Other
Scientific paper
Nov 1997
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997m%26ps...32..775w&link_type=abstract
Meteoritics & Planetary Science, vol. 32, no. 6, pages 775-780
Other
17
Scientific paper
We measured the concentrations of cosmogenic radionuclides 10Be (half-life = 1.51 x 106 a), 26Al (7.05 x 105 a) and 36Cl (3.01 x 105 a) in Lewis Cliff 86360, an L-chondrite from the Lewis Cliff stranding area, East Antarctica. In addition, the concentrations and isotopic compositions of helium, neon and argon were measured. The combined results yield a terrestrial age of 2.35 +/- 0.15 million years (Ma). Only one other stony meteorite with a similar terrestrial age (~2 Ma) is known from the Allan Hills stranding area (ALH 88019), whereas all previously dated stony meteorites from Antarctica are younger than 1 Ma. We argue that LEW 86360 spent most of its terrestrial residence time deep inside the ice, near the base of the glacier, where ice flow rates are much lower than at the surface. The terrestrial ages of LEW 86360 and ALH 88019 are consistent with existing hypotheses concerning the stability and persistence of the East Antarctic Ice Sheet. The fate of pyroclasts produced in explosive eruptions on the asteroid 4 Vesta.
Alderliesten C.
Lindner Louis
Loeken Th.
Schultz Ludolf
van der Borg Klaas
No associations
LandOfFree
Lewis Cliff 86360, an Antarctic L-chondrite with a terrestrial age of 2.35 million years 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 Lewis Cliff 86360, an Antarctic L-chondrite with a terrestrial age of 2.35 million years, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Lewis Cliff 86360, an Antarctic L-chondrite with a terrestrial age of 2.35 million years will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-924236