Mueller, S. and Bonjer, K. P. (1973), Average structure of the crust and upper mantle in East Africa , Tectonophysies 20 , 283.MUELLER,S. and K.P. BONJER,Average structure of the crust and upper mantle in East Africa, Tectonophysics, 20, 283-293, 1973....
The use of laboratory velocity data for estimating temperature and partial melt fraction in the low-velocity zone: Comparison with heat flow and electrical... Peridotite is widely considered to be the dominant component of the upper most mantle. Seismic velocities of a dry peridotite determined in...
Since 3 Ma, however, xenoliths from the upper mantle contain spinel peridotite whose pressure-temperature conditions follow an asthenospheric adiabat. Thus, several authors, beginning with Ducea and Saleeby, have inferred removal of the ecslogitic and cooler peridotitic layers. Elegant theory by ...
These temperature observations make it clear the new normal will be systematically rising temperatures, not the stability of the last 100 years. Thetraditional definition of climateis the 30-year average of weather. The fact that – once the official records are in for February 2015 – it will ...
The oxygen vacancy ordering process in the system CaTiO3-CaFeO2.5 has been studied as a function of composition and temperature. The samples (CaTi1x Fe x O... A.I.Becerro,C.McCammon,F.Langenhorst,... - 《Phase Transitions》 被引量: 71发表: 1999年 Subsolidus phase relations and perov...
Average structure of the crust and upper- mantle in East Africa, Tectonophysics, 20, 238-253.Mueller, St, & Bonjer, K., 1973. Average structure of the crust and upper mantle in East Africa, Tectono- phys., 20,283-293.Mueller, S. & Bonjer, K. P., 1973. Average structure of the...
Phase relations and equations of state of ZrO 2 under high temperature and high pressure The phase relations and pressure volume dependences of ${\\mathrm{ZrO}}_{2}$ under high pressure and high temperature have been investigated by means of in situ observation using multianvil-type high-pressu...
Summary. Global and regional structures of the Earth's mantle are studied. Original phase velocities and Q 1 of Rayleigh waves are converted to equivalent free oscillation periods and Q 1 . Global average upper mantle shear velocity models are derived from the inversions of the world-wide average...
Considered magmas demonstrate distinct positive correlation between MgO content and homogenization temperature, practically coinciding with that of MOR magmas. Modeling of phase equilibria revealed widening of crystallization field of olivine in the magmas of subduction zones compared to MOR magmas. This can...
The value of the power law exponent, n, and the strength of the lithosphere depend on: the depth and stress difference at the brittle-ductile transition, the temperature at the Moho, and the geothermal gradient. In the range of vertically-integrated stress between 10 12 and 10 13 N m ...