Geochemical and isotopic fluid signatures from a 2.9 – 3.2 km deep, 45 55 ℃ temperature, hypersaline brine Moab Khotsong gold uranium mine in the Witwatersrand Basin of South Africa were combined with radiolytic water-rock exchange models to delineate evolution over geologic time, explore conditions for habitability. The brines (Ca-Na-Cl) 215 246 g/L TDS, Cl - concentrations up 4 mol/L suggesti...

The siliceous shale oil and gas in Nadanhada terrane has been studied through field geological survey, geochemistry sedimentary petrology. results show that the area belongs to a good reservoir, rock is brittle suitable for exploitation. abundance of organic matter relatively high. From west east from south north, increases maturity decreases. dynamic metamorphism thermal contact rocks are grad...

Rock physical model and amplitude variation with offset (AVO) patterns considering the content of organic matter composition minerals have a wider significance for guiding identification prediction mud-rich source rock. A rock is proposed describing elastic properties kerogen in different maturity stages. The builds an intrinsic connection between parameters rock, thereby providing theoretical ...

The exceptional development of lateritic profiles make the Amazon one best places to conduct a refined study on effects long-term tropical climate Earth's surface rocks. Concentrations Nd and Sr isotopes, as well rare earth elements (REE), Sr, other trace were determined in six order shed new light into element behavior processes controlling geochemistry transfer these among different compartme...

The source of metals involved in the formation oceanic ultramafic-hosted hydrothermal Cu-Fe-Co-Zn-Ni mineralization remains poorly constrained. Here, we focus on a fossil mineralized system preserved Platta nappe (SE Switzerland), where mantle rocks were exhumed along detachment faults to seafloor during Jurassic rifting. mineralization, associated with Fe-Ca-metasomatism (ilvaite-hydroandradit...

Abstract Rapakivi-type quartz monzonite and the underlying dark-grey granodiorite from Pietkowo IG1 borehole, in Polish part of southernmost Fennoscandia have been investigated using whole-rock geochemistry, Sm–Nd isotope geochemistry U–Pb zircon dating. The was emplaced at 1495–1491 Ma, although slightly older cores (antecrysts) 1513 Ma imply a two-stage crystallization. geochemical similariti...

The Leg 104 organic geochemistry program consisted of monitoring (a) hydrocarbon gases, (b) organic and inorganic carbon, and (c) parameters resulting from Rock-Eval pyrolysis at three sites on the Vdring Plateau. The results amplify some of those obtained earlier on Deep Sea Drilling Project (DSDP) Leg 38. In a regional sense there is an inverse correlation between amounts of hydrocarbon gas a...

Petrology and geochemical characteristics of granitic rocks from South Sulawesi, especially from Polewaliand Masamba area are presented in order to elucidate their origin of magma and geodynamic setting. The granitic rocks in these areas are dominated by granodiorite and granite in composition. Quartz, K-feldspar and plagioclase occur as major phases with hornblende and biotite as major ferroma...