WebMore than twenty years experience in project management, prospecting, mapping and exploration of minerals, coal, and oil and gas deposits, feasibility studies of mining projects; application of ... WebSample No. YM-7: the gray-white massive quartz with fine veins and clusters of metal sulfides (Figure 8(d)). Sample No. YM-8: the gray-white massive quartz with fine veins pyrite and chalcopyrite (Figure 8(e)). Sample No. YM-9: the gray massive porphyry type Cu ore, and the quartz and metal sulfides have a vein symbiotic relationship (Figure 8(f)).

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WebI would probably consider 1 m to be the minimum sampling interval for use in a porphyry deposit, and probably 3 m as the maximum (although 1.5 or 2 m is probably the norm and best for most cases). Obviously, if a major lithological boundary occurs within the core, the adjacent samples should be terminated at the contact (and this typically lengthens and … WebJun 22, 2015 · The key to porphyry exploration is the alteration of the surrounding rocks that occurred during the intrusion and mineralization. The so-called prophylactic folic and potassic alterations I spoke about. … flywheel computer

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