/* DATA DESCRIPTION: Citation: Klyuvitkina, Tatiana S; Novichkova, Ekaterina A; Agafonova, Elizaveta A; Lozinskaia, Lubov A; Iakimova, Karina S; Matul, Alexander G; Chekhovskaya, Maria P; Mohan, Rahul; de Vernal, Anne (2026): Concentrations of diatoms and percentages of main ecological groups and species from sediment core AMK-6150 (Norwegian Sea) [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.988976 Abstract: The data set contains micropaleontological data from core AMK-6150 (Norwegian Sea) that covers the last 2900 years. The data include concentrations of diatoms and percentages of main ecological groups and species from core AMK-6150 in relation with core depth and age. Keyword(s): Diatoms; Holocene; Nordic Seas Related to: Klyuvitkina, Tatiana S; Novichkova, Ekaterina A; Agafonova, Elizaveta A; Lozinskaia, Lubov A; Iakimova, Karina S; Matul, Alexander G; Chekhovskaya, Maria P; Mohan, Rahul; de Vernal, Anne (2025): Late Holocene paleoceanography of the Knipovich Ridge area (Norwegian Sea) based on micropaleontological data. Marine Micropaleontology, 201, 102526, https://doi.org/10.1016/j.marmicro.2025.102526 Coverage: LATITUDE: 74.779983 * LONGITUDE: 8.435083 MINIMUM DEPTH, sediment/rock: 0.005 m * MAXIMUM DEPTH, sediment/rock: 0.305 m Event(s): AMK75-6150 (AMK-6150, АМК-6150.MK-3) * LATITUDE: 74.779983 * LONGITUDE: 8.435083 * ELEVATION: -3013.0 m * Recovery: 31 cm * LOCATION: Knipovich Ridge * CAMPAIGN: AMK75 (URI: https://doi.org/10.1134/S0001437020030030) * BASIS: Akademik Mstislav Keldysh * METHOD/DEVICE: MultiCorer (MUC) Parameter(s): Event label (Event) DEPTH, sediment/rock [m] (Depth sed) * GEOCODE AGE [ka BP] (Age) * GEOCODE Diatoms [#/g] (Diatoms) * PI: Agafonova, Elizaveta A (agafonovaelizaveta@mail.ru) * METHOD/DEVICE: Calculated * COMMENT: % of diatom content Diatoms, warm [%] (Diatom warm) * PI: Agafonova, Elizaveta A (agafonovaelizaveta@mail.ru) * METHOD/DEVICE: Calculated * COMMENT: % of diatom content Diatoms, cold [%] (Diatoms cold) * PI: Agafonova, Elizaveta A (agafonovaelizaveta@mail.ru) * METHOD/DEVICE: Calculated * COMMENT: % of diatom content Diatoms, ice-neritic [%] (Diatoms ice-neritic) * PI: Agafonova, Elizaveta A (agafonovaelizaveta@mail.ru) * METHOD/DEVICE: Calculated * COMMENT: % of diatom content Diatoms, sea ice [%] (Diatom sea ice) * PI: Agafonova, Elizaveta A (agafonovaelizaveta@mail.ru) * METHOD/DEVICE: Calculated * COMMENT: % of diatom content Diatoms, sublittoral [%] (Diatoms sublitt) * PI: Agafonova, Elizaveta A (agafonovaelizaveta@mail.ru) * METHOD/DEVICE: Calculated * COMMENT: % of diatom content Diatoms, freshwater [%] (Diatom fw) * PI: Agafonova, Elizaveta A (agafonovaelizaveta@mail.ru) * METHOD/DEVICE: Calculated * COMMENT: % of diatom content Diatoms, fossil [%] (Diatom fossil) * PI: Agafonova, Elizaveta