نتایج جستجو برای: sulfidic mineralized zones

تعداد نتایج: 49927  

Journal: :geopersia 2012
soheila nourali hassan mirnejad

sar-kuh porphyry copper deposit is located 6 km southwest of the sar-cheshmeh copper mine, kerman province, iran. based on field geology, petrography and fluid inclusions studies, four alteration types have been identified in the sar-kuh area. early hydrothermal alteration formed a potassic zone in the central parts of mamzar granite/grano-diorite stock and propylitic alteration in its peripher...

Journal: :The Journal of Cell Biology 2004
Aparna Sreenivasan

In This Issue In This Issue Pulling on a cytokine he extracellular matrix (ECM) acts as a storage facility for tons of factors waiting to do business in the cell. Annes et al. (page 723) show that the ECM anchoring of one factor, the cytokine TGF-␤ , is essential for its activation. The anchoring may give cells something to pull against, with the pulling mediating the activation. Most TGF-␤ is ...

Journal: :Frontiers in microbiology 2015
Andreas H. Keller Kathleen M. Schleinitz Robert Starke Stefan Bertilsson Carsten Vogt Sabine Kleinsteuber

The population genome of an uncultured bacterium assigned to the Campylobacterales (Epsilonproteobacteria) was reconstructed from a metagenome dataset obtained by whole-genome shotgun pyrosequencing. Genomic DNA was extracted from a sulfate-reducing, m-xylene-mineralizing enrichment culture isolated from groundwater of a benzene-contaminated sulfidic aquifer. The identical epsilonproteobacteria...

Journal: :Evolution; international journal of organic evolution 2008
Michael Tobler Thomas J Dewitt Ingo Schlupp Francisco J García de León Roger Herrmann Philine G D Feulner Ralph Tiedemann Martin Plath

Divergent natural selection drives evolutionary diversification. It creates phenotypic diversity by favoring developmental plasticity within populations or genetic differentiation and local adaptation among populations. We investigated phenotypic and genetic divergence in the livebearing fish Poecilia mexicana along two abiotic environmental gradients. These fish typically inhabit nonsulfidic s...

Journal: :Ores and metals 2022

In the course of geological prospecting fulfilled with participation FGBI TsNIGRI within Chayangro ore cluster Dodykhta-Uryakh region in southeastern Baikal-Patom metallogenic province, Dzhalagun lode gold prospect field same name was studied and its economic significance has been proved. It substantiated that is closely similar to typical deposits Bodaibo sense formation phasing, character hyd...

Journal: :SSRG international journal of geoinformatics and geological science 2023

Exploration is a key fundamental step in the process of any uranium mining activity. Moreover, new deposit has been discovered context mine development. The objective present research studies to apply borehole redox mapping technique as guide for exploration sedimentary environment. Tarat formation study area Arlit divided into four units (U4, U3, U2, and U1) such Unit4 (U4) consists reduced gr...

Journal: :International Journal of Current Science Research and Review 2022

The productive mineralization of the Sheikhdzheili-Zengiboba area is associated with metamorphogenic transformations rocks Urusai, Karauzyak, Kuyanchik, Sheikhdzheili suites, metamorphosed under conditions green schist facies. mineralized zones site are confined to narrow faults in tectonic northeast and northwest directions. main form manifestation gold-bearing small steeply dipping veins, len...

Journal: :Science 2009
Andrey Bekker Mark E Barley Marco L Fiorentini Olivier J Rouxel Douglas Rumble Stephen W Beresford

Some of Earth's largest iron-nickel (Fe-Ni) sulfide ore deposits formed during the Archean and early Proterozoic. Establishing the origin of the metals and sulfur in these deposits is critical for understanding their genesis. Here, we present multiple sulfur isotope data implying that the sulfur in Archean komatiite-hosted Fe-Ni sulfide deposits was previously processed through the atmosphere a...

فلاحت, رضا, محمدزاده, محمد جعفر,

The alka line and calc-alkaline volcanic activities in Mianch have reactivated the hydrothermal so lutions, resulting in the fonnation of epithermal mineralization in the region. The mineralized zone trending NWSE, and has been affected by NE-SW bended and folded structures. The precious and base metals mineralization are confined to structurally hended zone. Landsat-7(ETMJ data were used ...

Journal: :Ground water 2001
J Holocher V Matta W Aeschbach-Hertig U Beyerle M Hofer F Peeters R Kipfer

The hydrogeological system of an ecologically sensitive alpine floodplain in the Valle di Blenio, Switzerland, was investigated using hydrochemical and 3H-3He dating methods. Water samples from six wells and from different surface locations were analyzed. The analysis of the concentrations of major ions in conjunction with age determination by the 3H-3He-method allowed the main hydrological pro...

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