The gas generative potential of the Cretaceous Cameo coal in the Piceance Basin, northwestern Colorado, was evaluated quantitatively by sealed gold tube pyrolysis. TheH/C andO/C elemental ratios show that pyrolyzed Cameo coal samples follow the Van Krevelen humic coal evolution pathway, reasonably simulating natural coal maturation. Kinetic parameters (activation energy and frequency factor) fo...

There are some 60 gold-mining sites in the Bento Gomes River basin (Mato Grosso), at the border of the Mato Grosso Pantanal (Swamp), where mercury is used to agglutinate fine gold particles through amalgamation. During burning of the amalgam to release the gold, mercury vapor is lost to the atmosphere, since closed systems for mercury recovery are not always used. This study shows the results o...

A comprehensive hydrogeological understanding of the deep Upper Jurassic carbonate aquifer, which represents an important geothermal reservoir in South German Molasse Basin (SGMB), is crucial for improved and sustainable groundwater resource management. Water chemical data environmental isotope analyses ?D, ?18O 87Sr/86Sr were obtained from 24 wells coupled with a few noble gases (3He/4He, 40Ar...

introduction the fanuj titaniferous placer deposits are located 35 km northwest of the fanuj, sistan and baluchestan province (1) . the studied area comprises a (2) small part of the late cretaceous fanuj-maskutan (rameshk) ophiolite complex (arshadi and mahdavi, 1987). reconnaissance and comprehensive exploration programs in the fanuj district (east of the 1:100000 fanuj quadrangle map,yazdi, ...

1. Introduction Thompson-Okanagan-Cariboo is an administrative region in south-central BC, established after the province reorganized its natural resource agencies in 2010. Mining predates Confederation and today, the region is home to fi ve of BC's largest metal mines, several industrial mineral mines, and many small placer operations, gravel pits, and rock quarries. power), and skilled worker...

The recently collected fauna of Armantes 1A in Chron C5Br of the Armantes section necessitates reinterpretation of the previous bioand magnetostratigraphical correlations between the Armantes and Vargas sections (Calatayud–Daroca Basin, Central Spain) [W. Krijgsman, M. Garcés, C.G. Langereis, R. Daams, J. van Dam, A.J. van der Meulen, J. Agustı́, L. Cabrera, A new chronology for the Middle to La...