A (agafonovaelizaveta@mail.ru) * METHOD/DEVICE: Calculated * COMMENT: % of diatom content Attheya septentrionalis [%] (A. septentrionalis) * PI: Agafonova, Elizaveta A (agafonovaelizaveta@mail.ru) * METHOD/DEVICE: Calculated * COMMENT: % of diatom content Fragilariopsis oceanica [%] (F. oceanica) * PI: Agafonova, Elizaveta A (agafonovaelizaveta@mail.ru) * METHOD/DEVICE: Calculated * COMMENT: % of diatom content Bacterosira bathyomphala [%] (B. bathyomphala) * PI: Agafonova, Elizaveta A (agafonovaelizaveta@mail.ru) * METHOD/DEVICE: Calculated * COMMENT: % of diatom content Porosira glacialis [%] (P. glacialis) * PI: Agafonova, Elizaveta A (agafonovaelizaveta@mail.ru) * METHOD/DEVICE: Calculated * COMMENT: % of diatom content Thalassiosira gravida [%] (T. gravida) * PI: Agafonova, Elizaveta A (agafonovaelizaveta@mail.ru) * METHOD/DEVICE: Calculated * COMMENT: % of diatom content Thalassiosira nordenskioeldii [%] (T. nordenskioeldii) * PI: Agafonova, Elizaveta A (agafonovaelizaveta@mail.ru) * METHOD/DEVICE: Calculated * COMMENT: % of diatom content Paralia sulcata [%] (P. sulcata) * PI: Agafonova, Elizaveta A (agafonovaelizaveta@mail.ru) * METHOD/DEVICE: Calculated * COMMENT: % of diatom content Thalassiosira angustelineata [%] (T. angustelineata) * PI: Agafonova, Elizaveta A (agafonovaelizaveta@mail.ru) * METHOD/DEVICE: Calculated * COMMENT: % of diatom content Thalassiosira baltica [%] (T. baltica) * PI: Agafonova, Elizaveta A (agafonovaelizaveta@mail.ru) * METHOD/DEVICE: Calculated * COMMENT: % of diatom content Thalassiosira eccentrica [%] (T. eccentrica) * PI: Agafonova, Elizaveta A (agafonovaelizaveta@mail.ru) * METHOD/DEVICE: Calculated * COMMENT: % of diatom content Actinocyclus curvatulus [%] (A. curvatulus) * PI: Agafonova, Elizaveta A (agafonovaelizaveta@mail.ru) * METHOD/DEVICE: Calculated * COMMENT: % of diatom content Actinocyclus divisus [%] (A. divisus) * PI: Agafonova, Elizaveta A (agafonovaelizaveta@mail.ru) * METHOD/DEVICE: Calculated * COMMENT: % of diatom content Coscinodiscus asteromphalus [%] (C. asteromphalus) * PI: Agafonova, Elizaveta A (agafonovaelizaveta@mail.ru) * METHOD/DEVICE: Calculated * COMMENT: % of diatom content Coscinodiscus radiatus [%] (C. radiatus) * PI: Agafonova, Elizaveta A (agafonovaelizaveta@mail.ru) * METHOD/DEVICE: Calculated * COMMENT: % of diatom content Shionodiscus oestrupii [%] (S. oestrupii) * PI: Agafonova, Elizaveta A (agafonovaelizaveta@mail.ru) * METHOD/DEVICE: Calculated * COMMENT: % of diatom content Thalassionema nitzschioides [%] (T. nitzschioides) * PI: Agafonova, Elizaveta A (agafonovaelizaveta@mail.ru) * METHOD/DEVICE: Calculated * COMMENT: % of diatom content Aulacoseira islandica [%] (A. islandica) * PI: Agafonova, Elizaveta A (agafonovaelizaveta@mail.ru) * METHOD/DEVICE: Calculated * COMMENT: % of diatom content Aulacoseira subarctica [%] (A. subarctica) * PI: Agafonova, Elizaveta A (agafonovaelizaveta@mail.ru) * METHOD/DEVICE: Calculated * COMMENT: % of diatom content Cyclotella meneghiniana [%] (C. meneghiniana) * PI: Agafonova, Elizaveta A (agafonovaelizaveta@mail.ru) * METHOD/DEVICE: Calculated * COMMENT: % of diatom content Gomphonema parvulum [%] (G. parvulum) * PI: Agafonova, Elizaveta A (agafonovaelizaveta@mail.ru) * METHOD/DEVICE: Calculated * COMMENT: % of diatom content Neodenticula seminae [%] (N. seminae) * PI: Agafonova, Elizaveta A (agafonovaelizaveta@mail.ru) * METHOD/DEVICE: Calculated * COMMENT: % of diatom content Hemiaulus polymorphus [%] (H. polymorphus) * PI: Agafonova, Elizaveta A (agafonovaelizaveta@mail.ru) * METHOD/DEVICE: Calculated * COMMENT: % of diatom content Eupyxidicula turris [%] (E. turris) * PI: Agafonova, Elizaveta A (agafonovaelizaveta@mail.ru) * METHOD/DEVICE: Calculated * COMMENT: % of diatom content Pyxilla caput-avis var. gracilis [%] (P. caput-avis var. gracilis) * PI: Agafonova, Elizaveta A (agafonovaelizaveta@mail.ru) * METHOD/DEVICE: Calculated * COMMENT: % of diatom content Creswellia ferox [%] (C. ferox) * PI: Agafonova, Elizaveta A (agafonovaelizaveta@mail.ru) * METHOD/DEVICE: Calculated * COMMENT: % of diatom content Thalassiosira undulosa [%] (T. undulosa) * PI: Agafonova, Elizaveta A (agafonovaelizaveta@mail.ru) * METHOD/DEVICE: Calculated * COMMENT: % of diatom content License: Creative Commons Attribution 4.0 International (CC-BY-4.0) (URI: https://creativecommons.org/licenses/by/4.0/) Status: Curation Level: Enhanced curation (URI: https://wiki.pangaea.de/wiki/Curation_levels) Size: 988 data points */ Event Depth sed [m] Age [ka BP] Diatoms [#/g] Diatom warm [%] Diatoms cold [%] Diatoms ice-neritic [%] Diatom sea ice [%] Diatoms sublitt [%] Diatom fw [%] Diatom fossil [%] A. septentrionalis [%] F. oceanica [%] B. bathyomphala [%] P. glacialis [%] T. gravida [%] T. nordenskioeldii [%] P. sulcata [%] T. angustelineata [%] T. baltica [%] T. eccentrica [%] A. curvatulus [%] A. divisus [%] C. asteromphalus [%] C. radiatus [%] S. oestrupii [%] T. nitzschioides [%] A. islandica [%] A. subarctica [%] C. meneghiniana [%] G. parvulum [%] N. seminae [%] H. polymorphus [%] E. turris [%] P. caput-avis var. gracilis [%] C. ferox [%] T. undulosa [%] AMK75-6150 0.005 0.062 471639.01 79.55 13.64 1.52 4.55 2.27 0.00 0.00 3.79 0.76 0.00 0.76 0.00 0.00 1.52 0.00 3.79 6.82 0.00 0.00 0.00 46.97 3.03 25.00 0.00 0.00 0.00 0.00 3.79 0.00 0.00 0.00 0.00 0.00 AMK75-6150 0.015 0.138 337637.63 92.63 4.21 1.05 1.05 3.16 0.00 0.00 1.05 0.00 0.00 0.00 0.00 0.00 1.05 0.00 1.05 1.05 0.00 0.00 0.00 62.11 2.11 25.26 0.00 0.00 0.00 0.00 2.11 0.00 0.00 0.00 0.00 0.00 AMK75-6150 0.025 0.216 472615.16 68.75 20.00 5.00 1.25 