Correction

This article refers to:

Middle to late Holocene chronology of the western margin of the Greenland Ice Sheet: A comparison with Holocene temperature and precipitation records

Levy, L. B., Kelly, M. A., Applegate, P. A., Howley, J. A., and Virginia, R. A. 2018. Middle to late Holocene chronology of the western margin of the Greenland Ice Sheet: A comparison with Holocene temperature and precipitation records, Arctic, Antarctic, and Alpine Research, 50 DOI: 10.1080/15230430.2017.1414477

In the original article, Table 1 contained errors. The corrected table appears below.

Table 1. ¹⁰Be ages and sample information of boulders on moraines, boulders perched on glacially polished bedrock and bedrock. We calculated all ¹⁰Be ages using the Arctic production rate (Young et al., 2013b) and the time-invariant scaling scheme of Lal (1991)/Stone (2000). The ¹⁰Be/⁹Be ratio for the three processing blanks ranged from 1.42 to 5.62 x 10⁻¹⁶. The ¹⁰Be ages reported here are slightly older than those reported by Levy (2014) and Winsor et al. (2015). This difference is due to an updated concentration of the 4G Beryl carrier

Sample ID^a,b	Latitude (°N)	Longitude (°W)	Elevation (masl)	Shielding Correction	Thickness (cm)	^10Be Conc. (atoms/g) ^c	Uncertainty (atoms/g) ^d	Age ± Uncertainty (ka)^d
Boulders on Keglen moraines
LL1103	67.045	–50.535	186	0.998	3.6	4.10 × 10^4	1.22 × 10^3	8.0 ± 0.2
LL1104	67.045	–50.536	176	0.995	1.6	4.17 × 10^4	1.27 × 10^3	8.1 ± 0.2
LL1105	67.045	–50.536	186	0.998	2.2	4.18 × 10^4	1.11 × 10^3	8.1 ± 0.2
LL1107	67.048	–50.537	129	0.994	2.1	3.89 × 10^4	1.09 × 10^3	8.0 ± 0.2
LL1108	67.048	–50.537	130	0.996	1.4	3.93 × 10^4	1.02 × 10^3	8.0 ± 0.2
LL1109	67.049	–50.539	122	0.996	2.2	3.80 × 10^4	9.58 × 10^2	7.9 ± 0.2
Boulders on bedrock and bedrock atop Mount Keglen
LL1134	67.043	–50.518	352	0.993	1.4	4.76 × 10^4	9.55 × 10^2	7.8 ± 0.2
LL1135a	67.044	–50.521	343	1	1.6	4.93 × 10^4	1.04 × 10^3	8.1 ± 0.2
LL1136a	67.044	–50.522	329	0.999	2.4	4.90 × 10^4	1.29 × 10^3	8.2 ± 0.2
Boulders on bedrock, Vulgaris Valley
JBC1006	67.090	–50.271	356	1	1.9	4.33 × 10^4	1.24 × 10^3	7.0 ± 0.2
JBC1007	67.090	–50.273	360	1	2.3	4.46 × 10^4	1.20 × 10^3	7.2 ± 0.2
Boulder on bedrock, just distal to the historical limit
LL1133	67.156	–50.060	458	0.993	2.4	4.72 × 10^4	1.27 × 10^3	7.0 ± 0.2
Boulders on bedrock, historical trimline
LL1130	67.157	–50.061	451	0.987	2.0	1.34 × 10^3	9.36 × 10^1	0.2 ± <0.1
LL1131	67.157	–50.061	455	0.991	2.6	3.54 × 10^4	8.36 × 10^2	5.3 ± 0.1
Boulders atop the historical moraines
LL1137	67.163	–50.098	469	1	3.0	4.76 × 10^2	7.70 × 10^1	0.1 ± <0.1
LL1139	67.163	–50.098	470	1	1.9	7.61 × 10^2	7.02 × 10^1	0.1 ± <0.1

Notes. ^aSamples names ending in “a” are bedrock samples, all others are boulder samples.

^bSample outliers are italicized.

^cAll samples were prepared at Dartmouth College using the carrier “4G Beryl” and measured using the beryllium standard 07KNSTD (Nishiizumi et al., 2007). Ages are calculated assuming a rock density of 2.7 g cm⁻³ and an erosion rate of 0.

^dUncertainty reported is the internal Accelerator Mass Spectrometer uncertainty.

The authors apologize for these errors.