Results 181 to 190 of about 25,300,669 (221)

Assessing the analytical capabilities of handheld laser‐induced breakdown spectroscopy (hLIBS) on corroded iron objects of possible meteoritic origin

open access: yesMeteoritics &Planetary Science, EarlyView.
Abstract Despite meteorites having been recognized as the source of iron in some ancient iron artifacts, few archeological irons have been analyzed so far, as invasive methods are precluded. In this work, four iron knives and one axe collected near Guelmime and Imilchil (Morocco) were investigated by advanced analytical techniques, including handheld ...
Giorgio S. Senesi   +6 more
wiley   +1 more source

Wide-field, real-time limited-angle optical diffraction tomography using massively parallel data processing. [PDF]

open access: yesBiomed Opt Express
Sylwestrzak M   +7 more
europepmc   +1 more source

Thermal history, collisional history, and structure of the CK‐chondrite parent body

open access: yesMeteoritics &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
wiley   +1 more source

The craters that never were: Anthropogenic origins of alleged impact structures in the Chiemgau region

open access: yesMeteoritics &Planetary Science, EarlyView.
Abstract Public fascination with impact craters often drives bold speculations, but rigorous verification is critical. In southeastern Bavaria, numerous depressions have been proposed to represent impact craters associated with a catastrophic event in Celtic times (between 900 BC and 600 BC)—the so called “Chiemgau Impact.” To date, the evidence ...
Robert Huber   +2 more
wiley   +1 more source

Distribution and rare earth element abundances of apatite in Bennu samples determined by synchrotron X‐ray fluorescence spectroscopy

open access: yesMeteoritics &Planetary Science, EarlyView.
Abstract Apatite is often the most rare earth element (REE)‐enriched mineral in chondritic meteorites. REE enrichment and fractionation levels in apatite grains can give insight into the aqueous fluids in which they formed and the conditions prevailing within the host body. In this study, we applied synchrotron X‐ray fluorescence (SXRF) spectroscopy to
B. J. Tkalcec   +17 more
wiley   +1 more source

Creativity and Embodied Knowledge in Nicholas of Cusa's De mente (1450)

open access: yesModern Theology, EarlyView.
Abstract This article aims to nuance the widespread view that embodied experience plays a secondary role in the acquisition of human knowledge in Nicholas of Cusa's thought. With a focus on De mente (1450), I contend that the body is not limited to being a necessary stimulus to provoke the mind's activity, but rather that finite, material experience ...
Massiel Román Molero
wiley   +1 more source

A dataset of major and trace element composition in sediments of the Loire river basin (France), records covering 1778-2022. [PDF]

open access: yesData Brief
Manière L   +7 more
europepmc   +1 more source

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