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

Kan, Haidong; Hori, Nobuyuki; Nakashima, Yasuhiro; Ichikawa, Kazuhiko

doi:10.1007/bf00367229

Cited by 57 publications

(23 citation statements)

References 26 publications

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“…In any event, the sequence of wall construction and subsequent fill is commonly regarded as the norm where antecedent platforms or slopes are moderately wide. Minna Island in the Central Ryuku Group provides a model (Kan et al 1995) which contrasts with the situation where the platform or slope are narrow and there is little or no energy gradient. For example, on China reef, Okierabu Island, accretion on hard substrates proceeds almost entirely by bioconstruction (Kan et al 1995).…”

Section: Bioconstruction and Reef Accumulationmentioning

confidence: 96%

“…Minna Island in the Central Ryuku Group provides a model (Kan et al 1995) which contrasts with the situation where the platform or slope are narrow and there is little or no energy gradient. For example, on China reef, Okierabu Island, accretion on hard substrates proceeds almost entirely by bioconstruction (Kan et al 1995). Similar energy-related partitioning of structure is recorded by Macintyre et al (1982) in the Caribbean, by Davies and Hopley (1983), and , on the Great Barrier Reef, and by Montaggioni (1988), Cabioch et al (1995), Camoin et al (1997), and elsewhere in the Indo-Pacific.…”

Section: Bioconstruction and Reef Accumulationmentioning

confidence: 96%

“…Reefs have been referred to end members of a spectrum that excludes the catastrophic hurricanes of Grand Cayman . "High" hydrodynamic energy structures, such as those in Réunion (Montaggioni 1977;Camoin et al 1997), the NE coast of New Caledonia (Cabioch 1988;Cabioch et al 1995) and reefs of the Okierabu islands (Kan et al 1995), are dominated by constructional frame. In contrast, in "moderate to low" energy areas, such as Mauritius (Montaggioni 1988;Camoin et al 1997;, Hawaii (Easton and Olson 1976;Montaggioni 1988) and the SW coast of New Caledonia (Cabioch et al 1995), characteristic accumulations are gravelly or sandy.…”

Section: Bioconstruction and Reef Accumulationmentioning

confidence: 99%

“…Until recently, models describing the upward growth and lateral coalescence of framework pinnacles and the establishment of a wall-and-fill relationship (Kan et al 1995) have been largely theoretical. However, Shinn et al (1977Shinn et al ( , 1981 were able to document the upwards transition of a reef-front spur, whereas Kan et al (1997) described the planimetric growth of a reef spur in which the core formed as an isolated reef front patch at approximately 3 m depth some 1200 years BP, subsequently growing both seawards and reefwards to form a spur by 600-700 years BP.…”

Section: Bioconstruction and Reef Accumulationmentioning

confidence: 99%

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Origins and development of Holocene coral reefs: a revisited model based on reef boreholes in the Seychelles, Indian Ocean

Braithwaite¹,

Montaggioni

Camoin

et al. 2000

International Journal of Earth Sciences

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Until recently, concepts of coral reef growth and accumulation have been predominantly based on a Darwinian model. In this, the upwards and outwards growth of a reef core (a coral framework) takes place over a foreslope consisting of reef talus, with the simultaneous filling of the back-reef lagoon by reef-derived debris. The principal adaptations of this pattern relate to the influence of relative changes in sea level and commonly ignore oceanographic factors such as storm frequency and severity. Boreholes through the outer edge of a fringing reef in the Seychelles, western Indian Ocean, reveal a record of Holocene sediment accumulation first established approximately 8 ka ago. Faunal and floral associations show that growth of this body began in relatively deep water but that this shallowed to ~5 m within 1 ka. Subsequent accumulation was of "keep-up" style but, as the rate of sea-level rise slowed, shoaling became more frequent and aggradation was limited by reducing accommodation space. Constructional facies are characterised either by massive corals, including Leptastrea, Porites and faviids, or by branching corals, typically Acropora of the danairobusta group. Coral surfaces may be encrusted by red algae, foraminifera and vermetids, and are commonly bored by filamentous algae, clionids and molluscs. However, detrital facies are volumetrically dominant, and the paucity of a constructional framework requires a re-evaluation of models of reef accretion. New models relate the geometry of accretion to the interplay between extreme storm events and fairweather hydrodynamic conditions. These suggest that a contiguous framework forms in areas of moderate fairweather energy without extreme storm events. Severe storms destroy the continuity of reef structures and generate increasing volumes of coarse detritus. Low storm severity, coupled with low fairweather hydrodynamic energy, may promote the accumulation of fine-grained reef-derived sediments that inhibit framework growth. While ecology reflects year-by-year sea conditions, lithology and structure are controlled by exceptional storms, with the effects of changing sea level superimposed.

