Tungsten minerals (scheelite and wolframite)from two genetic types of granitoids show significant dif-ferences in REE distribution,probably due to different material sources and origins.Tungsten miner-als in granite porphyry of the crust-mantle source are relatively high in ∑REE(1884ppm on average).∑ Ce is rich relative to ∑Y and ∑Ce/∑Y is relatively high(>1).The chondrite-normalized REE distribution patterns are characterized by a group of rightward-inclined curves.Tungsten minerals in quartz veins intruding the granites of crust origin have lower ∑REE (335 ppm on average).∑Y is rich relative to ∑Ce and ∑Ce/∑Y is relatively low(<1).The chondrite-normalized REE distribution patterns are characterized by a group of leftward-inclined curves.So the REE distribution patterns can be used to discriminate the sources of rock-and ore-forming materials and the genetic types of W deposits so as to provide clues to ore prospecting.
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