Dissolution of pyrochlore and microlite in alkaline, sub-aluminous and high-aluminous granitoid melts
نویسندگان
چکیده
منابع مشابه
Crystal chemistry of hydration in aluminous orthopyroxene
Hydrogen incorporation in aluminous orthopyroxene may control the generation of melt and dominate the seismic properties at the base of the Earth’s lithosphere. To clarify the substitution mechanism of H, we have synthesized, characterized, and refi ned the crystal structure of this potentially signifi cant variant of orthopyroxene. The experimentally produced crystals are small needles up to a...
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Sound velocities and elasticity of aluminous MgSiO3 perovskite: Implications for aluminum heterogeneity in Earth’s lower mantle
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Water solubility in aluminous orthopyroxene and the origin of Earth's asthenosphere.
Plate tectonics is based on the concept of rigid lithosphere plates sliding on a mechanically weak asthenosphere. Many models assume that the weakness of the asthenosphere is related to the presence of small amounts of hydrous melts. However, the mechanism that may cause melting in the asthenosphere is not well understood. We show that the asthenosphere coincides with a zone where the water sol...
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ژورنال
عنوان ژورنال: Доклады Академии наук
سال: 2019
ISSN: 0869-5652
DOI: 10.31857/s0869-56524896626-630