Post-Roman sea-level changes on Pag Island (Adriatic Sea): Dating Croatia's “enigmatic” coastal notch?

Marriner, Nick; Morhange, Christophe; Faivre, Sanja; Flaux, Clément; Vacchi, Matteo; Miko, Slobodan; Dumas, Vincent; Boetto, Giulia; Rossi, Irena Radić

doi:10.1016/j.geomorph.2014.06.002

Cited by 47 publications

(24 citation statements)

References 67 publications

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“…(), these notches document at least two coseismic uplifts for the central and western parts of the island, the first one between the 8th and 4th century B.C., the second one at a later date, so far undated. Similar findings of submerged notches are known from the Croatian coast (Faivre et al., ; Marriner et al., ). Mastronuzzi et al.…”

Section: Physical and Cultural Settingsupporting

confidence: 86%

“…As already stated by Pirazzoli et al (1994), these notches document at least two coseismic uplifts for the central and western parts of the island, the first one between the 8th and 4th century B.C., the second one at a later date, so far undated. Similar findings of submerged notches are known from the Croatian coast (Faivre et al, 2011;Marriner et al, 2014). Mastronuzzi et al (2014) even provided geomorphological and sedimentological evidence for a series of tectonic events on Corfu that may be correlated with tsunami impacts reported for comparable time periods from surrounding regions such as Adriatic Italy (Mastronuzzi & Sansó, 2004;Maramai et al, 2007) and Sicily (Barbano, Pirrotta, & Gerardi, 2010;De Martini et al, 2012;Smedile et al, 2011).…”

Section: Physical and Cultural Settingsupporting

confidence: 75%

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Tracing the Alkinoos Harbor of ancient Kerkyra, Greece, and reconstructing its paleotsunami history

et al. 2017

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In this study, the Alkinoos Harbor of ancient Corfu was investigated by means of geomorphological and sedimentological methods in order to reconstruct the ancient harbor's construction, its period of use and spatial extent, and local paleoenvironmental changes. We present sedimentological evidence for the Alkinoos Harbor that shows distinct signs of dredging activities. Although the harbor must have been in use from the Archaic period onwards, a set of paleoenvironmental proxies based on vibracoring, geophysical prospection, electrical conductivity logging, microfaunal studies, and geochemical analyses revealed typical sediments of a closed, protected Roman harbor that was in use between the 1st and 6th century A.D. In addition, sedimentological and microfaunal evidence allowed us to differentiate between different parts of the Roman harbor. In contrast, the pre-Roman harbor and its shipsheds were built on a sandy seashore. Our data revealed two distinct stratigraphic disruptions related to tsunamigenic impact. These paleotsunamis were

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Section: Physical and Cultural Settingsupporting

confidence: 86%

Section: Physical and Cultural Settingsupporting

confidence: 75%

Tracing the Alkinoos Harbor of ancient Kerkyra, Greece, and reconstructing its paleotsunami history

et al. 2017

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“…At more local scales, particularly in the northern Adriatic, geological evidence from geomorphological, sedimentological and archeological sea-level indicators have been utilized to illustrate the importance of differential tectonic movements and local processes (e.g. sediment compaction) affecting late Holocene RSL histories (e.g., Pirazzoli, 2005;Antonioli et al, 2009Antonioli et al, , 2011Marriner et al, 2014;Suri c et al, 2014;Benjamin et al, 2017;Fontana et al, 2017). Furthermore, understanding RSL changes from the late Holocene to the modern period have been restricted by the temporal offset between geological and tide-gauge RSL records (Vacchi et al, 2016), which record large inter-annual and inter-decadal variability (Tsimplis et al, 2012).…”

Section: Discussionmentioning

confidence: 99%

Tectonic influences on late Holocene relative sea levels from the central-eastern Adriatic coast of Croatia

