The uppermost section of the Hunter Mine group (HMG) (2728 Ma), a bimodal volcanic complex in the Abitibi greenstone belt, contains both oxide and carbonate facies banded iron-formation (BIF). This paper explores the relationship between volcanic activity and the development of the two types of iron-formation. The oxide facies, represented by chert-jasper-magnetite iron-formation is widespread ...

Istrian Flysch was deposited during the Eocene in Dinaric foredeep and is composed of hemipelagic marls various gravity flow deposits. The latter are predominantly 5-40 cm thick turbidites, developed mostly as laminated cross-rippled sandstone beds (Tb-e, Tc-e Td-e Bouma sequences). In addition to there deposits characterized by a significant thickness, occasionally more than 10 m, described co...

Stromatolites, among the earliest fossils in Earth’s history, are widely distributed on margins of North China Precambrian carbonate platform. The formation processes stromatolites reveal biomineralization and evolution early life Precambrian. well-preserved stromatolitic dolostones recorded Ganjingzi Formation developed around Yuanjiagou village, southern Liaoning Province. morphology manifest...

The C 1 coal of Latest Permian during mass extinction in eastern Yunnan was studied to reveal the terrestrial paleoenvironment and influence geological events on coal-formation extinction. An analysis Rare Earth Elements (REEs) conducted from Yantang Mine Xuanwei, Province, which deposited latest Permian. A total 24 samples coals, partings, roofs floors were taken fresh face underground mine. r...

Massive Zn-Cu-Fe sulfide deposits at the Garon Lake Mine occur in three sulfide lenses in a group of metamorphosed rhyolite crystal tuffs, metasediments and basalts. The major ore minerals are sphalerite, chalcopyrite, pyrrhotite and pyrite. Minor associated silicates are actinolite, tremolite, chlorite, albite and quartz. Rounded detrital pyrite, magnetite and chert grains and diagenetic p...

The Xinjiazui gold deposit, a newly discovered is situated in the northwestern margin of Yangtze Block, China. source and genesis mineralization are poorly understood. It urgent to use H–O isotopic composition quartz geochemistry pyrite evaluate origins Au ore-forming fluids this deposit. Three types were identified, including synsedimentary framboidal pyrites (Py0), directional arrangement pre...