REFERENCES
- du Toit , A. L. 1904 . “Geological Survey of Aliwal North, Herschel, etc.” . 71 – 181 . Rep. Geol. Comm. C.G.H
- du Toit , A. L. 1905 . 95 – 140 . “Geological Survey of Glen Grey and Parts of Queenstown, etc. “, Rep. Geol. Comm. C.G.H
- George , W. O. 1924 . “The relation of the physical properties of natural glasses to their chemical composition” . J. Geol. , xxxii : 353 – 372 .
- Harker , A. 1904 . “The tertiary igneous rocks of Skye” . 245 Mem. Geol. Surv. United Kingdom, 246
- Hatch , F. H. 1912 . “Note on an interesting contact of dolerite with sandstone from the Ecca beds of Elandslaagte, Natal” . Ann. Natal Mus. , ii : 393 – 395 . part 3
- Kent , L. E. and Frankel , J. J. 1948 . “Studies on Karroo dolerites. (4) On intrusions of glass in dolerite” . Trans. Geol. Soc. S. Mr. , li : 179 – 193 .
- Poldervaart , A. 1946 . “The petrology of the Mount Arthur dolerite complex, East Griqualand” . Trans. Roy. Soc. S. Afr. , xxxi : 83 – 110 .
- Reynolds , Doris L. 1940 . “Contact metamorphism by a tertiary dyke at Waterfoot, Co. Antrim” . Geol. Mag. , lxxvii : 461 – 469 .
- Tomkeieff , S. I. 1940 . “The dolerite plugs of Tieveragh and Tievebulliagh near Cushendall, Co. Antrim, with a note on buchite” . Geol. Mag. , lxxvii : 54 – 64 .
- Young , A. 1918 . “Fusion of Karroo grits in contact with dolerite intrusions” . Minutes Meeting, October 30, Trans. Roy. Soc. S. Afr. , viii xxix