Among various guides to the exploration of contact deposits, detailed and exact geology especially the structural control and the physico-chemical control of the deposits are the most fundamental informations.
Detailed and systematic, geological and mineralogical study will gives an exact three dimentional structural and genetical patterns to the exploration geologists, even the object looks massive, irregular and very much complicated.
Folding and fissure systems are important, and the locational or morphological studies of theintrusive mass are also necessary.
The close attention has to be given to the study of physico-chemical conditions at the time of the deposition of ore. This physico-chemical control, such like the temperature of depositions, chemical charactor of the “mineralsolution”, time and space relations between shorn minerals and ore-minerals, et al, will give higher probabilities to the ore findings if these exact genetical knowledges canbe combined with structu ral controls.
