Browsing ELibrary by Subject "EARTH"
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Browsing ELibrary by Subject "EARTH"
Now showing items 1-8 of 8
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(2003)A new Earth Scientist's Periodic Table of the Elements and Their Ions presents the naturally occurring charged species commonly encountered by geoscientists, as well as elemental forms, and it is organized by charge. The ...
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(2001)Using trace element ratios with a common reference to a refractory element, we have shown that carbonaceous chondrites define a straight line in every diagram including the semi-volatile and volatile elements with the ...
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(2002)These last 10 years, numerical models of mantle convection have emphasized the role of the 670 km endothermic phase change in generating avalanches that trigger catastrophic mass transfers between upper and lower mantle. ...
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(2003)To reveal chemical fractionation during porcellanitization, we have examined chemical compositions of porcellanite clasts and their host sediments from DSDP sites 164 and 166. Porcellanite is an intermediate product during ...
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(2001)The depletion of moderately volatile elements in planetesimals and planets is generally considered to be a result of removal of hot nebula gases. This theory can be tested with Sr isotopes. The calculated initial 87Sr/86Sr ...
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(2006)High-precision lithium (Li) isotope data are reported for samples from the Earth, Moon, Mars and Vesta and provide evidence of broadly similar compositions that are slightly heavy relative to those of chondrites. Mare ...
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(1996)Redistribution of mass both on and within the Earth due to the direct and indirect effects of the late Pleistocene glaciation-deglaciation process changes the principal moments of inertia of the planet, and consequently ...
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THE INFLUENCES OF SURFACE TEMPERATURE ON UPWELLINGS IN PLANETARY CONVECTION WITH PHASE TRANSITIONS (1998)The importance of surface temperature for mantle convection appears with the presence of adiabatic heating and cooling and the release and consumption of latent heat in the presence of phase transitions. For some planetary ...
Now showing items 1-8 of 8