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Preliminary X-ray, SEM, TEM, and optical mineralogical results are reported to discuss the paragenesis, age distribution,and origin of clay minerals, silica modifications and authigenic silicates foun...
Leg 41 holes, drilled near the northwest margin of Africa, penetrated Mesozoic and Cenozoic sediments.The raction of these sediments contains montmorillonite, kaolinite, hydromica, chlorite, m...
Abstract: The mass-dependent equilibrium stable isotope fractionation between different materials is an important geochemical process. Here we present an efficient method to compute the isotope fracti...
The mass-dependent equilibrium stable isotope fractionation between different materials is an important geochemical process. Here we present an efficient method to compute the isotope fractionation be...
The metallic mineral resources of Nigeria have not been fully appraised due to lack of sufficient studies and technology. Previous works identified a number of minerals deposits which have remained la...
Phyllosilicates on Mars mapped by infrared spectroscopic techniques could have been affected by dehydration and/or dehydroxylation associated with chemical weathering in hyperarid conditions, volcanis...
As CO2 is injected into pore spaces of water-filled reservoir rocks, it displaces much of the pore fluids. In short terms (several to tens of years), the greater part of the injected CO2 is predicted ...
Section 388 of the Energy Policy Act of 2005 (EPAct) gave the US Department of the Interior (DOI) jurisdiction over activities that "produce or support production, transportation, or transmission of e...
The guest editors of this special issue of Oceanography magazine on marine renewable energy asked the US Department of the Interior's Minerals Management Service (MMS) and the Federal Energy Regulator...
Applying a combination of different methods – X-ray diffraction, scanning electron microscopy, gamma-spectroscopy and X-ray spectroscopy, a suite of uranium minerals, meta-torbernite, meta-uranospinit...
A wide range and variety of minerals are used in the pharmaceutical industry as active ingredients. Such minerals may be administered either orally as antacids, gastrointestinal protectors, antidiarrh...
The Estonian Devonian sediments consist of carbonate, siliciclastic, and mixed carbonate-siliciclastic deposits that have undergone extensive dolomitization. Chemical analysis of 165 samples and XRD m...
The sand-rich ejecta containing a considerable amount of mineral grains with impact-induced features was studied in five boreholes drilled around the Kärdla impact meteorite structure. Quartz gra...
Traditional geological mapping in Latvia was initiated in the 1930s. Basic geological mapping, however, started just after the Second World War and thus provides a very simplified picture about geolog...
WHO NEEDS MINERAL RESOURCES?Many modern and urbanized persons, often holding influential positions in economy, politics, and culture, are surprisingly unaware of their own needs and consumption patte...

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