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...

A strategy for establishing the supply chain of tin, which is used in various industries, necessary because tin’s and demand are highly dependent on a few countries. Focusing Mongolia as resource-rich country, this study examines current state tin mineral resources characteristics mineralization according to tectonic environment. The magmatic activity that occurred from Late Paleozoic Mesozoic ...

Abstract Three distinct paragenetic and compositional types of tourmaline were described from the Velence Granite surrounding contact slate. Rare, pitch-black, disseminated I (intragranitic tourmaline) occurs in granite, pegmatite, aplite; very rare, black to greenish-gray, euhedral II (miarolitic miarolitic cavities pegmatites; abundant, gray, brown yellow or even colorless, acicular III (meta...

The southern Ferkessédougou batholith in the center-west of Côte d’Ivoire is study area. geology this area includes granitoids (granodiorite, two-mica granite, biotite granite and muscovite granite) metasediment panels. Petrographic studies were coupled with geochemical analyzes on whole rock order to provide new elements structural evolution portion West African craton. data show that basement...

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...

The Mesozoic Mashhad granitoid plutons have intruded into ophiolite complexes, meta-sediments and pyroclastics in the Binalood region, located SW of Mashad city in the NE part of Iran. Based on petrography and geochemistry, the Mashhad granitoids have been classified into 1) grey granite, 2) pink granite, 3) muscovite granite, 4) granodiorite and 5) pegmatite and quartz veins. Granitoids show t...

The evaluation of nano-particle based products to protect granite surfaces from water income is presented in this paper. Wettability, water absorption, drying behaviour and water vapour transfer were considered as the most relevant parameters for this evaluation. The effect of the application methods on the final performance was also tested. The results allow to consider that nanostructured pro...

Two methods using nujol and hexachloro-butadiene mulls are described to analyse the water content of powdered granite samples. The nujol mull analyses were carried out on a Unicam SP Ioo spectrometer using the silica content of the rock as an internal standard. The hexachlorobutadiene mull analyses were done by a twin-path Unicam SP 2oo spectrometer, using hexachlorobutadiene as the internal st...

Submission Details 1. Title: VSIPL++: Parallel Performance 2. Authors: • Mr. Mark Mitchell CodeSourcery, LLC 9978 Granite Point Ct Granite Bay, CA 95746 +1.916.791.8304 (voice) +1.916.914.2066 (fax) [email protected] USA citizenship • Dr. Jeffrey D. Oldham CodeSourcery, LLC 144 Wyandotte Dr San Jose, CA 95123-3727 +1.408.578.5684 (voice) +1.408.578.5684 (fax) [email protected] USA cit...

The variation in the volume of rock removed when a water jet traverses over a sample of Barre Granite is shown to vary with the angle at which the sample is cut relative to the orientation of the main deposit. For example where the jet impacts perpendicular to a microfissure plane a channel up to 10 times the volume is cut as when the jet is traversed along the microfissure plane. A correlation...