Results 21 to 30 of about 2,908 (168)

Infrared Absorption in Microcline [PDF]

, 1966
Infrared absorption spectra appearing on the microcline specimens, collected from the Ishikawa pegmatite deposit in Fukushima Prefecture, Japan, have been prudently inspected especially by means of polarised radiation.
UMEGAKI, Yoshiharu, IIISHI, Kazuaki
core   +1 more source

Zeta potential prediction of dominant sandstone minerals via surface complexation modelling

Scientific African, 2023
Numerous injection water compositions have been developed by various researchers to optimize the oil recovery via wettability alteration. The ionic composition of the injected brine plays a profound role in the rock/brine and crude-oil/brine interfacial ...
Samuel Erzuah, Wilberforce Nkrumah Aggrey, Joel Teye Tetteh, Vida Bodi, Caspar Daniel Adenutsi, Yen Adams Sokama-Neuyam, Kwame Sarkodie, William Ampomah, Godfred Ohemeng-Boahen, Kwabena Biritwum Nyarko   +9 more
doaj   +1 more source

Monte Carlo simulation of interfacial adhesion between geopolymer binders and mineral aggregates

Конденсированные среды и межфазные границы
Silico-aluminophosphate and alkali-aluminosilicate geopolymers are increasingly popular as a green alternative to traditional Portland cement concrete used in the construction industry.
Yakov M. Ermolov, Andrey A. Vasilchenko, Vasily B. Mischinenko   +2 more
doaj   +1 more source

Pegmatites of the Mokromoskovsk granite pluton

Вісник Харківського національного університету імені В.Н. Каразіна. Серія Геологія. Географія. Екологія
Introduction. The Mokromoskovsky pluton is composed of light gray granites and dark gray granodiorites. Light gray granites are composed of oligoclase (35-40%), microcline (20-25%), quartz (30-35%), and biotite (2-5%).
Yuliia Lytvynenko
doaj   +1 more source

Searching criterions and indications of gold mineralization in potash alkaline massifs (on example deposits and displays ore Aldanskiy Shield)

Литосфера, 2017
The deposits and displays ore of gold in the Mezozoic potash alkaline massifs Aldanskiy shield was the research objects. There are Rybinovoe and Novoe gold deposit in the Rybinovskiy alkaline complex and displays of gold in the Yakokutskiy, Yllymakhskiy,
Gennadii P. Dvornik
doaj   +1 more source

Sur le microcline du Vizézy

, 1905
Gonnard Ferdinand. Sur le microcline du Vizézy. In: Bulletin de la Société française de Minéralogie, volume 28, 1, 1905. pp.
Gonnard, Ferdinand
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A first-principles machine-learning force field for heterogeneous ice nucleation on microcline feldspar

, 2023
The formation of ice in the atmosphere affects precipitation and cloud properties, and plays a key role in the climate of our planet. Although ice can form directly from liquid water at deeply supercooled conditions, the presence of foreign particles can
Piaggi, Pablo M., Debenedetti, Pablo G., Pablo M. Piaggi, Car, Roberto, Athanassios Z. Panagiotopoulos, Selloni, Annabella, Roberto Car, Annabella Selloni, Pablo G. Debenedetti, Panagiotopoulos, Athanassios Z.   +9 more
core   +1 more source

Absolute Ages and Geological Investigations on the Rocks in the Area of Around Syowa Station, East Antarctica

Antarctic Record, 1974
The K-Ar age determination on micas from the metamorphic rocks and granites in the Ongul Islands and Lang Hovde areas gave the following results: Metabasites 463, 467, 515, 517, 533 and 539 m.y. Biotite gneiss 560 m.y.
Keizo YANAI, Yoshio UEDA
doaj   +1 more source

Monitoring zeolite NaY formation from potassium-rich Nigerian kaolinite clay

Ain Shams Engineering Journal, 2018
This work focuses on the successful synthesis of NaY zeolite from highly contaminated kaolinite clay, while investigating the effect of metakaolinization temperature and aging on role of potassium in zeolitization.
O.A. Ajayi, S.S. Adefila, M.T. Ityokumbul   +2 more
doaj   +1 more source

Heterogeneous Exhumation Mechanisms in Neoproterozoic Collisional Metamorphism: P–T Constraints From Pelotas and Punta del Este Terranes, Southern Brazil and Uruguay

Geological Journal, EarlyView.
Petrography, thermobarometry, and pseudosection modelling reveal peak metamorphic conditions of 3–7.5 kbar and 520°C–800°C in Tonian‐Cryogenian orthogneisses of the Dom Feliciano Belt. Metamorphic field gradients of 27°C/km–39°C/km and variable exhumation mechanisms support correlation of these units as remnants of a Himalayan‐type Piratini Orogeny ...
Thaiane Niederauer‐Santos, Carla Cristine Porcher, Daniel Triboli Vieira, Edinei Koester, Diego Jaldín, Karina Luengo, Luisa Caon   +6 more
wiley   +1 more source