leg site hole core section top of core depth (m) center of first density depth (m) density point increment (cm) source code standard code gamma identifier: low density standard gamma identifier: high density standard density values next 135, 150 or 160 columns 70 508 C 1 1 42.00 42.01 1.023 EARLY CHALLENGER DATA ALUMINUM (2.54 cm) ALUMINUM (6.61 cm) 3529 3078 1.06 1.59 1.67 1.46 1.38 1.45 1.57 1.62 1.57 1.51 1.54 1.57 1.57 1.53 1.53 1.59 1.55 1.61 1.54 1.57 1.61 1.58 1.61 1.65 1.56 1.55 1.60 1.60 1.60 1.64 1.66 1.59 1.66 1.70 1.69 1.65 1.66 1.58 1.64 1.66 1.66 1.66 1.59 1.70 1.66 1.66 1.68 1.73 1.70 1.69 1.69 1.70 1.68 1.70 1.71 1.73 1.72 1.73 1.74 1.68 1.77 1.74 1.73 1.68 1.73 1.70 1.79 1.74 1.77 1.71 1.73 1.67 1.71 1.71 1.74 1.69 1.77 1.67 1.76 1.74 1.75 1.71 1.73 1.76 1.76 1.74 2.03 1.77 1.76 1.76 1.75 1.76 1.72 1.77 1.70 1.76 1.70 1.72 1.78 1.75 1.75 1.71 1.71 1.76 1.76 1.67 1.72 1.74 1.70 1.71 1.75 1.72 1.75 1.69 1.78 1.76 1.71 1.67 1.70 1.70 1.69 1.76 1.73 1.75 1.66 1.64 1.67 1.68 1.70 1.75 1.77 1.73 1.72 1.73 1.69 1.71 1.77 1.75 1.72 1.70 1.69 1.71 1.66 1.72 1.67 1.53 0.00 0.00 0.00 0.00