Sampling of any geological formation needs comprehensive knowledge of the rock genesis, through the dia- and epigenetic processes (secondary alterations) up to the physical properties and the chemical and mineralogical composition of the rock. Well established theoretical knowledge should be complemented by practical experience. Besides the geological exploration of a raw material, its represen...

Effects of CO2 adsorption upon coal deformation during geological sequestration Kan Yang, Xiancai Lu*, Yangzheng Lin, Alexander V. Neimark* 1 State key lab for mineral deposit research, School of earth sciences and engineering, Nanjing University, 22 Hankou Road, Nanjing, 210093 P. R. China 2 Rutgers University, Chemical and Biochemical Engineering, 98 Brett Road, Piscataway, NJ 08854, United S...

We show that 85% of variation in total organic carbon can be explained by mineral surface area in a black shale deposit from two locations in the late Cretaceous Western Interior Seaway, United States. This relation suggests that, as in modern marine sediments, adsorption of carbon compounds onto clay mineral surfaces played a fundamental role in the burial and preservation of organic carbon. O...

The effects of two lubricating oils on the trophic diversity of a nematode community of a Tunisian lagoon were investigated in a microcosm experiment. Sediment from a pristine site in Ghar El Melh lagoon (Western Mediterranean) was treated with mineral oil (Mobil 20 W-50), a synthetic lubricant (Mobil 0 W-40), the same two lubricants after use in a vehicle. Univariate analysis showed significan...

Orpiment, getchellite and stibnite from Zarshuran deposit, NW Iran, exhibit extensive As-Sb substitution. There are four known minerals along As2S3-Sb2S3 join, i.e. orpiment (As2S3), Wakabayashilite [(As,Sb)20S30], getchellite (AsSbS3) and stibnite (Sb2S3). Extensive mineralogical studies by scanning electron microscope (SEM) and electron probe micro-analyzer (EPMA) indicate that getchellite fr...

the determination of the ultimate pit limit (upl) is the first step in the open pit mine planning process. in this stage that parts of the mineral deposit that are economic to mine are determined. there are several mathematical, heuristic and meta-heuristic algorithms to determine upl. the optimization criterion in these algorithms is maximization of the total profit whilst satisfying the...

Article 26 sets out detailed requirements of the license applications for mining minerals from deposits. These include, in particular, information about mineral deposit, way and size mining, t he r ights to use land a nd right geological information. A n appendix such application is “deposit development plan”, determining rational deposit environmental protection. Similar apply underground non-...

Remote sensing plays an important role in mineral exploration. One of its proven applications is extracting host-rock lithology and alteration zones that are related to porphyry copper deposits. An Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) was used to map the Baogutu porphyry deposit alteration area. A circular alteration mineral zoning pattern was clearly observed ...

The development of the World Wide Web has revolutionised research and education in many scientific fields. Of particular interest to geo-scientists is the ability to link animated 3-dimensional (3D) models to Web documents, a facility that has arisen out of developments in the field of advanced computer graphics, computer animation and virtual reality. The use of the Virtual Reality Modeling La...