The evolution of narrow reef flats at high-latitude in the Ryukyu Islands

Hironobu Kan, N. Hori, Y. Nakashima, K. Ichikawa

Research output: Contribution to journalArticle

55 Citations (Scopus)

Abstract

This paper describes a Holocene reef structure observed from a cutting in a modern reef on Okierabu Island in the Ryukyu Islands and proposes a process for the initiation and formation of narrow, lagoon-less fringing reef flats. Reef formation began around 7050 yBP at 11 m below present sea level. The reef was constructed by a uniform facies of in situ tabular corals and kept up with sea level rise. Geomorphological zonation has been restricted by the lack of a cross-reef energy gradient during reef formation. Sediment trapped by limestone caves abutting the shore has contributed to this characteristic. The slope break around-10 m and steep scarp of the shore create a narrow substrate that is responsible for the development of an equally narrow reef flat.

Original languageEnglish
Pages (from-to)123-130
Number of pages8
JournalCoral Reefs
Volume14
Issue number3
DOIs
Publication statusPublished - Sep 1 1995
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Aquatic Science

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