Criteria for Recognit

VMS- and Rift-Related FelsicRocks: The Exceptions• Primitive arc terranes have rhyolites that are oftenHFSE and REE depleted - FIV Rhyolites• Rhyolites are typically depleted in trace elements.• They are spatially associated, however, with hightemperature mafic magmatism: boninites, depleted arctholeiites, and MORB.• Are high temperature melts, but low HFSE-REE due tolow contents in the source regions for the rhyolites.• Examples: Flin Flon, Snow Lake primitive arcsequence, Rambler-Ming