Results 121 to 130 of about 43,981 (268)
Geochemistry and petrology of primitive achondrite meteorites LEW 88280, MAC 88177, ALHA 81187, EET 84302, and LEW 88663 [PDF]
Primitive achondrites are meteorites that have mineral and bulk chemical compositions similar to the most primitive meteorites (chondrites) but have textures similar to more evolved meteorites (achondrites).
Field, Stephen W.
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The 1723 AD violent Strombolian and phreatomagatic eruption at Irazu volcano (Costa Rica) [PDF]
, 2013 The largest of the recorded historic eruptions at Irazú volcano began on February 16, 1723 and lasted until at least December 11. We here critically examine deposits of this eruption exposed on the summit of Irazú. Our reconstruction of the eruption is
Alvarado, G. E., Schmincke, Hans-Ulrich
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First disk-resolved spectroscopy of (4) Vesta
, 2009 Vesta, the second largest Main Belt asteroid, will be the first to be explored in 2011 by NASA's Dawn mission. It is a dry, likely differentiated body with spectrum suggesting that is has been resurfaced by basaltic lava flows, not too different from the
Carry, Benoît +3 more
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, 2018 Understanding the compaction and differentiation of the planetesimals and protoplanets from the Asteroid Belt and the terrestrial planet region of the Solar System requires a reliable modeling of their internal thermal evolution.
Gail, Hans-Peter, Trieloff, Mario
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Petrologic evidence for pressure-temperature conditions and recent reheating of andesitic magma erupting at Soufriere Hills Volcano, Montserrat, WI [PDF]
, 1998 Andersen +28 more
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Journal of Economic Geology, 2016 Introduction The study area is located in the Shurab area that is about 50 Km Southeast of Qom. Volcanic rocks of the Shurab area have basaltic composition that is associated with salt and marl units.
Somayeh Falahaty +5 more
doaj
An Evaluation of Garnet – Clinopyroxene Geothermometer
The garnet-clinopyroxene pair commonly found in upper amphibolite, granulite, and eclogite facies assemblage, as well as in garnet peridotites serves as a basic tool to estimate the equilibrium temperature for these metamorphic rocks. Several empirical and experimental calibrations for garnet-clinopyroxene thermometers have been proposed in the last ...
Harel Thomas, Haritabh Rana
openaire +1 more source
Pyroxenes and olivines in crystalline rocks from ocean of storms [PDF]
Determination of petrology and deformational state of pyroxenes and olivines in lunar rocks returned by Apollo 12 ...
Ave'lallemant, H. G. +3 more
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Mingling and mixing features in basaltic Andesites of the Eastern Cordillera (Central Andes, 24°s): a petrographic and microanalytical study [PDF]
, 2006 The basaltic andesites of the Diego de Almagro volcanic complex (Central Andes, 24°S, 66°W) were erupted during Late Miocene at 300 km from the active arc, in the Eastern Cordillera, at the easternmost end of an important strike-slip structure, the ...
Gioncada, Anna +4 more
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