DELHI QUARTZITE SERIES. 101 



Although the central and main mass of the anticline is verv 



uniformly steatite, or steatite with some 



Rocks and minerals as0 estos, the margins, where it comes in 

 associated with the " u • r\ i 



steatite. contact with the Delhi Quartzite, show some 



interesting modifications. Exposures, owing to 

 the habit of the Delhi Quartzite to break up into debris and 

 cover the junctions, arc not common : long grass at certain seasons 

 of the year and much small forest likewise often hide the junctions. 

 Instructive sections are, however, seen on the eastern margin of 

 the ellipse, lying just a little north of the direct hill-path from Dev 

 Mori to Kundol, and also round the northern end of the ellipse. 

 At the former the section exposed in a little round hill gives, in 

 descending order, (1) massive Delhi Quartzite dipping at about 

 40° or less down in the direction of Kundol. There are only some 

 hundred feet or so of this exposed, but, from the position of the 

 boundary with the Phyllites in the neighbourhood, there may be 

 as much as 1,000 feet really present. Below this comes (2) inter- 

 bedded quartzite and phyllites, together with vein-quartz, about 

 60 feet thick. Below this again (3) another GO feet down to the 

 valley bottom, consisting of calcite and pale amphibole rock, 20 

 feet thick, succeeded by 40 feet of dolomite and dolomite-talc- 

 serpentine rock with a little interbedded quartzite. 



This is the base of the section as exposed, but from the nature 

 of the little plain which forms the valley bottom and from closely 

 situated sections in a large square well and stream-bed, the thick 

 mass of steatite probably succeeds immediately below the above- 

 detailed section. 



The calcite-amphibole, dolomite, and dolomite-talc-serpentine 

 rocks are very conspicuously visible at the base of the section and 

 also as boulders strewn about the path going to Kundol. Of these 

 the dolomite-serpentine-talc rock, 8 5 9 - 7 (12414, PI. 13, fig. 1), is a massive, 

 rather brilliant, dark -green rock, tough under the hammer, and weathered 

 at the surface into holes. In thin section it shows the dolomite 

 in great ophitic plates crystallised round a confused mass of the 

 other minerals. It would probably polish into a rather handsome 

 rock. The dolomite in this rock is exactly similar to that of the 

 neighbouring bed above, namely No. 3-9-9, which is wholly com- 

 posed of the same mineral. The latter was analysed in the Geolo- 



