Geomorphology of the Uplifted Pleistocene Atoll At Henderson Island, Pitcairn Group

Pandolfi, J. M. (1995). Geomorphology of the Uplifted Pleistocene Atoll At Henderson Island, Pitcairn Group. In The Pitcairn Island: biogeography, ecology and prehistory (pp. 63-77) London, United Kingdom: Academic Press. doi:10.1111/j.1095-8312.1995.tb01078.x

Author Pandolfi, J. M.
Title of chapter Geomorphology of the Uplifted Pleistocene Atoll At Henderson Island, Pitcairn Group
Title of book The Pitcairn Island: biogeography, ecology and prehistory
Place of Publication London, United Kingdom
Publisher Academic Press
Publication Year 1995
Sub-type Research book chapter (original research)
DOI 10.1111/j.1095-8312.1995.tb01078.x
Open Access Status Not Open Access
Series Biological Journal of the Linnean Society
ISBN 9780120893454
ISSN 0024-4066
Volume number 56
Start page 63
End page 77
Total pages 15
Language eng
Formatted Abstract/Summary
Henderson Island, in the Pitcairn Group, preserves a Pleistocene atoll physiography with the rim of the raised reef structure, supporting spur and groove topography, enclosing a central lagoon. Excellent preservation of coral reef communities occurs along the ancient atoll rim and within the central lagoon. The previously interpreted depositional nature of the fossil atoll structure is herein corroborated with geomorphologic and stratigraphic evidence from previously un-visited portions of the island. Stratigraphic and lateral facies relationships indicate a physiographic zonation which includes spur and grooves, outer reef flat, lagoon margin, and an interior lagoon with patch reefs. The in situ occurrence and zonation of reef coral communities around the periphery and within the interior of the island appear to reflect the original physiography of the atoll lagoon, with the most pronounced reef development on the SE side of the original atoll. Stratigraphic units which comprise the raised atoll lagoon structure represent different time intervals, so the atoll lagoon structure formed during various sea level fluctuations. The modern atolls of the Pitcairn Group, Oeno and Ducie, provide some comparisons (similarities and differences) with the fossil lagoon on top of Henderson Island.
Keyword Carbonate
Reef Zonation
Coral Reef
Pitcairn Islands
Spur and Groove
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Non-UQ

Document type: Book Chapter
Collection: School of Biological Sciences Publications
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