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 67 494 A 1 3 144.0 150.0 37.50 41.97 DATA CARD 1 COMBINATION 7.62 COLORIMETRIC 49.9 35.8 3.17 55.66 19.06 LABNB 67 494 A 8 1 144.0 150.0 104.50 105.97 DATA CARD 1 COMBINATION 7.73 COLORIMETRIC 59.7 35.5 2.48 55.07 19.01 LABNB 67 494 A 17 1 140.0 150.0 189.50 190.95 DATA CARD 1 COMBINATION 7.54 COLORIMETRIC 16.5 33.3 11.63 45.42 19.14 LABNB 67 494 A 19 1 140.0 150.0 208.50 209.95 DATA CARD 1 COMBINATION 7.33 COLORIMETRIC 7.4 33.0 17.45 40.64 19.53 LABNB 67 494 A 22 3 110.0 120.0 237.00 241.15 DATA CARD 1 COMBINATION 7.59 COLORIMETRIC 2.6 34.1 42.91 28.32 19.74 LABNB