Results 111 to 120 of about 182,184 (260)
Meteoritics &Planetary Science, EarlyView.Abstract This study investigates the petrography and mineralogy of three L‐type ordinary chondrite meteorites: Northwest Africa (NWA) 4137 (L6), Homestead (L5), and Kunashak (L6). We studied the shock‐related deformation features in the matrix and the characteristics of the melt veins, including the presence or absence of high‐pressure (HP) phases. Our
S. Effraimidou +7 more
wiley +1 more source
Antropologìčnì Vimìri Fìlosofsʹkih Doslìdžen', 2012 The article analyzes the paradigmatic shift in contemporary basic science. Analyzed the worldview of the last discoveries in fundamenta lphysics and astrophysics.Статья посвящена анализу парадигмальных сдвигов в современной фундаментальной науке ...
T. V. Gorbatiuk
doaj
Meteoritics &Planetary Science, EarlyView.Abstract We report on the petrography and oxygen isotopic compositions from in situ analyses of carbonates (Ca‐carbonate, dolomite, and Fe‐rich magnesite), magnetite, and apatite in particles from asteroid Bennu. Using oxygen isotope thermometry of Ca‐carbonate, dolomite, and magnetite, we estimated crystallization temperatures and the oxygen isotopic ...
Gary R. Huss +12 more
wiley +1 more source
Meteoritics &Planetary Science, EarlyView.Abstract Boron and lithium have been observed in Ca‐sulfate veins of Gale crater. These elements are highly water mobile and can inform us regarding the aqueous processes that may have taken place in Gale crater. However, the analysis of B in Gale crater is limited to low‐Fe rocks and minerals due to spectral interference of Fe with B in ChemCam data ...
D. Das +11 more
wiley +1 more source
A Microkrystite from the Australasian Tektite/Microtektite Strewn Field
Meteoritics &Planetary Science, EarlyView.Abstract Microkrystites are glassy impact spherules. They contain primary crystallites carrying information on the physical and chemical conditions prevailing during vaporization, melting, and ejection in large impact cratering events. We report on the geochemistry and mineralogy down to nanometer scale of the first microkrystite (ODP1144A,14) from the
Matteo Del Rio +4 more
wiley +1 more source
Thermal history, collisional history, and structure of the CK‐chondrite parent body
Meteoritics &Planetary Science, EarlyView.Abstract Major chondrite groups (H, L, LL, R, EH, EL, CK) with some members of petrologic type 5 and 6 also have some members of types 3 and 4; they do not have members of type 1 or 2. Their parent bodies had onion‐shell structures and were internally heated by the decay of 26Al.
Alan E. Rubin
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Revista de Lenguas para Fines Específicos, 2015 This article reports the findings of a diachronic study of acknowledgement practices in 300 randomly collected research papers published during three different periods (1998, 2004 and 2012) in the most prestigious American and European astrophysics ...
David I. Méndez, M. Ángeles Alcaraz
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The Grammatical Structure of Scientific Revolutions
Theoria, EarlyView.ABSTRACT In this article, I examine the structural parallels between Thomas Kuhn's philosophy of science and Ludwig Wittgenstein's later thought, focusing on the idea of grammatical frameworks. My central claim is that Kuhn's concept of paradigm and its later, more language‐centred forms in his philosophy can be read as a Wittgensteinian grammatical ...
Umut Morkoç
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An introduction to observational astrophysics
, 2016 Observational Astrophysics follows the general outline of an astrophysics undergraduate curriculum targeting practical observing information to what will be covered at the university level. This includes the basics of optics and coordinate systems to the
Gallaway, Mark
core +1 more source
Entering the Era of Directly Supporting Society With Observation‐Based Ocean Acidification Data
Perspectives of Earth and Space Scientists, Volume 7, Issue 1, December 2026.Abstract Ocean acidification is a growing concern for many nations around the world. However, our capacity to monitor changes in carbonate chemistry with sufficient spatial and temporal resolution, has until now, been limited, which has impeded effective action and decision‐making at international, national, and regional levels.
Helen S. Findlay +11 more
wiley +1 more source