Results 21 to 30 of about 20,777 (267)

Experimental diagenesis using present-day submarine turbidite sands

open access: yesFrontiers 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

Formation mechanism of authigenic chlorite in tight sandstone and its influence on tight oil adsorption, Triassic Ordos Basin, China

open access: yesEnergy Exploration & Exploitation, 2020
In this study, the formation mechanism of authigenic chlorite in tight reservoirs and its influence on the adsorption capacity to tight oil have been analyzed.
Qianshan Zhou   +5 more
doaj   +1 more source

Safety and efficacy of natural mixtures of talc (steatite) and chlorite (E 560) as a feed additive for all animal species

open access: yesEFSA Journal, 2018
The additive is a natural mixture of talc and chlorite (NTMC) that contains at least 75% of talc and chlorite as main components. The additive is intended for use as a technological additive (functional groups: (i) anticaking agents) in premixtures and ...
EFSA Panel on Additives and Products or Substances used in Animal Feed (FEEDAP)   +25 more
doaj   +1 more source

Insights into the structural evolution of the pre-Variscan rocks of the Eastern Pyrenees from La Molina quartz veins; constraints on chlorite and fluid inclusion thermometry

open access: yesGeologica Acta, 2020
Quartz veins hosted in the infra and overlying series to the (Sardic) Upper Ordovician Unconformity provide new insights into the structural and thermal evolution of the pre-Variscan rocks of the Eastern Pyrenees.
E. González-Esvertit   +3 more
doaj   +1 more source

THE STRUCTURE OF THE CHLORITES [PDF]

open access: yesProceedings of the National Academy of Sciences, 1930
By the application of the same methods of investigation as those used in the study of the micas,(1) I have determined the structure of the chlorites, a group of minerals morphologically similar but distinctly different in chemical composition. This structure is described in the following paragraphs.
openaire   +2 more sources

Diagenesis of the Sedimentary Fe–Ni Deposits of Euboea: Evidence Based on Phyllosilicate Mineralogy

open access: yesMaterials Proceedings, 2021
A set of samples with different textures from the sedimentary Fe–Ni deposits of Central Euboea, Greece, were studied with XRD and SEM-EDS to investigate the relationships between phyllosilicates present.
Spyros Cheliotis-Chatzidimitriou   +2 more
doaj   +1 more source

Al-free di-trioctahedral substitution in chlorite and a ferri-sudoite end-member [PDF]

open access: yes, 2016
International audienceA compilation of Fe 3+-bearing chlorite analyses is used: (1) to investigate the Al-free di-trioctahedral (AFDT) substitution 2Fe 3+ + □ = 3(Mg,Fe 2+) in chlorite; and (2) to estimate the composition of a ferri-sudoite end-member ...
Trincal, Vincent   +3 more
core   +1 more source

Mineralization of the Tuwu Porphyry Cu Deposit in Eastern Tianshan, NW China: Insights From In Situ Trace Elements of Chlorite and Pyrite

open access: yesFrontiers in Earth Science, 2021
The Tuwu porphyry copper deposit is located on the Dananhu-Haerlik island arc in eastern Tianshan, NW China. Based on geology, petrology, and in situ trace element studies of pyrite and chlorite, we redefined the characteristics of hydrothermal fluids ...
Wei Tan   +6 more
doaj   +1 more source

The chlorite adduct of aquacobalamin: contrast with chlorite dismutase

open access: yesJBIC Journal of Biological Inorganic Chemistry
Abstract In the reaction of aquacobalamin (aquaCbl) with chlorite, a stable species is detected and assigned as a Co(III)–chlorite complex, Co(III)–OClO−. Its UV–Vis spectrum is almost identical to that of aquaCbl, except for some minor differences at ~ 430 nm; cyanide can eliminate and prevent these changes.
Lehene, Maria   +6 more
openaire   +3 more sources

Near Infrared Spectroscopic Study of Trioctahedral Chlorites and Its Remote Sensing Application

open access: yesOpen 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

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