[{"@context":"http:\/\/schema.org\/","@type":"Dataset","identifier":"https:\/\/doi.org\/10.17043\/larsson-2021-fosen-vedde-1","@id":"https:\/\/doi.org\/10.17043\/larsson-2021-fosen-vedde-1","name":"Stratigraphy and geochemistry of the Fosen Tephra and the Vedde Ash at three sites on the Fosen peninsula, central Norway","description":"This dataset contains results from extractions of distal tephra (far-travelled volcanic ash) and from major-element geochemistry analyses of what was identified as two previously known tephras, the Fosen Tephra and the Vedde Ash, from three sampling sites on the Fosen peninsula in central Norway \u2014 the Lomtj\u00f8nnmyran fen, the Dam\u00e5smyran bog, and lake R\u00f8rtj\u00f8nna.\r\n\r\nThe Vedde Ash (c. 12,000 years old; 12 ka) is a well-used tephra isochron in chronological and palaeoclimatological studies of the Last Glacial-Interglacial Transition and commonly marks the Younger Dryas stadial (Greenland Stadial 1) in the accumulations wherein it is identified. The more recently discovered Fosen Tephra (c. 10.2 ka) in turn marks the early Holocene, and thus is useful to confirm the timing of the transition into the warmer climate of this epoch.\r\n\r\nThe sample material was collected in the field in May 2017 in the form of sediment cores by use of Russian corers. Tephra extractions were performed during the fall of 2017 and spring of 2018. Tephra shard concentration estimates were calculated for the Lomtj\u00f8nnmyran and Dam\u00e5smyran sites by comparing tephra counts with counts of Lycopodium spores from added tablets of known spore amounts. Geochemical analyses were performed in April and December 2018.","url":"http:\/\/bolin.su.se\/data\/larsson-2021-fosen-vedde-1","keywords":["Terrestrial","Sediment cores","Tephra","Tephrostratigraphy","Major-element geochemistry","EPMA","Fosen","Vedde","Norway","Earth science > Paleoclimate > Land records > Volcanic deposits"],"creator":{"@type":"Person","name":"Simon A. Larsson"},"citation":"Dugmore AJ, Larsen G, Newton AJ (1995) Seven tephra isochrones in Scotland. The Holocene 5:257\u2060\u200a\u2013\u200a\u2060266. doi:10.1177\/095968369500500301\r\n\r\nHayward C (2012) High spatial resolution electron probe microanalysis of tephras and melt inclusions without beam-induced chemical modification. The Holocene 22:119\u2060\u200a\u2013\u200a\u2060125. doi:10.1177\/0959683611409777\r\n\r\nH\u00f8gaas F, Larsson SA, Klug M, Olsen L, Wasteg\u00e5rd S (2021) Palaeolake sediment records reveal a mid- to late Younger Dryas ice sheet maximum in Mid-Norway. Manuscript in preparation\r\n\r\nJowsey PC (1966) An improved peat sampler. New Phytologist 65:245\u2060\u200a\u2013\u200a\u2060248. doi:10.1111\/j.1469-8137.1966.tb06356.x\r\n\r\nLind EM, Wasteg\u00e5rd S, Larsen JJ (2013) A Late Younger Dryas\u2013Early Holocene tephrostratigraphy for Fosen, Central Norway. Journal of Quaternary Science 28:803\u2060\u200a\u2013\u200a\u2060811. doi:10.1002\/jqs.2676\r\n\r\nMangerud J, Lie SE, Furnes H, Kristiansen IL, L\u00f8mo L (1984) A Younger Dryas Ash Bed in Western Norway, and Its Possible Correlations with Tephra in Cores from the Norwegian Sea and the North Atlantic. Quaternary Research 21:85\u2060\u200a\u2013\u200a\u2060104. doi:10.1016\/0033-5894(84)90092-9\r\n\r\nTurney CSM (1998) Extraction of rhyolitic component of Vedde microtephra from minerogenic lake sediments. Journal of Paleolimnology 19:199\u2060\u200a\u2013\u200a\u2060206. doi:10.1023\/A:1007926322026","license":"https:\/\/opendatacommons.org\/licenses\/by\/","isAccessibleForFree":true,"includedInDataCatalog":{"@type":"DataCatalog","name":"Bolin Centre for Climate Research, Stockholm University","identifier":"https:\/\/bolin.su.se\/data\/","url":"https:\/\/bolin.su.se\/data\/"},"distribution":{"@type":"DataDownload","encodingFormat":"application\/zip","contentUrl":"https:\/\/bolin.su.se\/data\/uploads\/larsson-2021-fosen-vedde.zip"},"size":60525,"isBasedOn":"Dugmore AJ, Larsen G, Newton AJ (1995) Seven tephra isochrones in Scotland. The Holocene 5:257\u2060\u200a\u2013\u200a\u2060266. doi:10.1177\/095968369500500301\r\n\r\nHayward C (2012) High spatial resolution electron probe microanalysis of tephras and melt inclusions without beam-induced chemical modification. The Holocene 22:119\u2060\u200a\u2013\u200a\u2060125. doi:10.1177\/0959683611409777\r\n\r\nH\u00f8gaas F, Larsson SA, Klug M, Olsen L, Wasteg\u00e5rd S (2021) Palaeolake sediment records reveal a mid- to late Younger Dryas ice sheet maximum in Mid-Norway. Manuscript in preparation\r\n\r\nJowsey PC (1966) An improved peat sampler. New Phytologist 65:245\u2060\u200a\u2013\u200a\u2060248. doi:10.1111\/j.1469-8137.1966.tb06356.x\r\n\r\nLind EM, Wasteg\u00e5rd S, Larsen JJ (2013) A Late Younger Dryas\u2013Early Holocene tephrostratigraphy for Fosen, Central Norway. Journal of Quaternary Science 28:803\u2060\u200a\u2013\u200a\u2060811. doi:10.1002\/jqs.2676\r\n\r\nMangerud J, Lie SE, Furnes H, Kristiansen IL, L\u00f8mo L (1984) A Younger Dryas Ash Bed in Western Norway, and Its Possible Correlations with Tephra in Cores from the Norwegian Sea and the North Atlantic. Quaternary Research 21:85\u2060\u200a\u2013\u200a\u2060104. doi:10.1016\/0033-5894(84)90092-9\r\n\r\nTurney CSM (1998) Extraction of rhyolitic component of Vedde microtephra from minerogenic lake sediments. Journal of Paleolimnology 19:199\u2060\u200a\u2013\u200a\u2060206. doi:10.1023\/A:1007926322026","temporalCoverage":"\/"}]