7.50 0.00 0.00 1.25 0.00 0.00 0.00 1.25 0.00 6.25 1.25 5.00 1.25 2.50 0.00 1.25 36.25 0.00 28.75 0.00 0.00 0.00 0.00 2.50 0.00 0.00 0.00 0.00 0.00 AMK75-6150 0.035 0.295 661443.86 75.00 18.75 1.79 0.89 7.14 1.79 0.00 0.89 0.00 0.00 0.00 0.89 0.00 5.36 6.25 2.68 1.79 1.79 0.00 0.89 41.96 0.89 18.75 0.89 0.00 0.89 0.00 11.61 0.00 0.00 0.00 0.00 0.00 AMK75-6150 0.045 0.379 500356.64 65.48 22.62 7.14 0.00 3.57 2.38 0.00 0.00 0.00 1.19 2.38 1.19 0.00 2.38 5.95 7.14 0.00 4.76 1.19 0.00 30.95 0.00 27.38 0.00 2.38 0.00 0.00 4.76 0.00 0.00 0.00 0.00 0.00 AMK75-6150 0.055 0.468 263400.72 70.45 15.91 0.00 2.27 11.36 2.27 0.00 0.00 2.27 0.00 0.00 0.00 0.00 6.82 0.00 2.27 0.00 4.55 0.00 2.27 40.91 0.00 27.27 0.00 0.00 0.00 2.27 0.00 0.00 0.00 0.00 0.00 0.00 AMK75-6150 0.065 0.555 390299.95 86.57 13.43 0.00 0.00 1.49 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 1.49 0.00 4.48 1.49 2.99 0.00 0.00 41.79 1.49 41.79 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 AMK75-6150 0.075 0.641 433045.81 77.63 17.11 2.63 0.00 2.63 1.32 0.00 0.00 0.00 0.00 0.00 1.32 1.32 1.32 0.00 7.89 0.00 6.58 0.00 0.00 38.16 0.00 39.47 0.00 1.32 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 AMK75-6150 0.085 0.726 693008.07 78.81 14.41 5.93 0.00 1.69 0.00 0.00 0.00 0.00 0.00 0.85 1.69 0.85 1.69 0.00 7.63 1.69 2.54 1.69 0.00 39.83 0.00 36.44 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 AMK75-6150 0.095 0.810 653065.03 87.27 7.27 4.55 0.91 0.91 0.00 0.00 0.91 0.00 0.00 0.00 1.82 0.00 0.91 0.00 4.55 0.91 0.91 4.55 0.00 44.55 0.91 37.27 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 AMK75-6150 0.105 0.896 140246.33 82.56 9.30 6.98 0.00 3.49 0.00 0.00 0.00 0.00 0.00 0.00 4.65 0.00 3.49 0.00 3.49 0.00 1.16 0.00 0.00 52.33 1.16 27.91 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 AMK75-6150 0.115 0.982 134910.53 85.90 10.26 2.56 1.28 1.28 0.00 0.00 0.00 1.28 0.00 0.00 1.28 0.00 1.28 0.00 5.13 1.28 2.56 6.41 0.00 50.00 0.00 29.49 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 AMK75-6150 0.125 1.072 329855.03 80.36 12.50 7.14 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 5.36 0.00 0.00 0.00 7.14 0.00 3.57 3.57 0.00 23.21 0.00 53.57 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 AMK75-6150 0.135 1.164 438323.29 66.67 29.33 4.00 0.00 1.33 0.00 0.00 0.00 0.00 0.00 0.00 2.67 0.00 1.33 0.00 21.33 5.33 1.33 5.33 0.00 40.00 0.00 21.33 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 AMK75-6150 0.145 1.253 474757.53 82.93 9.76 3.66 1.22 1.22 0.00 0.00 1.22 0.00 0.00 0.00 2.44 0.00 1.22 0.00 7.32 1.22 0.00 0.00 1.22 40.24 1.22 40.24 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 AMK75-6150 0.155 1.340 475216.68 80.49 10.98 2.44 3.66 1.22 0.00 0.00 3.66 0.00 0.00 0.00 1.22 0.00 1.22 1.22 1.22 2.44 3.66 2.44 0.00 46.34 1.22 30.49 