Johnson-Holmquist constitutive model for brittle materials, coupled with a crack softening model, is used to describe the deviatoric and tensile crack propagation beneath impact crater in granite. Model constants are determined either directly from static uniaxial strain loading experiments, or indirectly from numerical adjustment. Constants are put into AUTODYN-2D from Century Dynamics to simu...

105 Abstract: Origin of A-type alkali feldspar granites is currently the subject of a world-wide debate. Contrasting hypotheses have been proposed, which range from an entirely crustal origin to an almost complete mantle derivation. A-type alkali feldspar granites belong to either unimodal granite (rhyolite)-dominated association, or bimodal gabbro (basalt)-granite (rhyolite) suite. It is argue...

The Solstad copper deposit, located in SE Sweden, is hosted by a quartz-rich rock sliver surrounded granite belonging to the 1.8 Ga Transscandinavian Igneous Belt. Ore petrographic studies have revealed number of previously unrecognized opaque phases, including several Co selenides and tellurides. Based on an situ U-Pb investigation zircons from mineralized sample, it suggested that detrital or...

The northern flank of the North China Craton (NCC) hosts a linear zone gold, molybdenum, silver, lead, and zinc polymetallic ore deposits. Among these, Yingfang Pb-Zn-Ag deposit is located in central part Yanshan–Liaoxi metallogenic belt (YLMB) which extends for approximately 1000 km forms major mineralized zone. In this study, we characterize mineralization trace genesis based on new sulfur le...

Antimony deposits contain little Sn, whereas Sb and Pb are not the principally contained metal of granite-related Sn deposits. The Danchi Sn-metallogenic ore belt (DSOB) in southwestern China is characterized by Sn-Sb-Zn-Pb co-enrichment, yet triggers poorly constrained. Beixiang deposit southern DSOB consists stage I Sn-Zn II Sb-Pb-Zn mineralization. Here, we analyzed cassiterite U-Pb age, flu...

Granite-hosted magmatic-hydrothermal mineral deposits are major sources of Cu, Mo, Sn, Li, and W, originating via mineralizing fluids exsolved from volatile-saturated magmas. We show how trace elements in zircon sampled the granite-hosted Zaaiplaats tin deposit, Bushveld Complex, preserve a record both enrichment incompatible metals during magma fractionation those arising mineralization proces...

The study determined the bond work index of Begaga gold mineral deposit Zamfara State Nigeria using Berry and Bruce modified method. Sample was sourced random sampling Reference (Granite) known weight 15.13Kwh/ton ground for thirty minutes at a particular speed power consumed from rating ball mill. An identical Bagega whose to be in same mill under condition as that reference mineral. Size anal...

The weathering of Stone Mountain Granite (adamellitc) forms kaolinite, endcllite, allophane and gibbsite of which kaolinite is the most stable. Bulk density ranges from 2.65 in fresh rock to a minimum of 1.48 in saprolite. It is a good index of weathering. Abrasion pH ranges from 5.0 in saprolite to 9.3 in fresh rock, and is direct]y related to bulk density and the amount of clay mineral. Among...

Base metal mineralization at the Baal Gammon and Isabel deposits of Herberton Mineral Field (HMF) is hosted in metamorphosed greywacke beds Hodgkinson Formation, which were intruded by granite, porphyry dykes overlain volcanic rocks Kennedy Igneous Association during Carboniferous Permian. The tin deposit a silicified, chlorite-altered, quartz-feldspar (UNA Porphyry). polymetallic veins hosting...