Magmatic and structural framework of PGE and other mineralization in northwestern Wrangellia, central Alaska
A thick and regionally extensive sequence of low-grade-metamorphosed Late Triassic basaltic rocks, the Nikolai Greenstone, is a characteristic component of the stratigraphy of the Wrangellia terrane in central and southeastern Alaska, Yukon, and British Columbia. Mafic to ultramafic intrusions feeding this extensive …