Mathematics – Logic
Scientific paper
Apr 2003
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003eaeja.....3569l&link_type=abstract
EGS - AGU - EUG Joint Assembly, Abstracts from the meeting held in Nice, France, 6 - 11 April 2003, abstract #3569
Mathematics
Logic
Scientific paper
We carried out comparative analysis of general morphological characteristics of mineral content composition and chemical features of fragments of ferrous meteorites from Sihote-Alin (Russia) and Gibeon (Namibia).. According to microprobe analysis results the main substance mass of both types of meteorites is composed of nickelish iron (kamacite) with a medium iron content till 93-94% and nickel till 5%. In the meteorite of Sihote-Alin kamacite forms monocrystals with cleavage along the cube faces. Kamacite-like mass is pierced by shreibersite crystals having micron dimenshion, which oriented in three mutually perpendicular directions. Dimensions, orientation and deformation violation of crystals is evidence of rapid cooling down of the parent melt. Main mass of the meteorite Gibeon is composed by kamacite (Fe-92.77%, Ni-6.5%) as joisting and system of plastins locating parallelly towards four planes- octahedron faces. Very thin stripes of tenite g-(Fe,Ni) mineral with highest nickel content (Fe-70%, Ni-29.36%) settle between kamacite growing together harmony with them. So, in spite of the similarity of the chemical content of the meteorites from Sihote-Alin and Gibeon, mineralogical researches show that there are some considerable differences in their composition, concerning different conditions of formation of parent bodies of meteorites, and first of all , concerning cooling down rates of the melts.
No associations
LandOfFree
Crystallization processes of ferrous meteorites does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Crystallization processes of ferrous meteorites, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Crystallization processes of ferrous meteorites will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-842560