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Record #77497:
Uranium-series dating of Allan Hills ice / E.L. Fireman.
Title: | Uranium-series dating of Allan Hills ice / E.L. Fireman. |
Author(s): | Fireman, E. L. |
Date: | 1985. |
In: | Antarctic Journal of the United States. (1985.), Vol. 20(5) (1985) |
Abstract: | Uranium-238 decay-series nuclides dissolved in Antarctic ice samples were measured. Ice from Cul de Sac site, Allan Hills, has high concentration of fine volcanic glass shards and high Ra²²⁶, Th²³⁰ and U²³⁴ activities in proportion to shard content, but low U²³⁸ activities compared to samples without volcanic shards. U²³⁸ decay-series results are consistent with recoil of alpha decay products. Using this type of dating, age of Cul de Sac ice was determined: 220 ka with error ranging from +30 to -20 ka. |
Notes: | Antarctic Journal of the United States. Vol. 20(5) :70-71 (1985). |
Keywords: | 551.324.84 -- Land ice, impurities. 550.93 -- Geochronology. 91(08) -- Expeditions: 1955- US Antarctic Program. E5 -- Glaciology: land ice. (*7) -- Antarctic regions. (*749.5) -- Transantarctic Mountains, Victoria Land. |
SPRI record no.: | 77497 |
LDR 01383naa#a2200000#a#4500 001 SPRI-77497 005 20240329014135.0 007 ta 008 240329s1985####xx#a##|##|###|0||#0|eng#d 035 ## ‡aSPRI-77497 040 ## ‡aUkCU-P‡beng‡eaacr 100 1# ‡aFireman, E. L. 245 10 ‡aUranium-series dating of Allan Hills ice /‡cE.L. Fireman. 260 ## ‡a[S.l.] :‡b[s.n.],‡c1985. 300 ## ‡ap. 70-71 :‡bdiag., tables. 500 ## ‡aAntarctic Journal of the United States. Vol. 20(5) :70-71 (1985). 520 3# ‡aUranium-238 decay-series nuclides dissolved in Antarctic ice samples were measured. Ice from Cul de Sac site, Allan Hills, has high concentration of fine volcanic glass shards and high Ra²²⁶, Th²³⁰ and U²³⁴ activities in proportion to shard content, but low U²³⁸ activities compared to samples without volcanic shards. U²³⁸ decay-series results are consistent with recoil of alpha decay products. Using this type of dating, age of Cul de Sac ice was determined: 220 ka with error ranging from +30 to -20 ka. 650 07 ‡a551.324.84 -- Land ice, impurities.‡2udc 650 07 ‡a550.93 -- Geochronology.‡2udc 650 07 ‡a91(08) -- Expeditions: 1955- US Antarctic Program.‡2udc 650 07 ‡aE5 -- Glaciology: land ice.‡2local 651 #7 ‡a(*7) -- Antarctic regions.‡2udc 651 #7 ‡a(*749.5) -- Transantarctic Mountains, Victoria Land.‡2udc 773 0# ‡7nnas ‡tAntarctic Journal of the United States. ‡gVol. 20(5) (1985) ‡wSPRI-41791 917 ## ‡aUnenhanced record from Muscat, imported 2019 948 3# ‡a20240329