Chemical and isotopic characteristics of a glacier-derived naled in front of Austre Grønfjordbreen, Svalbard

Autor: Jacob C. Yde, Andy J. Hodson, Irina Solovjanova, Jørgen P. Steffensen, Per Nørnberg, Jan Heinemeier, Jesper Olsen

Publikováno v: Polar Research, Vol 31, Iss 0, Pp 1-15 (2012)

The chemical and stable isotope composition of a glacier-derived naled in front of the glacier Austre Grønfjordbreen, Svalbard, is examined to elucidate how secondary processes such as preferential retention and leaching affect naled chemistry. Inte

Externí odkaz: https://doaj.org/article/f293ed174039464c98e429c330f69ec8

Assessing the sources of inorganic carbon in surface-, soil- and non-thermal groundwater in Iceland by δ13C and 14C

Autor: Árný E. Sveinbjörnsdóttir, Rósa Ólafsdóttir, Andri Stefánsson, Stefán Arnórsson, Jan Heinemeier, Eydis Salome Eiriksdottir

Publikováno v: Sveinbjörnsdóttir, Á E, Stefánsson, A, Heinemeier, J, Arnórsson, S, Eiríksdóttir, E S & Ólafsdóttir, R 2020, ' Assessing the sources of inorganic carbon in surface-, soil-and non-thermal groundwater in Iceland by δ 13 C and 14 C ', Geochimica et Cosmochimica Acta, vol. 279, pp. 165-188 . https://doi.org/10.1016/j.gca.2020.03.021

Chemical weathering and associated atmospheric CO2 uptake by surface water and transport of dissolved inorganic carbon (DIC) by rivers to the ocean and subsequent carbonate deposition has been suggested to play a major role in long-time climate chang

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c4238f824c06e3696e3a966020afc246
https://doi.org/10.1016/j.gca.2020.03.021

Is there a reliable taphonomic clock in the temperate North Atlantic? An example from a North Sea population of the mollusc Arctica islandica

Autor: James D. Scourse, Paul G. Butler, Jan Heinemeier, Christopher A. Richardson, Nicole M Fraser, Charlotte L Bryant

Publikováno v: Butler, P G, Fraser, N M, Scourse, J D, Richardson, C A, Bryant, C & Heinemeier, J 2020, ' Is there a reliable taphonomic clock in the temperate North Atlantic? An example from a North Sea population of the mollusc Arctica islandica ', Palaeogeography, Palaeoclimatology, Palaeoecology, vol. 560, 109975 . https://doi.org/10.1016/j.palaeo.2020.109975

Two hundred and seventy-seven shells of the long-lived bivalve mollusc Arctica islandica, collected from the Fladen Ground, northern North Sea, were radiocarbon dated and their taphonomic condition assessed, in order to determine whether taphonomic c

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::807fad4c6c2306ba7850afc57141fb67
https://pure.au.dk/portal/da/publications/is-there-a-reliable-taphonomic-clock-in-the-temperate-north-atlantic-an-example-from-a-north-sea-population-of-the-mollusc-arctica-islandica(8eba1f57-71a7-4859-b245-ea93ff680155).html

A field guide to mortar sampling for radiocarbon dating*

Autor: Rubina Raja, Gerard Barrett, Thomas Schrøder Daugbjerg, Irka Hajdas, Jesper V. Olsen, Åsa Ringbom, Danuta Michalska, Jan Heinemeier, Alf Lindroos

Publikováno v: Daugbjerg, T S, Lindroos, A, Heinemeier, J, Ringbom, Barrett, G, Michalska, D, Hajdas, I, Raja, R & Olsen, J 2020, ' A field guide to mortar sampling for radiocarbon dating* ', Archaeometry . https://doi.org/10.1111/arcm.12648
Daugbjerg, T S, Lindroos, A, Heinemeier, J, Ringbom, Å, Barrett, G, Michalska, D, Hajdas, I, Raja, R & Olsen, J 2021, ' A field guide to mortar sampling for radiocarbon dating ', Archaeometry . https://doi.org/10.1111/arcm.12648
Daugbjerg, T S, Lindroos, A, Heinemeier, J, Ringbom, Å, Barrett, G, Michalska, D, Hajdas, I, Raja, R & Olsen, J 2021, ' A field guide to mortar sampling for radiocarbon dating ', Archaeometry, vol. 63, no. 5, pp. 1121-1140 . https://doi.org/10.1111/arcm.12648
Archaeometry, 63 (5)

Radiocarbon dating of mortars is a method for absolute dating of historical mortared stone structures. Successful mortar dating studies have answered chronological questions, while other studies have revealed that mortar samples can have complication

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8b486f210ba3a046422beb757274d506
https://pure.au.dk/portal/da/publications/a-field-guide-to-mortar-sampling-for-radiocarbon-dating(82d2e1af-d409-4441-ad63-4ea532bdcac7).html

O, H and C isotopic systematics of Icelandic groundwater

Autor: Arny E. Sveinbjörnsdottir, Jan Heinemeier, Andri Stefánsson

Publikováno v: E3S Web of Conferences, Vol 98, p 07031 (2019)

Stable water isotopes of oxygen and hydrogen have been studied in Icelandic natural waters since 1960 for hydrological and geothermal research. All the waters are of meteoric and seawater origin. The measured range in δD and δ18O is large -131 to +

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d111e2a36ed7450fe4537d9853721d55
https://www.e3s-conferences.org/articles/e3sconf/pdf/2019/24/e3sconf_wri-162018_07031.pdf