THE ORIGIN OF AL-MG GRANULITES OF IHOUHAO UENE (HOGGAR-ALGERIA) - WEATHERING AND ALTERATION OF MAFIC AND ULTRAMAFIC ROCKS DURING ARCHEAN

Authors
MOURI H GUIRAUD M KIENAST JR
Citation
H. Mouri et al., THE ORIGIN OF AL-MG GRANULITES OF IHOUHAO UENE (HOGGAR-ALGERIA) - WEATHERING AND ALTERATION OF MAFIC AND ULTRAMAFIC ROCKS DURING ARCHEAN, Comptes rendus de l'Academie des sciences. Serie 2, Mecanique, physique, chimie, sciences de l'univers, sciences de la terre, 318(7), 1994, pp. 941-948
Citations number
23
Categorie Soggetti
Multidisciplinary Sciences
Journal title
Comptes rendus de l'Academie des sciences. Serie 2, Mecanique, physique, chimie, sciences de l'univers, sciences de la terre → ACNP
ISSN journal
07644450
Volume
318
Issue
7
Year of publication
1994
Part
2
Pages
941 - 948
Database
ISI
SICI code
0764-4450(1994)318:7<941:TOOAGO>2.0.ZU;2-L
Abstract
The study of phase relationships in Archean Al-Mg granulites of Ihouha ouene within the KFMASH system has shown that these rocks are not rest ites generated by partial melting. Therefore, their unusual bulk compo sition is due to pre-metamorphic processes. Projection of different bu lk rock compositions from the literature in the compatibility diagram established for Al-Mg granulites shows that the possible protoliths ar e some kind of altered and/or weathered mafic or ultramafic rocks.