If you need an accessible version of this item please contact JSTOR User Support

Geomorphic Evolution of a Holocene Beach-Ridge Complex, LeFevre Peninsula, South Australia

Greg Bowman and Nick Harvey
Journal of Coastal Research
Vol. 2, No. 3 (Summer, 1986), pp. 345-362
Stable URL: http://www.jstor.org/stable/4297197
Page Count: 18
  • Download PDF
  • Cite this Item

You are not currently logged in.

Access your personal account or get JSTOR access through your library or other institution:

login

Log in to your personal account or through your institution.

If you need an accessible version of this item please contact JSTOR User Support
Geomorphic Evolution of a Holocene Beach-Ridge Complex, LeFevre Peninsula, South Australia
Preview not available

Abstract

Intensive drilling and radiocarbon dating are used to interpret the Holocene evolution of LeFevre Peninsula, located on the eastern shore of Gulf St Vincent, South Australia. This beach-ridge complex is in a low to medium energy environment where longshore sediment drift is dominant Sedimentation commenced at the end of the Postglacial Marine Transgression around 7,500 calendar yrs BP, indicating a similar sea level history to east Australian coastal barriers. A major sediment pulse between 7,500 and 5,500 yrs BP produced a rapid northward progradation of the regressive lithofacies. After 5,500 yrs a reduced rate of sediment supply and a change in coastline orientation contributed to spit recurvature and a flared beach- ridge pattern. The longshore spit progradation and shore parallel backbarrier facies of LeFevre Peninsula contrast with the shore-normal development of east Australian barriers which tend to block bedrock embayments and constrain backbarrier sedimentation.

Page Thumbnails

  • Thumbnail: Page 
[345]
    [345]
  • Thumbnail: Page 
346
    346
  • Thumbnail: Page 
347
    347
  • Thumbnail: Page 
348
    348
  • Thumbnail: Page 
349
    349
  • Thumbnail: Page 
350
    350
  • Thumbnail: Page 
351
    351
  • Thumbnail: Page 
352
    352
  • Thumbnail: Page 
353
    353
  • Thumbnail: Page 
354
    354
  • Thumbnail: Page 
355
    355
  • Thumbnail: Page 
356
    356
  • Thumbnail: Page 
357
    357
  • Thumbnail: Page 
358
    358
  • Thumbnail: Page 
359
    359
  • Thumbnail: Page 
360
    360
  • Thumbnail: Page 
361
    361
  • Thumbnail: Page 
362
    362