Results 61 to 70 of about 148,632 (254)

The mineralogy, petrology, and composition of anomalous eucrite Emmaville [PDF]

, 2017
The Emmaville eucrite is a relatively poorly studied basaltic achondrite with an anomalous oxygen isotope signature. In this study, we report comprehensive mineralogical, petrographic, and geochemical data from Emmaville in order to understand its ...
Barrat, Barrat, Bland, Bogard, Bunch, Clayton, Cleverly, Eggins, Floss, Ghosh, Greenwood, Greenwood, Greenwood, Greenwood, Janots, Lodders, Mandler, Mason, Mayne, McSween, Metzler, Miller, Miller, Mittlefehldt, Mittlefehldt, Mittlefehldt, Morgan, Nyquist, Palme, Papike, Qin, Righter, Rogers, Scott, Spivak-Birndorf, Starkey, Stolper, Takeda, Takeda, Trinquier, Warren, Wasson, Weisberg, Wiechert, Yamaguchi, Yamaguchi, Yamaguchi, Yamaguchi   +47 more
core   +1 more source

The lithospheric mantle and lower crust-mantle relationships under Scotland: a xenolithic perspective [PDF]

, 2011
In the British Isles the majority of volcanic rocks containing upper mantle and lower crustal xenoliths occur in Scotland. Most of the occurrences are of Carboniferous–Permian age.
Arai, B.G.J. Upton, Bonadiman, C. Bonadiman, Greenbaum, Griffin, H. Downes, Irving, Johnson, Kirstein, L.A. Kirstein, Larsen, Macdonald, McDonough, Menzies, P.G. Hill, Singh, T. Ntaflos   +17 more
core   +1 more source

Geologic structure and composition of Munilkan massif Verkhoyansk-Kolyma orogenic area

Литосфера, 2015
This article presents the results of detailed study of geologic structure and composition of Munilkan massif of the Main batholith belt of Verkhoyansk-Kolyma mesozoides (Tas-Khayakhtakh Ridge).
V. A. Trunilina, S. P. Roev, A. I. Zaitsev   +2 more
doaj   +2 more sources

Petrology of Yaluninogorsk granitoid massive (Alapaevsk-Sukhoi Log porphyry copper zone, Middle Urals)

Литосфера, 2018
Yaluninogorsk quartz diorite-trondhjemite massif is situated in Alapaevsk-Sukhoy Log zone of Eastern-Ural High potentially productive for Cu (±Mo) porphyry type of mineralization. The massif is a magma chamber 3 × 2 km under central type volcano.
Sergei V. Pribavkin, Irina A. Gottman, Anatolii V. Korovko   +2 more
doaj   +1 more source

A Data Driven Approach to Investigate the Chemical Variability of Clinopyroxenes From the 2014–2015 Holuhraun–Bárdarbunga Eruption (Iceland)

Frontiers in Earth Science, 2020
The Holuhraun–Bárdarbunga (Iceland) eruption lasted approximately 6 months. Magma propagated laterally through a 40 km long dyke, while Bárdarbunga caldera was collapsing.
Luca Caricchi, Maurizio Petrelli, Eniko Bali, Tom Sheldrake, Laura Pioli, Laura Pioli, Guy Simpson   +6 more
doaj   +1 more source

Evidence for a reducing Archean ambient mantle and its effects on the carbon cycle [PDF]

, 2016
Chemical reduction-oxidation mechanisms within mantle rocks link to the terrestrial carbon cycle by influencing the depth at which magmas can form, their composition, and ultimately the chemistry of gases released into the atmosphere.
Aulbach, Sonja, Stagno, Vincenzo
core   +1 more source

Direct dating of mid-crustal shear zones with synkinematic allanite:new in situ U-Th-Pb geochronological approaches applied to the Mont Blanc massif [PDF]

, 2013
International audienceDating the timing of motion on crustal shear zones is of tremendous importance for understanding the assembly of orogenic terranes.
Cenki-tok, Benedicte, Darling, James, Dhuime, Bruno, Rolland, Yann, Storey, Craig   +4 more
core   +3 more sources

New Theory of the Earth [PDF]

, 2007
New Theory of the Earth is an interdisciplinary advanced textbook on all aspects of the interior of the Earth and its origin, composition, and evolution: geophysics, geochemistry, dynamics, convection, mineralogy, volcanism, energetics and thermal ...
Anderson, Don L.
core   +2 more sources

Spherulite formation in obsidian lavas in the Aeolian Islands, Italy [PDF]

, 2017
The authors wish to gratefully acknowledge Andy Tindle (The Open University) for assistance with EMP analyses, and Richard Darton and David Evans (Keele University) for assistance with XRD and Prof Alun Vaughan and Nicola Freebody (University of ...
Bullock, Liam A., Gertisser, Ralf, O’Driscoll, Brian   +2 more
core   +2 more sources

Characterization of mesostasis regions in lunar basalts: Understanding late-stage melt evolution and its influence on apatite formation [PDF]

, 2016
Recent studies geared toward understanding the volatile abundances of the lunar interior have focused on the volatile-bearing accessory mineral apatite.
Agrell, Anand, Anderson, Barnes, Barnes, Birck, Boyce, Boyce, Day, Engel, Eugster, Fagan, Ghiorso, Ghiorso, Gualda, Hallis, Henderson, Hintenberger, Hohenberg, Horn, Husain, James, Lester, Liu, Longhi, Mathez, McCubbin, McCubbin, McCubbin, McCubbin, McCubbin, Neal, Neal, Nyquist, Papanastassiou, Papanastassiou, Pernet-Fisher, Prowatke, Ridley, Ryder, Seddio, Tartèse, Tartèse, Tartèse, Tartèse, Turner, Wakita, Weigand   +47 more
core   +1 more source