Keywords: Achnanthes sp.; Achnanthidium exiguum; Achnanthidium minutissimum; Amphora inariensis; Amphora ovalis; Amphora pediculus; Amphora sp.; Aulacoseira ambigua; Aulacoseira distans; Aulacoseira sp.; Aulacoseira subarctica; AWI_Envi; AWI Arctic Land Expedition; Brachysira cf. neoexilis; Brachysira vitrea; Caloneis silicula; Cavinula sp.; Chrysophyceae cysts; Craticula sp.; Cyclotella cf. atomus; Cyclotella comensis; Cyclotella cyclopuncta; Cyclotella iris; Cyclotella ocellata; Cyclotella tripartita; Cymbella aspera; Cymbella excisa; Cymbella proxima; d13C; Depth, bottom/max; DEPTH, sediment/rock; Depth, top/min; Diatom analysis (Battarbee, 1986, in Berglund, Handbook of Holocene Pal.); diatoms; Diatoms, planktic/benthic ratio; Diatom valves, per unit sediment mass; Diploneis elliptica; Encyonema silesiacum; Encyonema sp.; Encyonopsis cesatii; Eucocconeis alpestris; Eucocconeis flexella; Eucocconeis laevis; Eunotia minor; Eunotia sp.; Event label; Fragilaria capucina; Fragilaria cf. perminuta; Fragilaria gracilis; Fragilaria leptostauron; Fragilaria radians; Fragilaria sp.; Fragilariforma virescens var. exigua; GC; Geochemistry; Gomphonema acuminatum; Gomphonema angustatum; Gravity corer; Hannaea arcus; Hippodonta costulata; Karayevia cf. ploensis; Karayevia laterostrata; Karayevia suchlandtii; Lake Bolshoe Toko, Yakutia, Russia; Lake sediment core; Luticula cf. mobiliensis; Mallomonas; Mallomonas index; mercury; Navicula cryptocephala; Navicula perminuta; Navicula radiosa; Neidium dubium; Nitzschia angustata; Nitzschia dissipata; PG2133-1; PG2133-4; Pinnularia sp.; Planothidium lanceolatum; Planothidium peragallii; Platessa hustedtii; Pliocaenicus bolshetokoensis; Polar Terrestrial Environmental Systems @ AWI; Psammothidium bioretii; Psammothidium levanderi; Psammothidium subatomoides; Pseudostaurosira parasitica var. subconstricta; Reimeria sinuata; Rossithidium nodosum; Rossithidium petersenii; Rossithidium pusillum; RU-Land_2013_Yakutia; Sellaphora pupula; Skabitschewskia oestrupii; Stauroneis anceps; Staurosira venter; Tabellaria fenestrata; Tabellaria flocculosa; Total counts; Yakutia2013