Results 81 to 90 of about 2,410,397 (202)

The Sun\u27s Origin and Composition: Implications from Meteorite Studies

open access: yes, 2002
Meteorite studies were performed to know about the Sun\u27s origin and composition. In the 1970s meteorite studies indicated the Sun to be a supernova remnant.
Manuel, Oliver, Katragada, A.
core  

Micromagnetic and microstructural analyses in chondrules of the Allende meteorite

open access: yesRevista Mexicana de Ciencias Geológicas, 2018
Results of micromagnetic and microstructural studies of individual chondrules from the Allende carbonaceous meteorite are presented. Allende is a member of the CV3 carbonaceous chondrites, and part of the oxidized meteorites with iron in silicates and ...
Daniel Flores-Gutiérrez   +3 more
doaj  

The Lake El’gygytgyn Scientific Drilling Project – Conquering Arctic Challenges through Continental Drilling

open access: yesScientific Drilling, 2011
Between October 2008 and May 2009, the International Continental Scientific Drilling Program (ICDP)co-sponsored a campaign at Lake El´gygytgyn, located in a 3.6-Ma-old meteorite impact crater in northeastern Siberia. Drilling targets included three holes
Georg Schwamborn   +13 more
doaj   +1 more source

Investigations of NWA 4560 meteorite by analytical electron microscopy [PDF]

open access: yes, 2013
Ordinary chondrite NWA 4560 was investigated by analytical electron microscopy. Elemental composition and mineral composition have been analyzed. Kamacite, troilite, olivine, orthopyroxene, clinopyroxene, and oligoclase have been identified, and mean ...
Szurgot, Marian, Polański, Krzysztof
core  

PGAA, PGAI and NT with cold neutrons: Test measurement on a meteorite sample

open access: yes, 2009
First comprehensive analysis with PGAA, Prompt Gamma-ray Activation Imaging (PGAI) and neutron tomography (NT) techniques at the research reactor FRM II was tested on a piece of the Allende meteorite.
Jolie, Jan   +9 more
core   +1 more source

MATERIAL OF COMETARY NUCLEI AND ASTEROIDS CAN BE STUDIED IN THE EARTH’S ORBIT

open access: yesOdessa Astronomical Publications, 2019
The Solar system is formed from a pri- mary gas-dust cloud. Asteroids and cometary nuclei are made of the same substance. Therefore, the study of their debris will help determine their properties.
A. P. Vidmachenko, A. F. Steklov
doaj   +1 more source

Meteorite Landings

open access: yes
Meteorite Landings DatasetThe Meteoritical Society collects data on meteorites landings. This dataset, taken from public available NASA datasets, includes the location, mass, composition, and fall year for over 45,000 meteorites that have struck our ...
Alois Romanowski (16670958)   +2 more
core   +1 more source

Meteorite fusion crust variability

open access: yes, 2009
Two assumptions commonly employed in meteorite interpretation are that fusion crust compositions represent the bulk-rock chemistry of the interior meteorite and that the vesicles within the fusion crust result from the release of implanted solar wind ...
Thaisen, K. G.   +3 more
core   +1 more source

Polycyclic aromatics in the Chang’E 5 lunar soils

open access: yesNature Communications
Polycyclic aromatics are ubiquitous in the interstellar medium and meteorites, yet the search for lunar polycyclic aromatics remains a significant challenge. Here, we analyze Chang’E-5 lunar soil samples, revealing polycyclic aromatic concentrations of 5.
Guangcai Zhong   +18 more
doaj   +1 more source

STRUCTURE AND COMPOSITION OF IRON SULFIDES IN METEORITE DRONINO [PDF]

open access: yes, 2019
The Sulphide minerals such as troilite, pyrite and pentlandite were found in the sample of Dronino meteorite. Their structural parameters and chemical composition were studied by X-ray diffraction, Raman spectroscopy, scanning electron microscopy.Авторы ...
Гонцова, С. С.   +2 more
core  

Home - About - Disclaimer - Privacy