Sediment and water influxes into the Black Sea by Anatolian rivers

Algan, Oya; Gönençgil, Barbaros

doi:10.1127/zfg/43/1999/61

Cited by 16 publications

(11 citation statements)

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“…The Krasnodar reservoir, the largest in the northern Caucasus, is located in the Kuban basin 242 km upstream of the mouth. After construction of the Krasnodar Dam in 1975, the original sediment load of the river (8.4 × 10 6 ton/a) decreased by ~90% (Table ; Algan et al ., ). Our geomorphological analysis focused on the highland and foothill regions.…”

Section: River Morphometry and Sediment Loadmentioning

confidence: 97%

Tracking sediment provenance and erosional evolution of the western Greater Caucasus

Vezzoli

Garzanti

Vincent

et al. 2014

Earth Surf Processes Landf

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This article investigates landscape characteristics and sediment composition in the western Greater Caucasus by using multiple methods at different timescales. Our ultimate goal is to compare short‐term versus long‐term trends in erosional processes and to reconstruct spatio‐temporal changes in sediment fluxes as controlled by partitioning of crustal shortening and rock uplift in the orogenic belt. Areas of active recent uplift are assessed by quantitative geomorphological techniques [digital elevation model (DEM) analysis of stream profiles and their deviation from equilibrium] and compared with regions of rapid exhumation over longer time intervals as previously determined by fission‐track and cosmogenic‐nuclide analyses. Complementary information from petrographic and heavy‐mineral analyses of modern sands and ancient sandstones is used to evaluate erosion integrated throughout the history of the orogen. River catchments displaying the highest relief, as shown by channel‐steepness indices, correspond with the areas of most rapid exhumation as outlined by thermochronological data. The region of high stream gradients is spatially associated with the highest topography around Mount Elbrus, where sedimentary cover strata have long been completely eroded and river sediments display the highest metamorphic indices and generally high heavy‐mineral concentrations. This study reinforces the suggestion that the bedrock–channel network can reveal much of the evolution of tectonically active landscapes, and implies that the controls on channel gradient ultimately dictate the topography and the relief along the Greater Caucasus. Our integrated datasets, obtained during a decade of continuing research, display a general agreement and regularity of erosion patterns through time, and consistently indicate westward decreasing rates of erosional unroofing from the central part of the range to the Black Sea. Copyright © 2014 John Wiley & Sons, Ltd.

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Section: River Morphometry and Sediment Loadmentioning

confidence: 97%

Tracking sediment provenance and erosional evolution of the western Greater Caucasus

Vezzoli

Garzanti

Vincent

et al. 2014

Earth Surf Processes Landf

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“…The two coring sites are located ∼65 and ∼50 km northeast of the Sakarya River mouth on topographically elevated ridges on the continental slope away from the pathways of turbidity currents (Figure 2) and are thus particularly suitable for reconstructing past variations in the terrigenous input from rivers. The Sakarya River is the longest Anatolian river and drains parts of the central Anatolian plain and the Pontide Mountains along the Black Sea [ Algan et al , 1999] where interannual to decadal‐scale rainfall changes in this Mediterranean‐type winter rain climate region are strongly coupled to AO/NAO [ Turkes and Erlat , 2003].…”

Section: Study Areasmentioning

confidence: 99%

Multicentennial‐scale hydrological changes in the Black Sea and northern Red Sea during the Holocene and the Arctic/North Atlantic Oscillation

et al. 2006

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Paleoenvironmental proxy data for ocean properties, eolian sediment input, and continental rainfall based on high‐resolution analyses of sediment cores from the southwestern Black Sea and the northernmost Gulf of Aqaba were used to infer hydroclimatic changes in northern Anatolia and the northern Red Sea region during the last ∼7500 years. Pronounced and coherent multicentennial variations in these records reveal patterns that strongly resemble modern temperature and rainfall anomalies related to the Arctic Oscillation/North Atlantic Oscillation (AO/NAO). These patterns suggest a prominent role of AO/NAO–like atmospheric variability during the Holocene beyond interannual to interdecadal timescales, most likely originating from solar output changes.

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“…It receives a diversity of toxic compounds from industrial, domestic, agricultural, mining, livestock and other sources through direct dumping from rivers and runoff, posing risks to those people whom base their diet on resources coming from the Black Sea. The Black Sea ecosystem has been seriously damaged as a result of pollution (Algan, et al, 1999 and2000;Polikarpov et al, 2004;Yüce and Gazioğlu, 2006). Bat (2014) indicated that heavy metal pollution the Black Sea ecosystems are growing at a danger level and have become an important problem.…”

Section: Introductionmentioning

confidence: 99%

Heavy Metal Levels in Commercial Fishes Caught in the southern Black Sea coast

Bat¹,

Arıcı²,

Sezgi̇n³

et al. 2017

International Journal of Environment and Geoinformatics

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The purpose of the current study is to evaluate the levels of seven heavy metals (arsenic, copper, zinc, mercury, lead, cadmium and iron) and metal (aluminium,) in the edible tissues of Scophthalmus maximus, Spicara maena, Chelidonichthys lucerna, Alosa fallax and Scorpaena porcus caught in Sinop coasts of the Black Sea. The samples were obtained during the fishing season in 2013 directly from the Turkish fishing vessels. Hg, Cd and Pb were not detected in the edible part of all fish samples. The metal levels in edible tissues did not exceed the standard guideline values. Estimated hazard index (HI) suggest that these metals in the edible tissues of the fish were not toxic for consumers, where the HIs of all the considered metals were below the value of 1.

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Sediment and water influxes into the Black Sea by Anatolian rivers

Cited by 16 publications

References 0 publications

Tracking sediment provenance and erosional evolution of the western Greater Caucasus

Tracking sediment provenance and erosional evolution of the western Greater Caucasus

Multicentennial‐scale hydrological changes in the Black Sea and northern Red Sea during the Holocene and the Arctic/North Atlantic Oscillation

Heavy Metal Levels in Commercial Fishes Caught in the southern Black Sea coast

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