The Melting Points of Rock-forming Minerals

Wettability of Common Rock-forming Minerals in a Co2-brine System at Reservoir Conditions

Wettability plays a major role in subsurface fluid migration, however little empirical evidence besides qualitative relative permeability data in this context is known about the characteristics of carbon dioxide (CO2). Core analysts use several methods combined for use in the oil industry, including the USBM (U.S. Bureau of Mines) method and Amott test, supported visually by images from an envi...

On Experimentally and Naturally Produced Shock Effects in Rock Forming Minerals

Micro-Thermonuclear Plasma Tunneling by Rock Melting

Standard drilling has limits as at some depth the pressures and temperatures force the drilled opening tight when the drill is lifted.This paper proposes a reliable and rapid method of penetration of rock masses by melting all or part of the rock face and penetrate therein, cool the resulting glassy tube to be a stabilized liner. The methods proposed to heat the tip of the melting element inclu...

Precise Mössbauer milliprobe determination of ferric iron in rock-forming minerals and limitations of electron microprobe analysis

For estimations of P-T conditions of igneous and metamorphic rocks, Fe31 in coexisting minerals is either assumed to be zero or is calculated from electron microprobe analyses (EMPA) based upon stoichiometry and charge balance. Geothermobarometers that involve Fe21-Mg21 exchange can be significantly affected by either neglecting Fe31 or using incorrect values. Ratios of Fe31/SFe in garnet and c...

Shock-induced superheating and melting curves of geophysically important minerals

Shock-state temperature and sound-speed measurements on crystalline materials, demonstrate superheating-melting behavior distinct from equilibrium melting. Shocked solid can be superheated to the maximum temperature, Tc′ . At slightly higher pressure, Pc, shock melting occurs, and induces a lower shock temperature, Tc. The Hugoniot state, (Pc, Tc), is inferred to lie along the equilibrium melti...