Table 9. — Continued 



Core 



No. 



Interval 

 (cm.) 



Standard Skew- Kurto- 

 Mean dev. ness sis 



Table 10. — X-ray diffraction data for (1) black crusts 

 from core E~26, 8-7, cm. and (2) brown earthy sub- 

 stance from core E-26, 7-10 cm. 



E-25 0-3 



E-25 3-10 



E-25 10-13 



E-25 13-15 



E-25 15-19 



E-25 ■ 19-22 



E-25 22-30 



E-25 30-33 



E-25 33-40 



E-25 40-43 



E-25 43-50 



E-25 50-54 



E-26 0-3 



E-26 3-7 



E-26 7-10 



E-26 10-13 



E-26 13-15 



E-26 15-19 



E-26 19-22 



E-26 22-25 



E-26 25-28 



E-26 28-31 



E-26 31-34 



E-26 34-37 



E-26 37-40 



E-26 40-43 



E-26 43-47 



E-28 0-3 



E-28 10-13 



E-28 20-23 



E-28 23-26 



E-29 0-3 



E-29 7.5-10.5 



E-29 19-22 



E-29 29-32 



E-30 0-3 



E-30 7.5-11.5 



E-30 20-23 



E-30 30-33 



E-30 36.5-40 



E-31 0-3 



E-31 8.5-11.5 



E-31 20-23 



E-31 30-33 



E-31 40-43 



E-32 0-5 



E-33 0-4 



E-34 0-5 



E-35 0-5 



E-36 0-5 



Observed 



pattern 



Observed 

 intensity 

 (1) 



Observed 

 pattern 



Observed 



intensity 



(2) 



7.08 M 



4.28 VW 



3.62 VVW(b) 



3.37 S 



3.18 WW 



2.95 WW 



2.50 M 



2.26 W*°^ 



2.16 WW 



1.97 WW 



1.82 M 



1.65 WW'^^ 



1.54 VW 



1.43 W 



1.42 m'^> 



1.38 M 



1.295 WW 



1.225 WW 



1.180 WW 



5.52 



4.58 



4.25 



3.35 



3.18 



2.96 



2.80 



2.59 



2.39 



2.30 



2.11 



1.99 



1.82 



1.67 



1.61 



1.55 



1.50 



1.38 



1.295 



1.195 



1.05 



W(d) 



M 



M(b) 



S 



W 



M 

 MS 

 Ms'''' 



M 



W 



(b) 



W 



W 



M 



VW 



VW 



w 

 w 



M 



VW 



VW 



WW 



Note. — "d" and "b" represent diffuse and broad peaks; WW, 

 VW, W, M. MS. S are very very weak, very weak, weak, medium, 

 medium strong, very strong intensities respectively. 



33 



