نتایج جستجو برای: meteorite

تعداد نتایج: 2201  

Journal: :Science Advances 2021

Meteorite measurements suggest that magnetism played a central role in mass transport the early solar system.

Journal: :Science 2000
P G Brown A R Hildebrand M E Zolensky M Grady R N Clayton T K Mayeda E Tagliaferri R Spalding N D MacRae E L Hoffman D W Mittlefehldt J F Wacker J A Bird M D Campbell R Carpenter H Gingerich M Glatiotis E Greiner M J Mazur P J McCausland H Plotkin T Rubak Mazur

The preatmospheric mass of the Tagish Lake meteoroid was about 200,000 kilograms. Its calculated orbit indicates affinity to the Apollo asteroids with a semimajor axis in the middle of the asteroid belt, consistent with a linkage to low-albedo C, D, and P type asteroids. The mineralogy, oxygen isotope, and bulk chemical composition of recovered samples of the Tagish Lake meteorite are intermedi...

Journal: :Science 2003
Asish R Basu Michail I Petaev Robert J Poreda Stein B Jacobsen Luann Becker

Multiple chondritic meteorite fragments have been found in two sedimentary rock samples from an end-Permian bed at Graphite Peak in Antarctica. The Ni/Fe, Co/Ni, and P/Fe ratios in metal grains; the Fe/Mg and Mn/Fe ratios in olivine and pyroxene; and the chemistry of Fe-, Ni-, P-, and S-bearing oxide in the meteorite fragments are typical of CM-type chondritic meteorites. In one sample, the met...

2007
Alan E. Rubin

CM chondrites are aqueously altered rocks that contain ~9 wt.% H2O (indigenous water) [1] bound in phyllosilicates [2-4]; also present in the matrix are serpentinetochilinite intergrowths (PCP), pentlandite, and Ni-bearing pyrrhotite. The extent of alteration varies from meteorite to meteorite. Some CM chondrites contain well-delineated metallic-Fe-Ni-bearing, olivineand pyroxene-rich chondrule...

2011
Bevan French Glenn MacPherson Roy Clarke Kevin Righter

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید