Naslov
Mercury anomaly at the Cretaceous -Tertiary boundry; Dolenja Vas, Slovenia.

Autori
Palinkaš, Ladislav ; Drobne, Katica ; Durn, Goran ; Miko, Slobodan

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
The role of impact processes in the geological and biological evolution of the planet Earth / Drobne, K. ; Goričan, Š. ; Kotnik, B. - Postojna : Scientific Research Centre SAZU, 1996, 57-60

Skup
International workshop POSTOJNA ‘96: The role of impact processes in the geological and biological evolution of the planet Earth

Mjesto i datum
Postojna, Slovenija, 28.09.1996. - 02.10.1996

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
K/T boundary; mercury anomaly; Dolenja Vas

Sažetak
In the eastern Dolenja Vas section (DVE) the K/T boundary is situated between the rudist and Paleocene micrite limestones, is marked by a hardground, whereas in the western section (DVW) it is characterised by 10 to 30 cm thick breccias (debris flow). Thirty-nine rock samples were collected along the two profiles at an irregular distance from the K/T boundary. DVE section extends 45 cm below the boundary in the Cretaceous rocks and 60 cm above in the overlying Paleocene carbonates. DVW section is sampled from 85 cm below the K/T contact to 50 cm above it. The mercury analysis was performed by pyrolysis with a gold wire mercury vapor analyser, AGP-1. The Hg concentrations vary between 6 and 290 ng/g. The maximum was obtained in the uppermost Cretaceous layer of DVE section (290 ng/g) in a composite sample. The DVW section anomaly is less expressive (49 ng/kg).

Izvorni jezik
Engleski

Znanstvena područja
Geologija

POVEZANOST RADA