Appendix 2: Exposure ages							
Sample	Lab code	[10Be]       (105 g-1) 1	Production rate    (g-1.yr-1) 2	Apparent age  (103yr) 2	Production rate    (g-1.yr-1) 3	"Corrected age  (103yr) 3,4"	
Blue Lake: Longitudinal ridge							
BLL-014	ANU-090-12	3.73 ± 0.17	18.94 ± 1.32	14.9 ± 1.2	18.58 ± 1.3	15.9 ± 1.4	
Striated surface							
BLS-001	ANU-070-18	3.24 ± 0.18	18.57 ± 1.29	17.5 ± 1.6	18.50 ± 1.29	17.6 ± 1.6	
BL-IV moraine							
BLI-001	ANU-070-15	3.27 ± 0.17	18.06 ± 1.26	18.2 ± 1.6	17.84 ± 1.24	19.5 ± 1.8	
BLI-002	ANU-070-16	2.76 ± 0.16	18.06 ± 1.26	15.3 ± 1.4	17.84 ± 1.24	16.2 ± 1.6	
BLI-003	ANU-070-17	2.67 ± 0.15	18.21 ± 1.27	14.7 ± 1.3	17.99 ± 1.5	15.6 ± 1.5	
BL-III moraine							
BLH-008	ANU-071-03	3.51 ± 0.21	18.18 ± 1.27	19.4 ± 1.8	18.17 ± 1.27	20.6 ± 2.0	
BLH-009	ANU-071-04	3.11 ± 0.18	18.18 ± 1.27	17.2 ± 1.55	18.21 ± 1.27	18.0 ± 1.7	
BLD-013	ANU-104-16	3.24 ± 0.16	18.08 ± 1.26	18.0 ± 1.55	18.08 ± 1.26	19.0 ± 1.7	
BL-II moraine							
BLHO-010	ANU-090-13	5.51 ± 0.23	18.70 ± 1.30	29.7 ± 2.4	19.61 ± 1.37	30.8 ± 2.8	
BLHO-011	ANU-090-14	5.79 ± 0.25	17.98 ± 1.25	32.4 ± 2.7	18.84 ± 1.31	34.2 ± 3.1	
BLHO-012	ANU-090-15	5.43 ± 0.24	18.16 ± 1.27	30.1 ± 2.5	19.03 ± 1.33	31.4 ± 2.9	
BL-I moraine							
BLO-001	ANU-070-11	7.38 ± 0.4	17.2 ± 1.20	43.3 ± 3.9	18.71 ± 1.3	45.3 ± 4.7	
BLO-002	ANU-070-12	9.39 ± 0.4	17.2 ± 1.20	55.3 ± 4.6	19.0 ± 1.32	59.3 ± 5.9	
BLO-003	ANU-070-14	6.75 ± 0.35	17.35 ± 1.21	39.3 ± 3.45	19.16 ± 1.34	39.9 ± 4.0	
BL-I boulder field							
BLB-001	ANU-070-07	8.91 ± 0.44	17.13 ± 1.19	52.7 ± 4.5	18.92 ± 1.32	56.0 ± 5.7	
BLB-002	ANU-070-09	9.51 ± 6.1	16.84 ± 1.17	57.2 ± 5.5	18.60 ± 1.30	61.7 ± 7.1	
BLB-003	ANU-070-10	9.64 ± 4.7	17.13 ± 1.19	57.0 ± 4.9	18.92 ± 1.32	61.5 ± 6.4	
Helm's Moraine							
HLM-015	ANU-090-16	3.68 ± 0.17	20.71 ± 1.44	17.8 ± 1.5	20.67 ± 1.44	18.9 ± 1.7	
HLM-016	ANU-104-17	2.37 ± 0.3	20.54 ± 1.43	11.6 ± 1.7	19.81 ± 1.38	12.5 ± 1.9	
Lake Cootapatamba: LC-II moraine							
LCI-001	ANU-071-05	3.45 ± 0.2	21.31 ± 1.49	16.3 ± 1.5	21.03 ± 1.47	17.3± 1.7	
LCI-002	ANU-071-06	3.12 ± 0.41	21.18 ± 1.48	14.8 ± 2.2	20.91 ± 1.46	15.7 ± 2.5	
LCI-004	ANU-104-04	3.46 ± 0.2	21.00 ± 1.46	16.55 ± 1.5	20.73 ± 1.45	17.7 ± 1.7	
LC-I moraine							
LCO-006	ANU-104-05	3.67 ± 0.22	20.87 ± 1.45	17.65 ± 1.6	20.71 ± 1.44	18.8 ± 1.9	
LCO-007	ANU-104-03	3.34 ± 0.22	20.82 ± 1.45	16.1 ± 1.55	20.67 ± 1.44	17.0 ± 1.7	
				Erosion rate (mm 103yr-1)		Erosion rate (mm 103yr-1)	
Merritts Creek							
MCK-001	ANU-070-04	33.4 ± 1.4	19.63 ± 1.37	3.09 ± 0.27	22.07 ± 1.54	3.51 ± 0.31	
MCK-003	ANU-070-06	36.5 ± 1.6	19.62 ± 1.37	2.81 ± 0.25	22.07 ± 1.54	3.19 ± 0.28	
							
1. Data relative to NIST SRM 4325 (10Be/9Be taken as 3.00 x 10-11). Procedural blanks averaged ~2 x 104 atoms 10Be. 							
Carrier 10Be/9Be = 1 x 10-15. 10Be decay constant 4.62 x 10-7 yr-1.							
2. Assuming no erosion or secular changes in the geomagnetic field. 							
3. Assuming a mean erosion rate of 3.35 mm 103yr-1 and using the effective latitude from Table 1.							
4. BLS-001 from the striated surface has no erosion correction.