MineraSogical Mapping in Jiaodong Gold Province, China

摘要

Mineralogical mapping is much less popular than geographical and geological mappings. It is considered to be one of the most important methodological achievements in modern mineralogy. In mineralogical mapping the mineralogical phenomena and their realities are qualified, quantified, located and orientated on the map by means of various mapping parameters. Its theoretical foundation is Genetic Mineralogy, especially the Theory of Mineral Typomorphism and its Six Principles. It is helpful to the study of fundamental problems of geosciences like petrogenesis and nietallogenesis and useful to the solution of practical problems like prospecting and exploitation of minerals. History of mineralogical mapping in China is reviewed in short. Functions of mineralogical mapping are summarized in detail from more than one hundred large-scale local mineralogical mappings made in 1984-1994 over more than twenty gold deposits and several small-scale regional mineralogical mappings made in 1995-1996 covering an area of 3396 km2 with 26850 measurements of mineralogical parameters over the three major mineralized belts. Three new mineralogical plane mappings at various levels of Jiaojia Mine representative of the wall-rock alteration type of deposits in northwestern Jiaodong Gold Ore Province and one new regional mineralogical mapping over the northern Jiaodong gold mineralized zone with high to superhigh grade of ores up to 20-30wt% are cited as examples. In the four cited examples appearing frequency of P conduction type of thermoelectricity of pyrites is taken as mapping parameter with 5343 measurements.