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Gold Exploration in the Timmins Area
John Andrew FyonJ. H. Crocket
其他書名
Using Field and Lithogeochemical Characteristics of Carbonate Alteration Zones
出版Ontario Ministry of Natural Resources, 1983
主題Technology & Engineering / Mining
ISBN07743732029780774373203
URLhttp://books.google.com.hk/books?id=P4JRAQAAIAAJ&hl=&source=gbs_api
註釋Gold deposits in the Timmins, Ontario area are spatially associated with carbonate alteration zones. However, not all carbonate alteration zones host gold mineralization, making it necessary for prospectors to be able to discriminate between metalliferous and barren carbonate alteration zones. To this end, an investigation of the carbonate alteration in the Timmins area was initiated in 1977 to better define the nature of the carbonate alteration, including those factors which control its distribution, and to establish geological & geochemical screening procedures for discriminating between gold-bearing & barren zones. After an introduction on the local geology, the report examines the distribution, morphology, and timing of carbonate alteration; the carbonatization environment; the significance of porphyry complexes, the origin of hydrothermal fluids, the significance of ultramafic flows & of the Destor-Porcupine Fault. Finally, gold exploration criteria are outlined and a multi-element trace element screen is proposed.