The Cuonadong Sn–W–Be polymetallic deposit in the Himalayan leucogranite belt is a representative hydrothermal deposit. role of fluid exsolution directly from magma and reaction with surrounding rocks for ore-forming element enrichment still controversial. Tourmaline significant B-bearing mineral deposit, its geochemical B isotopic signatures can record source evolution fluid. Two types tourmal...

The origin of the Proterozoic Choghart iron oxide deposit in the Bafq mining district of Central Iran has been the subject of a long-standing dispute. Some authors believe that it was formed from magma, while others suggest metasomatic replacement of preexisting rocks. The present study on the basis of new oxygen isotope, REE and geochemical data concludes that neither of these two hypotheses c...

It is shown that the giant Sikhote-Alin and Pamir deposits of boron are associated with fragments boron-bearing evaporite strata paleoceanic atolls in subduction melange. Ore formation relates both to situ transformation at Ak-Arkhar deposit mobilization redeposition some distance away from source course intensive post-accretionary fluid-magmatic reworking melange Dalnegorskoe deposit.

aim : to investigate if hepatic iron content influences the response to therapy in patients with chronic hepatitis c or b. background : it seems that the presence of elevated body iron stores and, in particular, elevated hepatic iron levels, is one of the strongest predictors of resistance to interferon treatment for chronic hepatitis c or b. patients and methods : two hundred and one patients ...