Results 21 to 30 of about 734 (136)

Knowledge Organization and Terminology: intersections, interlocutions and projections

Informatio
The objective of this work is to explore the space of intersection between Knowledge Organization (KO) and Terminology, with the intention of identifying the theoretical and methodological elements of one field that have been recognized as possible ...
Mario Barité
doaj   +1 more source

Barite

, 1988
More than 150 occurrences or deposits of barite (barium sulphate, BaSO 4) have been recorded in Canada; however, deposits of economic significance are confined largely to Newfoundland, Nova Scotia, Ontario and British Columbia. There are three main producers of barite at present: one with a mine at Brookfield, N.S., another with mines near Matachewan ...
R K Collings, P R A Andrews
openaire   +1 more source

DÜNYA BARİT MADENCİLİĞİNİN DURUMU VE PİYASALARDA REKABET DÜZEYİNİN GELİŞİMİ

Eskişehir Osmangazi Üniversitesi Mühendislik ve Mimarlık Fakültesi Dergisi, 2021
Barite is a critical raw material used in many sectors, especially in oil, natural gas and shale gas exploration. Due to the concentration of approximately 79% of the existing 300 million tons of barite reserves in the world in four countries as of 2020,
Hakan AK, Mehmet AKSOY, Adnan KONUK
doaj   +1 more source

Replacement of Ores Recorded by Textures and Chemical Compositions of Sphalerite: An Example From the Furutobe Kuroko Deposit, Akita, Japan

Geological Journal, EarlyView.
Coupled dissolution‐reprecipitation of early formed Cd‐, Fe‐, Ag‐ and Sb‐poor sphalerite through interaction with high‐temperature and high‐sulphur fugacity Cu‐rich fluids, responsible for the formation of the yellow ores, resulted in the formation of Cd‐, Fe‐, Ag‐ and Sb‐rich, heavily chalcopyrite‐diseased sphalerite and enrichment of critical metals ...
Manuel Nopeia, Ryohei Takahashi, Andrea Agangi, Pearlyn Manalo, Hinako Sato   +4 more
wiley   +1 more source

Apatite in Carbonatite Preserving Primary Magmatic, Post‐Magmatic Overgrowth, and Post India‐Asia Collision‐Related Hydrothermal Alteration: Evidenced From U–Pb Isotope and Trace Element Geochemistry

Geological Journal, EarlyView.
U–Pb isotope and trace element geochemistry of apatite from carbonatites of Peshawar Plain Alkaline Igneous Province, western Himalaya shows Permo‐Carboniferous magmatism, an additional magmatic pulse during Cretaceous, and post‐magmatic hydrothermal/metasomatism during Oligocene. ABSTRACT U–Pb isotope and trace element geochemistry of apatite combined
Mehboob ur Rashid, Hafiz U. Rehman, Hao‐Yang Lee, Sun‐Lin Chung, Kaushik Das, Kazumasa Aoki, Muhammad Jawad Zeb, Nasir Ahmad, Muhammad Hussain, Hiroshi Yamamoto   +9 more
wiley   +1 more source

Barite Precipitation on Suspended Organic Matter in the Mesopelagic Zone

Frontiers in Earth Science, 2020
Mechanisms underlying barite precipitation in seawater and the precise depths of barite precipitation in the water column have been debated for decades.
F. Martinez-Ruiz, A. Paytan, M. T. Gonzalez-Muñoz, F. Jroundi, M. M. Abad, P. J. Lam, T. J. Horner, M. Kastner   +7 more
doaj   +1 more source

Dissolution of barite using coordination chemistry: Optimization and characterization

Results in Chemistry, 2023
This work included two different types of dissolving process (inorganic and organic) which used for the complete dissolving barium sulfate (barite). The inorganic solvents were involved digestion on hotplate with recipe of mixture acids with hydrogen ...
Fouad S. Al-Kaabi, Raghad A. Hussein, Mustafa A. Abdulkareem   +2 more
doaj   +1 more source

Assessment of Metal Contamination and Human Health Risk in the Buffalo River Estuary, Eastern Cape, South Africa

Environmental Toxicology, EarlyView.
ABSTRACT Metal contamination in estuarine environments poses environmental and public health concerns, particularly where surface waters support domestic and subsistence uses. This study assessed the seasonal distribution, controlling mechanisms, and non‐carcinogenic health risks of selected metals (Mg, Al, Ba, Fe, Mn, and Zn) in the Buffalo River ...
Motebang D. V. Nakin, Tolulope Elizabeth Aniyikaiye, Akinola Ikudayisi   +2 more
wiley   +1 more source

Feldspar Albitization With Implications for Reservoir Quality Evolution of Eocene Turbidite Sandstones in Offshore Espírito Santo Basin, Eastern Brazil

Journal of Petroleum Geology, EarlyView.
ABSTRACT The diagenetic albitization of plagioclase and K‐feldspar grains is a transformative process that significantly alters sandstone's detrital composition and formation water chemistry, impacting reservoir quality. In this study, Eocene turbidite sandstones from the offshore Espírito Santo Basin, Brazil, were investigated to elucidate the role of
Eveline E. Zambonato, Luiz F. De Ros, Howri Mansurbeg   +2 more
wiley   +1 more source

Characterisation of barite bodies from Camal Island (Kenyir Geopark), Terengganu, Malaysia

Bulletin of the Mineral Research and Exploration
The aim of this study is to understand the geological aspect and characterisation of barite bodies in Camal Island, a part of Kenyir National Geopark, in Terengganu state, Malaysia.
Ain Syafika Mat Husin, Dony Adryansyah Nazaruddin, Muhd Nur Ismail Abdul Rahman   +2 more
doaj   +1 more source