GEOLOGY OF CENTRAL INDIA. 69 



The above series of rocks form by far the greatest part of the 

 southern portion of the district under consideration, and numerous veins of 

 quartz make their appearance in all the rocks here observed. Beds of 

 serpentine are also found, generally in low situations, and this last some- 

 times appears to pass into chlorite schists. Of it tables, and various 

 ornamental works, are fabricated. It occurs unstratified. Marble is not 

 very abundant, but is here and there observed in beds in micaceous 

 schists, gneiss, &c. It is generally large grained, and I believe is also 

 found, though rarely so, associated with the argillaceous schists. A con- 

 siderable bed of this rock occurs near Salumhher. 



The strata are highly inclined, sometimes almost vertical. Their 

 general dip is to the N, E. or E. N. E., this is particularly the case with 

 the granitic rocks, &c. They frequently, however, dip to the N. W. and to 

 the intermediate points between N. E. and N. W. sometimes too, though 

 rarely so, they are found inclining in a south-easterly direction. The 

 strata of the softer varieties of argillaceous schist are sometimes consi- 

 derably distorted, and the more slaty varieties of this last mentioned 

 series frequently exhibit a waved aspect. No change, excepting that of a 

 gradual passage of the one rock into the other, is observed at the junc- 

 tions of the various alternating strata. In some instances where the tran- 

 sition is abrupt, and in alternations of greenstones and argillaceous 

 schists, this is frequently the case. After minute examination, I could per- 

 ceive no alteration or change of structure in either of the rocks at their 

 points of junction — the line of demarkation being well marked. 



The number of simple minerals in this district appears to be small. 

 Rock crystal, amethyst, but not of any value, — garnets, which last occur 

 in the micaceous schists, gneisses, &c., iron pyrites, which is found 

 occasionally in the argillaceous schists, calcareous spar, — schorl and 



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