Evidence of the Matuyama-Brunhes transition in cave sediment in Central Europe

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985530%3A_____%2F21%3A00552925" target="_blank" >RIV/67985530:_____/21:00552925 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00216208:11310/21:10430486

Výsledek na webu

<a href="https://www.sciencedirect.com/science/article/abs/pii/S1040618221003864" target="_blank" >https://www.sciencedirect.com/science/article/abs/pii/S1040618221003864</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.quaint.2021.07.005" target="_blank" >10.1016/j.quaint.2021.07.005</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Evidence of the Matuyama-Brunhes transition in cave sediment in Central Europe

Popis výsledku v původním jazyce

In this study, we offer significant improvement over previous results that identified the Matuyama-Brunhes magnetic reversal in cave sediments from the Czech Republic in Central Europe. We collected discrete samples from the sedimentary profile in Za Hajovnou cave located in the eastern part of the Czech Republic. The rock magnetism measurements indicated that the magnetic carrier of most of the samples is maghemite. Characteristic remanent magnetization (ChRM) directions and related virtual geomagnetic pole (VGP) paths indicated that the Matuyama-Brunhes transition boundary was within 5.7 cm of the sediment, located in the upper part of the sampled sedimentary section. This result showed a new, more detailed behavior of the polarity transition from that of the central European location. The migration of the paleopole between eastern Africa and western North America was established as a significant marker for the central European paleomagnetic record in terms of global magnetic data. The transition duration was 8.1 +/- 0.2 kyr, and the precursor of the reversal occurred 4 +/- 0.2 kyr before the transition. In addition, we estimated the sedimentation rate of the studied section (similar to 35 cm) in the cave as 0.7 +/- 0.2 cm/kyr.

Název v anglickém jazyce

Evidence of the Matuyama-Brunhes transition in cave sediment in Central Europe

Popis výsledku anglicky

In this study, we offer significant improvement over previous results that identified the Matuyama-Brunhes magnetic reversal in cave sediments from the Czech Republic in Central Europe. We collected discrete samples from the sedimentary profile in Za Hajovnou cave located in the eastern part of the Czech Republic. The rock magnetism measurements indicated that the magnetic carrier of most of the samples is maghemite. Characteristic remanent magnetization (ChRM) directions and related virtual geomagnetic pole (VGP) paths indicated that the Matuyama-Brunhes transition boundary was within 5.7 cm of the sediment, located in the upper part of the sampled sedimentary section. This result showed a new, more detailed behavior of the polarity transition from that of the central European location. The migration of the paleopole between eastern Africa and western North America was established as a significant marker for the central European paleomagnetic record in terms of global magnetic data. The transition duration was 8.1 +/- 0.2 kyr, and the precursor of the reversal occurred 4 +/- 0.2 kyr before the transition. In addition, we estimated the sedimentation rate of the studied section (similar to 35 cm) in the cave as 0.7 +/- 0.2 cm/kyr.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10505 - Geology

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2021

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Quaternary International

ISSN

1040-6182

e-ISSN

1873-4553

Svazek periodika

604

Číslo periodika v rámci svazku

December

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

12

Strana od-do

16-27

Kód UT WoS článku

000697562500002

EID výsledku v databázi Scopus

2-s2.0-85110544622