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  • Modelling the effect of waves, weathering and beach development on shore platform development
  • Cliff ; Coastal dynamics ; Coastal environment ; Erosion ; Mathematical model ; Model ; Shore platform ; Tide ; Wave
  • A mathematical model was used to study shore platform development. In addition to mechanical wave erosion, this model considers the effect of a number of other important factors, including platform downwearing by weathering, the abrasive
  • and protective effects of beach sediment accumulation, and variable cliff height and debris mobility. The primary goal of this study was to examine how these interacting factors influence the development of shore platforms in different environments, rather than
  • to replicate the morphology of platforms after specific periods of time.
  • Lacustrine shore platforms at Lake Waikaremoana, North Island, New Zealand
  • Comparative study ; Erosion rate ; Lacustrine sediment ; Lake ; Lake level ; Model ; New Zealand ; North Island ; Ocean ; Shore platform ; Weathering
  • This paper has 3 objectives. First, to describe the shore platforms at Lake Waikaremoana. Second, to determine whether principles governing oceanic platforms can be applied to a lacustrine setting, and third to present a conceptual model
  • for the development of the shore platforms at Lake Waikaremoana.
  • A Pleistocene origin for shore platforms along the northern Illawara coast, New South Wales
  • Aminostratigraphy ; Australia ; Coastal sedimentation ; Dating ; New South Wales ; Pleistocene ; Quaternary ; Sea level ; Shore platform ; Shoreline ; Thermoluminescence ; Tsunami
  • This paper examines the composition, structure and age of clastic deposits situated behind shore platforms at Austinmer and Coledale on the northern Illawara coast, New South Wales. The results support earlier chronological evidence of a Pleistocene
  • history for shore platforms along the Illawara coast.
  • Defining shore platform boundaries using airborne laser scan data : a preliminary investigation
  • Coastal environment ; Digital elevation model ; Geographical information system ; Methodology ; New Zealand ; Remote sensing ; Shore platform ; South Island
  • As an initial evaluation of the potential of digital elevation models (DEMs) and geographic information systems (GISs) for geomorphic characterization of rocky shorelines, airborne laser scan (ALS) data have been used to characterize shore platforms
  • around Shag Point, southeastern New Zealand. The main challenge involved the delineation of the shore platform area in terms of landward and seaward extents.
  • Dune calcarenite and shore platforms at Cape Otway, Victoria
  • Cape Otway is a bold headland cut in Lower Cretaceous sandstones, bordered by cliffs and shore platforms. It is partly overlain by Pleistocene dune calcarenites and Holocene calcareous dunes resulting from eastward migration of aeolian sand from
  • beach sources on the western shore. Locally, this material has spilled over the eastern shore, where there are sectors of cliff and shore platform cut in Pleistocene dune calcarenite, interrupting the Lower Cretaceous outcrop. It is deduced
  • that the Pleistocene dunes spilled over an old cliffed coastline and on to a shore platform that had emerged as the result of sea level lowering. The present coastal features are thus very close to Pleistocene coastal features (cliffs, shore platforms) developed when
  • Development of shore platforms on Kaikoura Peninsula, South Island, New Zealand. II : the role of subaerial weathering
  • Algae ; Coastal environment ; Coastal erosion ; New Zealand ; Shore platform ; South Island ; Tide
  • The role of subaerial weathering in the development of shore platforms on Kaikoura Peninsula is investigated. Evidence for weathering came from a number of distinctive surface morphologies on platforms : salt crystal growth, water layer weathering
  • , and slaking. Weathering processes on shore platform rely on repeated wetting and drying. It was found that the number of wetting and drying cycles depend not only on the pattern of tidal water levels but also on algae growth and desiccation. It is argued
  • that the development of shore platforms at kaikoura results from subaerial weathering caused by repeated wetting and drying, and not from marine erosion.
  • Shore platform abrasion in a para-periglacial environment, Galicia, northwestern Spain
  • Coastal environment ; Galicia ; Holocene ; Inherited features ; Marine abrasion ; Periglacial features ; Shore platform ; Spain ; Weathering
  • This paper uses surface rock hardness variations to identify present and past abrasional activity on shore platforms in northwestern Spain, and to show how spatial and temporal in abrasion efficacy have resulted from the exhumation and inheritance
  • of ancient platform surfaces from beneath Weichselian deposits.
  • Field observations of infragravity waves and their behaviour on rock shore platforms
  • Cliff ; Coastal dynamics ; Coastal environment ; Coastal erosion ; New Zealand ; North Island ; Sea level ; Shore platform ; Wave
  • Infragravity wave (IGW) transformation was quantified from field measurements on 2 shore platforms on New Zealand's east coast (Oraka and Rothesay Bay). The observed increase in IGW height over the platform during both experiments is attributed
  • in water level at the cliff toe during high tide. Results from this study show the first measurements of IGWs on shore platforms and identify long wave motion a significant process in a morphodynamic understanding of rock coast.
  • to shoaling. The proportional increase in IGW height shows a strong correlation to water level on each platform. The rate of shoaling of long period waves on the shallow, horizontal platforms increased at higher water levels resulting in a super elevation
  • Shore platform morphology on a rapidly uplifting coast, Wellington, New Zealand
  • Coastal environment ; Coastal erosion ; Coastal geomorphology ; Marine abrasion ; New Zealand ; North Island ; Shore platform ; Tectonics ; Vertical movement
  • The coast of Wellington is tectonically active and contains a series of uplifted and contemporary shore platforms that are developed in Triassic Greywacke. The rate of development of these platforms is rapid. The co-seismic uplift means
  • that the rear of the platforms is raised beyond the limits of marine process and has become an area of deposition. Although no direct process measurements were made the highly fractured nature of the bedrock appears to play a major role in platform evolution
  • , with wave processes being easily able to pluck blocks as evidenced by fresh erosion scars and active gravel beaches at the rear of many platforms.
