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 29 281 A 3 2 0.0 6.0 36.00 37.53 DATA CARD 1 FLOW-THRU 7.51 2.9 35.2 LABNB 29 281 A 3 2 0.0 6.0 36.00 37.53 DATA CARD 5 PUNCH-IN 7.39 LABNB