The article touches upon the technology of basalt fiber manufacturing and prospects of its use in dental practice. Two kinds of construction using basalt fiber have been proposed. The first one is a splinting construction for mobile teeth and the second one is the reinforced base for removable plate-denture. The work presents the results of the investigation of physical and mechanical propertie...

Abstract The Proterozoic Chotanagpur Granite Gneiss Complex (CGGC) at the northern boundary of Central Indian Tectonic Zone (CITZ) eastern shield preserves relics fossilized oceanic back-arc crust. We describe field, petrographical and geochemical characteristics mafic rocks comprising pillow basalts dolerites from Bathani area fringe CGGC, India. consist plagioclase feldspar, hornblende, opaqu...

Continental flood basalts and mid-ocean ridge (MOR) tholeiitic basalts have distinctly different 14 3 Ndf1 44 Nd which may permit a priori distinctwn between '"continental" and "oceanic" igneous rocks. Initial 14 3 NdJI 4 4 Nd of continental igneous rocks through time fall on a Sm/Nd evolution curve with chondritic REE abundance ratio. These observations indicate that many continental igneous r...

The Kermanshah ophiolite complex is a part of the Mediterranean–Zagros–Oman Tethyan ophiolites, located in the structural–tectonic zone of western Iran in the northern part of the Zagros main thrust. Doleritic sheeted dykes are well exposed within the ophiolite in the south of Sahneh. These dykes contain high MgO, Na2O, low TiO2 (2O5, and K2O contents, and high FeOt/MgO and LILE/HFSE ratios. Th...

Smith, D. R. and Leeman, W. P., 1993. The origin of Mount St. Helens andesites. J. Volcanol. Geotherm. Res., 55: 271-303. Mount St. Helens volcano has intermittently produced mainly dacitic products but occasionally erupted a more diverse suite of lavas including basalts and andesites. Petrogenetic relations between these magmas provide insight into the dynamics of the subjacent magma system. M...

changes in moisture content and temperature can perturb both stiffness and strength and as such the impact resistance of composite structures. in this paper, the pre-notched basalt fibre reinforced epoxy (bfre) composite specimens are studied under charpy impact loads in order to investigate the changes in impact energy absorption (fracture toughness) with different kinds of aging conditions. t...

The basalt fiber is a promising reinforcing fiber because it has a relatively higher tensile strength and a density similar to that of a concrete matrix as well as no corrosion possibility. This study investigated experimentally the bonding properties of basalt fiber with cementitious material as well as the effect of fiber orientation on the tensile strength of basalt fiber for evaluating basa...

Basalt outcrops are significant features in the Western United States and consistently present challenges to Natural Resources Conservation Service (NRCS) soil mapping efforts. Current soil survey methods to estimate basalt outcrops involve field transects and are impractical for mapping regionally extensive areas. The purpose of this research was to investigate remote sensing methods to effect...

Abstract Hawaiian volcanoes record 6 Ma of potentially deep mantle chemistry and form two parallel volcanic chains that are geochemically unique, named Loa Kea. erupt lavas with isotopically enriched compositions thought to reflect the presence recycled material in source plume. Variations stable thallium (Tl) isotopes have been used trace pelagic ocean sediment from subduction eruption arc int...

The 1783–1784 AD fissure eruption of Laki (Iceland) produced 15 km of homogeneous basaltic lavas and tephra that are characterized by extreme (3‰) O-depletion relative to normal mantle. Basaltic tephra erupted over the last 8 centuries and as late as in November 2004 from the Grímsvötn central volcano, which together with Laki are a part of a single volcanic system, is indistinguishable in δO f...