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 AMK75-6150 0.165 1.431 291854.25 90.38 7.69 0.00 0.00 1.92 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 1.92 1.92 1.92 0.00 1.92 0.00 0.00 34.62 1.92 53.85 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 AMK75-6150 0.175 1.527 137008.32 85.00 12.50 0.00 0.00 7.50 0.00 1.25 0.00 0.00 0.00 0.00 0.00 0.00 7.50 0.00 3.75 0.00 1.25 2.50 0.00 50.00 0.00 32.50 0.00 0.00 0.00 0.00 0.00 1.25 0.00 0.00 0.00 0.00 AMK75-6150 0.185 1.626 117629.56 91.30 5.80 2.90 0.00 1.45 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 1.45 1.45 1.45 0.00 0.00 0.00 2.90 47.83 0.00 40.58 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 AMK75-6150 0.195 1.728 130416.21 79.22 16.88 3.90 0.00 6.49 0.00 0.00 0.00 0.00 0.00 0.00 2.60 0.00 6.49 0.00 5.19 0.00 2.60 1.30 1.30 42.86 0.00 33.77 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 AMK75-6150 0.205 1.829 468864.59 75.95 13.92 8.86 1.27 1.27 0.00 0.00 1.27 0.00 0.00 0.00 7.59 0.00 1.27 7.59 3.80 0.00 1.27 1.27 1.27 44.30 1.27 27.85 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 AMK75-6150 0.215 1.930 519535.22 80.68 15.91 3.41 0.00 3.41 0.00 0.00 0.00 0.00 0.00 0.00 3.41 0.00 3.41 6.82 5.68 0.00 0.00 1.14 0.00 45.45 3.41 30.68 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 AMK75-6150 0.225 2.031 469329.42 83.54 12.66 3.80 0.00 3.80 0.00 0.00 0.00 0.00 0.00 0.00 3.80 0.00 3.80 3.80 3.80 0.00 0.00 1.27 0.00 37.97 2.53 41.77 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 AMK75-6150 0.235 2.134 325587.83 58.93 30.36 8.93 1.79 14.29 0.00 0.00 1.79 0.00 0.00 1.79 7.14 0.00 14.29 10.71 1.79 0.00 0.00 1.79 1.79 12.50 1.79 41.07 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 AMK75-6150 0.245 2.236 77633.99 76.09 13.04 2.17 0.00 2.17 0.00 8.70 0.00 0.00 0.00 2.17 0.00 0.00 2.17 6.52 2.17 0.00 0.00 2.17 8.70 28.26 6.52 30.43 0.00 0.00 0.00 0.00 0.00 2.17 2.17 2.17 2.17 0.00 AMK75-6150 0.255 2.340 402649.13 76.47 17.65 2.94 0.00 7.35 0.00 1.47 0.00 0.00 0.00 0.00 2.94 0.00 7.35 4.41 4.41 0.00 0.00 0.00 0.00 36.76 4.41 35.29 0.00 0.00 0.00 0.00 0.00 1.47 0.00 0.00 0.00 0.00 AMK75-6150 0.265 2.443 430446.01 76.39 19.44 4.17 0.00 5.56 0.00 0.00 0.00 0.00 0.00 0.00 2.78 0.00 5.56 6.94 1.39 0.00 1.39 1.39 2.78 36.11 2.78 33.33 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 AMK75-6150 0.275 2.547 259086.92 80.30 13.64 4.55 0.00 6.06 0.00 0.00 0.00 0.00 0.00 0.00 1.52 0.00 4.55 6.06 1.52 1.52 0.00 1.52 1.52 28.79 3.03 45.45 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 AMK75-6150 0.285 2.648 55302.00 78.57 14.29 0.00 0.00 14.29 0.00 7.14 0.00 0.00 0.00 0.00 0.00 0.00 14.29 0.00 0.00 0.00 0.00 0.00 0.00 21.43 0.00 57.14 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 7.14 AMK75-6150 0.295 2.747 0.00 AMK75-6150 0.305 2.847 0.00