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Documenting a joint Chinese-European study of mesothermal lode gold
deposits from early Precambrian rocks of E. Hebei Province (NE
China), introductory chapters on gold deposits, and the basement
geology of the Sino-Korean Platform are followed by detailed
descriptions of the individual gold desposits. These include
descriptions of the lithology and structure of the host rocks, ore
geochemistry and petrography, and wall-rock alteration. Radiometric
ages, fluid inclusion data, and C-O-H-S-Pb isotopic compositions of
ore and gangue minerals constrain the timing, physical conditions
and the possible origin of mineralization. An important conclusion
is that, in contrast to the Archean greenstone-hosted gold
desposits in Canada, Australia and Africa, the Chinese examples
occur in high-grade polymetamorphic rocks, and the main impetus for
mineralization was tectonism and granitic magmatism of the late
Mesozoic Yanshanian orogeny. This book will be of considerable
value as a source of specific information and extensive references
about gold deposits and Archean geology in NE China, and should be
equally interesting to geologists working on Archean gold geology
and those concerned with Mesozoic Circum-Pacific metallogeny.
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