Results 31 to 40 of about 67,364 (304)

The Buritizal meteorite: classification of a new Brazilian chondrite

open access: yesREM: International Engineering Journal
On August 14, 1967, the reporter Saulo Gomes, working at TV Tupi, went to a small city in the State of São Paulo called Buritizal to investigate reports of a meteorite fall and write a newspaper report.
Rogerio Nogueira Salaverry   +5 more
doaj   +1 more source

New carbonaceous chondrite Northwest Africa 11781 (CM2)

open access: yesЛитосфера, 2019
Research subject. The article presents the results of a study of a new meteorite Northwest Africa 11781.Material and methods. The material for the study was a fragment of a meteorite weighing 15.56 g, from which 4 transparent polished sections with a ...
K. A. Dugushkina, S. V. Berzin
doaj   +1 more source

EVALUATION OF THERMAL METAMORPHISM TEMPERATURE OF EQUILIBRATED ORDINARY CHONDRITES

open access: yesГеодинамика и тектонофизика, 2022
The article provides an evaluation of thermal metamorphism temperatures on chondrite parent bodies using an olivine-Сr spinel geothermometer. To calculate temperatures, the results of EPMA analysis of the major and trace elements in olivine and Cr spinel
К. G. Sukhanova   +3 more
doaj   +1 more source

METEORITES

open access: yesSchool Science and Mathematics, 1906
A second edition of this leaflet was issued in 1941 with minor additions. ; Pages also numbered 33-43 at foot of pages. ; Cover title. ; Mode of access: Internet. ; Fieldiana, Popular series, Geology, was published by Field Museum of Natural History, Dept. of Geology as Leaflet (no. 1-4, 1922-1923) and as Geology leaflet (no. 5-14, 1925-1933).
openaire   +1 more source

Influence of the Yucatan earthquake event

open access: yesFrontiers in Earth Science, 2023
In recent years, seismic wave effects caused by meteorite impacts have been widely observed. The meteorite impact event that occurred 66 million years ago is one of the most famous impact events in Earth’s history.
Changcheng Li
doaj   +1 more source

Direct Formation of Hard‐Magnetic Tetrataenite in Bulk Alloy Castings

open access: yesAdvanced Science, 2023
Currently, predominant high‐performance permanent magnets contain rare‐earth elements. In the search for rare‐earth‐free alternates, body‐centered tetragonal Fe–Ni is notable.
Yurii P. Ivanov   +4 more
doaj   +1 more source

Silica-rich volcanism in the early solar system dated at 4.565 Ga

open access: yesNature Communications, 2018
Achondritic meteorites can record volcanism and crust formation on planetesimals in the early Solar System. Here, the authors date the Northwest Africa 11119 meteorite with an Al-Mg age of 4564.8 ± 0.3 Ma indicating that this is the earliest evidence of ...
Poorna Srinivasan   +7 more
doaj   +1 more source

Visible to Near‐Infrared Reflectance Spectroscopy of Asteroid (16) Psyche: Implications for the Psyche Mission's Science Investigations

open access: yesEarth and Space Science, 2023
The NASA Psyche mission will explore the structure, composition, and other properties of asteroid (16) Psyche to test hypotheses about its formation.
S. D. Dibb   +3 more
doaj   +1 more source

Determining the mechanical parameters of asteroid rocks using NWA13618 meteorites and microscale rock mechanics experiment

open access: yesRock and Soil Mechanics, 2022
In the future, the extraterrestrial human activities, such as resources exploitation and base construction beyond the Earth need the aid of geotechnical engineering technology.
TANG Xu-hai   +6 more
doaj   +1 more source

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