Results 21 to 30 of about 8,250 (222)

Gravimetric structure for the abyssal mantle massif of Saint Peter and Saint Paul peridotite ridge, Equatorial Atlantic Ocean, and its relation to active uplift

Anais da Academia Brasileira de Ciências, 2014
This paper presents gravimetric and morphologic analyses based on the satellite-derived data set of EGM2008 and TOPEX for the area of the oceanic mantle massif of the Saint Peter and Saint Paul peridotite ridge, Equatorial Atlantic Ocean.
KENJI F. MOTOKI, AKIHISA MOTOKI, SUSANNA E. SICHEL   +2 more
doaj   +1 more source

Characterizing Peridotite Xenoliths From Southern Vietnam: Insight Into the Underlying Lithospheric Mantle

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, Lynne J. Elkins, John C. Lassiter, Nguyen Hoang, Caroline M. Burberry   +4 more
doaj   +1 more source

A Unique Collections oif Peridotite [PDF]

Science, 1908
n ...
openaire   +3 more sources

Highly refractory Archaean peridotite cumulates : Petrology and geochemistry of the Seqi Ultramafic Complex, SW Greenland [PDF]

, 2017
This paper investigates the petrogenesis of the Seqi Ultramafic Complex, which covers a total area of approximately 0.5 km2. The ultramafic rocks are hosted by tonalitic orthogneiss of the ca.
van Hinsberg, Vincent, Szilas, Kristoffer, Bird, Dennis, Tomas Næraa, Vincent van Hinsberg, van Hinsberg, Vincent J., Hugh Rollinson, Næraa, Tomas, Kristoffer Szilas, Jacob Adetunji, McDonald, Iain, Rollinson, Hugh, Adetunji, Jacob, Iain McDonald, Dennis Bird   +14 more
core   +1 more source

Evolution history of north Anarak, Central Iran ophiolitic olistoliths using petrographical and mineral chemistry studies [PDF]

پترولوژی, 2021
Anarak ophiolite, belonging to Paleozoic, formed along with the tectonic evolution of the Paleo- Tethys Ocean, consisting of meta- peridotites of mantle and crust, cumulate rocks, massive gabbros, pillow lava, basic and ultrabasic dikes, rodingite and ...
Elahe Zarei, Morteza Sharifi, Meisam Tadayon   +2 more
doaj   +1 more source

Titanium substitution mechanisms in forsterite [PDF]

, 2007
Ti K-edge X-ray absorption near edge structure (XANES) and extended X-ray absorption fine structure (EXAFS) spectra, together with atomic scale calculations, indicate that Ti occupies the Si site in anhydrous forsterite.
Herman, J., Walker, Andrew M., Hermann, Joerg, Walker, A., Gale, Julian D., Walker, A. M., Gale, J. D., Foran, Garry J, Berry, A. J., Berry, AJ, Foran, Garry J., Hermann, J, Foran, G., Hermann, J., Foran, G. J., O'Neill, HStC, Walker, AM, Foran, GJ, O'Neill, Hugh, Berry, A., Gale, Julian, Berry, Andrew John, Gale, Julian D, Walker, Andrew, Berry, Andrew J., O'Neill, Hugh St.C., O'Neil, H., Hermann, Jörg, O'Neill, HSt.C, Gale, JD, O'Neill, H. S.   +30 more
core   +1 more source

Determination of Rare Earth Elements in Peridotite by Inductively Coupled Plasma-Mass Spectrometry after Alkali Fusion and Mg(OH)2 and Fe(OH)3 Coprecipitation

Yankuang ceshi, 2017
Characteristics of REEs in peridotite is significant for studying petrogenesis and magmatic processes. Due to the serious interference of matrix elements such as Mg and Fe, it is difficult to determine the low contents of REEs in peridotite (∑REEs=0.1-1 ...
LI Wei-liang, CHENG Xiu-hua, LI Zhong-yu, WANG Peng   +3 more
doaj   +1 more source

Fluid-rock interaction in eclogite-facies meta-peridotite (Erro-Tobbio Unit, Ligurian Alps) [PDF]

, 2023
openExhumed blueschist/eclogite-facies serpentinites, altered oceanic rocks and sediments can provide information on dehydration reactions, fluid activity and, possibly, seismicity occurring during subduction of oceanic lithosphere.
CACCIARI, SERENA
core  

Olivine versus peridotite during serpentinization: Gas formation

, 2015
The dependence of starting materials and their initial grain sizes on the formation of gases (H-2, CH4, C2H6 and C3H8) during serpentinization was investigated by conducting hydrothermal experiments at 311A degrees C and 3 kbar on olivine and peridotite ...
Sun WeiDong, Huang RuiFang, Ding Xing, Liu JinZhong, Peng ShaoBang   +4 more
core   +1 more source

Chromian spinel geochemistry as a petrogenetic indicator in the chromitites and peridotites of the Bajgan Complex, Western Makran [PDF]

پترولوژی
IntroductionEconomic chromite deposits are very common in ophiolite belts. These deposits usually occur in the uppermost horizons of the ophiolite mantle sequence or within the ultramafic cumulitic rocks at the base of the crustal sequence (González ...
Leila Vahedi, Morteza Delavari, Emilio Saccani   +2 more
doaj   +1 more source