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II.—Gastaldi on Italian Geology and the Crystalline Rocks1
Published online by Cambridge University Press: 01 May 2009
Extract
The present writer in 1883 reviewed the history of the rocks of the Alps and the Apennines with especial reference to the geological relations of serpentine and its associates, in a paper which appeared in the first volume of the Transactions of the Royal Society of Canada, and is reprinted, revised and with some additions, as the tenth chapter of his volume entitled “Mineral Physiology and Physiography” (Boston, 1886). Therein he gave a somewhat detailed account of the labours in Italian geology of the late Professor Bartolomeo Gastaldi, of Turin, a list of whose publications on that subject from 1871 to 1878, so far as known to the writer, will there be found, including his letter to Quintino Sella, in 1878, on the general results of explorations made in 1877 (loc. cit., 458).
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References
page 533 note 1 For a detailed discussion of the questions here raised as to serpentine and related silicates, see The Genesis of Serpentine, in the author's Mineral Physiology and Physiography, pp. 497–509;Google Scholar also further for analyses and description of the chrysolitic dolerite, ibid. pp. 211–213.
page 534 note 1 The volume here referred to was that on Azoic Rocks, being Report E. of the Second Geological Survey of Pennsylvania, 1878 (8vo. pp. xxi. and 253), and was already printed at that date, a point which I had apparently not made clear to Gastaldi, who sent the notes for the volume in question, as well as for use at the Geological Congress of 1878, where, however, the time had not yet come for their presentation. The volume on Azoic Rocks contains a brief summary of the views of Gastaldi, drawn from his published papers.Google Scholar
page 534 note 2 I have elsewhere remarked that Gastaldi, misled by his too exclusive Wernerianism, appears to have included under the name of porphyry both stratified neptunian rocks and intrusive plutonic or pseudoplutonic rocks of more than one kind.
page 536 note 1 Sul fossili del calcare dolomitico del Chaberton; Roma, 1876. Su alcuni fossili paleozoici delle Alpi marittimi et dell' Apennini ligure; Roma, 1877.
page 536 note 2 In Sardinia, however, Lower Palæozoic forms, both Cambrian and Ordovician, are met with; Mineral Physiology and Physiography, p. 476.Google Scholar
page 539 note 1 See for a detailed discussion of the questions here involved, the author's “Mineral Physiology and Physiography,” on The Geology of the Alps and the Apennines, pp. 457–482; The Serpentines of Italy, pp. 482–496; and further, The Metamorphie Hypothesis, pp. 654–673.Google Scholar
page 539 note 2 For a detailed acconnt of the Taconie controversy see the author's “Mineral Physiology and Physiography,” 517–686;Google Scholar also, more concisely and with new facts, “The Taconic Question Restated,” Amer. Naturalist, Feb. Mar. and Apl. 1887.Google Scholar
page 540 note 1 Geological Magazine, November, 1887.