OCTek-Asia Pacific


OCTek
Asia-Pacific


The OCTek-Asia/Pacific study has investigated the complex rifted margins and associated extensional basins of the Asia-Pacific region between -20°S and 60°N, an area which includes the Pacific-rimming basins of SE Asia, East Asia and NE Asia.


The results will therefore be of interest to those exploring or evaluating the offshore basins of:
Papua New Guinea & Northern Australia
The Indonesian, Malaysian, Philippine archipelago
Gulf of Thailand, Andaman Sea & offshore Vietnam
South China Sea & East China Sea
Sea of Japan & Sea of Okhotsk


The primary output from OCTek-Asia/Pacific is a comprehensive suite of digital grids for the Asia-Pacific area which show:
1 Depth to Moho
2 Total crustal thickness
3 Residual continental-basement crustal thickness
4 Crust and lithosphere thinning/beta factor
5 The residual thermal gravity anomaly at the present-day


The results have been tuned to local breakup and rift age along the margins and within the basins. The grids are also tuned to local crustal reference thickness and explore a range of plausible scenarios for the amount of volcanic addition during breakup.


The suite of digital grids is available for unrestricted use by purchasing companies and institutions and is supported by an atlas of maps, which documents the techniques and data used together with a map-plot from all of the supplied grids.


OCTek-Asia/Pacific is based on analysis of data available in the public domain. OCTek gravity inversion is proven technology which has also delivered the OCTek-Atlantic, OCTek-Arctic/North Atlantic, OCTek-Australasia, OCTek-GoM and OCTek-Indian Ocean studies together with confidential results on a proprietary basis from rifted margins worldwide.


A study applying the OCTek gravity inversion methodology to the conjugate South Australia – Antarctic margins has been made available for free public download by Geoscience Australia.

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