Results 21 to 30 of about 868 (182)
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 +9 more
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Monte Carlo simulation of interfacial adhesion between geopolymer binders and mineral aggregates
Конденсированные среды и межфазные границыSilico-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 +2 more
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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
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Pegmatites of the Mokromoskovsk granite pluton
Вісник Харківського національного університету імені В.Н. Каразіна. Серія Геологія. Географія. ЕкологіяIntroduction. 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
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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
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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 +2 more
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MORPHOLOGICAL NOTES ABOUT AMAZONITE [PDF]
Минералогия, 2018 Morphological features of amazonite cause some onthogenic models of K-feldspars. The crystals of amazonite are zonal and sectorial. «Microcline lattice» of stresses in K-feldspar is formed after its growth during polymorphic transformation of monoclinic ...
V.A. Popov
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Archaeometry, EarlyView.Abstract Soils that contain swelling clay minerals (e.g., montmorillonite) expand and contract during wetting and drying, causing movement within the soil profile. This process, known as argilliturbation, can alter artefact distributions, destroy stratigraphy and complicate the interpretation of archaeological deposits.
Caroline Mather +11 more
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PETROGRAFIA E LITOQUÍMICA DO MAGMATISMO TARDI-OROGÊNICO TOLEÍTICO ALTO-K E DA SUÍTE PÓS-COLISIONAL ALCALINA SATURADA EM SÍLICA DE GOUVEIA (MG) [PDF]
Geochimica Brasiliensis, 2015 Close to Gouveia town (MG) and located inside granitoids and gneiss of the Gouveia Complex, porphyritic latites (or trachy-andesites) slightly metamorphosed are identified, with plagioclase and sanidine phenocrysts and matrix also feldspar-rich ...
Alexandre de Oliveira Chaves +5 more
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A Newly Discovered Tablet‐Making Facility in Nineveh: Insights From Scientific Analysis
Archaeometry, EarlyView.ABSTRACT This paper addresses the question of tablet technology in the Neo‐Assyrian capital city of Nineveh. Recent excavations in the lower town of Nineveh by the Iraqi–Italian Archaeological Expedition uncovered an exceptional assemblage of more than 200 tablets from an elite residence that appears to have included a scriptorium.
Mathilde Jean +7 more
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