The ac idi zing (reatment is a method usuall y used for Ihe cnhacc menl of produc tivi ty i ll o il-gas fie lds . Treati ng thin -sec ti ons for microscopi c pe trog ra phi c anal yses wit h comm on acid s, establishes the so lubilit y and dispersion o f minerals, as wel l as secondary formatio n damage. The best res ults were achieved by treating carbonale rocks and rocks wilh carbonate const ...

Carbonate rock is a general term for the composed of carbonate minerals, which mainly sediments, with calcite (limestone) and dolomite (dolomite) as main forms. rocks are important oil storage rocks, storing more than half world's natural gas oil, co-existing various types solid sedimentary deposits. They themselves kind mineral that can be used in construction, chemical industry, metallurgy ot...

Marine siliceous rocks are widely distributed in the central orogenic belt (COB) of China and have a close connection to the geological evolution and metallogenesis. They display periodic distributions from Mesoproterozoic to Jurassic with positive peaks in the Mesoproterozoic, Cambrian--Ordovician, and Carboniferous--Permian and their deposition is enhanced by the tensional geological settings...

High salt environment was widespread in modern and geological record, and sedimentation induced by microbes in these systems was an important part of sedimentary minerals and rocks. The mechanism of microbiologically induced carbonate precipitation has not been solved thoroughly although numerous scholars and experts have made specifically research of the problems with respect to minerals induc...

The spatial separation of macroscopic rheological behaviors has led to independent conceptual treatments frictional failure, often referred as brittle, and viscous deformation. Detailed microstructural investigations naturally deformed carbonate rocks indicate that both failure mechanisms might operate during seismic deformation carbonates. Here, we investigate the were active in two fault zone...

[1] Despite in situ analyses by several landers, the composition of the Martian soil remains unclear. Recently, constituent minerals in the soil have been proposed from thermal emissivity and Mössbauer spectroscopic data from Mars. These data were interpreted to show spectral evidence for carbonate and an unspecified mineral containing bound water, as well as olivine. Here we present an alterna...

Core samples from Middle Silurian pinnacle reefs in northern Michigan exhibit a regionally consistent assemblage of late diagenetic phases including geopetal diagenetic sediment, disseminated pyrite, pyrobitumen, rhombic dolomite cement, and equant calcite spar. High (>80°C) fluid inclusion homogenization temperatures and inclusions of Silurian-sourced oil in these diagenetic phases indicate th...