New techniques in regional 3D geological mapping, simulation and visualization

摘要

The Rediscover Victoria 3D program is developing a sophisticated 1:250,000 scale 3D model of the earth's crust across Victoria to provide new 3D data that will assist existing minerals and energy explorers. It will also help determine next-generation exploration targets, such as potential geothermal sources and carbon geosequestration sites. The 3D modeling work, incorporating onshore and offshore geology, will provide a robust geometric framework for analysing controls on the formation and accumulation of resource systems. New models of the Murray Basin, Bendigo zone and Otway Basin (and work underway in the Gippsland Basin) is allowing integrated analysis of complex systems such as the pressure regime within a basin undergoing simultaneous irrigation from onshore freshwater aquifers, drawdown of offshore oil and gas reservoirs and injection of captured CO_2.