The Ediacaran Dengying Formation in Central Sichuan Basin is the deep dolomite gas reservoir with largest natural reserves China, providing an excellent example for understanding effect of diagenesis evolution on quality. By integrating petrology, geochemistry and situ U-Pb dating, this study aims to reveal genesis different rock fabrics their corresponding diagenetic events, discuss temporal r...

the komshecheh barite-fluorite deposit is the product of epigenetic hydrothermal mineralizationin dolomitized limestone of middle triassic age. the deposit is structurally and lithologically controlled andoccurs predominantly as bedded stratabound replacement sheets, although the veins and solution-collapsebreccias constitute important modes of occurrence. brecciation, dolomitization, silicific...

The Ab-Bid deposit, located in the Tabas-Posht e Badam metallogenic belt (TPMB) Central Iran, is largest Pb-Zn (±Cu) deposit Behadad-Kuhbanan mining district. Sulfide mineralization formed Middle Triassic carbonate rocks and contains galena sphalerite with minor pyrite, chalcopyrite, chalcocite, barite. Silicification dolomitization are main wall-rock alteration styles. Structural textural obse...

The Nanmushu Zn–Pb deposit is a large-scale and representative in the Mayuan ore field on northern margin of Yangtze Block. This study investigates trace element geochemistry sphalerite from this using laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS). results show that main elements include various elements, such as Mn, Fe, Cu, Ga, Ge, Ag, Cd, Pb, Co, Hg, Tl, In, Sn, Sb. ...

A detailed oxygen isotope study of detrital quartz and authigenic quartz overgrowths from shallowly buried (<1 km) quartz arenites of the St. Peter Sandstone (in SW Wisconsin) constrains temperature and fluid sources during diagenesis. Quartz overgrowths are syntaxial (optically continuous) and show complex luminescent zonation by cathodoluminescence. Detrital quartz grains were separated from ...