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Could atmospheric carbon be driving sedimentation?

Vinkovic, Andrija; Laptyev, Gennadiy; Yaprak, Gunseli; Slavova, Krasimira; Joksimovic, Danijela; Troskot-Corbic, Tamara; Frontasyeva, Marina; Duliu, Octavian G.; Bylyku, Elida; Shyti, Manjola; Humbatov, Famil; Nuhanovic, Mirza; Smjecanin, Narcisa; Nonova, Tzvetana; Dobrev, Lyuben; Pashalidis, Ioannis; Melikadze, George; Ioannidou, Alexandra; Tsabaris, Christos; Aidarkhanova, Almira; Aidarkhanova, Almira


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    "creators": [
      {
        "affiliation": "Rudjer Boskovic Inst, Bijenicka C 54, Zagreb, Croatia", 
        "name": "Vinkovic, Andrija"
      }, 
      {
        "affiliation": "Ukrainian Hydrometeorol Inst, Kiev, Ukraine", 
        "name": "Laptyev, Gennadiy"
      }, 
      {
        "affiliation": "Ege Univ, Inst Nucl Sci, Izmir, Turkey", 
        "name": "Yaprak, Gunseli"
      }, 
      {
        "affiliation": "Bulgarian Acad Sci, Inst Oceanol, Varna, Bulgaria", 
        "name": "Slavova, Krasimira"
      }, 
      {
        "affiliation": "Univ Montenegro, Inst Marine Biol, Kotor, Montenegro", 
        "name": "Joksimovic, Danijela"
      }, 
      {
        "affiliation": "INA Ind Nafte Dd, Zagreb, Croatia", 
        "name": "Troskot-Corbic, Tamara"
      }, 
      {
        "affiliation": "Joint Inst Nucl Res, 6 Joliot Curie Str, Dubna 141980, Russia", 
        "name": "Frontasyeva, Marina"
      }, 
      {
        "name": "Duliu, Octavian G."
      }, 
      {
        "affiliation": "Univ Tirana, Inst Appl Nucl Phys, POB 85,Qesarake St, Tirana, Albania", 
        "name": "Bylyku, Elida"
      }, 
      {
        "affiliation": "Univ Tirana, Inst Appl Nucl Phys, POB 85,Qesarake St, Tirana, Albania", 
        "name": "Shyti, Manjola"
      }, 
      {
        "affiliation": "Azerbaijan Natl Acad Sci, Inst Radiat Problems, Environm Phys & Chem Lab, Av H Javid 31a, Baku, Azerbaijan", 
        "name": "Humbatov, Famil"
      }, 
      {
        "affiliation": "Univ Sarajevo, Fac Sci, Dept Radiochem, Sarajevo, Bosnia & Herceg", 
        "name": "Nuhanovic, Mirza"
      }, 
      {
        "affiliation": "Univ Sarajevo, Fac Sci, Dept Radiochem, Sarajevo, Bosnia & Herceg", 
        "name": "Smjecanin, Narcisa"
      }, 
      {
        "affiliation": "Bulgarian Acad Sci, Inst Nucl Res & Nucl Energy, Sofia, Bulgaria", 
        "name": "Nonova, Tzvetana"
      }, 
      {
        "affiliation": "Bulgarian Acad Sci, Inst Nucl Res & Nucl Energy, Sofia, Bulgaria", 
        "name": "Dobrev, Lyuben"
      }, 
      {
        "affiliation": "Univ Cyprus, Chem Dept, Radioanalyt Environm Chem Lab, Nicosia, Cyprus", 
        "name": "Pashalidis, Ioannis"
      }, 
      {
        "affiliation": "Ivane Javakhishvili Tbilisi State Univ, Res Ctr Hydrogeophys & Geotherm, Inst Geophys, Aleksidze Str 1, GE-0160 Tbilisi, Georgia", 
        "name": "Melikadze, George"
      }, 
      {
        "affiliation": "Aristotle Univ Thessaloniki, Fac Sci, Phys Dept, Nucl Phys & Elementary Particles Phys Div, Thessaloniki, Greece", 
        "name": "Ioannidou, Alexandra"
      }, 
      {
        "affiliation": "Hellen Ctr Marine Res, Inst Oceanog, Marine Environm Lab, 46-7 Km Athens Sounio Ave,POB 712, Athens 19013, Anavyssos, Greece", 
        "name": "Tsabaris, Christos"
      }, 
      {
        "affiliation": "Inst Radiat Safety & Ecol Republ Kazakhstan, Kurchatov, Kazakhstan", 
        "name": "Aidarkhanova, Almira"
      }, 
      {
        "affiliation": "Inst Radiat Safety & Ecol Republ Kazakhstan, Kurchatov, Kazakhstan", 
        "name": "Aidarkhanova, Almira"
      }
    ], 
    "description": "Purpose The objective of this study was to provide insights into the most recent responses of sediments to climate change and their capability to sequester atmospheric carbon (C). Methods Three sediment cores were collected, one from the western Black Sea, and two from the southern Adriatic Sea. Cores were extruded and sectioned into 1 cm or 0.5 cm intervals. Sections were frozen, weighed, freeze-dried, and then weighed again to obtain dry weights. Freeze-dried samples were dated by using lead 210 (Pb-210) and cesium 137/ americium 241 (Cs-137/Am-241). Organic and inorganic C were determined by combustion. Particle size distribution was determined using a Beckman Coulter particle size analyzer (LS 13,320; Beckman Coulter Inc.). Mineralogical analyses were carried out by a Philips X'Pert powder diffractometer. Results Sedimentation and organic and inorganic C accumulation rates increased with time in both the Black Sea and the Adriatic Sea. The increase in accumulation rates continued after the global introduction in the early 1970s of controls on the release of phosphorus (P) into the environment and despite the reduced sediment yield of major rivers (Po and Danube). Therefore, the increased accumulation of organic and inorganic C in the sediments cannot be assigned only to nutrient availability. Instead, we suggest that the increase in organic C is the consequence of the increase in atmospheric C, which has made more carbon dioxide (CO2) available to phytoplankton, thus enabling more efficient photosynthesis. This process known as CO2 fertilization may increase the organic C accumulation in sediments. Simultaneously, the increase of sea temperatures decreases the calcite solubility resulting in increases of the inorganic C accumulation. Conclusion Our results suggest that long-term, general increases in accumulation rates of organic and inorganic C in sediments are the consequence of increases in atmospheric C. This shows that coastal sediments play an important role in C uptake and thus in regulating the Earth's climate.", 
    "doi": "10.1007/s11368-022-03282-0", 
    "has_grant": false, 
    "journal": {
      "issue": "11", 
      "pages": "2912-2928", 
      "title": "JOURNAL OF SOILS AND SEDIMENTS", 
      "volume": "22"
    }, 
    "license": {
      "id": "cc-by"
    }, 
    "publication_date": "2022-01-01", 
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    "title": "Could atmospheric carbon be driving sedimentation?"
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