Results 51 to 60 of about 2,698 (196)
Propiedades termoluminiscentes de una albita de minas Geraes (Brasil)
Boletín de la Sociedad Española de Cerámica y Vidrio, 2004 Albite sodium feldspar is studied by thermoluminescent methods using the blue region of the spectra (circa 400nm) and the possible uses as a dosimeter are explored.
García-Guinea, J. +5 more
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Earth, Planets and Space, 2020 Earthquake magnitude is closely related to the depth extent of the seismogenic zone, and higher magnitude earthquakes occur where the seismogenic zone is thicker.
Koji Masuda
doaj +1 more source
Terra Nova, EarlyView.ABSTRACT Significant porosity of more than 5% was found at depths of more than 8500 m in poorly sorted, calcareous mudstones of the Malmian Mikulov Formation. These overpressured rocks are the main hydrocarbon source rock in the Vienna Basin. Core samples from present‐day depths of 8150 m to 8550 m were analysed using X‐ray diffraction and scanning ...
Susanne Gier +3 more
wiley +1 more source
Petrology of blueschist facies metamorphic rocks of the Meliata Unit [PDF]
Acta Montanistica Slovaca, 1997 Meliata blueschists originated from basalts, limestones, pelites, psammitic and amphibolite facies basement rocks. Compositionally, the metabasalts have a geochemical signature mostly indicative of a transitional arc-MORB origin, but some mafic rocks ...
Faryad Shah Wali
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Rapid Communications in Mass Spectrometry, Volume 40, Issue 18, 30 September 2026.ABSTRACT Rationale Approximately 3–4 kg of NBS 19 limestone, prepared in 1982 by the U.S. Geological Survey (USGS), serves as a primary reference for the carbon isotope scales VPDB and VPDB‐LSVEC and the oxygen isotope scale VPDB. Its consensus values are +1.95‰ for δ13C and −2.2‰ for δ18O measurements.
Haiping Qi +3 more
wiley +1 more source
Fabrication of a Functional Composite Material Using Waste Concrete Powder and Polyethylene
Polymer Composites, Volume 47, Issue 15, Page 13480-13491, 10 August 2026.Preparation and experimental verification of functional composite materials using waste concrete powder and polyethylene. ABSTRACT This study investigated the fabrication of a functional composite material using waste concrete powder (WCP), which is a novel method for effectively utilizing waste concrete.
Yasuyuki Kanda, Tsuguri Kusumoto
wiley +1 more source
Encontros Bibli, 2011 Analisa o uso da microfilmagem e da digitalização para a preservação e acesso de documentos em arquivos. Apresenta como algumas instituições internacionais na área estão lidando com a questão.
Sérgio Conde de Albite Silva
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Journal of Raman Spectroscopy, Volume 57, Issue 8, Page 1463-1480, August 2026.Micrometer analysis of millimeter lines of Raman spectra concludes in the association of anatase and graphitized organic matter (graphogen). The photosynthetic microorganisms at the origin of the microbialites produce O2, which is transformed by TiO2 into reactive species that, in turn, decompose the organic matter of the microorganisms. ABSTRACT Raman
Marie‐Paule Bassez
wiley +1 more source
Structural Response of Laser‐Driven Shock Compressed Albite
Geophysical Research LettersPlagioclase records characteristic shock features that constrain meteorite impact conditions, but its phase evolution along the Hugoniot remains unresolved.
Sota Takagi +15 more
doaj +1 more source
Литосфера, 2018 The object of research. The main goal of the work was to resolve the problem of the existence of rock associations: alkaline granites–syenites–nepheline syenites, which is found on all continents among ancient platforms and stabilized folded regions of ...
Mikhail I. Dubrovsky
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