Mineral Resources: Research Objectives for Continental Scientific Drilling

摘要

Many important metals are concentrated in mineral deposits formed by hydrothermal activity driven by heat from subvolcanic intrusions. The report identifies and prioritizes for research drilling specific mineral deposit systems that are suitably accessible and geometrically complete in the sense that no portion of the deposit has been removed by faulting or erosion. Examples are given of ore types that should be considered in selecting areas of existing drill holes for further study, including porphyry copper systems, precious metal environments, massive sulfide deposits, Mississippi Valley-type deposits, and sedimentary environments.