leg site hole core section top of sampled interval (cm) bottom of sampled interval(cm) depth to core (m) depth to sample (m) card type card number pH electrode type pH alkalinity measurement type alkalinity salinity data field #1 data field #2 data field #3 data field #4 data field #5 data field #6 reference 75 530 2 6 140.0 150.0 115.50 124.45 DATA CARD 1 1.41 895.00 75228 75 530 2 6 140.0 150.0 115.50 124.45 DATA CARD 1 COMBINATION 7.54 COLORIMETRIC 16.3 33.0 5.50 39.66 23.49 LABNB 75 530 2 6 140.0 150.0 115.50 124.45 DATA CARD 2 0.17 10.70 5.00 75228 75 530 2 6 140.0 150.0 115.50 124.45 DATA CARD 3 8.80 75228