Results 51 to 60 of about 4,473 (252)

Contamination of useful plant leaves with chromium and other potentially toxic elements and associated health risks in a polluted mining-smelting region of South Africa

Environmental Advances, 2022
Foliar exposure to dust-borne potentially toxic elements (PTEs) is often overlooked in chromium (Cr) mining and industrial regions. A comparative analysis of unwashed (UL) and washed leaves (WL) was conducted to investigate the contribution of dust to Al,
Sutapa Adhikari, João Marcelo-Silva, Johan Paul Beukes, Pieter Gideon van Zyl, Yolindi Coetsee, Ricart Barend Boneschans, Stefan John Siebert   +6 more
doaj   +1 more source

Two new minerals, badengzhuite, TiP, and zhiqinite, TiSi₂, from the Cr-11 chromitite orebody, Luobusa ophiolite, Tibet, China: is this evidence for super-reduced mantle-derived fluids? [PDF]

European Journal of Mineralogy, 2020
Titanium minerals enclosed in corundum separated from the Cr-11 orebody include native Ti, zamboite (FeTiSi2), osbornite (TiN)-khamrabaevite (TiC) solid solutions, and jingsuiite (TiB2), as well as the new minerals badengzhuite (TiP) and zhiqinite (TiSi2)
F. Xiong, F. Xiong, X. Xu, E. Mugnaioli, M. Gemmi, R. Wirth, E. S. Grew, P. T. Robinson, J. Yang, J. Yang, J. Yang   +10 more
doaj   +1 more source

Assessment of Radioactivity in Building Materials

ARO-The Scientific Journal of Koya University
This research investigates the radioactivity levels of various rock types used in construction within the Kurdistan region and assesses their potential impact on human health, the measurements were performed using an HPGe gamma-ray spectrometer.
Adeeb O. Jafir, Mohammed I. Hussein, Idrees A. Nadir, Barzan N. Sabr, Ali H. Hassan   +4 more
doaj   +1 more source

Early Cambrian forearc ophiolite-hosted VMS-type Cu deposit in the North Qaidam belt, northern Tibetan Plateau

Geosystems and Geoenvironment, 2023
The North Qaidam belt is an important polymetallic metallogenic belt in the northwestern region of China. However, the tectonic setting and age of related VMS deposits remain debated.
Changlei Fu, Bingzhang Wang, Zhen Yan, Jonathan C. Aitchison, Wenjiao Xiao, Solomon Buckman, Wufu Li   +6 more
doaj   +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

PGE distribution in the Chromite bearing mafic-ultramafic Kondapalli Layered Complex, Krishna district, Andhra Pradesh, India

Open Geosciences, 2015
The Kondapalli Layered Complex (KLC) is a dismembered mafic-ultramafic layered intrusion, mainly composed of gabbroic and anorthositic rocks with subordinate ultramafics and chromitite.
Meshram Tushar M., Nannaware Shraddha. B., Nannaware B., Bhatacharjee Shantanu, Waghmare Minakshi. M., Rajakumar T.   +5 more
doaj   +1 more source

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  

Petrogenesis of the chromitite body from the Cerro Colorado ophiolite, Paraguaná Peninsula, Venezuela

Boletín de la Sociedad Geológica Mexicana, 2020
Ultramafic-mafic rocks of ophiolitic affinity crop out along the Venezuelan Caribbean region. They have been interpreted as remnants of the oceanic lithosphere of the Caribbean volcanic arc (135-70 Ma) as well as relicts of proto-Caribbean oceanic ...
David Mendi, J. González-Jiménez, J. Proenza, F. Urbani, F. Gervilla   +4 more
semanticscholar   +1 more source

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