NUMMULITIC ELLIPSOID FHOM MANZULLI TO BANDA. 107 



by dislocation. Fig. 18 shows this section across the hills south-west of 

 Sharki near longitude 71° east,, about three miles in length. 



1. Rock-salt. 2. Gypsum and greenish or gray clays. 3. Gray clays. 4. Light brown 

 sandstone and debris. R. Red clays. 5. Nuinmulitic limestones (lower ?). 5a. Nummulitic 

 sandstones, limestones, and gray clays, limestone layers containing Alveolina, Sfc. Some 

 purple clays and sandstones. 5J. Purple sandstone and red clay (very like No. 7). 6. Hard 

 nummulitic limestone. 7. Tertiary sandstone series. P. Faults. 



The principal points in this section are the absence of the two 

 lateral anticlinals seen in the east, the limestone not reaching the surface, 

 the development in the lower part of the nummulitic group of limestone 

 and sandstone bands, the former fossiliferous and the brownish sand- 

 stones of this horizon, being" limited as before to the south side of the 

 principal anticlinal axis> near which and near the little rock-salt seen tile 

 section again appears to be faulted. The absence of the red clay zone 

 elsewhere so persistent in its place at the top of the gypsum (unless 

 cancelled) appears strange, while it is found on the inner side of the 

 nummulitic limestone to the south. Another peculiarity is the apparent 

 intercalation in the nummulitic limestone of a zone quite resembling the 

 overlying lower tertiary sandstones, and the occurrence of a mass of 

 the two latter groups faulted into the gypsum area and apparently 

 structurally different as to details from the nummulitic border on either 

 side of the ellipsoid. 



Approaching this section likewise from the north, the tertiary sand- 

 Tertiary sandstones, stones and clays are found much disturbed and 

 vertical in the Tiri valley : towards the hills 

 they assume open curves_, and at foot of these a red clay zone is con- 

 spicuous among them, In a ravine up which the road led they become 

 nearly vertical, again consisting largely of gray sandstones inclined at 



high angles to the west of south. The num. 

 Nummulitic limestone. 



mulitic limestone has the same somewhat inverted 

 dip, changing to vertical, and a thickness of about 160 feet where the 

 usual hard band crosses the gorge, forming one of the difficult little 



( 211 ) 



