{"id":4632,"date":"2018-05-14T07:40:22","date_gmt":"2018-05-14T07:40:22","guid":{"rendered":"http:\/\/iker.atomki.hu\/2018\/05\/14\/dijjal-jutalmazott-prezentacio\/"},"modified":"2018-05-18T12:58:23","modified_gmt":"2018-05-18T12:58:23","slug":"honourable-presentation","status":"publish","type":"post","link":"https:\/\/iker.atomki.hu\/en\/2018\/05\/14\/honourable-presentation\/","title":{"rendered":"Honourable presentation"},"content":{"rendered":"

[vc_row][vc_column][vc_column_text]The Meeting of\u00a0 Young Geoscientists\u00a0 organized by Hungarian Geological Society and The Junior Board of the Association of Hungarian Geophysicists was held on 6-7 April 2018, where Vir\u00e1g Gergely<\/strong> won a second prize in poster section. Vir\u00e1g is a BSc student in University of Debrecen and member of ICER project. Title of the presentation: Biospheroid C-14 dating\u2013 tests on recent top soils.<\/p>\n

Congratulations to Vir\u00e1g and the supervisors: Titanilla Kert\u00e9sz<\/strong>, Botond Bur\u00f3<\/strong>, Mih\u00e1ly Moln\u00e1r.<\/strong>[\/vc_column_text][\/vc_column][\/vc_row][vc_row][vc_column][vc_column_text]<\/p>\n

Biospheroid C-14 dating\u2013 tests on recent top soils<\/strong><\/span><\/h3>\n

[\/vc_column_text][vc_column_text]Titanilla Kert\u00e9sz 1<\/sup>, Vir\u00e1g Gergely 1,2<\/sup>, Botond Bur\u00f3 1<\/sup>, Mih\u00e1ly Moln\u00e1r 1<\/sup><\/p>\n

1 <\/sup>Laboratory of Climatology and Environmental Physics, Institute for Nuclear Research, Hungarian Academy of Sciences, Debrecen, Hungary<\/p>\n

2 <\/sup>Department of Mineralogy and Geology, University of Debrecen, Debrecen, Hungary[\/vc_column_text][\/vc_column][\/vc_row][vc_row][vc_column width=”1\/2″][vc_single_image image=”4627″ img_size=”full”][\/vc_column][vc_column width=”1\/2″][vc_column_text]Age determination of paleosoils is useful for the studies of archeology, soil development, climate change, paleoenvironment and landscape evolution research. C-14 dating of paleosoils is a challenging task as ordinary soil organic matter (SOM) does not give a realistic C-14 age of a soil layer as SOM is normally accumulated over hundreds or even thousands of years. If one could not find some macrofossil remains in the discovered soil horizon then the age determination is always a matter of debate. On the other hand secondary carbonates in soil could provide detailed information about the paleoenvironment and climate conditions in the past.<\/p>\n

In this study we have investigated the eartworms produced biospheroids as a possible material for soil C-14 dating. Recent studies suggested that earthworms consume preferably fresh organic matter during their life in the soil, which means the products of their digestion would contain rather recent organic carbon instead of the aged carbon from the SOM fraction.<\/p>\n

Although biospheroids are rather small (diameter < 2 mm and mass < 5 mg) pure calcite granules, accelerator mass spectrometry (AMS) technique gives the possibility of their radiocarbon dating at the AMS Laboratory of the Institute of Nuclear Research of HAS (Atomki).<\/p>\n

We have investigated 8 different recent topsoil samples collected at 5 different localities in the Hajdus\u00e1g area (Hungary). Biospheroids were carefully collected form each soil samples and 2-3 granules were used for C-14 dating of the individual soil samples. Results confirmed that biospheroids mostly contain young (max age 30 years) organic carbon, which gives realistic (zero) C-14 age for the top soils.<\/p>\n

The research was supported by the European Union and the State of Hungary, co-\ufb01nanced by the European Regional Development Fund in the project of GINOP-2.3.2-15-2016-00009 \u2018ICER\u2019.[\/vc_column_text][\/vc_column][\/vc_row]<\/p>\n<\/div>","protected":false},"excerpt":{"rendered":"

[vc_row][vc_column][vc_column_text]The Meeting of\u00a0 Young Geoscientists\u00a0 organized by Hungarian Geological Society and The Junior Board of the Association of Hungarian Geophysicists was held on 6-7 April 2018, [\u2026]<\/span><\/p>\n","protected":false},"author":3,"featured_media":4624,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"inline_featured_image":false,"jetpack_post_was_ever_published":false,"footnotes":""},"categories":[16],"tags":[],"class_list":["post-4632","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-ginop"],"jetpack_featured_media_url":"https:\/\/i0.wp.com\/iker.atomki.hu\/wp-content\/uploads\/sites\/2\/2018\/05\/fokep.jpg?fit=789%2C768&ssl=1","jetpack_shortlink":"https:\/\/wp.me\/paF6JY-1cI","_links":{"self":[{"href":"https:\/\/iker.atomki.hu\/en\/wp-json\/wp\/v2\/posts\/4632","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/iker.atomki.hu\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/iker.atomki.hu\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/iker.atomki.hu\/en\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/iker.atomki.hu\/en\/wp-json\/wp\/v2\/comments?post=4632"}],"version-history":[{"count":6,"href":"https:\/\/iker.atomki.hu\/en\/wp-json\/wp\/v2\/posts\/4632\/revisions"}],"predecessor-version":[{"id":4638,"href":"https:\/\/iker.atomki.hu\/en\/wp-json\/wp\/v2\/posts\/4632\/revisions\/4638"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/iker.atomki.hu\/en\/wp-json\/wp\/v2\/media\/4624"}],"wp:attachment":[{"href":"https:\/\/iker.atomki.hu\/en\/wp-json\/wp\/v2\/media?parent=4632"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/iker.atomki.hu\/en\/wp-json\/wp\/v2\/categories?post=4632"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/iker.atomki.hu\/en\/wp-json\/wp\/v2\/tags?post=4632"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}