340 C. A. SUSSMILCH. 



V. Tinderry Fault Block. — This is situated some ten 

 miles to the east of Michelago on the Oooma railway line. 

 The writer has only seen it from a distance and is therefore 

 unable to give first-hand observations. Some information 

 can be gathered, however, from the altitudes of the Trigono- 

 metrical Stations, which include the following : — 



Tinderry Pic 5,307 feet. Tumanang 4,835 feet. 



The Bald Mountain 4,812 „ Tumanmang 4,656 „ 

 Holland Trig. 4,563 „ Anembo 4,642 „ 



As none of the residuals (these higher trigonometrical 

 stations are most probably on residuals) in the other parts 

 of the southern tableland are much over 1,300 feet above 

 the level of the Monaro peneplain, it is probable that where 

 these high points occur this peneplain has an elevation of 

 about 4,000 feet. This would give the surface of the 

 Tinderry fault block an altitude of about 4,000 feet. In 

 any case there can be no doubt that it has a very consider- 

 able altitude. Its western edge is marked by a fine fault 

 escarpment, very probably a continuation of the fault 

 described by T. G. Taylor 1 as occurring along the western 

 side of the Lake George Senkungsfeld. This fault will be 

 called here the Tinderry Fault ; it hades to the east and 

 has a throw of probably at least 1,500 feet. Followed to 

 the south this fault rapidly dies away. The area of this 

 fault block is apparently limited, extending little beyond 

 the main divide to the east, and no further than Bredbo 

 Creek to the south. 



VI. Kosciusko Fault Block. — This is the highest of all 

 the fault blocks and is the most elevated region on the 

 Australian continent. Prof. T. W. E. David 2 gives the 

 following summary of his conclusions regarding the physio- 



1 The Lake George Senkungsfeld by T. G. Taylor, b.bc, b.e. Proc. 

 Linn. Soc. N.S.W. Vol. xxxn, part 2. 



8 Geological Notes on Kosciusko by Prof. T. W. E. David. Proc. Linn. 

 Soc. N.S.W., Vol. xxxm, t>. 666. 



