306 THE MOSSEL BAY OUTLIER 



glomerates lying at a considerable distance above the 

 base of the Uitenhage beds, as at Honig Klip Kloof, 

 where there are magnificent sections through a coarse, 

 white conglomerate, composed almost entirely of pebbles 

 and boulders of Table Mountain sandstone and quartz- 

 ite ; the Honig Klip Kloof conglomerates are inter- 

 bedded with pale, sandy beds, and probably form about 

 a half of the whole thickness, some 500 feet, exposed 

 along the valley. The pebbles in the conglomerates 

 are usually very well rounded ; they must have been 

 rolled about for a long time and reduced to their pre- 

 sent form before being buried in the sandy or muddy 

 matrix of the rock. 



The beds of conglomerate are by no means con- 

 fined to the base of the series ; they seem to occur at 

 intervals throughout the whole thickness of rock, and 

 are separated by beds of shales, sands or mudstones. 



The maximum thickness of the Uitenhage beds in 

 Mossel Bay is rather considerable. They lie compara- 

 tively undisturbed, for the angles of dip are low ; they 

 certainly descend below sea level in places, and the bed 

 of the Gouritz River, both just below the gorge through 

 the Langebergen and to the north of Roode Hoogte, lies 

 in sandstone and pebble beds of this series ; they form 

 practically the whole of the hills between Herbertsdale 

 and the watershed north of the Stink River. The tops 

 of these hills are mostly formed by some twenty feet or 

 less of the surface deposits resting unconformably upon 

 the Uitenhage rocks, but as the average height of the 

 hills is over 1,000 feet the greatest thickness of the 

 Uitenhage beds is probably rather over that amount. 



