TAB. XIV. 



' 



ARGILLA Marga. 

 Argillaceous Marie. 



Class 1. Earth. Ord. 2. Mixed. 



Gen. 5. Argil*. Spec. 1. Argillaceous marie. 



Div. 2. Semi-indurated. 



Spec. Char. Argil and carbonate of lime, in which 

 the former predominates. 



Syn. Marga argillacea. Waller, v. 1. 72. , 

 Mergel. Emmerling, v. 1. 491. 

 La Marne. Brochant, v. 1. 569. 



.. i 



Argile calcarifere. Hauy, v. 4. 455. 



This is represented as showing the distinguishing charac- 

 ters, or parts, of marie, which, if minutely combined, might 

 require a chemical analysis to determine them ; and may be 

 useful to young mineralogists. Calcareous marie consists 

 of carbonate of lime from 66 to 80 per cent. Kir. v. 1 . 94. 

 Marie properly so called consists of equal parts of clay, and 

 carbonate of lime. Argillaceous marie contains about three 

 parts clay, and one chalk. Mr. Andreas, in Kir. v. 1. 192. 



* Common clay, which may be distinguished under most combinations- 

 by what is commonly called an earthy scent. 



