We have studied optical properties (in optic and petrographic microscopy) of mineral particles (diameter > 1 μm) deposited on the surface of a small (≈ 1.4 mm height, 610 μm wide) sticky tape triangle corresponding to the Face area of the Turin Shroud (TS). All these particles were studied by scanning electronic microscopy (SEM) and their elemental compositions were analysed by X-ray microfluor...

The coastal sabkha in Ras Gemsa, Red Sea coast with its colonizing microbial mats and biofilms was investigated. The sabkha sediments consist mainly of terrigenous siliciclastic material accompanied by the development of evaporites. Halite serves as a good conduit for light and reduces the effect of intensive harmful solar radiation, which allows microbial mats to survive and flourish. The micr...

Ab&r&-Sulphur isotope abundances of thirty-nine specimens of seventeen meteorites are reported. The resultril show again the remarkable constancy of the sulphur isotope ratios for meteorites of all types. However, differences in the SBa/Sa* ratios of 0.4 %a would appear to be significant. The Ssz/P4 ratio for meteorites is discussed as a possible base level from which fr~tion&tion in the earth’...

The main goals of this study were to increase the data quality of the SPOT XS imagery for diVerentiation of several rock units and to expose the structural features of the southern part of the Sivas Tertiary Basin. With these aims, both edge enhancement and histogram equalized stretching Ž lters were applied to SPOT XS imagery of the southern part of the basin. Various geological observations a...

Compressive and extensive horsetails are common structures on the lateral termination of brittle strike-slip faults, which forms within the shallow continental crust. Here we report another possibility, the lateral termination of a brittle strike-slip fault in a formation-parallel low-temperature ductile shear zone within sulphatic, gypsum-dominated evaporites. In the Southern Alps, over a dist...

Complex organic aerosols in the upper atmosphere of Saturn's moon Titan reach troposphere and surface, where a methane (CH4)-based hydrological cycle occur. Previous studies have assumed no interactions between liquid CH4, although dissolution low-molecular-weight photochemical products CH4 has been considered. Here we report experimental results soaking laboratory analog (so-called tholin) Tit...

The North Pyrenean Zone corresponds to the palaeopassive margin of Iberia plate, at foot which subcontinental mantle was exhumed during Albian times. Rare bodies rocks associated with strongly sheared lenses continental crust are scattered among metasediments. Significant fluid flow occurred along a major décollement basement–Trias interface in Urdach massif (Chaînons Béarnais). Fluids broad ra...

Abstract Kuwait has proven conventional oil reserves of about 100 billion barrels which makes it one the major oil-producing countries worldwide. Most this reserve is found in Cretaceous and Jurassic with minor quantities Paleogene sedimentary successions. hydrocarbon production comes from siliciclastic Burgan Formation most important reservoir Kuwait. The Lower exhibit good quality source rock...