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Petrographical Notes on the Rock-specimens collected in Antarctic Regions during the voyage of H.M.S. Erebus and Terror under Sir James Clark Ross, in 1839–43

Published online by Cambridge University Press:  14 March 2018

G. T. Prior
G. T. Prior*
Affiliation:
Mineral Department of the British Museum
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Extract

The rock-specimens collected during the Antarctic Expedition of 1839-43 were deposited in the British Museum. A few years ago, in the course of a re-arrangement and registration of the rock-specimens n the Museum, this collection amongst others was examined, and microscopic sections of some of the specimens were prepared. Nothing, however, was published at that time, since it was found that the greater part of the collection had been practically duplicated by the rocks of the Challenger Expedition, which had a year or two previously been deposited in the Museum, and it was felt that mere petrographical descriptions of specimens have but little to recommend them in the absence of geological data as to the mode of occurrence and mutual relations of the rocks in the field.

Type
Research Article
Information
Mineralogical magazine and journal of the Mineralogical Society , Volume 12 , Issue 55 , April 1899 , pp. 69 - 91
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 1899

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References

page 71 note 1 No specimens of this trachyte appear to have been collected by this German expedition, nor was one found in the Rosa collection. Some uncertainty must therefore exist as to the nature of this older formation.

page 71 note 2 Neues Jahrb. f. Min. u. Petr. 1878, pp. 825-30.

page 71 note 3 Neues Jahrb. f. Min, u. Pert. 1898 (2), 179.

page 72 note 1 Neues Jahrb.f. Min. u. Petr. 1883 (2), 224.

page 73 note 1 Neues Jahrb. f. Min. u. Pet?', 1888 (2), 181.

page 74 note 1 The precise localities referred to are -Off E. of Otago, 953 faths, lat. 45°55' S.; long. 172°46'8'' E. Off Molyneux, 6X4 faths, lat. 46°37' S.; long. 171°2'7" E.

page 75 note 1 According to Sir John Murray (Prec. Rag. Soc. 1898, LXII. p. 424) Borchgrcrink and Bull have recently brought back fragments of mica-schist from Cape Adare. A ncpheline-tephrite from the same locality has been described by Teall.

page 76 note 1 Since writing the above description, I find that Mr. Teall has recently examined and described some specimens of basalt from Possession Island brought back by Captain Jenssen. Sections kindly shown to me by Mr. Teall present precisely the same characters as those described above.

page 81 note 1 In the Museum is exhibited a large block of gueiss dredged from diatom-ooze, in lat. 53°55' S. and long. 108° 35' E., about 600 miles N.E. of Wilkes Termination Land. According to Sir Jobn Murray (Proc. Roy. Soc. 1898, LXII. pp. 424--51), the dredgings of the Challenger brought up, besides gneiss and granite, also mica. schists, diorites, quartzites, sandstones, limestones and shales.

page 82 note 1 British Petrography, P1. XIX, XX, pp. 197-200.

page 86 note 1 Proc. Roy. Soc. 1898, LXII, pp. 424-51, and Proc. Roy. Soc. Edinb. 1898, XXII. p. 66.

page 86 note 2 Described by Teall (Proc. Roy. Soc. Edinb. XXII. (1898), p. 58).

page 87 note 1 Quart. Journ. Geol. Soc. LIII, (1897), p. 487.

page 87 note 2 Am. Journ. Sci. XXXVII. (1889). p. 441,

page 89 note 1 Ghallenger Reports. VII. petrography of Oceanic Islands, t). 116,