Determining the dissolution rates of carbonate rocks is vital to advancing our understanding cave, karst, and landscape processes. Furthermore, role important for global carbon budget climate change. A laboratory experiment was setup calculate two whole rock samples with different petrographic makeup (ooids brachiopods). The were also explored under a scanning electron microscope evaluate textu...

Abstract The dual neural network (DNNW) model combines two networks to imitate artificial sedimentary facies division by learning the characteristics of multi-type logging curves corresponding microfacies a coring section. predicts many non-coring wells in research zone through data. After comparing classification performance fully connected (FCNWW) and AutoML when dealing with three FNDA, EALS...

Abstract Pyrite nodules up to 20 cm in diameter are found at the top of Marinoan (~ 635 Ma) Nantuo glacial diamictite as well cap dolostones and shale/siltstones lower Doushantuo Formation eastern Guizhou, southern China. Field occurrences, petrography, stable sulfur isotopic compositions pyrite were studied from a section Taoying, ? 34 S values different varied 7.3 60.5‰ stratigraphic levels. ...

Abstract We describe, interpret, and establish a stratotype for the Frenchman Mountain Dolostone (FMD), new Cambrian stratigraphic unit that records key global geochemical climate signals is well exposed throughout Grand Canyon central Basin Range, USA. This flat-topped carbonate platform deposit uppermost of Tonto Group, replacing informally named “undifferentiated dolomites.” The two chemostr...

While the characteristics and origin of drusy calcite cement in carbonate deposits is well constrained literature, little attention paid to dolomite cement. Petrographic observations, stable isotopes, fluid-inclusion microthermometry suggest that Permo-Triassic conglomerate/breccia dolostone beds northern United Arab Emirates has precipitated as not by dolomitization The low ?18OVPDB (?9.4‰ ?6....

Industrial waste generated by the natural stone industry when working with limestone and dolostone is mainly composed of calcium carbonate magnesium carbonate. This mineral composition makes soil stabilization a potential use waste. However, much research must be carried out to fully understand aptitude this for improvement. In work, strength microstructure clayey stabilized using powder lime o...

Abstract New investigations of petrographic and geochemical characteristics Mesozoic sandstones from the northwestern Gulf Suez in Egypt have been undertaken, documenting dominance quartzose containing on average ~ 5% mostly sedimentary subordinately metamorphic lithic fragments (siltstone, sandy siltstone, and, more rarely slate, metasiltstone, limestone, dolostone, quartz-muscovite schist, gn...

The talc deposits of Puebla de Lillo (Cantabrian zone, Variscan belt of Iberia) are hosted by hydrothermal dolostones replacing Carboniferous limestones and are generally located adjacent to Ordovician quartzites. The talc orebodies occur as metasomatic replacement zones of the dolostones near faults or lithologic contacts and, to a lesser extent, as replacements of the nearby quartzites or sla...