EXPLANATION OF DATA PAGES 

 OCEANOGRAPHIC LOG SHEET R 



The following is a description of the terms employed on the Sediment Analysis 

 Summary Sheet oceanographic log sheet R PRNC-NHO-3167/18 (Rev. 4-60): 



1. Cruise Number. The NODC Reference Number. (See page 

 appendix A.) 



2. Sample Number . A consectutive number, commencing with 1, applied 

 to each bottom grab sample or»core taken successively throughout the cruise. 

 Prefix of BS (bottom sample) is given, and the assigned oceanographic station 

 number is shown . 



3. Sampler Type. Identified by name of device employed. 



4. Latitude. Expressed in degrees and minutes. 



5. Longitude. Expressed in degrees and minutes. 



6. Date. Day (GMT), month, and year. 



7. Water Depth (meters) . The uncorrected sonic sounding recorded in meters. 



8. Core length (cm). Recorded in centimeters as observed in the laboratory. 

 (Not given when grab sampler was employed.) 



9. Core Penetration (cm). Recorded in centimeters as observed in the field. 

 (Not given when grab sampler was employed .) 



10. Laboratory Number. A reference number assigned to a fraction of a 

 sample retained by the laboratory. 



1 1 . Sub Sample Depth in Core (cm). Interval of sub sample as measured in 

 centimeters from top of the core . 



12. Color. Based on the Geological Society of America Rock-Color Chart. 

 For those samples where color was not determined in the field, the sample was 

 moistened in the laboratory for a color determination. 



13. Odor. A qualitative description of any noticeable odors. 



14. Size Analysis and Statistical Measures. (See pages 183 and 184 and 

 Fig. C-Q 



15. Chemical Analysis. Percentages, by weight, of (a) CaC03 and 

 (b) Organic carbon . 



186 



