Results 21 to 30 of about 67,364 (304)

Parauapebas meteorite from Pará, Brazil, a “hammer” breccia chondrite

open access: yesBrazilian Journal of Geology, 2020
The Parauapebas meteorite, third official meteorite discovered in the Brazilian Amazon region, is a “hammer meteorite” which fell on December 9th, 2013, in the city of Parauapebas, Pará State, Brazil.
Daniel Atencio   +5 more
doaj   +1 more source

A new family of extraterrestrial amino acids in the Murchison meteorite

open access: yesScientific Reports, 2017
The occurrence of extraterrestrial organic compounds is a key for understanding prebiotic organic synthesis in the universe. In particular, amino acids have been studied in carbonaceous meteorites for almost 50 years.
T. Koga, H. Naraoka
semanticscholar   +1 more source

Meteorites [PDF]

open access: yesScientific American, 1876
n ...
openaire   +2 more sources

A brief history of the Department of Cosmoecology and Cosmic Mineralogy (to 50-anniversary of M. P. Semenenko Institute of Geochemistry, Mineralogy and Ore Formation NAS of Ukraine)

open access: yesГеофизический журнал, 2019
The history of origin and evolution in Ukraine of mineralogical studies of cosmic samples, mainly meteorites, and the main stages of formation of the Department of Сosmoecology and Cosmic Mineralogy at the M. P.
V. P. Semenenko
doaj   +1 more source

Desiccation of the Extreme Thermoacidophile Metallosphaera sedula Grown on Terrestrial and Extraterrestrial Materials

open access: yesFrontiers in Astronomy and Space Sciences, 2020
Prokaryotes are among the most versatile organisms on Earth and their ability to adsorb metals for nutrient, energy, or protection purposes can be noted in many different environments on our planet.
Denise Kölbl   +4 more
doaj   +1 more source

The Okhansk Meteorite: Specifics of Composition, Structure, and Genesis [PDF]

open access: yesУчёные записки Казанского университета: Серия Естественные науки, 2016
The Okhansk meteorite fell on August 18, 1887 near the village of Tabor, about 15 km away from the town of Okhansk in Perm province and weighed 186.5 kg (the total weight of collected fragments, according to P.I. Krotov, was more than 245 kg).
A.I. Bakhtin   +3 more
doaj  

Two billion years of magmatism recorded from a single Mars meteorite ejection site

open access: yesScience Advances, 2017
Martian meteorites from a single Mars ejection site record 2 billion years of magmatic activity. The timing and nature of igneous activity recorded at a single Mars ejection site can be determined from the isotope analyses of Martian meteorites ...
T. Lapen   +8 more
semanticscholar   +1 more source

Meteorite Struga – overview of previous chemical and recent spectroscopic analyses

open access: yesMacedonian Journal of Chemistry and Chemical Engineering, 2009
Meteorite Struga fell more than 35 years ago near the town of Struga, Republic of Macedonia. Its fall was notified in the Bulletien of the Geological Institute in Skopje in 1973. Since that time, only one chemical analysis has been reported (in 1990) and
Biljana Minčeva-Šukarova
doaj   +1 more source

Discovery of natural MgSiO3 tetragonal garnet in a shocked chondritic meteorite

open access: yesScience Advances, 2016
A high-pressure phase is discovered in a shocked, stony meteorite. MgSiO3 tetragonal garnet, which is the last of the missing phases of experimentally predicted high-pressure polymorphs of pyroxene, has been discovered in a shocked meteorite.
N. Tomioka, M. Miyahara, Motoo Ito
semanticscholar   +1 more source

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