Gold bearing veining linked to transcrustal fault zones in the Transantarctic Mountains (northern Victoria Land, Antarctica)" (2007). Related Publications from ANDRILL Affiliates. Paper 20. Summary Gold mineralization is associated with the paleo-Pacific margin of Gondwana and is related to processes of subduction/accretion and magmatism. Northern Victoria Land (Antarctica) was part of this mar...

Arsenic is the 20th most abundant element in the earth's crust at a level of about 2 ppm. It is a constituent of over 300 minerals and is commonly found in non-ferrous ores such as copper, lead, zinc, gold and uranium. Efficient separation of arsenic minerals from other sulphide minerals is of great importance for the metallurgical performance of flotation processes. This work was undertaken to...

A new organo-soluble [60]fullerene hexaadduct bearing twelve thiocyanate functions has been synthesized and successfully used as a stabilizing/assembling agent to assemble homogeneous sub-3 nm gold nanoparticles into extended tridimensional networks.

isotopic and microthermometry results from sheikh-darabad cu-au indices in mianeh region, east-azarbaijan province, indicate cenozoic post-magmatic activities with developed adularia facies through an extended and neogene related alteration that is given rise to occurring silica vein systems as the main hosting locations for epithermal mineralization. the research evidence also has been coincid...

(N-heterocyclic carbene)gold(I) alkynyls and organic azides have undergone cycloadditions in water-t-butanol mixtures with copper metal as the pre-catalyst to give new gold(I) triazolyls in high purity. Substrate tolerability was outlined for organoazides bearing a range of functional groups, and branching alpha to the azide moiety. All products are validated by combustion analysis or high-reso...

1,6-Enynes bearing OR groups at the propargyl position generate α,β-unsaturated gold(I)-carbenes/ gold(I) stabilized allyl cations that can be trapped by alkenes to form cyclopropanes or 1,3-diketones to give products of α-alkylation. The best migrating group is p-nitrophenyl ether, which leads to the corresponding products without racemization. Thus, an improved formal synthesis of (+)-schisan...