A VISIT TO HADJER EL HAMIS, WEST-CENTRAL CHAD

摘要

In late January of 2013, my colleagues and I visited Chad (Republique du Tchad) for a week as part of an ongoing research project focusing on the Central Africa Shear Zone and the basement rocks of oil-producing basins. The intent of the new project is to characterize the plutonic and volcanic basement rocks of west-central Chad. The general geology of Chad is documented by regional-scale maps; however, the detailed geological history, in particular the geochronology, is poorly constrained and a number of geological problems need to be resolved, not just for resource exploration but also to fully understand the tectonomagmatic history of north-central Africa.