Results 81 to 90 of about 4,712 (178)

The making of pure quartzose sand in continental interiors: Paraná River (Brazil and Argentina)

Sedimentology, Volume 73, Issue 3, Page 802-837, April 2026.
ABSTRACT As part of a comprehensive project on sedimentary processes in South America, this study focuses on sediment generation in the intracratonic Paraná Basin and monitors the evolution of sand composition along the Paraná River from central Brazil to the Río de la Plata estuary in Argentina.
Eduardo Garzanti, Marta Barbarano, Mara Limonta, Guido Pastore, Pieter Vermeesch, Giovanni Vezzoli   +5 more
wiley   +1 more source

Probing the surface electrical properties of clay minerals with electrostatic force microscopy and kelvin probe force microscopy

Materials Research Express
Many surface processes of clay minerals require in-depth understanding of their surface electrical properties, such as surface charge density, surface potential distribution, etc In this paper, electrostatic force microscopy (EFM) and Kelvin probe force ...
Zonghua Qin, Xin Nie, Wenbin Yu, Shuguang Yang, Zongke Zhou, Shuqin Yang, Quan Wan   +6 more
doaj   +1 more source

Evidence of the Formation of Crystalline Aluminosilicate Phases in Glass-Ceramics by Calcination of Alkali-Brick Aggregates, Enabling Cs⁺, Rb⁺, Co²⁺, and Sr²⁺ Encapsulation

Applied Sciences
The feasibility of using brick aggregates for the preparation of aluminosilicate “glass-ceramic” forms as a novel cementitious composite capable of immobilizing radioactive elements was examined. Raw brick was initially activated with sodium hydroxide. X-
Abdel Boughriet, Gildas Doyemet, Nicole Poumaye, Véronique Alaimo, Sandra Ventalon, Viviane Bout-Roumazeilles, Michel Wartel   +6 more
doaj   +1 more source

The Morphological Characteristics of Clay Minerals in a Tight Sandstone Reservoir by Atomic Force Microscopy

Yankuang ceshi
Clay minerals, as one of the main components of unconventional oil and gas reservoirs, have significant implications for the evaluation of unconventional oil and gas reservoirs in terms of their fine characterization of nano/sub-nano morphological ...
Kunyang WANG, Gu DU, Guan WANG, Jiale HE
doaj   +1 more source

Differentiation of substance composition in the Typical Agrochernozems (Haplic Chernozems) of the Western Ukrainian Forest-Steppe

Журнал Белорусского государственного университета: География, геология, 2017
The study found in the Wet Atlantic facies of the Forest-Stepper Сhernozems of Ukraine soil formation leads to the vertical redistribution of Chernozem soil substance and formation of the mineral soil profile differentiated to varying degrees by ...
Ihor Y. Papish
doaj  

Analysis of the influence of the aluminosilicate sorbents on the immobilization of ¹³⁷Cs in the cement compound and its mechanical strength

Весці Нацыянальнай акадэміі навук Беларусі: Серыя фізіка-тэхнічных навук
Studies have been carried out to determine the main parameters characterizing the quality of cement compounds: 137Cs leaching rate and mechanical strength.
T. G. Leontieva, L. N. Maskalchuk, A. A. Baklay, N. A. Makovskaya   +3 more
doaj   +1 more source

Mineralogical analyses in Peştera Polovragi (Olteţului Gorges) and Peştera Muierii (Galbenului Gorges), Gorj county

Travaux de l'Institut de Speologie Emile Racovitza, 2009
Following a series of cave mineralogy researches in Peştera Polovragi and Peştera Muierii, Gorj County, we evidence an association made up of hydroxylapatite, taranakite, calcite and secondarily of quartz and illite and respectively, of hydroxylapatite ...
GABRIEL DIACONU, DELIA DUMITRAŞ, ŞTEFAN MARINCEA   +2 more
doaj  

Mineralogical researches in "Peștera cu Lilieci din satul Peștera", Bran-Rucăr Passage

Travaux de l'Institut de Speologie Emile Racovitza, 2008
By means of X-rays diphractometric analyses on powders, we evidence an association of minerals in “Peştera cu Lilieci din satul Peştera”, made up of hydroxylapatite(carbonate-hydroxylapatite), brushite, taranakite, calcite, quartz, illite and ...
GABRIEL DIACONU, ȘTEFAN MARINCEA, DELIA DUMITRAȘ   +2 more
doaj  

Molecular Simulation Study of CO₂ Adsorption and Sequestration on Clay Minerals under Geological Conditions. [PDF]

ACS Omega
Zheng Y, Li M, Liu X, Zhang S, Xiao H, Shi F, Dong S.   +6 more
europepmc   +1 more source

Eco-Friendly Illite as a Sustainable Solid Lubricant in Calcium Grease: Evaluating Its Thermal Stability, Tribological Performance, and Energy Efficiency. [PDF]

Materials (Basel)
Steffy M, Bhaumik S, Choudhury ND, Paleu V, Florea V.   +4 more
europepmc   +1 more source