A new gem corundum occurrence has been discovered in the Naryn-Gol Creek placer of Dzhida volcanic field (Russia). In this deposit, sapphire associates with large crystals garnet, spinel, augite, olivine, enstatite, ilmenite, Ti-magnetite, and alkali feldspar. Such a combination minerals is typical for deposits associated basalts widely distributed Southeastern Asia Australia. We have also foun...

Ensifer adhaerens L18, isolated from potassium feldspar mining area soil, was found to be capable of solubilizing K from an insoluble K-bearing mineral source. Here, we report the draft genome sequence and annotation of the feldspar-solubilizing bacterium Ensifer adhaerens L18. These data provide the basis to investigate the relative impact of bacteria in feldspar solubilizing and the molecular...

Late Wisconsin till of the Cuba Moraine in Ohio consists of sediment contributed by local Paleozoic bedrock and by the igneous and metamorphic rocks of the Canadian Precambrian Shield. Feldspar in this till is derived predominantly from the Grenville and Superior structural provinces of Canada which are 1.07 b.y. and 2.70 b.y. old, respectively. Rb-Sr provenance dates of feldspar in the — 18 +3...

The Sungun porphyry copper deposit is located in northwestern Iran and is associated with diorite/granodiorite to quartz-monzonite of Miocene age, which intruded Eocene volcanosedimentary and Cretaceous carbonate rocks. Copper mineralization was accompanied by both potassic and phyllic alteration. Three main mineralization related alteration episodes (potassic, transition, and phyllic alteratio...

Kashmar granitoids of Taknar zone, in north part of Lut block, intruded into volcanic rocks and consist of granites, granodiorites, monzodiorite and gabbrodiorites. They are composed of mainly plagioclase, alkali-feldspar, quartz, amphibole, biotite and pyroxene minerals. Harker diagram variation, including negative correlations CaO, MgO, FeO, TiO2 and V and positive correlations K2O, Rb, Ba, a...

Abstract The Wadi El-Hima Neoproterozoic I- and A-type granites in the Southern Eastern Desert of Egypt are rich garnets (up to 30 vol%) cut by NW–SE strike-slip faults, as confirmed from structure lineament extraction maps. These mineralized garnet mineralization zones can be successfully discriminated using remote sensing techniques. Spectral angle mapper matched filtering techniques highly e...