66 
From the dip observations made it will be seen that the beds on the 
southern portion of the Jurassic area dip north, while those nearer the sources 
of Shady and Niue Mile Creeks dip in the opposite direction, thus apparently 
indicating a trough or syncline in the strata. The Jurassic rocks, however, 
are disintegrated so rapidly and are covered with soil to such a thickness 
that natural outcrops are rare except in the beds of streams, and, there¬ 
fore, without making an extensive series of observations, it is hazardous to 
draw a conclusion respecting their general physical structure. 
From the observations made—assuming the existence of a syncline and 
the absence of faulting on a large scale—the location of a bore to serve the 
purpose of testing the greatest thickness of strata in the locality should be 
chosen somewhere about the middle of the trough. 
The evidence furnished by the shafts and bore near Hedley proves that 
Jurassic strata extend for some distance under the Cainozoic deposits 
stretching along the foot of the ranges, but it is a matter of conjecture 
whether they underlie the whole of the flats and Corner Inlet between 
Welshpool and the granite area of Wilson’s Promontory, or that the Pro¬ 
montory granite extends well out under the flats towards Welshpool. Should 
the former be the case, the possibility of coal seams being discovered would 
be increased, since a greater thickness of Jurassic beds would be proved, 
assuming no folding and serious faulting of the strata have taken place. 
Besides the question of the presence or absence of black coal seams there 
is that of the commercial importance of the deposits of brown coal apparently 
proved by the old Hedley bore. Here at a depth of 18ft. bin. from the 
surface a 20-feet bed of it was passed through, and local report states 
that a 12-feet bed of the same material was found in the shaft in the 
vicinity. * 
Mr. Denham has also informed me that lignite outcrops on the northern 
shore of Lewis Channel, Corner Inlet, and in the swamp between the 
Inlet and Hedley. I have not, however, seen either place, nor have the 
exact locations been defined. 
6.9.00. 
* The deep bore recently completed, before entering the Trias-Jura rocks, passed through 
270 feet of Cainozoic deposits, including three beds of lignite 70 feet, 5ft. 10in., and 50 feet 
thick, respectively. Details of bore to 1,477 feet deep in Ann. Rept. Sec. Mines and W.S. 
for 1901.—31.7.02. 
¥ 
