The bio-weathering process contributes majorly in the physical shaping of earth’s surface. weathering mineral is coupled to formation new minerals and release bio-available nutrients for flora as well microbial communities. Granites from Eastern Dharwar Craton (EDC) India are felsic plutonic igneous rock composed nutritive minerals. major elemental composition granite such that, it forms an anc...

Abstract This study presents petrographic and geochemical characterization of 46 pre-impact rocks 32 impactites containing and/or representing impact melt rock from the peak ring Chicxulub structure (Yucatán, Mexico). The aims were both to investigate components that potentially contributed (i.e., lithologies) better elucidate emplacement at Chicxulub. presented here are subdivided into two sam...

The Belomorian Province of the Fennoscandian Shield exposes numerous Precambrian eclogites, which makes it significant for study early tectonic processes. age these eclogites has been discussed more than 15 years and regarded as either Archean or Paleoproterozoic. In Kuru-Vaara quarry within northern Province, eclogitic assemblage is preserved in concordant mafic boudins felsic gneisses a parti...

We collected continuous ambient noise data recorded between 2014 and 2015 at 288 broadband stations. Phase velocity maps of Rayleigh waves are constructed from 2 to 35 s periods. Combining phase dispersions long periods (40, 45, 50, 55, 60 s) obtained earthquake data, we construct a three-dimensional crustal S-wave (Vs) model with lateral resolution ∼20 km beneath the Qilian orogenic belt (QLOB...

Lower Paleozoic black shales from Estonia, Sweden, and Russia were analyzed for major trace elements to reconstruct the provenance, tectonic setting, paleoweathering conditions of these shales. The shale is highly enriched in U, V, Mo, Pb (except samples Sweden where slightly enriched), SiO2, Fe2O3, K2O, TiO2 depleted CaO, Na2O, MnO, with respect average provenance signatures (Th/Sc versus Zr/S...

Selected Malaysian black shale sequences of the Permo-Triassic and Devonian ages that crop out in Central Belt were investigated to discuss their chemical composition, provenance, tectonic setting, weathering history. X-ray fluorescence (XRF) analysis shows BRSZ Unit 1 has elevated SiO2, TiO2, K2O contents compared Semantan Gua Musang shale. In terms trace elements, element shales. The highest ...

Fluids play a major role in facilitating igneous/metamorphic processes the Earth’s crust and mantle. In this study, we investigate nature composition of fluids interior by studying lower crustal rocks. We compare accessory minerals (e.g., apatite, monazite, allanite, titanite), their texture, mineral reactions among regionally distributed metamorphosed mafic felsic rocks representing roots Neoa...

Abstract Mercury (Hg) provides critical information on terrestrial planet formation and evolution due to its unique physicochemical properties multiform isotopic compositions. Current knowledge of Hg is mainly limited Earth's surface environments, the understanding in interior remains unclear. Accretionary orogens are major settings for continental crustal growth crust-mantle interactions. We s...