Abstract Many workers accept a metamorphic model for orogenic gold ore formation, where gold-bearing aqueous-carbonic fluid is an inherent product of devolatilization across the greenschist-amphibolite boundary with majority deposits formed within seismogenic zone at depths 6–12 km. Fertile oceanic rocks that source and metal may be heated through varied tectonic scenarios affecting deforming u...

Detailed knowledge of the lithospheric structure is essential for a better understanding tectonic evolution Xing'an-Mongolian Orogenic Belt (XMOB). We constrained across XMOB by receiver function imaging and shear wave splitting analysis from dense seismic array. The lithosphere-asthenosphere boundary (LAB) coherently imaged in different blocks. mid-lithospheric discontinuity also identified at...

The Minas-Bahia orogeny juxtaposed Archean crustal fragments and Paleoproterozoic magmatic arcs to form the São Francisco-Congo Paleocontinent by Rhyacian (ca. 2.05 Ga). Unravelling Minas segment of Orogenic Belt (MBO) is an important key understanding role in construction Columbia Supercontinent. Orosirian 1.9 Ga) final amalgamation was preceded a complex history accretion nuclei Proterozoic a...