GEOLOGY. 
43 
n-oiiJ 1 1 - ei ^ lt ‘ Tbe § reen rock alternates with thick beds of a white quartzose and calca- 
i S . SC USt ’ aut ^ be y° ntl the pass the green rock becomes more solid, loses its stratification, 
g ar ik f C ° mCS a re S ldar greenstone, exactly like that I met with east of Sastekke, on the 
blo\-° ■ slate 1 only saw in one or two places, and then in mere fragments or 
vs , at it is evident that the whole series of rocks is the same as that south-west of Sanju. 
mar ] 6th, Chiklik to camp, about 2 miles west of Mazarkhoja. — Two short 
to -H l f S! ^°® c ^ be / 1 ' abou t 16 miles. Nearly all the way nothing was seen hut greenstone, similar 
is o m aeai ^ asab daba : towards the end of the second march this unstratified greenstone 
T ' '" (1 ani b y c filoritic schists and other bedded metamorphic rocks, resembling those to the 
*orth of the Sanju pass. 1 
^ une 6th end / th, Mazarkhoja to Grinjikalik. — Two marches, together 18 or 19 miles. A 
fatherT' 0 ^ me ^ amor P b i e rocks was met with, like those north of the Sanju pass, dipping at a 
The ei U ^ 1 an » le to north-west, west, and south-west. The whole series seems much disturbed. 
tV bm . aIent rocb is a quartzitic and higlily liornhlendic schist, traversed in all directions by rami- 
ng veins of white quartz, with some schorl, and by other darker veins, containing hornblende, 
he ' 9 irakslieldi , 10 miles. — The same metamorphic rocks continue for about a mile 
ini' r yesterday’s camp, and rest here on light-coloured, rather fine-grained gneiss, which is 
Tlii UCt ! y stratified > a nd dips to the north-west. It is traversed by dark liornblendic veins. 
bl( ,yisk wliite gneiss continues for a couple of miles, and rests on an unstratified mass of 
fol Slf 88 . P^^yry, 1 similar to that I saw west of Sarikol. This fedlspathic gneiss seems to 
Vv itll G aXJS ^ lc whole metamorphic mass ; for, further to south by east from this camp, 
"'ne' Ul1 a ^° U ^ a mde ’ it is again overlain by the same somewhat fine-grained greyish- white 
muc] S> the south. This gneiss is, again, overlain at the camp by almost vertical and 
north CC j aba tcd beds of black shale, grey sandstone, and conglomerate, the same as I saw 
series f ^ aiu ' Tlin coarse conglomerate has a comparatively recent aspect, but the whole 
j 1 ocb:s must be upper palaeozoic, although one cannot help doubting the fact, 
by t , 9th > Ktiltmaldi, 12 miles.— [This march led across the main ridge of the Kuenluen 
The * aa gi pass (16,000 feet), and down again into the upper valley of the Yarkand river. 
( spending pass to the eastward crossed on the journey to Yarkand is that of Suget.J 
np tl !° m y esterda y’s camp, the sandstones, conglomerates, and interbedded shales continued 
0 j‘ ° P a ss, where the conglomerates were of great thickness, evidently occupying the top 
ti 1( , seiaes » an d dipping with a slight angle to west. On the other or western (southern) side ol 
dip T)i a ^’ 1bc conglomerates and sandstones all continue for about 2\ miles highly inclined, and 
^vliicl & ^° Wards eas t by north; they rest at about the third mile from the pass on black slates, 
s ° 0n pass into dark grey and greenish metamorphic schist, sometimes with small garnets. 
Jcraltshedi. Yavgi. Yarkand river. 
i, c 5 a 
sra »itoid\ onglomera tc; 2 , Sandstone ; s, Shales- 4 Black slates; 5, Metamorphic rocks, dark-coloured, with quartzite; 6, Fine-grained gneiss,; 7, Unstratified 
' P or Pl>yritic gneiss. 
Section across tie Yangi Pass, north of YarJcancl River. 
The metamorphic series is often traversed by veins of a solid greenstone-like rock, and 
ai s ^ ie arkand valley there is a considerable thickness of a white quartzitic schist, 
1 Evidently, from the description, a granitoid rock. 
