GRAVITY SURVEYS IN THE NORTH SUMATRA FOREARC

J. Milsom, Sarjono Dipowirjo, Baizar Sain, J. Sipahutar

Abstract


Land gravity surveys on the islands of the North Sumatra Forearc have defined regions of high fields and strong gradients, the majority of which seem to be associated with the presence of mafic and ultramafic rocks. The onshore data, obtained in the course of joint LEMIGAS-University of London expeditions, complements marine data obtained by American oceanographic institutes and allows gravity maps to be completed of the whole forearc regine.


Keywords


Associated, Oceanographic, Forearc Regine

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References


Beaudry, D. & Moore, G.F., 1985. Seismic Stratigraphy and Cenozoic Evoluation of West Sumatra Forearc Basin, Bull. Amer. Assoc. Petrol. Geol., Vol. 69. Pp. 742-759.

Karig, D.E., Lawrence, M.B., Moore, G.F. & Curray, J.R., 1980. Structural Framework of the Forcarc Basin, NW Sumatra. J. Geol. Soc. London 137. Pp. 77-91.




DOI: https://doi.org/10.29017/SCOG.13.1.1132

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