Across the entire mantle we interpret 94 positive seismic wave-speed anomalies as
subducted lithosphere and associate these slabs with their geological record. We document …

Basaltic to andesitic compositions predominate island arc magmatism; ultramafic magmas
are rare. Ultramafic (MgO= 21–33 wt.%) tuff breccia, lapilli tuff, and ash tuff of the Middle to …

Abstract The Cache Creek and Stikine terranes in northern British Columbia are
unconformably overlain by Upper Cretaceous volcanic, hypabyssal, and sedimentary rocks …

Primitive, near-primary arc magmas occur as a volumetrically minor≤ 100 m thick unit in the
Canadian Cordillera of northwestern British Columbia, Canada. These primitive magmas …

Abstract The Mount Hickman ultramafic complex (Triassic) is a composite Alaskan-type
ultramafic pluton in Stikine terrane, northwestern British Columbia. Cumulate rocks in the …