Results 1 to 10 of about 24,088 (309)
Oxidation States of Fe in Constituent Minerals of a Spinel Lherzolite Xenolith from the Tariat Depression, Mongolia: The Significance of Fe3+ in Olivine [PDF]
Minerals (Basel, Switzerland), 2018 The oxidation states of Fe within olivine, orthopyroxene, clinopyroxene, and spinel in a spinel lherzolite xenolith from the Tariat Depression, Mongolia were investigated using 57Fe Mossbauer spectroscopy to evaluate the redox condition of the upper ...
Yasuhito Osanai, Yoshiaki Kon
exaly +3 more sources
Early Cretaceous Surtseyan volcanoes of the Baño Nuevo Volcanic Complex (Aysén Basin, Eastern Central Patagonian Cordillera, Chile) [PDF]
Geologica Acta, 2010 Tens of Surtseyan tuff cones are exposed in the Río Coichel valley, between Ñireguao and Estancia Baño Nuevo (Southern Chilean Andes). The Early Cretaceous products of the submarine eruptions rest on, or are interbedded with, shallow marine sandstones of
A. DEMANT +3 more
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Carbonate- and silicate-metasomatized mantle beneath Himalayan-Tibetan orogenic belt [PDF]
Communications Earth & EnvironmentThe extreme geochemical enrichment of post-collisional potassium-rich lava in the Alpine-Himalayan orogenic belt has led researchers to hypothesize that enrichment is inherited from a metasomatized mantle source potentially incorporating crustal ...
Weikai Li +4 more
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Cold deep subduction recorded by remnants of a Paleoproterozoic carbonated slab [PDF]
Nature Communications, 2018 The onset of modern-style plate tectonics remains under debate. Here, Xu et al. report a cold thermal-gradient recorded in an eclogite xenolith in Paleoproterozoic carbonatite from orogen, and propose that modern-style subduction has operated since at ...
Cheng Xu +10 more
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Evaluation of Contextual and Game-Based Training for Phishing Detection
Future Internet, 2022 Cybersecurity is a pressing matter, and a lot of the responsibility for cybersecurity is put on the individual user. The individual user is expected to engage in secure behavior by selecting good passwords, identifying malicious emails, and more. Typical
Joakim Kävrestad +5 more
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Geochemistry, Geophysics, Geosystems, 2023 We present constraints on the hydration state and rheology of the lithospheric mantle beneath the North Anatolian fault zone (NAFZ). Peridotite xenoliths from the Biyikali and Çorlu volcanic centers record deformational microstructures consistent with ...
A. D. Lusk +3 more
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XENOLITHS OF POLYMICTIC BRECCIAS FROM KIMBERLITES OF THE YAKUTIAN DIAMONDIFEROUS PROVINCE
Геодинамика и тектонофизика, 2022 The polymictic breccias, extremely rare mantle conglomerates being the fragments of rocks and large mantle minerals cemented with fine-grained mass have been long provoking interest of petrologists worldwide.
L. N. Pokhilenko +2 more
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Geochemistry, Geophysics, Geosystems, 2023 We present data for lithospheric mantle xenoliths sampled from two alkali basalts in south‐central Vietnam, Pleiku and Xuan Loc, including fertile spinel peridotites.
Kirby P. Hobbs +4 more
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Eos, Transactions American Geophysical Union, 1989 Mantle Xenoliths, edited by Peter H. Nixon, provides a valuable summary of both the state of our knowledge of mantle xenoliths and the current interpretations of them. It is generally well edited and surprisingly well integrated for a large, multiauthored volume.Useful integrating features include introductory sections (by Nixon) an d a summary chapter
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Geochemistry, Geophysics, Geosystems, 2021 The Earth's upper mantle is isotopically heterogeneous over large lengthscales, but the lower limit of these heterogeneities is not well quantified. Grain scale trace elemental variability has been observed in mantle peridotites, which suggests that ...
Benjamin L. Byerly +2 more
doaj +1 more source