Results 11 to 20 of about 27,756 (243)

The role of randomly mixed-layered chlorite/smectite in the transformation of smectite to chlorite [PDF]

, 1997
Vesicular and groundmass phyllosilicates in a hydrothermally altered basalt from the Point Sal ophiolite, California, have been studied using transmission electron microscopy (TEM).
Bettison-Varga, Lori, Bettison-Varga, L., Mackinnon, Ian D.R., Mackinnon, I.D.R.   +3 more
core   +1 more source

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

, 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, Vincent Trincal, Pierre Lanari, Lanari, Pierre   +3 more
core   +2 more sources

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

EFSA 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), Guido Rychen, Gabriele Aquilina, Giovanna Azimonti, Vasileios Bampidis, Maria de Lourdes Bastos, Georges Bories, Andrew Chesson, Pier Sandro Cocconcelli, Gerhard Flachowsky, Boris Kolar, Maryline Kouba, Secundino López Puente, Marta López‐Alonso, Alberto Mantovani, Baltasar Mayo, Fernando Ramos, Maria Saarela, Roberto Edoardo Villa, Robert John Wallace, Pieter Wester, Anne‐Katrine Lundebye, Carlo Nebbia, Derek Renshaw, Matteo Lorenzo Innocenti, Jürgen Gropp   +25 more
doaj   +1 more source

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

Materials 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, Georgios E. Christidis, Ioannis Marantos   +2 more
doaj   +1 more source

THE STRUCTURE OF THE CHLORITES [PDF]

Proceedings 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

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

Geologica 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, A. Canals, J.M. Casas, F. Nieto   +3 more
doaj   +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

Frontiers 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, Wei Tan, Qigui Mao, Mingjie Yu, Yan Sun, Xiaoqiang Lv, Xiaoqiang Lv   +6 more
doaj   +1 more source

The Relationship between Chlorite and Reservoir Quality in the Huagang Formation, Xihu Depression, China

Energies, 2022
Low permeability tight gas resources account for 90% of the Xihu Sag. Under the background of extensive development of low permeability and tight reservoirs, the key to economic and effective development is to find sweet reservoir formation.
Dongping Duan, Xianguo Zhang, Binbin Liu, Jianli Lin, Wenguang Wang   +4 more
doaj   +1 more source

Deciphering temperature, pressure and oxygen-activity conditions of chlorite formation [PDF]

, 2016
International audienceThe advantages and limits of empirical, semi-empirical and thermodynamic methods devoted to the estimation of chlorite-formation temperature are discussed briefly.
Manuel Munoz, Franck Bourdelle, Vincent De Andrade, Olivier Vidal, Munoz, Manuel, Pierre Lanari, Vidal, Olivier, Lanari, Pierre, de Andrade, Vincent, Bourdelle, Franck   +9 more
core   +2 more sources

The chlorite adduct of aquacobalamin: contrast with chlorite dismutase

JBIC 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, Zagrean-Tuza, Cezara, Iancu, Stefania D., Cosma, Sergiu-Raul, Brânzanic, Adrian M. V., Silaghi-Dumitrescu, Radu, Stoean, Bianca   +6 more
openaire   +3 more sources