Results 21 to 30 of about 27,756 (243)
Near Infrared Spectroscopic Study of Trioctahedral Chlorites and Its Remote Sensing Application
Open Geosciences, 2019 The mineral chemistry of thirteen trioctahedral chlorite samples from four regions in northwestern China, having a wide range of Fe and Mg contents and relatively constant Al and Si contents, were studied via raman spectroscopy, near infrared (NIR ...
Yang Min +7 more
doaj +1 more source
International Journal of Economic and Environment Geology, 2020 A likely tuff bed lies along the gradational contact of the Middle and Upper Siwaliksineastern Sulaiman Range, Taunsa areaofDera GhaziKhan district, Pakistan.
Rahman Ullah, Nie Fengjuin, Zhang Chengyong, Saqib Izhar, Idrees Safdar, Zhang Xin, Asim Ali
doaj +1 more source
Frontiers in Earth Science, 2023 Wide areas of the Southern sector of Ecuador are characterized by Cretaceous mafic volcanic rocks, pervasively altered by a propylitic mineralogical assemblage with epidote, chlorite, and quartz with minor titanite, illite and prehnite.
Paolo Fulignati +9 more
doaj +1 more source
PT-FORMATION CONDITIONS OF POLYMETALLIC ORES FROM THE Pb-Zn-Fe AKTASH SKARN DEPOSIT (WESTERN KARAMAZAR, TAJIKISTAN) [PDF]
Минералогия, 2021 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.
U.A. Yatimov +2 more
doaj +1 more source
Experimental study on reaction of chlorite with CO2 aqueous solution
Youqicang pingjia yu kaifa, 2022 During the reaction between CO2 and rocks, there is a synergistic/coupling effect among minerals because the rocks contain quartz, potassium feldspar, albite and other components, which promotes or inhibits the reaction process to a certain extent.
DENG Jiasheng +5 more
doaj
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 +13 more
core +1 more source
Бюллетень Почвенного института им. В.В. Докучаева, 2023 The structure of the soil cover at the territory of the clayey semidesert of the Northern Caspian Sea is represented by triparted soil complex and peculiar soils like solod.
E. B. Varlamov +4 more
doaj +1 more source
Geophysical Monograph Series, Page 435-447., 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.
Peter E. Marshall +2 more
wiley +1 more source
Experimental diagenesis using present-day submarine turbidite sands
Frontiers in Earth Science, 2022 Hydrothermal-reactor experiments were conducted to investigate the potential formation of chlorite and microquartz grain coatings on detrital quartz and feldspar grains, and to understand their role in inhibiting the formation of quartz and feldspar ...
Abdulwahab Muhammad Bello +6 more
doaj +1 more source
Dizhi lixue xuebaoObjective The Haopinggou Ag-Au polymetallic deposit is a typical intermediate-sulfidation epithermal deposit in the Xiong'ershan ore concentration area. Ag-Pb-Zn mineralization mainly occurs in steeply dipping veins and breccia matrix.
LIU Songyan +9 more
doaj +1 more source