Results 171 to 180 of about 4,150 (216)

Thermal Expansion of Plagioclase

Proceedings of the Imperial Academy, 1933
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Isotopic evidence for volatile loss driven by South Pole-Aitken basin-forming impact. [PDF]

Proc Natl Acad Sci U S A
Tian HC, Zhang C, Li WJ, Xue D, Wang J, Yang W, Liu YH, Lin Y, Li XH, Wu FY.   +9 more
europepmc   +1 more source

Dynamic damage and crack propagation of granite under thermal shock: DEM modeling insights. [PDF]

Sci Rep
Su L, Li H, Chi Q, Yang X, Gao X, Huang X.   +5 more
europepmc   +1 more source

Petrogenesis of Late Permian Mafic Rocks in the Western Guangxi Area, SW China: Implications for the Emeishan Mantle Plume Magmatism. [PDF]

ACS Omega
Zhang Y, Zhang Z, Yuan Y.
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Applications of machine learning algorithms in lithological mapping of Saint Katherine Neoproterozoic rocks in the South Sinai of Egypt using hyperspectral PRISMA data. [PDF]

Sci Rep
Ali-Bik MW, Zafar T, Hassan SM, Sadek MF, Abo Khashaba SM.   +4 more
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Petrological diversity of continental arc magmatism evidenced by Triassic magmatic complexes in East Kunlun Orogen. [PDF]

Sci Rep
Gan J, Wang W, Yan D, Zhou H, Xiong F, Zhou H, Li H.   +6 more
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Micropores in plagioclase

Contributions to Mineralogy and Petrology, 1975
Plagioclase feldspar is often surprisingly porous on a small scale. Pores range in size from less than 1 μm to about 40 μm, and occupy up to 2.3 % by volume. In general, the highest plagioclase porosities occur in rocks which would have had a comparatively “wet” history: normal granites and pegmatites.
Montgomery, Carla W., Brace, W. F.
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Oscillatory Zoning in Plagioclase Feldspar

Science, 1980
A kinetic mathematical model of crystal growth from the melt is used to describe quantitatively the phenomenon of oscillatory zoning in plagioclase feldspar. In this model, the functional dependence of crystal growth rate on both melt and crystal surface composition and the transport of material within the melt are explicitly considered.
C S, Haase, J, Chadam, D, Feinn, P, Ortoleva   +3 more
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Crystallography of Some Lunar Plagioclases

Science, 1970
Crystals of calcic bytownite from type B rocks have space group C 1̅ with c ≈ 14 angstroms. Bytownite crystals from type A rocks are more sodic and have space group C 1̅, c ≈ 7 angstroms.
D B, Stewart, D E, Appleman, J S, Huebner, J R, Clark   +3 more
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Partial Melting Reactions of Plagioclases and Plagioclase-Bearing Systems

1994
The kinetics of partial melting were studied in the systems: $$\begin{gathered} \begin{array}{*{20}c} {Ab - An} & {{\text{ }}\left( {P = 1{\text{ }}atm} \right)} \\ \end{array} \hfill \\ \begin{array}{*{20}c} {Ab - An - H_2 O} & {{\text{ }}\left( {P = 5{\text{ }}kbar} \right)} \\ \end{array} \hfill \\ \begin{array}{*{20}c} {Qz - Ab - An - H_2 O} & {
W. Johannes, J. Koepke, H. Behrens
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