Lunar Mg suite: Thermobarometry and petrogenesis of parental magmas
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چکیده
منابع مشابه
Petrogenesis of Mount St. Helens Dacitic Magmas
The most frequent and voluminous eruptive Kurasawa, 1983], (4) partial melting of the lower crust products at Mount St. Helens are dacitic in composition, [e.g., Grant et al., 1984; Reid and Cole, 1983], and (5) although a wide variety of magma types (basalt to formation of compositional gradients in response to rhyodacite) is represented. To address the petrogenesis of convective and diffusive...
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Lunar meteorite EET 96008 is a fragmental breccia that predominantly consists of basaltic mineral clasts (0.5–2 mm), along with minor lithic fragments and breccia clasts. The matrix consists mainly of smaller mineral fragments ( 0.5 mm), bound by glassy cement, the majority of which are pyroxene and plagioclase. The pyroxene possesses extensive exsolution lamellae. These lamellae, up to 1 m in ...
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Halliday, A.N., Davidson, J.P., Hildreth, W. and Holden, P., 1991. Modelling the petrogenesis o1 high Rh/Sr silicic magmas. In: A. Peccerillo (Guest-Editor), Geochemistry of Granitoid Rocks. Chem. Geol., 92: 107-114. Rhyolites can be highly evolved with Sr contents as low as 0.1 ppm and Rb/Sr > 2,0(t0. In contrast, granite batholiths are commonly comprised of rocks with Rb/Sr < l 0 and only rar...
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apatite (a); c-cpx, f – iron, m – merrillite, s – silica, p – plagioclase. CL picture is slightly zoomed out. SHOCK-INDUCED TEXTURE IN LUNAR MG-SUITE APATITE AND ITS EFFECT ON VOLATILE DISTRIBUTION. A. Cernok1, J. Darling2, L. White2, J.Dunlop2, and M. Anand1,3. 1Open University, School of Planetary Sciences, Walton Hall, MK7 6AA, United Kingdom ([email protected]), 2University of Portsmout...
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Circa 1.1 Ga granitic magmatism in Texas was manifested as two compositional groups: (1) the 1.12 Ga Red Bluff granitic suite in west Texas; and (2) 1.12-1.07 Ga granites of the Llano uplift of central Texas. Both suites share some characteristics typical of 'anorogenic' granites (e.g. potassiumand iron-rich bulk compositions, Fe-rich hydrous silicates, emplacement conditions involving low oxyg...
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ژورنال
عنوان ژورنال: Journal of Geophysical Research: Planets
سال: 2001
ISSN: 0148-0227
DOI: 10.1029/2000je001397