Geology, Fluid Inclusion, and H–O–S–Pb Isotope Constraints on the Mineralization of the Xiejiagou Gold Deposit in the Jiaodong Peninsula by Peng Chai, Zeng-qian Hou, Hong-rui Zhang, Lei-lei Dong

“…Three types of primary fluid inclusions were distinguished in the Xiejiagou deposit, including carbonic-aqueous, pure carbonic, and aqueous inclusions. …”
Get full text

Experimental Investigation of MgAl-NO2 and MgAl-CO3 LDHs on Durability of Mortar and Concrete by Zhanguo Li, Huan Du, Zigeng Wang, Caiyun Jin, Yue Li

“…In addition, the effects of LDHs on pore structure, chloride resistance, carbonation resistance, shrinkage, and creep of concrete were investigated by SEM, mercury injection test, XRD, chloride ion diffusion coefficient test, chloride salt corrosion depth test, carbonation depth test, shrinkage test, and creep test. …”
Get full text

Effect of Metakaolin on the Diffusion Properties of Chloride Ions in Cement Mortar under the Coupling Effect of Multiple Factors in Marine Environment by Yezhen Yuan, Kaimin Niu, Bo Tian, Lijuan Kong, Lihui Li

“…To address the problem of chloride ion transport in cement concrete in marine environment, this study investigates the effect of metakaolin dosage on the chloride ion diffusion resistance of mortar and its mechanism by testing the chloride ion binding capacity and microstructure of mortar under the coupling effect of chlorine salt-sulfate-carbonation multiple factors. The results show that the coupling of sulfate or carbonation reduces chloride ion transport to some extent compared with single chlorine salt attack, while the three-factor coupled environment promotes free chloride ion diffusion. …”
Get full text

Layered Double Hydroxides as Effective Adsorbents for U(VI) and Toxic Heavy Metals Removal from Aqueous Media by G. N. Pshinko

“…[Zn4Al2(OH)12]·EDTA·nH2O is recommended for practical application as one of the most efficient and inexpensive synthetic adsorbents designed for recovery of both cationic and particularly important anionic forms of U(VI) and other heavy metals from aqueous media. Carbonate forms of LDHs turned out to be most efficient for recovery of Cu(II) from aqueous media with pH0≥7 owing to precipitation of Cu(II) basic carbonates and Cu(II) hydroxides. …”
Get full text

Devonian-Carboniferous boundary beds in the Vorkuta transverse uplift (Bolshaya Usa River) by A.V. Zhuravlev, A.N. Plotitsyn, Y.A. Vevel, A.V. Erofeevskiy

“….), which is mainly composed of microbial, algal, and bioclastic carbonates (wackestone), contains poor conodont and foraminifer associations. …”
Get full text

Fate and Distribution of Heavy Metals in Wastewater Irrigated Calcareous Soils by Mohammed Hashem Stietiya, Mohammad Duqqah, Theophilus Udeigwe, Ruba Zubi, Tarek Ammari

“…Following metal addition, Zn and Ni were distributed among the carbonate and Fe/Mn oxide fractions, while Cd was distributed among the exchangeable and carbonate fractions in both soils. …”
Get full text

Characteristics of an Altered Diabase Dike in a Coal Seam: A Case Study from the Datong Coalfield, Shanxi, China by Xiaoxia Song, Kaijie Li, Hongtao Ma, Dongna Liu, Jingui Zhao, Jiarui Zhou

“…The results suggest that the mineral alteration is associated with severe carbonation and clavization. The carbonation of mafic minerals is due to the release of CO2 generated from the coking of high volatile bituminous coals that may have occurred during the intrusive event. …”
Get full text

Microbial Surface Treatment of Sand with Sporosarcina pasteurii to Improve the Wind Erosion Resistance in Urmia Lake by Hooshang Katebi, Ahmad Fahmi, Ahad Ouria, Alireza Babaeian Amini, Hossein Samadi Kafil

“…In this research, the potential of the microbially induced carbonate precipitation method for the surface treatment of sand samples of Jabal Kandi dunes, located in the adjacency of Urmia Lake in the northwest of Iran, was considered. …”
Get full text

Achievement of Early Compressive Strength in Concrete Using Sporosarcina pasteurii Bacteria as an Admixture by Rakesh Chidara, Rahul Nagulagama, Smitha Yadav

“…The bacterium is characterised with the ability to precipitate calcium carbonate in the presence of any carbonate source and is known for its resistive capacity in extreme temperature and pressure zones. …”
Get full text

Exploring the Pharmacological Potential of Carrageenan Disaccharides as Antitumor Agents: An In Silico Approach by Ohana Leticia Tavares Silva, Monique Gabriela das Chagas Faustino Alves, Hugo Alexandre Oliveira Rocha

“…Target prediction using SwissTarget and PPB2 identified five carbonic anhydrases, which are also targets of oncology drugs, as common targets for the disaccharides. …”
Get full text

