﻿part 3] STANNIFEROUS DEPOSITS OF KINTA DISTRICT. 



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Grunong Kinjang (4780 feet) to the Sungei Turaboh, as shown 

 on the accompanying map (PI. XV). 



The chief river of the district, the Sungei Kinta, flows practi- 

 cally along the whole length of this part of the country, from 

 north to south, and is joined on the north-west by a small stream, 

 the Sungei Pari. On its left bank it receives, as tributaries, the 

 Sungei Raia, the Sungei Kampar, and two or three other small 

 streams. 



The granite of the Main Range on the east occupies roughly 

 half of the entire area, and on the west the granite of the Kledang 

 Range covers a stretch of country about 25 miles long and, on 

 an average, well over 2 miles wide. 1 It is evident, therefore, 

 that a considerable part of the district is occupied by granite. 

 The granite of the Main Range, as will be pointed out later, is 

 known to be stanniferous in a very large number of places ; 

 while that of the Kledang Range has proved, especially at Meng- 

 lembu and Chendai, where it has been extensively crushed, to 

 be highly stanniferous. 



The floor of the Kinta Valley, as the low-lying part of this 

 district may be called, has been shown, in a very large number of 

 opencast tin-mines, to consist of a metamorphosed limestone with 

 a very irregular surface. 



Where the feature formed by the granite of the Kledang Range 

 disappears in the southern part of the vahVy, granitic intrusions 

 in the limestone are common — for example, between Siputeh and 

 Tronoh, between Tronoh and Kamuning Jawa, and farther south 

 .at Tanjong Toh Allang. Intrusive veins of pegmatite, aplite, and 

 quartz traverse the limestone, and frequently carry tin-ore ; masses 

 of granite, forming distinct features, are also known : these are 

 shown on the accompanying geological map (PL XV). 



Between Lahat and Papan the granite is in contact with schists 

 and phyllites : these latter rocks, as will be shown, prove to be 

 veined with granitic intrusions carrying tin-ore, and are almost 

 certainly connected Avith the granite of the Kledang Range. On 

 the east at Tekka, Ulu Oopeng, Tanjong Rambutan, and other 

 places, the decomposed schists contain cassiterite-bearing granitic 

 intrusions ; and the rocks near the granite-junction, in numerous 

 other cases in the Kinta district, have been worked for tin -ore 

 occurring in them as stockworks. 



With the exception of a few patches in the caves in the lime- 

 stone cliffs, to which reference will be made later, and those of the 

 foothills and granite ranges, the tin-ore deposits of the Kinta 

 district are found in the valley between the two ranges. In the 

 north this valley (the Kinta Valley) is only about 6 miles wide, but 

 it opens out southwards until it becomes twice that width between 

 Pusing and Gopeng. It is a flat-bottomed valley with steep eastern 



1 J. B. Scrivenor, ' The Geology & Mining Industry of the Kinta District ' 

 1913 : see sketch-map at the end, and also the map accompanying - this 

 paper (PI. XV). 



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