  • Rates of tafoni weathering on uplifted shore platforms in Nojima-Zaki, Boso Peninsula, Japan
  • Many tafoni occur on the faces of marine cliffs on three uplifted shore platforms with different altitudes and with known ages of emergence. The AA. estimate the mean value of the ten largest depths of tafoni, the period of their formation
  • Cliff ; Coastal environment ; Coastal geomorphology ; Coastline ; Geomorphometry ; Remote sensing ; Shore platform ; Slovenia
  • In the paper relations between width of shore platform, height of the coastal cliffs and its inclination are analysed. The study was based on profiles of the Slovenian coast obtained by remote sensing. Results show that the width of shore platform
  • decreases while the cliff height increases. The inclination of coastal cliffs reflects combination of rock resistance and transport intensity of accumulated material. The increasing of cliff inclination corresponds to increase of shore platform width. - (IKR)
  • Tidal wetting and drying on shore platforms : an experimental study of surface expansion and contraction
  • Basalt ; Canada ; Clay rock ; Coastal environment ; Erosion cycle ; Experimentation ; Intertidal zone ; Quebec ; Shore platform ; Tide ; Weathering
  • This paper reports on an experimental investigation of short- and long-term variations in the water content of intertidal rocks of shore platforms in eastern Canada : it is concerned only with alternate wetting and drying although similar
  • Lithological control on the elevation of shore platforms in a microtidal setting
  • This paper describes shore platforms around Shag Point on the eastern coast of South Island, New Zealand. The interesting feature of these platforms is that within a very limited distance their elevation changes from supratidal to low tide level
  • . The local geology of Shag Point is described and a hypothesis put forward to account for the form of the platform at this location.
  • Rates and patterns of erosion on inter-tidal shore platforms, Kaikoura Peninsula, South Island, New Zealand
  • Coastal environment ; Coastal erosion ; Erosion rate ; New Zealand ; Seasonal variation ; Shore platform ; South Island ; Terminology ; Weathering
  • This paper presents measured rates of erosion on shore platforms at Kaikoura Peninsula. Surface lowering rates were measured with a micro-erosion meter and traversing micro-erosion meter. Differences in lowering rates were found between different
  • and salt weathering. This is contrary to views of shore platform development that have favoured marine processes over subaerial weathering.
  • platform types and lithologies. Season is shown statistically to influence erosion rates, with higher rates during summer than winter. The interpretation given to this is that the erosive process is subaerial weathering in the form of wetting and drying
  • Shore erosion by frost: an example from the Scottish Lateglacial in Studies in the Lateglacial of North-West Europe.
  • A well-developed raised shore platform (the Main Rock Platform) is described from Jura, Scarba and NE Islay, Scottish Inner Hebrides. Levelling of 175 platform fragments (approximately 1,000 altitude measurements) indicates that the feature declines
  • that the traditional correlation between the Main Rock Platform and a low Irish (interglacial) platform should be abandoned. Processes of shore platform development in polar areas are also discussed.
  • in altitude to the SW with a regional gradient of 0,13 m/km. It is suggested that the feature was formed by periglacial shore erosion during the Loch Lomond Stadial (Younger Dryas) and is of the same age as the Norwegian Main Line (P12). It is also proposed
  • Development of shore platforms on Kaikoura Peninsula, South Island, New Zealand. Part one : the role of waves
  • Coastal dynamics ; Coastal environment ; Coastal erosion ; Marine hydrology ; New Zealand ; Shore platform ; South Island ; Wave
  • The role of waves in shore platform development has been investigated on Kaikoura Peninsula by direct measurement of waves in deep water and on platforms at high tide. This showed that the deepwater wave environment off the Kaikoura Peninsula
  • is very energetic, but the amount of energy delivered to platforms is very low. An analysis of the role of breaking waves revealed that these are ineffective as an erosional agent because the depth of water offshore causes breaking before waves arrive
  • on platform surfaces.
  • Shore platform development around Lord Howe Island, southwest Pacific
  • Bathymetry ; Coastal environment ; Coastal erosion ; Conceptual model ; Holocene ; Island ; Lithology ; Pacific Region ; Sea level ; Shore platform ; South-West Pacific Ocean ; Submarine geomorphology
  • This paper describes the morphology of near-horizontal basalt and calcarenite shore platforms around Lord Howe Island as well as the lithological and process environment in which they occur. Correlations indicate that the variability in platform
  • elevation and width is attributable to variability in key parameters of erosion, such as rock resistance and shoreline water depth. Most platforms around the island appear to have developed over the Holocene and a conceptual model is proposed to account
  • for the varied morphology of platforms that have developed over this period.
  • Shore platform morphology and the tidal duration factor
  • Limpet erosion of chalk shore platforms in southeast England
  • Biogenic process ; Carbonate rock ; Chalk ; Coastal environment ; Coastal erosion ; England ; Intertidal zone ; Shore platform ; South-East England ; United Kingdom
  • of the extent to which limpets contribute directly to the erosion of the Sussex chalk platforms.
  • The development of subhorizontal shore platforms by waves and weathering in microtidal environments
  • Coastal environment ; Coastal erosion ; Intertidal zone ; Model ; Shore platform ; Wave ; Weathering
  • A mathematical wave and weathering model was used to study the formation of subhorizontal platforms in microtidal environments. Backwearing (horizontal erosion) rates by wave erosion were calculated for different tidal levels using basic wave