﻿1851.] 



LOGAN — GEOLOGY OF SINGAPORE. 



325 



Amongst the most continuous lines that I have observed are that 

 of Bukum, Jong, and Sabam, nearly N.W. -§W. throughout; the 

 Batu Blyer sandstone-cliffs along a considerable portion of their 

 length ; some of the shale-beds extending from Tiloh Blangah and Pulo 

 Brani to Blakang Mati ; the most southerly beds of Sikukur which 

 are continued in the West Sikijang. But the greater number of the 

 islands and points, where the stratification can be observed, present 

 irregularities. Thus, to notice the most marked instances, proceed- 

 ing from north to south, at Marambong we not only find the more 

 ordinary oscillations, such as N.N.W., N.W. \ N., &c, but bends 

 and curves, so that at some places the beds run N.E. by E., N.N.E., 

 &c. At Busong similar irregularities occur, as we see N.E., N.E. 

 by N., N.N.E., N., N. \ W.JNLN.W. \ W. At Tanjong Lompatan 

 the strike is N.E., E. by $., &c. The more common variations are 

 such as those of Batu Blyer Cliffs, N.N.W., N.W. by N., N.W. ; 

 Blakang Mati, N.N.W., KW.^W., N.W. by W.; P. Brani, N.N.W., 

 N.W. by N., N.W. ; the hills east of the village of Tiloh Blangah, N. 

 by W., N.N.W., N.W. by N. ; West Sikijang, N. by N.W., N.N.W., 

 N.W. by N. ; East Sikijang, N. by N.W., N.W. \ W., W. by N. ; 

 Tanjong Pinger, N. by W., N.N.W., N.W. by N. ; N.W., N.W. by W. 

 at Tanjong Malang ; N.W. by W. and N. by W. in Mount Wallich 

 (25); N.W. by W. and N.W. by N. in Pearl's Hill (28). The 

 most prevalent strikes recur in almost every locality where the strata 

 are well exposed. N. by W. beds are seen in Sambo Kichi, Tanjong 

 Pinger, Tiloh Blangah, and both Sikijangs, Mount Palmer (24), 

 Mount Wallich (25), and Tanjong Pagar ; N.N.W. in T. Pinger, 

 T. Dangas, Marambong, Sikra, Batu Blyer, Blakang Mati, Pulo 

 Brani, Tilo Blangah, Sikukor, West Sikijang, Tanjong Pagar, Tan- 

 jong Malang, Government Hill (35) ; N.W. by N. in T. Pinger, 

 Batu Blyer, T. Blangah, P. Brani, and West Sikijang ; N.W. in 

 Piel Ayem, Tanjong Gul, Batu Blyer, Hodin's Hills, Pulo Hantu II. 

 (12), Panti Chirmin (13), Pulo Brani, and Blakang Mati, Tanjong 

 Malang, and the east point of Bintang ; N.W. \ W. in Bukum, Jong, 

 B. Blyer, B. Mati, West Sikijang, and Tanjong Pungai ; N.W. by W. 

 in Sabaru, Batu Blyer, Hodin's Hills, T. Blangah, P. Brani, Blakang 

 Mati, Timukul, Mount Wallich (25), Dickinson's Hill (29), and 

 Pearl's Hill (28) ; in the shale-beds between Tilo Blanga and the 

 Sepoy Lines (30), N.W. in the same beds to the west of Bukit Timah. 



The variations in dip, like those of strike, have a general character 

 of uniformity, with considerable occasional deviations. Vertical or 

 approximately vertical strata occur in P. Blakang Padang, Sambo, 

 T. Pinger; T. Busong, Jong, Bukum, the Batu Blyer Range, Ho- 

 din's Hills, the N.W. point of P. Blakang Mati, the Tiloh Blangah 

 Hills, Mount Palmer. Oscillations may be observed in Marambong ; 

 in Busong ; in the Batu Blyer Range of about 70°, or from 25° W. * 

 to vertical and a few degrees from vertical to the E. ; in Tanjong Pinger 

 about 75°, or from 20° W. to vertical and a little to the E. ; in 

 P. Blakang Mati of about 45°, or from 50° W. to a little E. of verti- 

 cal ; in West Sikijang of about 90°, or from 45° W. to 45° E. ; in 

 * W. and E. are here used for westerly and easterly. 



