110 
Records of the Geological Surrey of India. 
[VOL. TV. 
The beds seen in the river bank at Singaram are brown and white sandstones, evidently 
Dannidas, and the prolongation of the rocks seen at 
Singaram. Lmgala. Iheir dip vanes, being usually W. 10 to 
20° N., and about 20°, but it ranges from 10° to 30°, 
and is difficult to make out exactly. Down the river, Takhirs come in about half a mile or 
rather less below Singaram and 200 yards west of the village of Yegilradigudem, and dip north¬ 
west about 12°. They are thence seen in the river bank at intervals for about three and a half 
miles, as far as a little village called Eaigudem. Here the last outcrop of Talehirs occurs at a 
small jutting point; metamorphics appear about 200 yards further down the river, near the 
houses of the village. A hill not more than 100 yards from the river bank is of Vindhyan 
quartzite, but in the river itself only metamorphics are met with. The dip of the Takhirs is 
somewhat irregular, but chiefly to the north-west, and a considerable area must be exposed. 
The country west of the river from this to Bhadrachalam was only very cursorily examined. 
The great ridge of Katangota running north-east 
dem C0Untry we8t 0f God4v " £ne " to south-west is of Vindhyan quartzite j it is isolated, 
being bordered by metamorphics on the south-east, 
and partly on the north also; while to the west and south-west Talehirs occur, and a belt of 
them extend from its southern extremity to the Godavari at Diimagudem, the village of Mita- 
giidem resting upon these beds. Vindhyans re-appear in the hills south and south-east of 
Mitagudem; they form the hill about a mile west of the Godavari opposite Diimagudem, and 
extend south as far as Gondigildem, and thence for an unknown distance to the westward. 
They are much haixlened, and the softer beds are rather schistose. The southern boundary of 
the plant-bearing series runs from Ratangota bill westwards through Buga, where there is a 
hot-spring ; all Dannidas and Talehirs disappearing and massive Kamthis abutting against the 
Vindhyans. Prom near Buga the boundary runs south-west through a very wild jungle, 
metamorphics replace the Vindhyans, the latter not being found to the southward so far as the 
rocks were examined, whilst the area of the plant-hearing sandstones extends for an unknown 
distance to the west towards Paikhal. 
The anicut of the first barrier opposite Dumagfridem is on metamorphics, but just below 
Talehirs come in, apparently continuous with the 
Roots in GodSvarf near Diimagudem. larger area to the westward. They occupy the river 
bed for rather more than a mile, and are seen on both 
banks, but do not appear to extend to the eastward. They are quite characteristic, mudstones 
and fine sandstones; tlie dip is variable. Just below Amfigarpali some coarse gritty hard 
sandstone is exposed, dipping north-west; it is unusually coarse for Talehirs, being even con¬ 
glomeratic. 
The map west of the river is very inaccurate, and tile two banks by no means coincide. 
Just below the anicut, the right bank is marked too 
Inaccuracy of map. far south or dowu the river by 200 yards, whilst a 
mile farther down points on the right bank are a 
quarter of a mile farther north than those which are really opposite to them on the left bank. 
A small exposure of Talehirs is seen on the right bank of the river at Sinteral, two miles 
or rather more below Diimagudem; another on the opposite hank (perhaps part of the same) 
just below. The latter extends for about a mile east 
Talehirs south of Dumagudem. of the river. Talehirs again occur on the left bank 
just above Dautheram point, which is of granitoid 
metamorphics, and a mile and a half below they are seen for a mile along the left bank, not 
extending across to the right. They, however, stretch inland, to the eastward for about six 
miles. 
