Published online by Cambridge University Press: 01 May 2009
IN the early days of the Geological Survey of Scotland, the rocks of the Ballantrae Igneous Complex were thought to be of metamorphic origin. Thus in the memoir explanatory of sheet 7, scale 1 inch = 1 mile, published in 1869, it is stated that the chief interest attaching to the altered strata of this district consists in the fact that they exhibit certain arrested stages of metamorphic action. But less than ten years after that date the erroneous character of this opinion was made abundantly clear by Professor Bonney.Equipped with experience gleaned in the Lizard, Bonney quickly recognized in Ayrshire a correspondence in the nature of the phenomena. Excellent descriptions were furnished by him of some of the lavas, serpentines, and gabbros, and their true igneous character emphasized.
page 107 note 1 “ On the Serpentine and Associated Igneous Rocks of the Ayrshire Coast,” Quart. Jour. Geol. Soc., xxxiv, 1878, 769.Google Scholar
page 108 note 1 Bull. Geol. Dept. Univ. California, i, 1893, No. 3.Google Scholar
page 110 note 1 Proc. Linn. Soc. N.S. Wales, xliii, 1918, 372.Google Scholar
page 110 note 2 Sil. Mem., 445.Google Scholar
page 112 note 1 Sil. Mem., 469.Google Scholar
page 115 note 1 On Magmatic Nickel Deposits of the Bushveld Complex in the Rustenburg District, Transvaal, Union of South Africa Geological Survey, Mem. No. 21, 1924Google Scholar
page 116 note 1 Sil. Mem., 482.Google Scholar
page 117 note 1 Sil. Mem., 476.Google Scholar
page 119 note 1 Sit. Mem., 477.Google Scholar
page 119 note 2 Lizard Memoir, 1912, 88 and 89.Google Scholar
page 121 note 1 Sil. Mem., 480.Google Scholar
page 121 note 2 “ The Passage of a Dolerite into a Hornblende Schist,” Trans. Geol. Soc. Glas., xiii, 187.Google Scholar
page 121 note 3 “ A New Occurrence of Picrite in the Ballantrae District and its Associated Rocks,” Trans. Geol. Soc. Glas., xiii, 283.Google Scholar
page 123 note 1 And it is right to add that many of the relict felspar crystals of the above granulites exhibit the curious type of clouding, or schillerization, which Mr. A. G. MacGregor has recently recognized as a characteristic effect of thermal metamorphism. Ref. Min. Mag., xxii, 524. D. B.Google Scholar
page 125 note 1 “ On the Petrology of Eastern Fennoskandia. I: The Mineral Development of Basic Rocks in the Karelian Formations,” Fennia 45, No. 19, 90 (Helsingfors, 1925).Google Scholar
page 125 note 2 Jour. Phys. Chem., 28, 1924, 1167.Google Scholar
page 126 note 1 “ On the Spilitic Rocks,” Geol. Mag., LXVII, 1930, 1.Google Scholar
page 126 note 2 “ Södra Storfjället im südlichen Lappland,” Sveriges Geol. Unders, Årsbok 21, 1927, No. 5, 1929.Google Scholar
page 126 note 3 “ Die Magmagesteine der Geosynklinale von Nowaja Semlja,” Report of the Scientific Results of the Norwegian Expedition to Nowaja Zemlya, 1921, No. 45, 1930.Google Scholar