This work evaluates an exceptionally complex natural laboratory, the Middle Triassic Latemar isolated platform in northern Italian Dolomite Mountains and explores spatial temporal gradients processes products related to contact metamorphism, dolomitization dedolomitization of marine limestones. The relation between petrographic change re-equilibration geochemical proxy data is evaluated from pe...

Department of Geological Sciences, Indiana University Bloomington IN 47405, USA. E-Mail: [email protected] Dpt. Cristal.lografia, Mineralogia i Dipòsits Minerals, Facultat de Geologia, Universitat de Barcelona Martí i Franquès, s/n, 08028 Barcelona, Spain. E-Mail: [email protected] Department of Geosciences, Pennsylvania State University University Park, PA 16802, USA. E-Mail: rfletche@geosc...

The 5th sub-member in 5 Member Ordovician Majiagou Formation Daniudi Gas Field, Ordos Basin, is deposited an environment consisting of ancient epicontinental sea, where very fine crystalline dolostone reservoir has developed. In this study, based on the petrological and geochemical characteristics, genesis dolomite developed M55 were studied by analyzing properties sources dolomitization fluids...

Massive dolostones replacing build-ups and containing H2S of thermochemical sulfate reduction (TSR) origin occur in the Upper Permian reef bank deposits, northeastern Sichuan, China, despite absence gypsum or anhydrite which are usually present TSR cases. Fluid chemistry from fluid incluions δ13C, δ18O 87Sr/86Sr values different diagenetic phases were measured to determine dolomitization regime...

The link between fluid circulation schemes and basin histories remain one of the most valuable tools to understand diagenetic evolution petroleum reservoirs. This study proposes a model for Deep Lacq reservoir constrained by petrography, geochemistry, inclusions studies modeling analyses. Drill cores penetrating 3000 m deep Late Jurassic Early Cretaceous “Deep Lacq” reservoirs, in Aquitaine SW ...

Abstract Study of secondary dolomitization and documentation the evolution basinal fluids host rock, especially that fine-grained deepwater carbonate mudstone are interest toward reservoir characterization. From this perspective, field characteristics in relation to mineralogy, petrography geochemistry Paleaozoic carbonates Kinta Valley, Peninsular Malaysia, were investigated documented. A tota...

The Upper Jurassic carbonates of the eastern part of the Kopet-Dagh Basin, with thickness of 470 m, are the major gas-bearing reservoir in NE Iran. The objectives of this study are recognition of diagenetic history and estimation of porosity related to dolomitization. Based on field and laboratory study, four carbonate facies associations have been identified at the Mazdavand outcrop. Most of t...

Anomalously saline waters in Ocean Drilling Program Holes 1127, 1129, 1130, 1131 and 1132, which penetrate southern Australian slope sediments, and isotopic analyses of large benthic foraminifera from southern Australian continental shelf sediments, indicate that Pleistocene–Holocene meso-haline salinity reflux is occurring along the southern Australian margin. Ongoing dolomite formation is obs...