACTINIDE NUCLEI; ACTINIDES; AFRICA; ALKALI METAL ISOTOPES; ALKALINE EARTH ISOTOPES; ALPHA DECAY RADIOISOTOPES; BETA DECAY RADIOISOTOPES; BETA-MINUS DECAY RADIOISOTOPES; DEVELOPING COUNTRIES; ELECTRON CAPTURE RADIOISOTOPES; ELEMENTS; EVEN-EVEN NUCLEI; EVEN-ODD NUCLEI; HEAVY NUCLEI; HOURS LIVING RADIOISOTOPES; INTERMEDIATE MASS NUCLEI; INTERNAL CONVERSION RADIOISOTOPES; ISOMERIC TRANSITION ISOTOPES; ISOTOPES; LEAD ISOTOPES; MATERIALS; METALS; MILLISEC LIVING RADIOISOTOPES; MINERALS; MINUTES LIVING RADIOISOTOPES; NUCLEI; ODD-EVEN NUCLEI; PHOSPHATE MINERALS; RADIOACTIVE MATERIALS; RADIOACTIVE MINERALS; RADIOISOTOPES; RARE EARTH COMPOUNDS; RUBIDIUM ISOTOPES; SECONDS LIVING RADIOISOTOPES; SILICATE MINERALS; SPONTANEOUS FISSION RADIOISOTOPES; STABLE ISOTOPES; STRONTIUM ISOTOPES; THORIUM MINERALS; URANIUM ISOTOPES; YEARS LIVING RADIOISOTOPES; 400101* - Activation, Nuclear Reaction, Radiometric & Radiochemical Procedures
OSTI ID:
7035923
Country of Origin:
France
Language:
French
Other Identifying Numbers:
Journal ID: ISSN 1251-8050; CODEN: CRSPEA
Submitting Site:
FRN
Size:
Pages: 317-324
Announcement Date:

Journal Article:

Citation Formats

Tchankam, C N, and Vialette, Y. Rb-Sr, Pb-Pb, U-Pb dating in the Bandja plutonic series of Western Cameroon. Donnees geochronologiques (Rb-Sr, Pb-Pb, U-Pb) sur le complexe plutonique de Bandja (Centre-Ouest Cameroun). France: N. p., 1994. Web.
Tchankam, C N, & Vialette, Y. Rb-Sr, Pb-Pb, U-Pb dating in the Bandja plutonic series of Western Cameroon. Donnees geochronologiques (Rb-Sr, Pb-Pb, U-Pb) sur le complexe plutonique de Bandja (Centre-Ouest Cameroun). France.
Tchankam, C N, and Vialette, Y. 1994. "Rb-Sr, Pb-Pb, U-Pb dating in the Bandja plutonic series of Western Cameroon. Donnees geochronologiques (Rb-Sr, Pb-Pb, U-Pb) sur le complexe plutonique de Bandja (Centre-Ouest Cameroun)." France.
@misc{etde_7035923,
title = {Rb-Sr, Pb-Pb, U-Pb dating in the Bandja plutonic series of Western Cameroon. Donnees geochronologiques (Rb-Sr, Pb-Pb, U-Pb) sur le complexe plutonique de Bandja (Centre-Ouest Cameroun)}
author = {Tchankam, C N, and Vialette, Y}
abstractNote = {The results of U-Pb zircon and Pb-Pb on minerals and whole rocks are reported on a charnockite syn-D1 from the Bandja series in the western Cameroon. Data are interpreted as representing a plutonic emplacement at 640 Ma. A syn- to post-tectonic pluton is dated at 557 [+-] 8 Ma (Rb-Sr whole rocks isochron). These results confirm the Pan-African age of the charnockitic intrusive body. Initial isotopic [sup 87]Sr/[sup 86]Sr ratios of charnockite (0.709) and granite (0.7089) show the importance of crustal imprint in the magma genesis. (authors).}
journal = {Comptes Rendus de l'Academie des Sciences. Serie 2, Sciences de la Terre et des Planetes; (France)}
volume = {319:3}
journal type = {AC}
place = {France}
year = {1994}
month = {Aug}
}