CHAP. 3.] KARNÜL FORMATION.—JUMMULMUDGOO GROUP. 8t 
The intercalation of quartzite, and cherty and brecciated seams 
of limestone among the lowest beds of the 
Indefinite position of 
quartzites and breccia Jymmulmudgoo group, is very confusing, par- 
D ticularly as there is no continuous outcrop of the 
. lowest beds for any distance. For instance, the most continuous out- 
crop of the lowest beds of the Nerjee rocks shows no passage from 
their bottom beds into the quartzites below, except by a few sandy 
calcareous shales occasionally : throughout some miles of scarped out- 
erop of nearly horizontal beds, there are limestones lying directly on 
sandstone-quartzites with only a few thin beds of calcareous and 
earthy flags and shales. And then we have in the other cases just 
related, the intercalations of a patch of quartzite, or of thin beds 
of this rock. 
Tt is difficult thus to make out how the different bands of quartzite 
are lying with regard to each other; and whether they are above or 
below the brecciated band. From all that can be made out, the inter- 
calated quartzites are very nearly on the same horizon with the 
red-purple chert-seamed limestones. This is the case in a long east- 
west valley cutting through the hills between Paneum and Boganpully. 
There is some approach to this, though with no decided bed of 
quartzites, on the Coondanacota terrace on the south side of the 
Oopalpad plateau below Boorgul; where, in passing over a good spread 
of the purple cherty limestone west-south-west of Coondanacota, traces 
of a half sandy set of beds come in. In working out the large patch 
of intercalated sandstones in the Oorchintala plateau further south, 
. & northern extension of the little group distinctly shows along its 
eastern side, as coming in under the cherty beds. 
The seam of breccia beds is below the quartzites, and wherever it 
occurs it is at or near the bottom of the group. There is rather a clear 
section displayed immediately east of the village of Goodypaud, also 
on the limestone terrace below the southern scarp of the Oopalpád 
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