152 The N.Z. Journal of Science and Technology. [Sept. 
Ashburton— 
Clent Hills Station. 
Rangitata— 
Potts River. 
Coal Creek, Mount Peel. 
Mackenzie Country— 
Coal River, Tekapo. 
Most of the areas have been referred to by various writers, but no 
description of the Sloven’s Creek area has been given, so I append the follow¬ 
ing account of the beds to be found in that locality :— 
3. Sloven’s Creek Area. 
About a mile to the east of the area just described, and separated from 
it by a barrier of greywacke, lies another patch of Tertiary sedimentaries. 
These are developed in the angle between Sloven’s Creek and Broken River, 
extend across the latter to the flanks of Mount Torlesse, and run as a narrow 
strip for about a mile and a half up Sloven's Creek to the vicinity of the 
Avoca Railway-station. There is also a subsidiary occurrence immediately 
to the west of this, in Broken River and separated from it by a bar of grey¬ 
wacke, and also another small occurrence about a mile and a half up 
Sloven’s Creek above the railway-station. It will be best to deal with the 
former of these small occurrences first. 
The beds exposed on the south side of the river consist of sandy clays 
with impure coal, succeeded by white sands, striking north and with a 
vertical dip. On the north side of the river immediately opposite occur 
concretionary greensands, striking east and west and dipping north. The 
relations of these beds to those south of the river are not clear, since the 
exposure is limited, but both are flanked on either side by greywacke as if 
they had been let down or pulled down along a fault-line. The east-and- 
west strike of the beds north of the river is in agreement with that of the 
major occurrence farther east, to be noted later. 
Farther down-stream there is a bar of greywacke and jasperoid cherts 
lying unconformably under and succeeded by the following conformable 
sequence 
1. Whitish sands with impure lignite. 
2. Cream-coloured and light-brown sands, with gravel lenses. 
3. Conglomerate, exposed in the bed of a creek coming in from the 
south. 
4. Sands, slightly glauconitic, striking north and south and dipping- 
east 45°. 
5. Sands, decidedly glauconitic. 
6. Pebble bed, 7 ft., including lenticular patches of sand. The pebbles 
are angular and subangular, with occasional well-worn frag¬ 
ments of shells, especially those of oysters. 
7. Concretionary sands, 700 ft., some layers very coarse and gritty 
with occasional pebble-beds at different levels. These beds 
rest unconformably on greywacke exposed near the river- 
level. At their contact with the greywackes these beds have 
a dip of 40°, but this flattens out considerably at higher levels, 
perhaps in sympathy with changes in the beds north of the 
river. 
