Submerged notches and doline sediments as evidence for Holocene subsidence

Evelpidou, Νiki; Pirazzoli, Paolo A.; Saliège, Jean-François; Vassilopoulos, Andreas

doi:10.1016/j.csr.2011.05.002

Cited by 47 publications

(40 citation statements)

References 18 publications

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“…Evelpidou et al. () have proposed that if the height of the notch exceeded the local tidal range, relative sea level rise during the period of notch development occurred gradually, and this is in accord with our observations.…”

Section: Resultssupporting

confidence: 93%

“…Depths of submerged tidal notches along the Yeşilova coasts are at between −44 and −52 cm bpsl, indicating subsidence of about 0.5 m and in agreement with estimates presented in Pirazzoli () and Evelpidou et al. () (Table ). A present day tidal notch trace has not been observed along the limestone coasts of the Yeşilova Gulf.…”

Section: Discussionsupporting

confidence: 91%

“…Pirazzoli (, ) and Evelpidou et al. () reported that the rate of intertidal bioerosion ranges between 0.2 and 1 mm/yr in the Mediterranean. They use these limits to estimate the duration of the periods of relative sea level stability.…”

Section: Resultsmentioning

confidence: 99%

“…Pirazzoli (, ) and Evelpidou et al. () suggested that submerged tidal notches are an important indicator of former periods of relative sea level stability and can indicate both rapid subsidence or a rapid sea level rise. They surveyed different Mediterranean coasts and observed submerged notches at about 0.5 m bpsl, proposing that relatively recent co‐seismic subsidence amounted to about half a meter.…”

Section: Introductionmentioning

confidence: 99%

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Late Pleistocene and Holocene Sea Level Changes in the Hisarönü Gulf, Southeast Aegean Sea

Kızıldağ

Özdas²,

Uluğ³

2012

Geoarchaeology

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Fluctuations in relative sea level, tectonic movement, and sedimentation during the late Pleistocene to Holocene in the Hisarönü Gulf (SE Aegean Sea) and surrounding area were investigated with a high‐resolution geophysical survey and underwater archaeological observations. The Hisarönü Gulf has been affected by vertical tectonic movements and rising sea level following the last glacial period (20,000 yr B.P.). High‐resolution seismic data were interpreted to reveal the structure of the late Pleistocene to Holocene deposits and determine the location of the paleoshoreline. In order to describe the relative rise of sea level, principles of sequence stratigraphy were used for the late Pleistocene to Holocene transition, and submerged archaeological remains and bioerosional indicators were used for the late Holocene period. A comparison of archaeological observations in the study area with the known regional sea level curve indicates that the relative rise in sea level for the late Holocene is, for the most part, due to the tectonic subsidence of the coastal plain. © 2012 Wiley Periodicals, Inc.

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Section: Resultssupporting

confidence: 93%

Section: Discussionsupporting

confidence: 91%

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Late Pleistocene and Holocene Sea Level Changes in the Hisarönü Gulf, Southeast Aegean Sea

Kızıldağ

Özdas²,

Uluğ³

2012

Geoarchaeology

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“…In addition to archaeological data, biological and geomorphological indicators, such as tidal notches, benches, beachrocks, etc., are also commonly used to estimate relative sea‐level changes (Pirazzoli, , ; Laborel & Laborel‐Deguen, ; Morhange, Laborel, & Hesnard, ; Morhange et al ; Antonioli et al., ; Evelpidou et al., ). For example, Fouache et al () observed a fossil notch associated with an ancient quarry situated at 1.5 m below present sea level in Andriake, which corresponds to sea‐level stabilization during the Roman Period.…”

Section: Discussionmentioning

confidence: 99%

Archaeological and Geophysical Investigation of Submerged Coastal Structures in Kekova, Southern Coast of Turkey

Özdaş

Kızıldağ

2013

Geoarchaeology

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We conducted archaeological and geophysical surveys in order to investigate the submergence of ancient constructions along the coast at Kekova Island in southern Turkey. Submerged archaeological remains were measured with respect to present sea level, and geological features that may have caused subsidence were determined by seismic investigation. We estimated relative sea‐level change taking into account presumed original elevation of constructions associated with the harbor at the time of occupation and compared our results with eustatic–isostatic sea‐level studies in the Mediterranean. Ceramics found along the submerged quay of Kekova Island provided evidence for the time of last use of the harbor structures and suggest that submergence began during the early Byzantine period. Considering relative sea‐level changes, eustatic–isostatic effects, and the period of submergence, we estimate a rate of coastal tectonic subsidence of at least 1.6 mm/yr over the last 1400 years.

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Numerical modeling of tidal notch sequences on rocky coasts of the Mediterranean Basin

et al. 2017

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Tidal notches have had the potential to form at sea level from ~6.5 kyr B.P. in the Mediterranean Basin and preserve a symmetrical shape comparable to a quadric polynomial. Continuous erosion, predominantly by biological agents, affects a limestone cliff face from low‐ to high‐tide level at <1 mm/yr. Statically determined, the roots of a quadric polynomial are defined by the tidal range representing the limits of effective erosion. However, gradual variations of eustatic sea level rise (slow) and coseismic uplift/subsidence (fast) in tectonically active regions contribute to vertical shifts in the erosional base at coastlines. As a consequence, the cliff morphology gets modified through time resulting in widening, deepening, and separation of notches and possible overprinting of older features. In order to investigate successive modifications of coastal cliff morphology, we developed a numerical model that considers the erosion rate, the erosion zone relative to sea level, the regional sea level curve, and tectonic motion. The results show how slow and rapid sea level changes bias the modern cliff face and highlight that the present‐day notch sequence from top descending to sea level is not inevitably of decreasing age. Furthermore, the initiation of notch formation is not necessarily linked to the date of a certain seismic event. Especially in extensional tectonic settings where coseismic uplift is low and coastal morphological marks are not as distinct, knowledge about coastal evolution is beneficial for paleoseismological research.

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Submerged notches and doline sediments as evidence for Holocene subsidence

Cited by 47 publications

References 18 publications

Late Pleistocene and Holocene Sea Level Changes in the Hisarönü Gulf, Southeast Aegean Sea

Late Pleistocene and Holocene Sea Level Changes in the Hisarönü Gulf, Southeast Aegean Sea

Archaeological and Geophysical Investigation of Submerged Coastal Structures in Kekova, Southern Coast of Turkey

Numerical modeling of tidal notch sequences on rocky coasts of the Mediterranean Basin

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