Results 61 to 70 of about 9,511 (218)

Microbially Mediated Intracellular Barite Mineralization: Evidence From an Early Ediacaran Microfossil in the Doushantuo Formation of South China

Geophysical Research Letters
Barite serves as a key proxy for reconstructing paleo‐oceanic productivity and chemistry in modern and ancient marine sediments. Although contemporary barite precipitation involves biological mediation, the mechanisms responsible for ancient barite ...
Shiqi Cheng, Lianjun Feng, Yingjie Yang, Xuelei Chu, Xingliang Zhang, Jinhua Li   +5 more
doaj   +1 more source

Structurally‐Controlled Permeability Evolution and Mineralization in Geothermal Caprocks: The Fenice Capanne Mining District (Southern Tuscany, Italy)

Geochemistry, Geophysics, Geosystems, Volume 27, Issue 8, August 2026.
Abstract The Neogene mineralized region of the Colline Metallifere in southern Tuscany (Italy) provides a natural laboratory to investigate feedback between fluid–rock interaction, structurally controlled fluid flow, and hydrothermal ore mineralization.
Barbara Marchesini, Federico Rossetti, Ahmad Rabiee, Andrea Billi, Andrea Cavallo, Davide Novella, Vincenzo Moretto, Antonio Caracausi, Fabio Trippetta, Luca Aldega, Luigi Dallai, Giovanni Ruggieri, Eugenio Carminati   +12 more
wiley   +1 more source

Geochemical characteristics of the barite deposits at cold seeps from the northern Gulf of Mexico continental slope

, 2011
Although less common than the occurrence of authigenic carbonate, barite has been observed frequently at cold seeps on continental margins worldwide. It is understood that barite forms by the interaction of barium-rich and sulfate-free seeping fluids ...
Dong Feng, Feng, Dong, Roberts, HH, Feng, D, Roberts, Harry H., Harry H. Roberts   +5 more
core   +1 more source

Lauryl Phosphate Flotation Chemistry in Barite Flotation

, 2020
Barite has numerous applications including barium mud for oil well drilling, manufacture of elemental barium, filler for paper and rubber industries, and contrast material for X-ray radiology for the digestive system.
Weiping Liu, Ying Lu, Fangqin Cheng, Xuming Wang, Huaigang Cheng, Jan D. Miller   +5 more
core   +1 more source

Geological Characteristics, Distribution Patterns and Genesis Analysis of Hydrothermal Barite Deposits in Kaili Area, Guizhou Province

Kuangchan zonghe liyong
[Objective] The Kaili Area in Guizhou Province, as one of the main distribution areas of hydrothermal barite deposits in Guizhou, has significant economic value and scientific research significance for its hydrothermal barite deposits. However, there are
Xigui ZHANG, Sheng DAI, Shanli HE, Qingpeng SHI   +3 more
doaj   +1 more source

Early–Late Carboniferous Tectonic Evolution of the Northern North China Craton (NE China): Constraints From Zircon Ages, Geochemistry, and Crustal Thickness Modeling

Geochemistry, Geophysics, Geosystems, Volume 27, Issue 8, August 2026.
Abstract The tectonic evolution of the northern margin of the North China Craton (NCC) remains controversial. In this study, we obtained zircon U–Pb ages, geochemical data, and Sr–Nd isotopic data for volcanic rocks, and detrital zircon ages for sedimentary rocks from the Yufutun, Tongqigou, and Benxi formations in central‐southern Jilin Province, NE ...
Yunfei Chang, Qingxiang Du, Huachun Gan, Xiaoli Shen, Zuozhen Han, Xiaoxue Hou, Huicong Zhang   +6 more
wiley   +1 more source

Barium and its Importance as an Indicator of (Paleo)Productivity

Anais da Academia Brasileira de Ciências
Barium (Ba) is a trace element which occurs predominantly as barite mineral (BaSO4) in the marine environment. Previous work suggests that barite concentrations are related to the organic carbon flux and marine biological debris in the water column ...
BIANCA T.P. LIGUORI, MARCELO G. DE ALMEIDA, CARLOS E. DE REZENDE   +2 more
doaj   +1 more source

A Kolmogorov–Arnold Surrogate Model for Chemical Equilibria: Application to Solid Solutions

Journal of Geophysical Research: Machine Learning and Computation, Volume 3, Issue 4, August 2026.
Abstract The computational cost of geochemical solvers is a challenging matter. For reactive transport simulations, where chemical calculations are performed up to billions of times, it is crucial to reduce the total computational time. Existing publications have explored various machine learning approaches to determine the most effective data‐driven ...
Leonardo Boledi, Dirk Bosbach, Jenna Poonoosamy   +2 more
wiley   +1 more source

Experimental investigation on barite sag under flowing condition and drill pipe rotation

Journal of Petroleum Exploration and Production Technology, 2020
Using drilling fluids with optimum density is one of the most important approaches to stabilize the pressure of the bottom formation and prevent blowout through the drilling process.
Saeed Zaker, Pegah Sarafzadeh, Amin Ahmadi, Seyyed Hamid Esmaeili-Faraj, Roohollah Parvizi   +4 more
doaj   +1 more source

Research Progress on Barite Recovery Technology from High-density Waste Drilling Fluid

Kuangchan zonghe liyong
With the increasing exploitation of unconventional oil and gas fields, the problem of recycling barite in high-density waste drilling fluid is becoming more and more prominent.
Yu BAI, Shuixiang XIE, Yu XU, Duoqi WANG, Yuanpeng CHENG, Shanfa TANG   +5 more
doaj   +1 more source