INTERPRETATION OF GRAVITY AND MAGNETIC DATA TO PREDICT THE POTENTIAL STRUCTURES OF MINERALS IN THE AREAS OF SOUTH - SOUTHEAST VIETNAM WATERS

Authors

  • Tran Tuan Dung Institute of Marine Geology and Geophysics
  • Bui Viet Dung Vietnam Petroleum Institute
  • Nguyen The Hung Hanoi University of Science, VNU

DOI:

https://doi.org/10.15625/1859-3097/16/3/7388

Keywords:

Solid minerals, Manganese-iron aggregation, Basaltic volcanic eruption.

Abstract

The East Vietnam Sea is a marginal sea with complicated geological structures. The volcanic activities are quite strong after the sea-floor spreading in Cenozoic Era. There are the types of structure here favorable to the formation of solid minerals (manganese-iron aggregation). However, it is difficult to define their ranges and spatial locations. This paper presents the methods of reduction to the magnetic equator in low latitudes to bring out a better correlation between magnetic anomalies and their sources; High-frequency filtering is to separate gravity and magnetic anomalies as well as information about the solid minerals in the upper part of the Earth’s crust; 3D total gradient is to define the spatial location of high density and magnetic bodies. The potential structures of solid mineral are predicted by multi-dimensional correlation analysis between high frequency gravity and magnetic anomalies with weighted 3D total gradient.

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Published

31-08-2016

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