InorgSedChem_PC72

 PI:              Richard W. Murray               
 of:              Boston University
 dataset:         Sediment Chemistry from piston core PC72
 dates:           August 1, 2002  (20020801)            
 location:        Equatorial Pacific (O N 40 W)
 project/cruise:  EqPac/TT013, Benthic survey 
 platform:        R/V Thomas Thompson


 Data were contributed May 2013 as two separate spread sheets.  
 The data were combined into a single data set.


  Parameter                Description                                             Units

  event                    event number from event log                             dimensionless
  sta			   sta number from event log                               dimensionless
  lat                      latitude, negative denotes South                        decimal degrees
  lon                      longitude, negative denotes West                        decimal degrees
  depth_w                  depth of water                                          meters
  core_type                core type                                               dimensionless
  depth_core               depth in core, mid-point of interval sampled            centimeters
  CaCO3                    Calcium Carbonate                                       weight percent
  d18O                     delta oxygen isotopes -18 and -16                       SMOW
  opal                     opal in sediment                                        weight in percent
  sed_rate_linear          linear sedimentation rate calculated from d18O          centimeters/kiloyear
  TOC                      Total Organic Carbon                                    weight in percent
  Fe                       Fe (Iron)                                               parts per million
  Al                       Al (Aluminum)                                           parts per million
  P                        P (Phosphorus)                                          parts per million
  Ti                       Ti (Titanium)                                           parts per million
  Ba                       Ba (Barium)                                             parts per million
  Ba_Ti_ratio              Barium to Titanium ratio                                parts per million
  Al_Ti_ratio              Aluminum Titanium ratio                                 parts per million
  P_Ti_ratio               Phorphorus to Tin ratio                                 parts per million
  mass_acc_rate_delta_180  delta 18O-based Mass Accumulation Rate                  parts per million
  mass_acc_rate_230Th	   230Th-based Mass Accumulation Rate                      parts per million
  density_dry_bulk	   Dry Bulk Density of sediment calculated from CaCO3      micrograms/centimeter^3
 
 nd indicates no data or sample too small to analyze