NORTHERN WATERSHED OF THE TEEREE TOWEY BASIN. 87 



is reversed, leading the beds at high angles below the numraulitic 



limestone, but the junction of the two groups is generally concealed 



by debris of the latter rocks. Crossing this limestone the following 



section was found everywhere inverted : — 



Feet. 

 8, Thick, compact alveolina limestone, white and yellow, very lumpy in places, 

 and containing clusters of coral fossils impacted, and difficult to dis- 

 tinguish, about ... ... ... ... ... 30 to 50 



7. Thin, lumpy, and marly light coloured limestone full of fossils, num- 

 mulites, oysters, &c. ... ... ... ... ... 20 



6. Strong limestone full of very small nummulites ... ... ... 6 



5. Thin and thick regular limestone with few fossils, semi-oolitic looking ... 40 



4. Earthy-gray limestone with greenish shales, nummulites ... ... 15 



3.' Remains of a hand of cherty limestone of dark colour containing white 



fossil fragments, no nummulites found ... ... . y 21 



2. Red clay ... ... ... ... ... ... ^15 



1. White, gray, and variegated gypsum occupying 60 yards of horizontal 



space, may be ... ... ... ... ... 100 



Crossing this gypsum mass, at its northern side was found a thick 



Difference at each side zone of greenish clays not seen to the southward, 

 of the section. an( j b e y 0n( l it a thinner band of gypsum occurred, 



all dipping steeply to the north. Over the latter gypsum, the red clay 

 previously met with was much more largely developed, and immediately 

 succeeded by nummulitic limestone forming the crest of the ridge, the 

 debris from which largely concealed the clay and gypsum just below. 



Although there is a want of continuity, and the greenish clay would 

 seem to be capriciously distributed through the gypsum, the steady 

 high northern dip from the plain or valley to the south as far as the 

 gypsum here must be considered inverted, this gypsum forming the 

 centre of an overthrown anticlinal curve. The dip continues still high 

 to the north, but after leaving the gypsum the order becomes natural ; 

 the nummulitic limestone of the crest is succeeded by the hard light- 

 coloured alveolina marble, and the tertiary sandstones, clays, &c, which 

 seem buried beneath the whole section, appear at top in the valley between 

 this place and Lachee (Lachi) . 



( 191 ) 



