Os, Re, Ir, Ru, Rh, Pd, AU in borehole samples from the Clearwater East Crater (Canada) and the Boltysh Impact Crater (Ukraine)

Details Os, Re, Ir, Ru, Rh, Pd, AU in borehole samples from the Clearwater East Crater (Canada) and the Boltysh Impact Crater (Ukraine) Os, Re, Ir, Ru, Rh, Pd, AU in borehole samples from the Clearwater East Crater (Canada) and the Boltysh Impact Crater (Ukraine)

Mar 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997lpi....28.1255s&link_type=abstract

Conference Paper, 28th Annual Lunar and Planetary Science Conference, p. 255.

Computer Science

1

Hypervelocity Impact, Meteorite Craters, Meteoritic Composition, Chondrites, Chromium, Rare Earth Elements, Canada, Boreholes, Osmium, Rhenium, Iridium, Rubidium, Rhodium, Palladium, Gold

Scientific paper

The identification of projectiles of terrestrial impact craters may be deduced from melt rock siderophile and highly siderophile element abundances and interelement ratios. High concentrations of strongly siderophile trace elements have been detected in the East Clearwater melt rocks. Chondrite-normalized ratios and the apparent presence of meteoritic Cr suggested the presence of around 7 percent of a chondritic component (nickel concentrations 5 to 10 percent CI-chondritic abundances) in the impact melt. From Boltysh, so far only eight samples have been analyzed; three contain less than 1 ng/g Ir and five contain about 0.1 ng/g Ir. Grieve et al. (1987) concluded that the impactor could have been a stony projectile if the Ni (43 micro-g/g), Cr (56 micro-g/g), and Ir enrichments are meteoritic in origin. The purpose of this study was to better characterize the meteoritic signatures of these two craters by additional analyses of highly siderophile elements (especially the less often analyzed elements Os, Rh and Ru) which can be used to distinguish between magmatic iron meteorites and nonmagmatic iron meteorites and chondrites.

Affiliated with

Also associated with

No associations

Rating

Os, Re, Ir, Ru, Rh, Pd, AU in borehole samples from the Clearwater East Crater (Canada) and the Boltysh Impact Crater (Ukraine) 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 Os, Re, Ir, Ru, Rh, Pd, AU in borehole samples from the Clearwater East Crater (Canada) and the Boltysh Impact Crater (Ukraine), we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Os, Re, Ir, Ru, Rh, Pd, AU in borehole samples from the Clearwater East Crater (Canada) and the Boltysh Impact Crater (Ukraine) will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-874015