APPENDIX C 

 SEDIMENT DESCRIPTIONS 



Appendix. C contains visual description of sediments contained in 

 cores from the study area. 



Core number, CERC identification number, and sample depth in core 

 are listed to the left. 



Visual descriptions are based on both megascopic and microscopic 

 examination. The descriptive statement generally contains (in order) 

 the following elements: 



1. Color 



2. Color code per Munsell Soil Color Charts (1954 edition)* 



3. Dominant size or size range. 



4. Major compositional element or elements with the 

 dominant constituent listed first. 



5. Phrases identifying readily recognized constituent elements 

 with an estimated frequency of occurrence in terms of total 

 particles. The frequency terms indicate the following 

 percentages : 



a. Profuse, 30-50% of total particles 



b. Common, 10-30% of total particles 



c. Sparse, 2-10% of total particles 



d. Trace, less than -2% of total particles. 

 The cores are plotted on Figures 2 and 3. 



Munsell Soil Color Charts, 1954 Edition, Munsell Color Co., Inc., 

 Baltimore, Maryland 



86 



