The development history of striate miospores is considered. These miospores appeared first by the end of the Silurian-the beginning of the Devonian. During the existence period of striate miospores that lasted more than ...

X-ray phase analysis of clays is difficult because these materials generally consist of a mixture of different phases, i.e., mixed-layer minerals, individual clay minerals (non mixed-layer), and associated minerals, such ...

We present a new coherence functional to evaluate quantitatively the goodness of waveform fit between two time series as function of lag time. The proposed coherence measure is called phase cross-correlation (PCC) because ...

Phase equilibria analysis has been performed to elucidate whether ore-bearing Noril'sk-and poorly mineralized Lower Talnakh-type intrusions are co-mag-matic with the extremely Ni-, Cu-and PGEs-depleted and not depleted ...

Fluids released from subducting slabs induce partial melting of the mantle wedge above the slab, which in turn is responsible for arc volcanism at the Earth’s surface. The partially hydrated basaltic layer of the slab is ...

Experimental phase equilibrium data on compositions of coexisting pyroxenes in the quadrilateral enstatite-diopside-ferrosilite-hedenbergite have been used to model pyroxene solid solutions and to formulate pyroxene ...

Experimental data on phase relations in the CaCO 3 -MgCO 3 -FeCO 3 ternary by Goldsmith et al . (1962) are inconsistent with those of Rosenberg (1967). These inconsistencies cannot be reconciled by the pressure or temperature ...

Detailed phase relations have been determined within the systems Fe2O3-MgO-TiO2 and FeO-MgO-TiO2. Experiments were performed over the temperature interval 1173-1473 K by equilibrating pelletized, fine-grained oxide mixtures ...

Parameterizations of liquidus boundaries and solid solution in the CMAS + Fe system (Shi, 1992) have been employed to depict the liquidus equilibria relevant to the petrogenesis of angrites. Angrites are basaltic achondrites ...