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The Base and Top of the Coral-rock in Barbados

Published online by Cambridge University Press:  01 May 2009

C. T. Trechmann
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Extract

1. The coral-rock commences nearly everywhere with a basal bed of varying thickness containing a fauna of pre-Pleistocene aspect among which the genus Haliotis (absent from these coasts at the present day), Pleurotomaria, Meiocardia, etc., are noticeable. This faunule may have lived at a depth of 700–1,000 feet.

2. The supposition that the southerly anticlines are a later uplift than the main portion of Barbados is supported by the absence of ravines, and the presence of post-coral-rock beds which occur as coastal veneers at low altitudes, and in greater thickness in the south-east corner near Whitehaven.

3. The south-east part of the island from Consett Point to Ragged Point has probably extended further seawards in comparatively recent times ; the series of converging faults and dislocations in the cliff sections suggest that the thrusts from the west or south-west may have been resisted by this part of the island.

4. The relative claims of fault-scarping or marine erosion in production of the rising terraces is discussed ; and new information regarding the thickness of the coral-rock at sea-level from a boring is detailed.

5. The finding of a faunule with Pliocene or possibly Miocene affinities at the base of the coral-rock puts the Oceanic series further back, into the Miocene.

Type
Original Articles
Information
Geological Magazine , Volume 74 , Issue 8 , August 1937 , pp. 337 - 359
Copyright
Copyright © Cambridge University Press 1937

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References

page 337 note 1 Agricultural Journal, Dept. of Science and Agriculture, Barbados, 3, No. 3, 07, 1934, 34.Google Scholar

page 338 note 1 “The Uplift of Barbados,” Geol. Mag., LXX, 1933, 46.Google Scholar

page 348 note 1 Lehner, M. E., “Introd. à la géologie de Trinidad,” Annales de l' Office des Combustibles lignites, No. 4, Paris, 1935, 695.Google Scholar

page 348 note 2 Quart. Journ. Geol. Soc., xlv, 1889, 641.Google Scholar

page 351 note 1 Geol. Mag. , LXXII, 1935, 541, pl. xxi, fig. 3.Google Scholar

page 352 note 1 Bull. Amer. Pal., No. 39, ix, 1922, 161, pl. 15, fig. 12.Google Scholar

page 352 note 2 “Contrib. to Geol. and Pal. of West Indies,” Carnegie Inst. of Washington, p. 135, pl. 13, fig. 5.Google Scholar

page 353 note 1 Bull. Amer. Pal., No. 49, 13, 1927, 25, pls. 14–15.Google Scholar

page 353 note 2 Tert. Fauna Florida, iii, part 4, 1898, 707, pl. 34, fig. 5.Google Scholar

page 354 note 1 Bull. U.S. Nat. Mus., No. 37, 1889, p. 54, pl. 40, fig. 7.Google Scholar

page 354 note 2 New Brachiopods, Smithsonian Miscell. Coll., 91. No. 10, 1934, 1, pi. i, figs. 1–8.Google Scholar

page 354 note 3 Geol. Mag., LXVII, 1930, 213, pl. 12, figs. 1 and 2.Google Scholar

page 356 note 1 The only previous reference to these beds I can find is Jukes-Browne and Harrison, Quart. Journ. Geol. Soc., xlvii, 1891, 217, where small corals and land shells are mentioned from Culpepper Island.Google Scholar