Results 51 to 60 of about 19,778 (275)
Известия высших учебных заведений: Геология и разведкаBackground. The mineral association of ruby in the Snezhnoye deposit is represented by 7 rock-forming and 19 accessory minerals. Here, all minerals vary in their composition due to isomorphism.
A. K. Litvinenko, Sh. A. Odinaev
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Oriented Magnetite Inclusions in Plagioclase: Implications for the Anisotropy of Magnetic Remanence
Geochemistry, Geophysics, Geosystems, 2022 Micron to sub‐micron sized ferromagnetic inclusions in rock forming silicate minerals may give rise to particularly stable remanent magnetizations. When a population of inclusions have a preferred crystallographic or shape orientation in a rock, the ...
O. Ageeva +7 more
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Trace element partitioning in plagioclase feldspar
, 2006 Compilation and interpretation of experimental and natural Nernst partition coefficient (plagioclase/meltD) data show that, with a few exceptions, increases in plagioclase/meltD correlate with decreasing anorthite-content of plagioclase.
Bédard, Jean H.
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Plagioclase Fractionation inTroctolitic Magma [PDF]
, 2020 Troctolitic intrusive rocks poor in augite are common in certain Proterozoic anorthosite complexes and related rocks. The Lower Zone of the Kiglapait intrusion, Labrador, consists of $1570 km 3 troctolite today and possibly $2900 km 3 before erosion.
S A Morse
core
Deep Underground Science and Engineering, EarlyView.The tensile strength of granite, a proposed host for nuclear waste, degrades severely above 400°C. We link this to specific microcracking patterns captured by acoustic emission, establishing a scientific basis for assessing repository safety under thermal load.
Wei Zeng +7 more
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(Table 3) Strontium isotope ratios of plagioclase of ODP Hole 183-1137A basalts
, 2009 (Table 3) Strontium isotope ratios of plagioclase of ODP Hole 183-1137A ...
Neal, Clive R +7 more
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Notable Impact of Paleotectonic Stress on Gold Mineralisation in the West Qinling Orogen
Geological Journal, EarlyView.By applying fuzzy clustering and multiple inverse methods, we systematically processed the data of vein and fault slip in this ore deposit to reveal the transition of orogenic geological environment and paleotectonic stress field. Our research results show two different stress states: the northwest–southeast extensional stress field and the northeast ...
Hongyan Wang +3 more
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Plagioclase composition by Raman spectroscopy
, 2018 Plagioclase undergoes complex exsolution and ordering and phase transition processes during their evolution in nature, and this has hindered attempts to define simple trends relating the major peaks of their Raman spectra with composition. Here, the peak
Benisek, Artur +7 more
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New Detections of Feldspar‐Bearing Volcanic Rocks in the Walls of Valles Marineris, Mars
Geophysical Research Letters, 2023 Plagioclase‐bearing rocks were first detected in the vicinity of large impact basins on Mars using visible/near‐infrared (VNIR) data. The geologic context is consistent with excavated plutons or ancient crustal outcrops.
Jessica Flahaut +6 more
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Geological Journal, EarlyView.Integrated petrographic, mineralogical and geochemical data from the Hastanetepe Pb–Zn deposit (Balya, Türkiye) reveal multi‐stage hydrothermal alteration and a magmatic sulphur source. Fluid inclusion and sulphur isotope results indicate a complex fluid evolution responsible for skarn‐type Pb–Zn mineralization along limestone–dacite contacts ...
Esra Ünal‐Çakır
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