Results 21 to 30 of about 2,647 (217)

Multiple origins for mantle harzburgites: examples from the Lewis Hills, Bay of Islands ophiolite, Newfoundland [PDF]

, 1995
Study in the Bay of Islands ophiolite exposed in the Lewis Hills of Newfoundland has enabled the identification of four major types of harzburgite, which represent examples of a complete spectrum of this rock type.
Edwards, SJ, Malpas, J
core   +2 more sources

THE NATURE OF ULTRAMAFIC XENOLITHS IN THE BASALTS OF LANZAROTE ISLAND (CANARY ARCHIPELAGO)

Геодинамика и тектонофизика, 2022
Mineralogical and geochemical study was performed on peridotite xenolith hosted by amygdaline basalts of Lanzarote Island (Canary archipelago). Their modal composition corresponds to harzburgite.
V. A. Krylova, I. F. Gertner, G. Gutiérrez-Alonso   +2 more
doaj   +1 more source

The formation of dunite channels within harzburgite in the Wadi Tayin Massif, Oman Ophiolite : insights from compositional variability of Cr-spinel and olivine in holes BA1B and BA3A, Oman Drilling Project [PDF]

, 2020
Holes BA1B and BA3A were drilled into the Wadi Tayin Massif, southern ophiolite complex of Oman, a fragment of the Tethyan oceanic lithosphere obducted onto the Arabian continent.
Zaccarini F., Crispini, Cocomazzi G., P. Tartarotti, Zaccarini, F. Zaccarini, Grieco, Bussolesi, Science Team, Cocomazzi, G. Cocomazzi, G. Grieco, M. Bussolesi, Bussolesi M., Crispini L., Tartarotti, Grieco G., L. Crispini, Tartarotti P.   +18 more
core   +1 more source

Re-Os constraints on harzburgite and lherzolite formation in the lithospheric mantle:A study of northern Canadian Cordillera xenoliths

, 2000
Osmium isotope data from lherzolite and harzburgite xenoliths of the northern Canadian Cordillera provide constraints on the genesis and age of the lithospheric mantle in a typical off-cratonic continental setting.
Laurie Reisberg, Peslier, Anne, Anne H Peslier, Reisberg, Laurie, Francis, Don, Ludden, John, Don Francis, John Ludden, Peslier, Anne H.   +8 more
core   +1 more source

Harzburgite melting with and without H₂O: Experimental data and predictive modeling [PDF]

, 2004
The effect of H2O on harzburgite-saturated melts has been quantified with a series of hydrous and anhydrous melting experiments using a piston-cylinder device. Experimental conditions were 1.2–2.2 GPa and 1175–1500°C. Melt H2O contents range from 0 to 10
Grove, T.L, Parman, S.W
core   +1 more source

Influence of Laterite Bedrock on Ni Content in Langgikima District, North Konawe Regency, Southeast Sulawesi, Indonesia

JGEET: Journal of Geoscience, Engineering, Environment and Technology
This study investigates the influence of bedrock on nickel (Ni) content in laterite deposits in the Lameruru Region, Langgikima District, North Konawe Regency, Southeast Sulawesi Province, Indonesia.
Hasria, Ali Okto, Rio Irhan Mais Cendra Jaya, Wa Ode Nur Alamyah, Muhamad Safar, Sara Septiana, Syahrul   +6 more
doaj   +1 more source

Genesis of Chromitite in Qalander Area, Northern Iraq [PDF]

Kirkuk Journal of Science, 2006
The study area is an isolated ultramafic complex composite of harzburgite-dunite-chromitite association in Qalander area, abut 10 km east of Mergesur, Erbil City, northern Iraq.
doaj   +1 more source

Geochemistry of rare, rare earth elements and platinum group elements in rocks of Shaman ultramafic massif (Eastern Transbaikalia)

Литосфера, 2016
The research on petrochemistry and geochemistry of rare, rare earth and platinum group elements in the rocks Shaman massif - the largest ultramafic protrusion body in eastern branch of the Baikal-Muya ophiolite belt, performed using a different of ...
F. P. Lesnov, A. I. Chernyshov, E. . E Pugacheva   +2 more
doaj   +2 more sources

Dehydroxylation of the serpentinite before its chemical treatment [PDF]

Acta Montanistica Slovaca, 2009
The thermal treatment of serpentine from the locality Ljeskovac, Croatia, was studied in order to reach optimum characteristicsfor the inorganic acid leaching process.
Gabriel Sučik, Martin Hreus, Alena Fedoročková, D. Hršak, A   +3 more
doaj  

Hydrated Peridotite–Basaltic Melt Interaction Part II: Fast Assimilation of Serpentinized Mantle by Basaltic Magma

Frontiers in Earth Science, 2020
The most abundant terrestrial lavas, mid-ocean ridge basalt (MORB) and ocean island basalt (OIB), are commonly considered to be derived from a depleted MORB-mantle component (DMM) and more specific, variably enriched mantle plume sources.
Anastassia Y. Borisova, Anastassia Y. Borisova, Nail R. Zagrtdenov, Michael J. Toplis, Georges Ceuleneer, Oleg G. Safonov, Oleg G. Safonov, Oleg G. Safonov, Gleb S. Pokrovski, Klaus Peter Jochum, Brigitte Stoll, Ulrike Weis, Svyatoslav Shcheka, Andrey Y. Bychkov   +13 more
doaj   +1 more source