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Section: Bioconstruction and Reef Accumulationmentioning

confidence: 96%

Section: Bioconstruction and Reef Accumulationmentioning

confidence: 96%

Section: Bioconstruction and Reef Accumulationmentioning

confidence: 99%

Section: Bioconstruction and Reef Accumulationmentioning

confidence: 99%

See 2 more Smart Citations

Origins and development of Holocene coral reefs: a revisited model based on reef boreholes in the Seychelles, Indian Ocean

Braithwaite¹,

Montaggioni

Camoin

et al. 2000

International Journal of Earth Sciences

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“…Indeed, throughout this province, sea level stabilized at its present position 6,000 years ago (Pirazzoli 1991). Reef tracts have prograded seaward at various rates: 2±5 m ka ±1 in fringing reefs in the Ryukyu islands (Kan et al 1995), 17±80 m ka ±1 in fringing reefs from Thailand (Tudhope and Scoffin 1994; Scoffin and Le Tissier 1998), 9±124 m ka ±1 on inner shelf reefs, Great Barrier Reef of Australia (Johnson and Risk 1987;Fig. 7).…”

Section: Features Linked To Arrested Accommodationmentioning

confidence: 98%

Growth history of shallow-water carbonates: control of accommodation on ecological and depositional processes.

Massé¹,

Montaggioni²

2000

Int J Earth Sci

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We explore the role played on the growth of shallow-water carbonates by changes in accommodation using case studies from Late Quaternary to modern carbonate environments, i.e. coral reefs and carbonate platforms and ramps. Accommodation appears not to influence either primary productivity or community structure (K-versus r-strategists) as these are directly governed by nutrient supply; but it does control submarine depositional profiles and their stratigraphic expression (i.e. volumetric sedimentary partitioning). The growth of communities from incipient to senescent stages is dictated by relative rates of sea-level variations, although ambient temperatures and trophic conditions may modify the community response. A decrease or stabilization of accommodation favours lateral migration, thus generating ecological and sedimentary innovations. Organic carbon production tends to be positively correlated to that of carbonate, both declining as accommodation decreases. Shallow water carbonates develop as a result of the interplay of factors, including the types and rates of biological and physical processes. Applying depositional models of Recent shallow-water carbonates to the interpretation of ancient carbonate platforms first needs to acknowledge the respective role of the two contrasting phases that operated during the post-glacial sea-level rise (an earlier, fast-rising phase versus a later, slowly rising to stabilizing phase); the period of relative sea-level stabilization (i.e. the past 6,000 years) appears a relevant reference for stillstand-related carbonate systems. Furthermore, the oligotrophic nutrient model, a dominant feature of the modern shallow-water tropics, can be used as an analogue in reconstructing carbonate growth histories during greenhouse episodes of Earth history.

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Environmental and Tectonic Influence on Growth and Internal Structure of a Fringing Reef at Tasmaloum (SW Espiritu Santo, New Hebrides Island Arc, SW Pacific)

Cabioch

Taylor

Récy

et al. 1998

Reefs and Carbonate Platforms in the Pacific and Indian Oceans

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Subduction of the Australian Plate has caused rapid uplift of the central New Hebrides island arc (1 5"S, SW Pacific). The d'Entrecasteaux ridge system, a prominent bathymetric feature on the downgoing plate, is underthrusting the central part of the New Hebrides arc. The coastlines of most islands are characterized by emerged Holocene coral reef terraces. A maximum uplift rate of 6 mm y r ' occurs along the south-west coast of Espiritu Santo, near the plate boundary.To investigate the Late Quaternary neotectonic and environmental evolution of the uplifted fringing reefs, we drilled the emerged Holocene reef at Tasmaloum (SW Espiritu Santo) to depths as great as 40-45 m. Coral samples from various levels were dated by 230Th and I4C, as described elsewhere, and the intemal structure of the reefs was studied.Preliminary palaeoecological and sedimentological data indicate the following. First, the coral reef colonized a substrate and began to grow by 24 ka on weakly indurated calcareous sand beds, which probably formed during the Late Pleistocene and are possibly as old as 30 ka or more. These sand levels could represent the deep fore-reef area of an older reef, at present behind the uplifted Holocene terraces. Second, the biofacies and coral ages from the reef sequence, which is continuous from the last glacial maximum (LGM), provide a view of the internal structure: between 24 and 12-10 ka, coral levels, composed mainly ofkroporu gr. hyacinthus and gr. cytlzereu (accompanied by a few Gulaxeu gr. fmciculuris), constitute medium-to high-energy assemblages, reflecting relatively deeper and more protected environments. However, at a few levels, acroporid build-ups of Acroporu gr. dunui/robustu indicate high-energy environment altemation. Between 12-10 ka and the present, assemblages of acroporids (Acroporu gr. dunui/robustu), scarce poritids, numerous encrusting coralline algae, vermetid gastropods and encrusting foraminiferids indicate high-energy environments, probably corresponding to the upper part of the exposed reef slopes. This biofacies succession indicates changes in wave energy, related to fluctuations in local bathymetry controlled by the net effect of variable rates of sea-level rise, reef growth and tectonic uplift. After 6 ka, the replacement of coral, coralline algal and stromatolite assemblages by coral and coralline algal frameworks implies the establishment of a new hydrological and oceanographic regime. The biofacies and age structure of the reef show that the uplift rate has vaned sinze24-ka.

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

Cited by 57 publications

References 26 publications

Origins and development of Holocene coral reefs: a revisited model based on reef boreholes in the Seychelles, Indian Ocean

Origins and development of Holocene coral reefs: a revisited model based on reef boreholes in the Seychelles, Indian Ocean

Growth history of shallow-water carbonates: control of accommodation on ecological and depositional processes.

Environmental and Tectonic Influence on Growth and Internal Structure of a Fringing Reef at Tasmaloum (SW Espiritu Santo, New Hebrides Island Arc, SW Pacific)

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