Results 61 to 70 of about 20,814 (259)

Notable Impact of Paleotectonic Stress on Gold Mineralisation in the West Qinling Orogen

Geological Journal, EarlyView.
By applying fuzzy clustering and multiple inverse methods, we systematically processed the data of vein and fault slip in this ore deposit to reveal the transition of orogenic geological environment and paleotectonic stress field. Our research results show two different stress states: the northwest–southeast extensional stress field and the northeast ...
Hongyan Wang, Aibing Chen, Jian Yang, Yuan Zhang   +3 more
wiley   +1 more source

Immobilization of chlorite dismutase for continuous treatment of chlorite in water systems [PDF]

, 2021
Presented by: Marcela Vega – Post-doc at University of Illinois at Urbana-Champaign Co-authors: Jeremy Guest, Julie Zilles Abstract: Chlorite is a drinking water contaminant produced as a disinfection by-product and an intermediate in the degradation of ...
Vega, Marcela
core  

BIF-hosted high-grade magnetite iron ore targeting by hyperspectral wavelength mapping of chlorite: case study of Qidashan Iron Mine, northeast China

Geocarto International, 2023
There are two kinds of chlorites occurred in Anshan area, among which the hydrothermal Fe-chlorite with longer Fe-OH wavelength is spatially related to the high-grade magnetite ore, meaning that wavelength mapping of chlorites can be used to target the ...
Yuzeng Yao, Zining Li, Jing Liu, Jianfei Fu, Tingting Hou, Yongli Zhang   +5 more
doaj   +1 more source

Lithium Isotopic Compositions of Mesozoic and Cenozoic Basalts From South-Eastern China: Implications for Extremely Low δ7Li of Continental-Type Eclogites

Frontiers in Earth Science, 2022
Lithium isotope geochemical studies of oceanic-type eclogites benefited from previous investigation of altered oceanic crust; however, processes of lithium isotope exchange operating on altered protoliths of continental-type eclogites have remained ...
Cheng-Long Yu, Yilin Xiao, Yilin Xiao, Yang-Yang Wang, Olivier Nadeau, He Sun, He Sun, Hong-Qiong Wan, Dong-Yong Li, Xiao-Xia Wang, Dong-Bo Tan   +10 more
doaj   +1 more source

Geochemistry and Geochronology of Magmatic Rocks in Southwestern and Northeastern Cambodia: Implications for the Tectonic Evolution and Metallogenesis of the Loei Fold Belt

Geological Journal, EarlyView.
The composition of intrusive rocks suggests that the magma was likely generated in a subduction‐related setting. The arc crustal thickness in the Phnom Sro Ngam and Halo Prospects was probably < 40 km during emplacement. Zircon U–Pb age range indicates a correlation with Loei Fold Belt magmatic activity.
Sirisokha Seang, Khin Zaw, Kakda Kret, Ivan Belousov, Kotaro Yonezu, Koichiro Watanabe, Charles Makoundi   +6 more
wiley   +1 more source

Microbial reduction of chlorite and uranium followed by air oxidation [PDF]

, 2011
To evaluate the stability of biogenic nanoparticulate U(IV) in the presence of an Fe(II)-rich iron-bearing phyllosilicate, we examined the reduction of structural Fe(III) in chlorite CCa-2 and uranium(VI) by Shewanella oneidensis MR-1, and the ...
Dong, Hailiang, Kemner, Kenneth M., Zhang, Gengxin, Bishop, Michael E., Gengxin Zhang, Michael E. Bishop, Senko, John M., Boyanov, Maxim, Maxim I. Boyanov, John M. Senko, William D. Burgos, Burgos, William D., Kenneth M. Kemner, Hailiang Dong   +13 more
core   +2 more sources

A Reassessment of Petrochemistry of ~1.2 Ga Tonalitic Rocks of the Northern Tugela Terrane, Natal Metamorphic Belt, South Africa: Further Constraints on the Evolution of This Belt

Geological Journal, EarlyView.
Our petrochemical studies on ~1.2 Ga granitoids of the Natal Metamorphic Belt, South Africa, do not suggest any property similar to Phanerozoic‐style subduction‐related granitoids. Plot of Kotongweni Tonalite in Y versus Sr diagram (after Moyen 2011), note that most samples have Sr/Y < 50.
Palesa Leuta, Saumitra Misra, Thembiso O. Basupi   +2 more
wiley   +1 more source

Albite-chlorite and talc-chlorite deposits in metasedimantary and granitoid rocks of central Sardinia (Italy) [PDF]

, 2002
The albite and talc-chlorite deposits occurring in central-eastern Sardinia are associated with metasedimentary rocks with intrusions of Hercynian granitoids which contain abundant roof pendants of Palaeozoic metasedimentary rocks.
GRILLO, SILVANA MARIA, FIORI, MADDALENA
core   +2 more sources

Determination of chlorite in water by resonance scattering spectrometry with Methylene blue

Gongye shui chuli
In CH3COONa-HCl buffer solution, ClO2- oxidizes excess I- to generate I3-, and I3- forms complex particles with positively charged methylene blue under electrostatic attraction, which enhances the resonance scattering intensity of the system.
HUANG Nianhua, HUANG Silin, LU Hongye, MA Lu, LING Shaoming   +4 more
doaj   +1 more source

Long‐Term Combined Application of Biochar and Chemical Fertilizers Enhances Potassium Supply Capacity in Continuous Cropping Soils

Land Degradation &Development, EarlyView.
ABSTRACT Sustaining soil potassium (K) supply in intensive continuous cropping systems is increasingly challenging because long‐term crop removal often exceeds the natural replenishment capacity of soil K‐bearing minerals, leading to progressive depletion of plant‐available K pools.
Hangming Guo, Shunguo Liu, Zefang Zhu, Kangbo Xu, Jing Wang, Wenda Wang, Na Li, Jinfeng Yang   +7 more
wiley   +1 more source