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Record #104707:
On determining ice accumulation rates in the past 40,000 years using in situ cosmogenic ¹⁴C / D. Lal, A.J.T. Jull.
Title: | On determining ice accumulation rates in the past 40,000 years using in situ cosmogenic ¹⁴C / D. Lal, A.J.T. Jull. |
Author(s): | Lal, D. Jull, A. J. T. |
Date: | 1990. |
In: | Geophysical Research Letters. (1990.), Vol. 17(9) (1990) |
Abstract: | Points out that ¹⁴C chronology should be corrected for ¹⁴C produced in situ within ice crystals at firn stage. Correction can be made quite accurately since larger part of in situ ¹⁴C becomes partially oxidized to ¹⁴CO, identifying itself as in situ ¹⁴C. In situ ¹⁴C, when studied in conjunction with atmospheric ¹⁴C, can be used to determine ice accumulation rates back 40 ka. Technique should prove valuable in developing hydrodynamical models of ice flow. |
Notes: | Geophysical Research Letters. Vol. 17(9) :1303-1306 (1990). |
Keywords: | 551.32 -- Glaciology. 551.324 -- Land ice. 551.324.431 -- Land ice, accumulation. 551.321 -- Glaciological methods and instruments. E3 -- Glaciology: instruments and methods. |
SPRI record no.: | 104707 |
LDR 01338naa#a2200000#a#4500 001 SPRI-104707 005 20231209220822.0 007 ta 008 231209s1990####xx#a##|##|###|0||#0|eng#d 035 ## ‡aSPRI-104707 040 ## ‡aUkCU-P‡beng‡eaacr 100 1# ‡aLal, D. 245 10 ‡aOn determining ice accumulation rates in the past 40,000 years using in situ cosmogenic ¹⁴C /‡cD. Lal, A.J.T. Jull. 260 ## ‡a[S.l.] :‡b[s.n.],‡c1990. 300 ## ‡ap. 1303-1306 :‡bdiag., table. 500 ## ‡aGeophysical Research Letters. Vol. 17(9) :1303-1306 (1990). 520 3# ‡aPoints out that ¹⁴C chronology should be corrected for ¹⁴C produced in situ within ice crystals at firn stage. Correction can be made quite accurately since larger part of in situ ¹⁴C becomes partially oxidized to ¹⁴CO, identifying itself as in situ ¹⁴C. In situ ¹⁴C, when studied in conjunction with atmospheric ¹⁴C, can be used to determine ice accumulation rates back 40 ka. Technique should prove valuable in developing hydrodynamical models of ice flow. 650 07 ‡a551.32 -- Glaciology.‡2udc 650 07 ‡a551.324 -- Land ice.‡2udc 650 07 ‡a551.324.431 -- Land ice, accumulation.‡2udc 650 07 ‡a551.321 -- Glaciological methods and instruments.‡2udc 650 07 ‡aE3 -- Glaciology: instruments and methods.‡2local 700 1# ‡aJull, A. J. T. 773 0# ‡7nnas ‡tGeophysical Research Letters. ‡gVol. 17(9) (1990) ‡wSPRI-1033 917 ## ‡aUnenhanced record from Muscat, imported 2019 948 3# ‡a20231209