Results 51 to 60 of about 3,682 (259)

Platinum-group element mineralisation in the Unst ophiolite, Shetland [PDF]

, 1984
The ophiolitic basic and ultrabasic rocks of the island of Unst, Shetland comprise a sequence of harzburgites, dunites, clinopyroxene-rich cumulates, and gabbro, within tectonic blocks that have been thrust over a migmatite complex during the Laxer ...
Gunn, A.G., Leake, R.C., Styles, M.T.
core  

Dike Swarms in the Oceanic Lithosphere Beneath the Ontong Java Plateau

Geophysical Research Letters, Volume 52, Issue 19, 16 October 2025.
Abstract The Ontong Java Plateau (OJP) is believed to have formed through large‐scale Cretaceous volcanism, but the impact of the massive volcanism on the lithosphere remains largely unknown. In this study, the ascent process of the thermochemical plume and its impact on the physicochemical properties of the pre‐existing lithosphere were explored. High‐
Azusa Shito, Daisuke Suetsugu, Akira Ishikawa, Masako Yoshikawa, Takehi Isse, Hajime Shiobara, Hiroko Sugioka, Aki Ito, Yasushi Ishihara, Satoru Tanaka, Masayuki Obayashi, Takashi Tonegawa, Junko Yoshimitsu   +12 more
wiley   +1 more source

Interpretation of magnetic and geoelectrical data based on geological and mineralogical evidence in the podiform chromite prospecting, Khoy ophiolite, Northwest Iran

Journal of Economic Geology, 2021
Introduction Podiform chromite deposits are small magmatic chromite bodies formed in the lower section of an ophiolite complex. The Khoy ophiolite covers an extensive area in the northwest of Iran along the Iran-Turkey border.
Behnam Mehdikhani, Ali Imamalipour
doaj   +1 more source

AI‐Driven Advances in Sustainable Materials for Green Energy: From Innovation to Lifecycle Management

SusMat, Volume 5, Issue 5, October 2025.
This review examines artificial intelligence (AI) applications across the complete lifecycle of sustainable materials for green energy. In the design phase, we review predictive algorithms and generative models as discovery approaches. The synthesis section covers AI‐optimized manufacturing processes, robotic experimentation, and automated ...
Yuehui Xian, Cheng Li, Yangyang Xu, Yumei Zhou, Dezhen Xue   +4 more
wiley   +1 more source

Neoproterozoic ultramafic and mafic magmatism in the Eastern Cordillera of the central peruvian Andes: the Tapo Massif [PDF]

, 2010
A highly dismembered assemblage of ultramafic and mafic rocks is exposed in the Eastern Cordillera of the Central Peruvian Andes, extending along a discontinuous NW-SE belt over some 250 km between 12° and 9° S of latitude.
Acosta, Jorge, Castroviejo Bolibar, Ricardo, Pereira, Eurico, Rodrigues, Jose F., Tassinari, Colombo G.   +4 more
core   +2 more sources

First crystal-structure determination of chromites from an acapulcoite and ordinary chondrites [PDF]

, 2015
We report the first crystal structure determinations of chromites from an acapulcoite and from ordinary chondrites. Cell edges range from 8.3212 (3) to 8.3501 (1) \uc5, while the oxygen positional parameters are in the range 0.2624 (3) to 0.26298 (9 ...
Lenaz, Davide, Princivalle, Francesco, Schmitz, Birger   +2 more
core   +1 more source

Re−Os Isotope and PGE Abundance Systematics of Coast Range Ophiolite Peridotites and Chromitite, California: Insights into Fore-Arc Magmatic Processes [PDF]

Lithosphere
We report platinum-group element (PGE) and Re concentrations, and Re−Os isotopic data for peridotites and podiform chromitite from the mid-Jurassic Coast Range ophiolite (CRO), California.
Sung Hi Choi, Samuel B. Mukasa, John W. Shervais, Igor S. Puchtel   +3 more
doaj   +1 more source

Magnetotellurics Point to Serpentinization as a Potential Source of Hydrogen in the Bulqizë Ophiolite

Journal of Geophysical Research: Solid Earth, Volume 130, Issue 10, October 2025.
Abstract Hydrogen was first detected in the Bulqizë ophiolite massif (Albania) in 1992, and its origin remains uncertain, with hypotheses ranging from active serpentinization to the release of trapped, fossil H2. To constrain the thickness of the ophiolite layer—a key parameter for evaluating hydrogen generation—we conducted a magnetotelluric survey ...
Yan Yao, Frédéric‐Victor Donzé, Mathieu Persem, Laurent Truche, Bardhyl Muceku, Stéphane Garambois, Ivan Vujevic, Nicolas Lefeuvre, Edmond Goskolli   +8 more
wiley   +1 more source

Petrography of primary peridotites from the Ohsa-yama area, Okayama Prefecture [PDF]

, 1994
Ultramafic rocks exposed around Mt. Ohsa(= Ohsa-yama), Okayama prefecture, designated as "Ohsa-yama ultramafic body" all together, are one of the Alpine-type peridotites in the Sangun metamorphic belt.
Nozaka, Toshio, Shibata, Tsugio
core   +1 more source

Podiform Chromitites in the Sorkhband Ultramafic Complex, Southern Iran: Evidence for [PDF]

Journal of Sciences, Islamic Republic of Iran, 2008
The podiform chromitite deposits of the Ordovician Sorkhband ultramafic complex, southwestern Makran, are the largest chromitite deposits in Iran. The Sorkhband ultramafic complex comprises of a northern part of dunite, podiform chromitite, olivine ...
doaj