14 
Records of the Geological Survey of India. [vol. x. 
striae running north-east—south-west. This is strongly confirmative of the probability of 
glacial action having contributed to the transport of the large boulders seen at Lowo. It 
should, however, be mentioned that the boulders seen near Pokran were all rounded, and 
none exceeded the dimensions often carried down by an ordinary stream. 
Abont a mile north-west of Pokran, in some ravines, the sandstones are seen abutting 
against both Malani beds and shales, and apparently resting unconformably upon both. 
Pokran to Jesalmir .—Prom Pokran to Lathi, the country is a sandy plain in which 
rock appears at but few places, and is even then very ill seen. The few exposures which 
occur belong to various groups, and it is often difficult to assign them with any certainty. 
Four miles west of Pokran, volcanic rocks (Malani beds) are exposed in a tank, and a few 
fragments seen on the road-side further west are probably the same. About nine or ten miles 
from Pokran, red sandstone is seen in place ; but it is conglomeratic, and does not resemble 
the Jodhpur beds. Near Odhania some old-looking impure limestone occurs, of various 
colours, yellow, brown, slatey, white, &c., associated with whitish quartzite. Some of the 
limestone resembles that of the Lower Viudhyans. 
At Odbania itself grey shaley sandstones are seen in a tank east of the village, 
whilst to the north-west massive greyish and white sandstone and grit are exposed, and 
quartz pebbles scattered over the surface indicate the presence of conglomerate. These 
beds differ from anything previously seen and probably belong to the Jurassic series. West 
and south-west of Odhania fragments of diorite and porphyry occur, containing, besides 
felspar, kornblend or augite crystals; and, about half a mile west of the village, fine 
grained syenite is seen in place. These rocks evidently belong to the Malani series. 
On a rise two miles west-20°-north of Odhania, scattered fragments of white quartzite 
are seen; then, half a mile farther west, a conglomerate is exposed of various pebbles, 
chiefly felsite, in a matrix of red grit. This bed precisely resembles the boulder-bed 
of Pokran. Half a mile farther quartzite recurs; it is finely laminated and white or 
grey in colour. This was the last exposure of the older beds noticed. The quartzites 
and old limestones may belong to the same series as the shales and boulder-beds of 
Lowo and Pokran, but nothing can be determined from the very poor exposures seen. 
About four miles before reaching Lathi, dark-brown, hard ferruginous sandstone is 
seen, resembling the “ iron bands” of the Mahadeva and Kamthi beds, and the same 
reappears a mile further on a rise to the north of the road. This rock belongs to the 
lower portion of the Jurassic beds. For a mile or two before reaching Lathi, and for 
about the same distance west of the village, soft whitish and reddish sandstones are 
exposed in a hollow, which has been the bed of a stream. The beds are nearly horizontal; 
they abound in fragmentary vegetable remains, none of which, however, can be identified. 
Large blocks of silicified wood occur unrolled; none of the larger fragments were seen 
in place, but smaller pieces, less well preserved, are embedded in the sandstone. 
For many miles west of Lathi there is the same sandy plain as to the eastward 
rocks being only seen at very few places, as at Sodakhor, six miles west of Lathi, where 
calcareous conglomerate with sandstone pebbles, grey sandstone, and black ferruginous 
sandstone occur; nothing more is seen for twelve miles. Near Shawal a low scarp is crossed, 
consisting of the same grey sandstone, with hard blackish ferruginous bands; and 
this scarp can be traced for a long distance to the southward. A little farther west 
yellowish-brown limestone crops out, weathering red and containing fossils, apparently 
Gasteropoda. The succession of low scarps dipping westward shews that an ascending 
series of beds is traversed, the westwardly dip being, however, very low. 