Removal of dissolved toluene in underground water with nanowires of manganese oxide by Mohammad Hossein Tavakoli Dastjerdi, Ghasem Habibagahi, Arsalan Ghahramani, Ayoub Karimi-Jashni, Sedigheh Zeinali

“…The adsorption data compared to the adsorption of two kinds of activated carbons show that manganese oxide nanowire is competitive to activated carbons. …”
Get full text

PT-FORMATION CONDITIONS OF POLYMETALLIC ORES FROM THE Pb-Zn-Fe AKTASH SKARN DEPOSIT (WESTERN KARAMAZAR, TAJIKISTAN) by U.A. Yatimov, N.N. Ankusheva, M.A. Rassomakhin

“…Fluid inclusions are studied in calcite from magnetite ores and sulfide-carbonate veins of the Aktash sulfide-magnetite deposit (Western Karanazar, Tajikistan) to identify their formation conditions. …”
Get full text

Groundwater Quality Assessment in a Karst Coastal Region of the West Aurunci Mountains (Central Italy) by Giuseppe Sappa, Silvia Iacurto, Flavia Ferranti, Francesco M. De Filippi

“…Results suggest that carbonate weathering, ion exchange, and seawater intrusion in this karst coastal region are the major factors controlling groundwater geochemistry. …”
Get full text

The Enrichment Mechanism of REE at Sulfate and Methane Transition Zone (SMTZ) of the Northern Part of the South China Sea by Xie Rui, Wu Daidai, Wei Jiangong, Wang Liaoliang, Liu Lihua, Li Wenjing, Wu Gang, Guo Xudong

“…In contrary, the REE-rich carbonate phase and REE-rich Fe-Mn oxides (hydroxides) phase have important contribution of REE enrichment at the top of SMTZ. …”
Get full text

Analysis of Hydrogeochemical Characteristics of Tunnel Groundwater Based on Multivariate Statistical Technology by Chen Peng, Yuanming Liu, Huiyu Chen, Qiaowei Yuan, Qingzhi Chen, Shilong Mei, Zhonghu Wu

“…Clusters 1 and 5 of groundwater represent weathering, dissolution, and ion exchange of carbonate and sulfate rocks and are closely related to the lithologic limestone, limestone intercalated with carbonaceous mudstone, carbonaceous mudstone, and coal-measure strata in the aquifer. …”
Get full text

Pore-Size Distribution Evolution of Intact, Compacted, and Saturated Loess from China during Consolidation and Shearing by Ping Li, Shengjun Shao, Tao Xiao, Dandan Zhu

“…As a result, the stability of a pore is controlled not only by its size but also by carbonate cementations at surrounding particle contacts. …”
Get full text

A review on egg waste-based adsorbents for the removal of organic and inorganic contaminants from aqueous solution by Alusani Manyatshe, Linda Lunga Sibali

“…Characterisation techniques showed that the raw eggshells and membranes consisted mainly of calcium carbonate (CaCO3) and proteins (amine and carboxylic groups). …”
Get full text

Genesis of the Daping Gold Deposit in the Middle Xuefeng Mountain Area, Southern China: Constraints from Geochemistry, Fluid Inclusion, and H-O-S Isotope by Xu Kong, Wen-Tian Mi, Xue-Yuan Qi, Shu-Jun Lǚ, Yu-Jun Dong, Jie Xin

“…Four stages of mineralization/alteration were identified: the first stage has mineral assemblages of quartz+pyrite+arsenopyrite±carbonate minerals, the second stage has mineral assemblages of quartz+polymetallic sulfide minerals (pyrite, arsenopyrite, chalcocite, galena, chalcopyrite, tetrahedrite)±chlorite±carbonate minerals, the third stage has mineral assemblages of quartz and carbonate minerals, and the supergene stage is characterized by limonite±patina which were formed by the oxidation of metal sulfides. …”
Get full text

Microwave Irradiation of Nanohydroxyapatite from Chicken Eggshells and Duck Eggshells by Nor Adzliana Sajahan, Wan Mohd Azhar Wan Ibrahim

“…Both chicken and duck eggshells are mainly composed of calcium carbonate. An attempt has been made to fabricate nanohydroxyapatite (nHA) by chicken (CES) and duck eggshells (DES) as calcium carbonate source (CaCO3). …”
Get full text

Revisiting Controls on Shale Oil Accumulation in Saline Lacustrine Basins: The Permian Lucaogou Formation Mixed Rocks, Junggar Basin by Chenjia Zhang, Jian Cao, Erting Li, Yuce Wang, Wenyao Xiao, Yang Qin

“…Results show that the Lucaogou Formation consists mainly of carbonate rocks, dolomitic or calcareous mudstones, tuffaceous or silty mudstones, and siltstones. …”
Get full text