Introduction: Studies of komatiitic lavas continue to play a significant role in refining our understanding of early planetary tectonism, and thermal and compositional structure of the crust-mantle. Komatiites further represent a major lithologic component of the primitive landscapes which fostered early life on Earth, and may have played a significant part in modification of early atmospheric ...

Shallow water sedimentary units are generally considered scarce in Archean greenstone belts. We describe an unusual quartz arenite-subaerial andesite association within the Archean Hisovaara greenstone belt, a fragment of the Parandovo-Tikshozero belt within the Karelian craton of the Baltic Shield. The Hisovaara greenstone belt consists of several lithotectonic assemblages: (1) a komatiite-tho...

A large anticline structure that includes the West Azov and Remivka blocks occurs in western part of Domain Ukrainian Shield. These are composed rocks Mesoarchean (3.2-3.0 Ga) granite-greenstone association relics an older basement. The is divided into two parts by Bilotserkivka sub-latitudinal strike; northern Huliaipole blocks, southern comprised Saltycha anticline. Archean plagiogranitoids u...

Abstract A magnetotelluric (MT) study across the Red Lake greenstone belt of western Superior craton, Canada, images a 50-km-long north-dipping conductor (<20 Ω·m) at 20–25 km depth and subvertical conductors spatially correlated with crustal-scale shear zones large orogenic gold deposits. The are interpreted to be conductivity signature deep crustal source auriferous fluids pathways sys...