252 



L. M. Parsons — Bolomitization 



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SCALE /v niLES 



Map showing the position of the Leicestershire Dolomites compared with those 

 of the Carboniferous Limestone of Derbyshire and of the Charnwood 

 Pre-Cambrian. 



5. The Absence or Presence of Fossils in Dolomites. 



It is doubtful whether any reliable evidence of the period of 

 dolomitization can he obtained from the absence of organic remains. 

 A primarily precipitated dolomite would probably be deposited under 

 conditions unfavourable to life, but it is also conceivable that either 

 contemporaneous or subsequent dolomitization could be so complete 

 as to obliterate all traces of organic structures that may have been 



