Surficial geology and geophysical investigations of the Capers Inlet, South Carolina (USA) 7.5-Minute Quadrangle

Figures & data

Figure 1. Location map of the Capers Inlet Quadrangle, South Carolina study area.

Figure 2. Bedform features located near the −10 m bathymetric contour (in yellow). Bathymetry derived from 1958 NOAA hydrographic data.

Table 1. Quartz OSL and feldspar IRSL ages from the Caper's Inlet Quagrangle.

Sample information	% Water content ^a	K (%)^a	U (ppm)^b	Th (ppm)^b	Cosmic dose^c additions (Gy/ka)	Total dose	Equivalent dose	n^d	Age (years)^e
DI-1	28 (30)	0.68 ± 0.02	0.77 ± 0.06	1.65 ± 0.08	0.15 ± 0.01	0.89 ± 0.03	0.67 ± 0.01	40 (40)	750 ± 25
CI-1	25 (32)	0.89 ± 0.04	1.04 ± 0.10	2.73 ± 0.16	0.16 ± 0.01	1.14 ± 0.04	0.90 ± 0.02	29 (30)	790 ± 30
CI-16	24 (35)	0.77 ± 0.04	1.26 ± 0.10	1.88 ± 0.13	0.14 ± 0.004	1.09 ± 0.04	1.85 ± 0.03	28 (28)	1,830 ± 55
UP-1	26 (39)	0.80 ± 0.02	0.68 ± 0.05	1.38 ± 0.08	0.17 ± 0.01	0.90 ± 0.02	105 ± 2.1	32 (40)	116,710 ± 3,380
^aField moisture, with figures in parentheses indicating the complete sample saturation %. Ages calculated at complete saturation, since samples remained buried under water.
^bAnalyses obtained using laboratory Gamma Spectrometry (high-resolution Ge detector).
^cCosmic doses and attenuation with depth were calculated using the methods of Prescott and Hutton (1994). See text for details.
^dNumber of replicated equivalent dose (De) estimates used to calculate the mean. Figures in parentheses indicate total number of measurements made including failed runs with unusable data.
^eDose rate and age for fine-grained 250–180 μm quartz sand. Linear + exponential fit used on age, errors to one sigma.