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Supplemental material: Antislope scarps, gravitational spreading, and tectonic faulting in the western Yakutat microplate, south coastal Alaska

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journal contribution
posted on 22.09.2011 by J.P. McCalpin, R.L. Bruhn, T.L. Pavlis, F. Gutierrez, J. Guerrero, P. Lucha
Geosphere, October 2011, v. 7, p. 1143-1158, doi:10.1130/GES00594.1, Supplemental Figure 7 - Probability density functions of the equivalent dose (De) for optically stimulated luminescence (OSL) samples from the west trench at the Martin Lake site. (A) Unit 3, loess. This sample contains the closest to a single OSL age population, consistent with its origin as a well-zeroed air-fall loess. (B) Unit 2b, colluvium. This sample contains multiple OSL age populations, including a large higher-dose group (190—210 Gy) that probably represents inherited luminescence from unzeroed sand grains. This is consistent with the variable light exposure expected during colluvial transport.

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