Results 61 to 70 of about 102,836 (336)
A comprehensive study of noble gases and nitrogen in Hypatia, a diamond-rich pebble from SW Egypt [PDF]
, 2015 This is a follow-up study of a work by Kramers et al. (2013) on an unusual diamond-rich rock found in the SW side of the Libyan Desert Glass strewn field. This pebble, called Hypatia, is composed of almost pure carbon.
Andreoli, Marco A. G. +9 more
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Raman Study of the Slobodka Ordinary Chondrite
Journal of Raman Spectroscopy, EarlyView.The texture and mineral chemistry of Slobodka are most consistent with L4 chondrites, exhibiting strong shock metamorphism characteristic of shock stage S4, including irregular and planar fractures, undulatory extinction, and mosaicism in olivine, pyroxene, and plagioclase.
M. Simopoulou +10 more
wiley +1 more source
The Planetary Science Journal, 2023 Remote spectral characterization of near-Earth asteroids (NEAs) relies on laboratory spectral calibration to constrain their surface composition, including mineral chemistry and relative mineral abundances.
Bryn Bowen +10 more
doaj +1 more source
Low‐Frequency Raman Spectra of Natural Pyrrhotites: Polarization Dependence for Its Lattice Modes
Journal of Raman Spectroscopy, EarlyView.The present study found low‐wavenumber Raman modes of pyrrhotite Fe1‐xS at ~68, ~87, ~117, and ~230 cm−1 for the first time, thanks to a lab‐built Raman spectrometer, in which the optical path of the incident laser was purged by Ar gas. The sufficiently high signal‐to‐noise and signal‐to‐base ratios enabled us to obtain the polarization dependence of ...
Shu‐hei Urashima +5 more
wiley +1 more source
HeritageMeteorites have intrigued humanity for centuries, representing our enduring pursuit of knowledge and exploration of the cosmos’ enigmas. These celestial objects have not only influenced artistic expression and the formation of myths but have also ...
Annarita Franza +2 more
doaj +1 more source
Formation of nickel–iron meteorites by chemical fluid transport
ScienceOpen Research, 2016 The deposition of solid material from the gas phase via chemical vapor transport (CVT) is a well-known process of industrial and geochemical relevance. There is strong evidence that this type of thermodynamically driven chemical transport reaction plays ...
Werner Schrön
doaj +1 more source
The Marseilles Meteorite [PDF]
Nature, 1871 IT will probably occur to most of your readers, as it immedidiately suggested itself to me, on reading in your journal of the 5th inst. a description from Les Mondes of a remarkable meteorite observed at Marseilles by M. Coggia, on the 1st of August last, that the bright object having an apparent diameter, at first of about 15′, and at last of a little
openaire +3 more sources
Mass Spectrometry Reviews, EarlyView.ABSTRACT Complex organic mixtures are found in many areas of research, such as energy, environment, health, planetology, and cultural heritage, to name but a few. However, due to their complex chemical composition, which holds an extensive potential of information at the molecular level, their molecular characterization is challenging.
Charlotte Mase +5 more
wiley +1 more source
The Temperature of Meteorites [PDF]
Nature, 1904 DURING the early part of the year 1901, when I was on the staff of the Elswick Works, it occurred to me that it would be useful and interesting if a connection could be made between the conditions of the flight of artillery shells and of meteorites. Later in the same year I made a preliminary mathematical investigation into the matter, and as a result ...
openaire +2 more sources
The pre-atmospheric size of Martian meteorites [PDF]
, 2002 The pre-atmospheric size of martian meteorites was calculated based on 80Kr produced by epithermal secondary cosmic-ray produced neutrons of 30-300 eV energy.
Busemann, H. +2 more
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