X-RAY ANALYSIS 87 



Table 29-B. Interplanar spacings of the finer fractions of certain Carnegie bottom samples--Concluded 



Samples of low CaCOs content--Concluded 



Symbols refer to intensity of characteristic spacings for substances indicated: vs = characteristic spac- 

 ings are very strong in pattern; s = strong; mw = moderately weak; w = weak; vw = very weak; ww = very, 

 very weak; tr = trace; ? = spacings are possibly present or some spacings are missing; m = moderate; ms 

 = moderately strong. 



