نتایج جستجو برای: primary gold mineralization
تعداد نتایج: 732825 فیلتر نتایج به سال:
Background. In this paper, the authors aim to reveal localization patterns of gold mineralization in Phuok Son region Central Vietnam, which formed a Proterozoic-Cambrian metamorphic complex zone Late Paleozoic Benzhang–Queshon granite block. Aim. To determine Phuoc area, Vietnam. Materials and methods. The research was based on geological materials, as well mine working appraisal data. materia...
The Jiadi gold deposit, situated in the Southwestern region of Guizhou, is a large-scale, recently discovered, basalt-hosted, and fine-grained disseminated deposit. This study has unveiled that tectonic deformation deposit can be categorized into four stages: Late Paleozoic crustal uplift brittle (D1-deformation) stage; Early Yanshanian NW-trending compressive ductile (D2-deformation) NS-trendi...
We studied the mineralization and sulfur isotopic composition of sulfides gold–palladium ores in olivine clinopyroxenites from Dzelyatyshor massif made up a continuous layered series rocks: olivine-free clinopyroxenite–olivine clinopyroxenite–wehrlite. The primary igneous layering rocks, manifested as different quantitative ratios clinopyroxene them, controls local trends variability chemistry ...
Intact soil cores from three adjacent sites (Site A: grazed, Site B: fenced for 4 years, and Site C: fenced for 24 years) were incubated in the laboratory to examine effects of temperature, soil moisture, and their interactions on net nitrification and N mineralization rates in the Inner Mongolia grassland of Northern China. Incubation temperature significantly influenced net nitrification and ...
in the present work, a simple and sensitive method was developed for determination of morphine and heroin using gold nanoparticles as resonance rayleigh scattering (rrs) and colorimetric technique’s probe. synthesized gold nanoparticles by sodium citrate reduction method have a negative charge layer on their surfaces because of self-assembled citrate anions on their surface. binding of morphin...
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