With the Upper Cambrian Xixiangchi Formation in eastern Sichuan Basin as target, this study investigates various diagenetic events during different stages deep dolomite reservoirs, accompanied by evaluations of their effects on formation and evolution reservoir rock. A series experiments are implemented core outcrop samples, including petrologic analysis, fluid inclusion rare earth minor elemen...

Different techniques have been combined to identify the structure and chemical composition of siliceous breccia from a drill core nickel laterites in New Caledonia (Tiebaghi mine). XRD analyses show quartz as major phase. Micro-Raman spectroscopy confirmed presence reddish microcrystalline phase with inclusion microparticles iron oxides oxyhydroxide. Lithoclasts present are composed lizardite, ...

Significant evolutionary stages of Selinitsa Cave (SW Peloponnese, Greece) were revealed by 3D mapping, as well geomorphological study the cave and nearby landscape. Four marine terraces identified in area coastal at 6, 10.7, 16.6, 30–32 m above sea level (asl), with terrace 16.6 representing Marine Isotope Stage (MIS) 5. The widest karstified space clusters between 15.73 18.05 peak lying 16.4 ...

Some previous studies have already highlighted the importance of Quaternary sediments as geoheritage, although related knowledge remains incomplete and geographically biased. Unique features are often overlooked in areas famous for their pre-Quaternary geoheritage. Moreover, established high-value linked to phenomena require comprehensive descriptions; therefore, it is reasonable analyze (even ...

Density-driven dissolution of carbon dioxide in water is a well-known and much described mechanism geological sequestration this greenhouse gas. It remarkable that such enhanced does not receive attention karst hydrology speleology. Models hypotheses on development are complex consider many different processes. We focus here the influence CO2 partial gas pressures at interface between atmospher...

Jatijajar Village which is included in the Gombong karst area accordance with Minister of Energy and Mineral Resources Decree No. 3043 K / 40 MEM 2014 confirmed by Kebumen Regency Regional Regulation 23 2012 concerning RTRW for 2011 - 2013. Karst a landscape karstification process carbonate rock (CaCO3) deposited after passing through available geological space time. has distinctive hydrologica...

The primary function of national parks (NPs) is nature conservation, but for the majority them, tourism also plays an important role. Tourism generates significant incomes, benefits are often unequally distributed in space, as disadvantages. karst regions generally less developed terrains terms traditional livelihoods, due to their special morphology, offers great opportunities. Nonetheless, ma...

Abstract. Here we present results of digital modelling a specific setting hypogenic carbonic acid speleogenesis (CAS). We study an unconfined aquifer where meteoric water seeps through the vadose zone and becomes saturated with respect to calcite when it arrives at table. From below, deep-seated high pCO2 invades limestone formation by forced flow. Two flow domains arise that host exclusively f...

Improving the recognition of paleo-fluid circulation history is great significance to reconstruct pore evolution during carbonate diagenesis. Integrated petrography, fluid inclusion, isotopic and elemental geochemistry (laser ablation inductively coupled plasma mass spectrometry) studies, calcites generated in paleocaves, fractures were investigated. This study aims reveal origin karstification...