ABSTRACT Volcanogenic massive sulphide (VMS) deposits are important global sources of
base and precious metals. Igneous geochemistry (petrochemistry) of mafic and felsic rocks …

Throughout Earth's history, all volcanogenic massive sulfide (VMS)-hosting environments
are associated with specific assemblages of mafic and felsic rocks with distinct …

Abstract The Late Devonian was an epoch of dramatic evolutionary and environmental
changes linked primarily with the Frasnian-Famennian (FF) mass extinction. Current data …

This study reports for the first time the occurrence of bimodal dyke in the Shuigongtuan area
of Bachu County, Tarim Basin, NW China. Here, quartz syenite porphyry and diabase dykes …

Abstract The allochthonous, pericratonic Yukon-Tanana terrane (YTT) underlies much of
southwest Yukon, easternmost Alaska and the Coast and Cassiar mountains of northern BC …

Regionally metamorphosed and deformed greenschist and amphibolite facies
metasedimentary and meta-igneous rocks of Paleozoic and Proterozoic (?) protolith age …

Devonian to Permian igneous rocks in the Yukon-Tanana terrane (YTT) record six cycles of
arc, arc-rift, continental rift and back-arc basin magmatism, each set apart from the others by …

Rocks of the SE Alaska subterrane of the Yukon-Tanana terrane (YTTs) consist of regionally
metamorphosed marine clastic strata and mafic to felsic volcanic-plutonic rocks that have …

This report provides a descriptive model of heavy-mineral sands, which are sedimentary
deposits of dense minerals that accumulate with sand, silt, and clay in coastal environments …

The tectonic significance of early Paleozoic convergent-margin rocks of the Alexander and
Sierran-Klamath terranes is poorly understood. New phengite 40Ar/39Ar and Rb-Sr results …