Shaw

Plater

Kirby

et al. 2018

Quaternary Science Reviews

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Differential tectonic activity is a key factor responsible for variable relative sea-level (RSL) changes during the late Holocene in the Adriatic. Here, we compare reconstructions of RSL from the central-eastern Adriatic coast of Croatia with ICE-7G_NA (VM7) glacial-isostatic model RSL predictions to assess underlying driving mechanisms of RSL change during the past~2700 years. Local standardized published sea-level index points (n ¼ 23) were combined with a new salt-marsh RSL reconstruction and tide-gauge measurements. We enumerated fossil foraminifera from a short salt-marsh sediment core constrained vertically by modern foraminiferal distributions, and temporally by radiometric analyses providing subcentury resolution within a Bayesian age-depth framework. We modelled changes in RSL using an Errors-In-Variables Integrated Gaussian Process (EIV-IGP) model with full consideration of the available uncertainty. Previously established index points show RSL rising from À1.48 m at 715 BCE to À1.05 m by 100 CE at 0.52 mm/yr (À0.82-1.87 mm/yr). Between 500 and 1000 CE RSL was À0.7 m below present rising to À0.25 m at 1700 CE. RSL rise decreased to a minimum rate of 0.13 mm/yr (À0.37-0.64 mm/yr) at~1450 CE. The salt-marsh reconstruction shows RSL rose~0.28 m since the early 18th century at an average rate of 0.95 mm/yr. Magnitudes and rates of RSL change during the twentieth century are concurrent with long-term tide-gauge measurements, with a rise of~1.1 mm/yr. Predictions of RSL from the ICE-7G_NA (VM7) glacial-isostatic model (À0.25 m at 715 BCE) are consistently higher than the reconstruction (À1.48 m at 715 BCE) during the Late Holocene suggesting a subsidence rate of 0.45 ± 0.6 mm/yr. The new salt-marsh reconstruction and regional index points coupled with glacial-isostatic and statistical models estimate the magnitude and rate of RSL change and subsidence caused by the Adriatic tectonic framework.

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“…The indicative range decreases from 0 to − 1 m msl for those samples found in semi-enclosed lagoon facies (i.e. lower diversity in the micro and meiofaunal assemblages typical of brackish estuarine and, in minor terms, freshwater environment, Marriner et al, 2014a;Vacchi et al, 2016Vacchi et al, , 2017. Modern water depth of this type of brackish lagoons nearby the coring sites (such as Mistras lagoon, Di Rita and Melis, 2013) does not exceed 0.5 m being coherent with the proposed indicative range.…”

Section: Relative Sea-level Reconstructionmentioning

confidence: 93%

Mid to late Holocene environmental changes along the coast of western Sardinia (Mediterranean Sea)

Melis

Depalmas

Rita

et al. 2017

Global and Planetary Change

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Multiproxy analysis composed of biostratigraphy and pollen analysis allowed reconstructing the palaeoecological and palaeoenvironmental evolution of the Tirso river coastal plain in Sardinia (NW Mediterranean) in the last 6 millennia. We demonstrated that interplay between littoral and fluvial processes have significantly controlled the environmental evolution of the area and have played a key role in the pattern of historical and prehistorical settlements of this wide portion of western Sardinian coastline. At the end of Neolithic period (ca. 6.0 to 5.5 cal. ka BP) the area close to the shoreline was most likely characterized by large coastal lagoons intermittently connected to the open sea. Such saltwater influence is corroborated by faunal and pollen assemblages found in the landward portion of the Tirso coastal plain up to 2 km inland from the modern shoreline. Our data robustly document the end of the transgressive trend at ca. 5.5 cal. ka BP, and a dominant fluvial sedimentation since Final Neolithic period. At this time, a progradational trend started, causing the seaward migration of shoreline and, consequently, of the barrier-lagoon system. The major landscape modification tracked along the last 6 millennia may also explain the low density of historical and prehistorical remains in the Tirso coastal plain, especially if compared to the nearby rocky area of Sinis Peninsula densely inhabited since the Neolithic. Our data further provide new insights into the Relative Sea Level (RSL) evolution in this sector of the Mediterranean. In particular, we improved the mid-Holocene RSL record in Sardinia, where only scarce data were previously available

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Post-Roman sea-level changes on Pag Island (Adriatic Sea): Dating Croatia's “enigmatic” coastal notch?

Cited by 47 publications

References 67 publications

Tracing the Alkinoos Harbor of ancient Kerkyra, Greece, and reconstructing its paleotsunami history

Tracing the Alkinoos Harbor of ancient Kerkyra, Greece, and reconstructing its paleotsunami history

Tectonic influences on late Holocene relative sea levels from the central-eastern Adriatic coast of Croatia

Mid to late Holocene environmental changes along the coast of western Sardinia (Mediterranean Sea)

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