EVOLUTION OF LIMESTONE AND DOLOMITE 



399 



TABLE XIII 



The Calcium Magnesium Ratio of Fresh Rocks and Their Equivalents Altered 

 by Hot Solutions Adjacent to Ore-bearing Fissures 



It is obvious that if metamorphism continued until all rocks 

 were separated into end products, the residuals remaining in 

 place and the materials lost transported to the sea, it would result 

 in a running down of the calcium content of the lands, and a 

 relative increase in magnesium. 



