The purpose of the present study is to evaluate mass fractions group noble metals (gold, silver, platinum, ruthenium, osmium, palladium, iridium, rhodium) in ores and host rocks Pioneer deposit (the Upper Amur Region, Russia) determine their migration activity hydrochemical classification ore by sizes. object primary oxidized ores, as well hosting this mineralization. employs method quantitativ...

On April 26, 1996, Public Law 104-134 was Chart 1 .-Payment volume, by type of disbursement, fiscal year 1997 enacted, requiring all Federal payments except tax refunds be issued electronically by January 2, 1999, thus beginning a new era in electronic N Federal tax 10.5% funds transfer (EFT). This legislation, the Debt Collection Improvement Act of 1996-part of the Omnibus Consolidated Resciss...

biogeochemistry is a useful tool for assessing geochemical dispersion patterns. sari gunay epithermal gold deposit was selected in order to assess the application of biogeochemical exploration for gold in northwestern iran. in this study, four sites were sampled in a profile perpendicular to mineralized vein with a control site two km far-off mineralized vein. a sample from each dominant plant ...

The term "Carlin-type" deposit has been applied to a number of low-grade, sedimentary rock-hosted gold deposits that have been discovered and brought into production in the western United States since the 1960s. Carlin-type deposits are characterized by replacement of carbonate and silty carbonate rocks by silica, pyrite, barite, various arsenic, mercury, antimony, and thallium minerals and by ...

The paper presents the results of comprehensive isotope geochemical (Re-Os, Pb and ?34S) study sulfide mineralization Morozkinskoye deposit. ore zones deposit are localized in syenite massif Mount Rudnaya, which is located within Central Aldan region (southern Yakutia). Gold represented by vein-disseminated or vein type manifested acidic low-temperature metasomatites – beresites (Qz-Ser-Ank-Py)...