436 NOTE ON THE SYDNEY COAL FIELD — GILPIN. 



coal basin in this direction, and between this line of outcrop and" 

 Sydney is an interval of disturbed strata. From the line of fault 

 to the centre of the Cossitt basin at the synclinal the distance 

 varies, but may be roughly estimated at about one mile. The 

 dips over this interval decrease from 46*^ to 20", and shortly 

 before the synclinal is reached three seams have been exposed 

 dipping- to the south-west at an angle of 30°, and yielding the 

 following section : — 



Feet. Inches. 



Coal 2 



Strata 100 



Coal 2 



Strata 20 



Coal 2 



About three-quarters of a mile further to the south-west are 

 met the LeCras seams, dipping the reverse way, or to the north- 

 east, at an angle of 7*^. Here the following section has been^ 



proved : — 



Feet. Inches. 



Coal 1 10 



Strata 100 ? 



Coal 2 2 



Shale" 8 



Coal 2 



This evidently corresponds with the seams found on the 

 reverse dip and already alludei to. From this point the western 

 outcrop of these seams runs in a south-easterly direction parallel' 

 to the Mira road and crossing the Morrison road a little to the 

 east of its junction with the Mira road, and continuing until 

 Black Brook is nearly reached. At this point the south-western 

 side of the basin appears to be turning to the eastward, possibly 

 showino- that the end of the basin is reached, and that the strata, 

 are falling in with the normal dip of this part of the district 

 which is a little to the east of north. 



To the south of the Morrison road, nearly five miles from its: 

 junction with the Mira road, several outcrops of seams have been: 



