Beryllium in deep-seated crustal rocks

Details Beryllium in deep-seated crustal rocks Beryllium in deep-seated crustal rocks

Mar 1973

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1973gecoa..37..702s&link_type=abstract

Geochimica et Cosmochimica Acta, vol. 37, Issue 3, pp.702-706

Physics

Scientific paper

In the granulites of the Brazilian shield, beryllium decreases in the order: intermediate granulites, basic granulites, granitic granulites. Two hypotheses are put forward for this peculiar distribution: 1. (1) isochemical behaviour during metamorphism of the original sediment, where Be was more abundant in pelitic than in arenaceous rocks; 2. (2) dehydration reactions and/or partial melting, with removal of a Bebearing mobilizate, affecting the granitic more than the intermediate or basic granulites.

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