Results 11 to 20 of about 2,028 (168)

Marcasite at the Permian‐Triassic Transition

open access: yesGeophysical Monograph Series, Page 377-399., 2021

Exploring the links between Large Igneous Provinces and dramatic environmental impact

An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
Elena Lounejeva   +7 more
wiley  

+1 more source

Application of Modified DDARP Method for Purification of Barite in Natural Water Samples

open access: yesYankuang ceshi, 2019
BACKGROUND Diethylenetriaminepentaacetic acid (DTPA) dissolution and reprecipitation (DDARP) method is used frequently to eliminate encapsulated nitrate during barite precipitation. However, the effect of DDARP on barite precipitated from different kinds
ZHANG Dong   +6 more
doaj   +1 more source

A Barite Ore Beneficiation Test in Guizhou

open access: yesKuangchan zonghe liyong, 2023
This is an essay in the field of mineral processing engineering. Barite is an important non-metallic mineral with the characteristics of large proportion, non-toxic, non-magnetic, easy to absorb rays, etc.
Yanbo Xu, Wei Deng, Yaohui Yang
doaj   +1 more source

The attenuation coefficient of barite concrete subjected to gamma-ray radiation

open access: yesMATEC Web of Conferences, 2019
Barite is a non-metallic mineral, which composed of Barium Sulfate (BaSO4), has specific gravity about 4.5. It can be used for high density concrete as a shielding against gamma-ray.
Budi Gogot Setyo   +3 more
doaj   +1 more source

The Average Structural Density of Barite Crystals of Different Habit Types

open access: yesGeologia Croatica, 2010
Eight different habit types of barite crystals which could be classifiedinto 4 essentially different groups were determined by morphologicalanalysis: Eb group - barite crystals elongated in the [010] direction; Ea group - barite crystals ...
Biserka Radanović-Gužvica
doaj   +1 more source

Geology and geochemistry of the Jurassic carbonate hosted barite deposits, Northeast Zakho, Iraq [PDF]

open access: yesKirkuk Journal of Science, 2011
Barite deposits located in Marsis locality of about 25km northeast of Zakho City were hosted in Jurassic dolomitic rocks. The barite is extending for about 6km and limited within about 38m thickness of dolomitic rocks.
Ali M.N. Al-Azzawi   +2 more
doaj   +1 more source

DÜNYA BARİT MADENCİLİĞİNİN DURUMU VE PİYASALARDA REKABET DÜZEYİNİN GELİŞİMİ

open access: yesEskişehir 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

Synthesis of barium carbonate by mechanochemical method [PDF]

open access: yesمواد نوین, 2022
Introduction: In this research, barium carbonate was synthesized via mechanochemical method from the mixture of barite concentrate-sodium carbonate. The producing of barium carbonate form barite concentrate and the evaluation of the phases/products were ...
Tahereh Shayanzadeh Moghadam   +3 more
doaj   +1 more source

Knowledge Organization and Terminology: intersections, interlocutions and projections

open access: yesInformatio
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

Dissolution of barite using coordination chemistry: Optimization and characterization

open access: yesResults 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   +2 more
doaj   +1 more source

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