Results 11 to 20 of about 49,779 (247)

Synthesis of Ultrathin Biotite Nanosheets as an Intelligent Theranostic Platform for Combination Cancer Therapy

open access: yesAdvanced Science, 2019
Biotite, also called black mica (BM), is a group of sheet silicate minerals with great potential in various fields. However, synthesis of high‐quality BM nanosheets (NSs) remains a huge challenge.
Yong Kang, Jiang Ouyang, Na Yoon Kim
exaly   +2 more sources

GEOCHEMISTRY OF TRACE ELEMENTS IN ROCK-FORMING MINERALS OF GNEISSES AND GRANITES OF THE MURZINKA GRANITE AREA, CENTRAL URALS [PDF]

open access: yesМинералогия, 2020
The Murzinka granite area (Central Urals), which combines Murzinka granite pluton and underlying rocks of the Murzinka-Adui metamorphic complex, exhibits an evident WE-trending geochemical zonation of magmatism with increasing of Rb, Li, Nb and Ta ...
S.V. Pribavkin   +2 more
doaj   +1 more source

Potassium at the Origins of Life: Did Biology Emerge from Biotite in Micaceous Clay?

open access: yesLife, 2022
Intracellular potassium concentrations, [K+], are high in all types of living cells, but the origins of this K+ are unknown. The simplest hypothesis is that life emerged in an environment that was high in K+.
Helen Greenwood Hansma
doaj   +1 more source

Petrology, geochemistry, source and tectonic setting of Malek Chah Ruii granitoid (East of Lut Block) [PDF]

open access: yesپترولوژی, 2021
The Malek Chah Rouii granitoid pluton is exposed within the Deh-Salm metamorphic complex in the eastern margin of the Lut zone. The studied granitoid with peraluminous and calc-alkaline nature is composed of tonalite, granodiorite, and granite (monzo ...
Abadullah Toulabi Nejad   +4 more
doaj   +1 more source

Geothermobarometry of Sarmeshk granitoids in the Northwest of Sarduiyeh [PDF]

open access: yesپترولوژی, 2018
The Sarmeshk granitoid pluton is located in southeast of the Urumieh-Dokhtar magmatic zone in the Kerman province. Based on petrographic studies, the granitoid consist of three rock type of diorite, granodiorite and monzogranite. They are mainly composed
Asma Nazarinia   +3 more
doaj   +1 more source

Characterization of potassic alteration in the Iju porphyry copper deposit using mineral chemistry of biotite and chlorite [PDF]

open access: yesپترولوژی, 2018
The Iju porphyry copper deposit is located 72 km NE of Shahr-e- Babak in the western part of the Dehaj - Sardueih zone in the Kerman Cenozoic volcano - plutonic belt.
Alireza Zarasvandi   +4 more
doaj   +1 more source

Discriminating Tectonic Setting of Igneous Rocks Using Biotite Major Element chemistry−A Machine Learning Approach

open access: yesGeochemistry, Geophysics, Geosystems, 2021
The composition of igneous biotite is a potential indicator of the geologic environment of its host rock. Here, we apply two machine learning models−eXtreemly Greedy tree Boosting (XGBoost) and light gradient boosting machine (LightGBM) to classify ...
Rupashree Saha   +2 more
doaj   +1 more source

Dissolution of silicate minerals and nutrient availability for corn grown successively [PDF]

open access: yesPesquisa Agropecuária Brasileira, 2022
The objective of this work was to evaluate the nutrient availability for corn (Zea mays) grown successively in pure and ground biotite schist and biotite syenite rock samples.
Luise Lottici Krahl   +4 more
doaj   +1 more source

Detrital Mica Composition Quantitatively Indicates the Sediment Provenance along the Subei Coast to the Yangtze Estuary

open access: yesApplied Sciences, 2022
The influence of large rivers on the Subei littoral plain area requires more research than the results that have been available up to now. Thus, specific diagnostic indices of detrital mica are successfully applied for the first time to identify the ...
Zhicheng Dong, Lina Zhang, Bingfu Jin
doaj   +1 more source

Amphibole and biotite of melanocratic rocks from the Ural granitic massifs: composition, relationship, petrogenetic consequences

open access: yesЛитосфера, 2020
Research subject. The article discusses the features of the relationship between biotite and amphibole on the example of magmatogene melanocratic rocks from a number of granitoid massifs of the Urals. These rocks form xenoliths and synplutonic intrusions
S. V. Pribavkin
doaj   +1 more source

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