A Cirque-Glacier Chronology Based on Emergent Lichens and Mosses

Abstract Recession of “Golden Eagle” glacier in the central Brooks Range is exposing undisturbed lichen-covered boulders. Radiocarbon analysis of dead moss surrounding these boulders dates a Neoglacial advance across this site at 1120±180 years b.p Measurements of the preserved lichens indicate that...

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Bibliographic Details
Published in:Journal of Glaciology
Main Authors: Calkin, Parker E., Ellis, James M.
Format: Article in Journal/Newspaper
Language:English
Published: Cambridge University Press (CUP) 1981
Subjects:
Earth-Surface Processes
Brooks Range
Journal of Glaciology
golden eagle
Online Access:http://dx.doi.org/10.1017/s0022143000011576
https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022143000011576
Description
Summary:Abstract Recession of “Golden Eagle” glacier in the central Brooks Range is exposing undisturbed lichen-covered boulders. Radiocarbon analysis of dead moss surrounding these boulders dates a Neoglacial advance across this site at 1120±180 years b.p Measurements of the preserved lichens indicate that a minimum ice-free period of 1500–2500 years preceded this glacial expansion.

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