Skip to main content
×
Home
    • Aa
    • Aa

Sea Level Events and Pleistocene Coral Ages in the Northern Bahamas

  • A. Conrad Neumann (a1) and Willard S. Moore (a2)
Abstract

Emergent Pleistocene sea level indicators in the northern Bahamas include: a bioerosional notch at +5.3 to 5.9 m; sea caves, notches, and marine terraces at about +4.3 m; and lithified coral rubble and reef deposits between 0 and 3 m. Thorium 230 dates of the fossil corals, which were deposited as these features were being produced, span the age range from 100 to 145 thousand years BP with a majority falling between 115 and 130 thousand years BP. The notch at about +5.6 m is interpreted to be the product of a sea level stand 125 thousand years BP, while the features at +4.3 m are believed to be formed sometime later as sea level fell from the higher position. Part of the age span is inherent in the dating technique and possible sample alteration. Another cause of the spread may be mixing of corals of different ages into a single deposit.

Copyright
Linked references
Hide All

This list contains references from the content that can be linked to their source. For a full set of references and notes please see the PDF or HTML where available.

A.L. Bloom , W.S. Chappell , R.K. Matthews , K.J. Mesolella , (1974). Quaternary sea level fluctuations on a tectonic coast: New 230Th/234U dates from the Huon Peninsula, New Guinea. Quaternary Research 4, 185 205.

W.S. Broecker , (1963). A preliminary evaluation of uranium series inequilibrium as a tool for absolute age measurement on marine carbonates. Journal of Geophysical Research 68, 2817 2834.

W.S. Broecker , D.L. Thurber , (1965). Uranium-series dating of corals and oolites from Bahaman and Florida Key limestones. Science 149, 58 60.

W.S. Broecker , J. van Donk , (1970). Insolation changes, ice volumes, and the 0–18 record in deep-sea cores. Reviews, Geophysics and Space Physics 8, 169 198.

J.M.A. Chappell , (1974). Upper mantle rheology in a tectonic region: evidence from New Guinea. Journal of Geophysical Research 79, 390 398.

C.E. Emiliani , (1969). Interglacial high sea levels and the control of Greenland ice by the precession of the equinoxes. Science 166, 1503 1504.

C.E. Emiliani , E. Rona , (1969). Caribbean cores P6304-8 and P6304-9: new analysis of absolute chronology. A reply. Science 166, 1551 1552.

J.H. Hoyt , J.R. Hails , (1967). Pleistocene shoreline sediments in coastal Georgia: deposition and modification. Science 155, 1541 1543.

K. Konishi , S.O. Schlanger , A. Omura , (1970). Neotectonic rates in the central Ryukyu Islands derived from 230Th coral ages. Marine Geology 9, 225 240.

T.L. Ku , M.A. Kimmel , W.H. Easton , T.J. O'Neil , (1974). Eustatic sea level 120,000 years ago on Oahu, Hawaii. Science 183, 959 962.

L.S. Land , F.T. Mackenzie , S.J. Gould , (1967). The Pleistocene history of Bermuda. Geological Society of America Bulletin 78, 993 1006.

W.S. Moore , B.L.K. Somayajulu , (1974). Age determinations of fossil corals using 230Th/234 and 230Th/227. Journal of Geophysical Research 79, 5065 5068.

A.C. Neumann , (1966). Observations on coastal erosion in Bermuda and measurements of the boring rate of the sponge, Cliona lampa. Limnology and Oceanography 11, 92 108.

N.D. Newell , (1965). Warm interstadial interval in Wisconsin Stage of the Pleistocene. Science 148, 1488.

J.K. Osmond , J.R. Carpenter , H.L. Windom , (1965). 230Th/234 age of the Pleistocene corals and oolites of Florida. Journal of Geophysical Research 70, 1843 1847.

D.L. Thurber , W.S. Broecker , R.L. Blanchard , H.A. Potratz , (1965). Uranium series ages of Pacific atoll coral. Science 149, 55 58.

H.H. Veeh , J.M.A. Chappell , (1970). Astronomical theory of climatic change: support from New Guinea. Science 167, 862.

Recommend this journal

Email your librarian or administrator to recommend adding this journal to your organisation's collection.

Quaternary Research
  • ISSN: 0033-5894
  • EISSN: 1096-0287
  • URL: /core/journals/quaternary-research
Please enter your name
Please enter a valid email address
Who would you like to send this to? *
×

Metrics

Abstract views

Total abstract views: 28 *
Loading metrics...

* Views captured on Cambridge Core between 20th January 2017 - 28th April 2017. This data will be updated every 24 hours.