th234_irs

 PI:              John Hedges, Stuart Wakeham & Cindy Lee         
 dataset:         Thorium-234 flux rates Indented Rotary Sphere
                              sediment trap samples
 project/cruise:  EqPac/TT007
 ship:            Thomas Thompson

 All traps deployed at approximately 100 meters

 Sampling Methodology
 Sampling Protocols

 Parameter     Description                                  Units

 event        event number for trap deployment from 
                event log
 date_end     date trap recovered also defined as           MMDDHHmm 
                event number for trap recovery
 sta          station number from event log
 lat_n        nominal latitude of trap along 140 W          whole degrees
                (negative = south)
 Th234_p_f    Particle Thorium-234 flux rate                dpm/cm2/day
                (dpm = disintegrations per minute)