A Further Contribution on the Karroo Rocks of Tanganyika Territory

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Abstract
The occurrence of Karroo rocks in Tanganyika has been known virtually from the time of Livingstone, who is reported to have discovered coal in the Upper Rovuma. The best known occurrence is that south of Manda, near Lake Nyasa, which is described by Bornhardt. To people within the Territory, however, the Ufipa coalfield in the Kigoma Province is the most familiar. The following list of outcrops of definitely known Karroo rocks is given in order of economic importance. 1. Ruhuhu coalfields, Njombe and Songea Districts. 2. Kivira-Songwe coalfields, Tukuyu District. 3. Ufipa coalfield, Ufipa District. 4. Kidodi area, South Kilosa District. 5. Rufiji-Ngerengere area, Morogoro and Rufiji Districts. 6. Tanga. 7. Mitomoni on the Portuguese border, on the Rovuma, south of Songea. Other areas where rocks occur which are now considered to be of Karroo age, though the evidence of fossils is wanting, are 8. Uha area, in Kigoma District. 9. Kingongolero Hill, south of Manyoni. 10. The Rufiji-Luwegu area in the Mahenge and Liwale Districts. The last-named is an area which may possibly be extended, and may finally link up with the Ruhuhu coalfields in the Songea District in the south; in the north, it passes into the Rufiji-Ngerengere and Tanga districts, and is partly overlain by marine Jurassic rocks north of the Central Railway. It is thus a region which may extend for nearly 500 miles, from Lake Nyasa to Moa, north of Tanga, and in which Karroo rocks are actually exposed for 350 miles. The Karroo formation

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