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Gold Ore an overview ScienceDirect Topics. The Mother Lode District of California may be the most famous of a class of lode goldore deposits that are found in metamorphic terranes associated with accretionary plate tectonics They have also been called greenstonebelt and mesothermal lode ores (Figure 1) The discovery in 1848 of placer gold at Sutter's Mill, downstream from this district, led to ...
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