New palaeomagnetic data from the Palaeozoic carbonates of the
Moravo-Silesian Zone (Czech Republic): evidence for a timing
and origin of the late Variscan remagnetization

J 2008

New palaeomagnetic data from the Palaeozoic carbonates of the Moravo-Silesian Zone (Czech Republic): evidence for a timing and origin of the late Variscan remagnetization

GRABOWSKI, Jacek, Ondřej BÁBEK, Jerzy NAWROCKI and Čestmír TOMEK

Basic information

Original name

New palaeomagnetic data from the Palaeozoic carbonates of the Moravo-Silesian Zone (Czech Republic): evidence for a timing and origin of the late Variscan remagnetization

Name in Czech

Nová paleomagnetická data z paleozoických karbonátů moravskoslezské zóny (Česká republika): evidence pro časové zařazení a původ pozdně variské remagnetizace

Authors

GRABOWSKI, Jacek (616 Poland), Ondřej BÁBEK (203 Czech Republic, guarantor), Jerzy NAWROCKI (616 Poland) and Čestmír TOMEK (203 Czech Republic)

Edition

Geological Quarterly, Warszawa, 2008, 1641-7291

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

10500 1.5. Earth and related environmental sciences

Country of publisher

Poland

Confidentiality degree

není předmětem státního či obchodního tajemství

Impact factor

Impact factor: 0.892

RIV identification code

RIV/00216224:14310/08:00027831

Organization unit

Faculty of Science

UT WoS

000262714900003

Keywords in English

Czech Republic; Moravo-Silesian Zone; palaeomagnetism; remagnetization

Abstract

ORIG CZ

V originále

Palaeomagnetic studies were carried out in the Devonian to Early Carboniferous carbonates of the Moravo-Silesian Zone: MSZ (Czech Republic) in order to evaluate the timing and origin of late Variscan magnetic overprinting. Sampling localities were spread out along the strike of the MSZ from the SW to NE. Previously published thermal maturity data have demonstrated a significant gradient from SW (burial temperatures 150 to 200 deg.C) to NE of the region (250 to 300 deg.C). A late Variscan remagnetization direction (component A), carried by magnetite, was identified in 6 localities. Three phases of the remagnetization in the MSZ might be distinguished which might be assigned to Early to Late Carboniferous, Late Carboniferous and Early Permian. They are coeval with remagnetization events distinguished in Ardennes. A correlation exists between thermal indices and unblocking temperature spectra of component A. Thermal activation nomograms show that component A might be either a thermoviscous or thermochemical remanent magnetization acquired due to a thermal event (deep burial) of 1 to 10 My duration and stabilized during subsequent up lift. A more ancient component B, identified in the SW part, previously interpreted as primary, is shown to be a synfolding remagnetisation. It indicates 70 deg. clock wise rotations before the acquisition of the component A.

In Czech

viz anglický text

Links

MSM0021622412, plan (intention)

Name: Interakce mezi chemickými látkami, prostředím a biologickými systémy a jejich důsledky na globální, regionální a lokální úrovni (INCHEMBIOL) (Acronym: INCHEMBIOL)

Investor: Ministry of Education, Youth and Sports of the CR, Interactions among the chemicals, environment and biological systems and their consequences on the global, regional and local scales (INCHEMBIOL)

Citovat

GRABOWSKI, Jacek, Ondřej BÁBEK, Jerzy NAWROCKI and Čestmír TOMEK. New palaeomagnetic data from the Palaeozoic carbonates of the Moravo-Silesian Zone (Czech Republic): evidence for a timing and origin of the late Variscan remagnetization. Geological Quarterly. Warszawa, 2008, vol. 52, No 4, p. 321-334. ISSN 1641-7291.

@article{821836,
   author = {Grabowski, Jacek and Bábek, Ondřej and Nawrocki, Jerzy and Tomek, Čestmír},
   article_location = {Warszawa},
   article_number = {4},
   keywords = {Czech Republic; Moravo-Silesian Zone; palaeomagnetism; remagnetization},
   language = {eng},
   issn = {1641-7291},
   journal = {Geological Quarterly},
   title = {New palaeomagnetic data from the Palaeozoic carbonates of the Moravo-Silesian Zone (Czech Republic): evidence for a timing and origin of the late Variscan remagnetization},
   volume = {52},
   year = {2008}
}

TY  - JOUR
ID  - 821836
AU  - Grabowski, Jacek - Bábek, Ondřej - Nawrocki, Jerzy - Tomek, Čestmír
PY  - 2008
TI  - New palaeomagnetic data from the Palaeozoic carbonates of the Moravo-Silesian Zone (Czech Republic): evidence for a timing and origin of the late Variscan remagnetization
JF  - Geological Quarterly
VL  - 52
IS  - 4
SP  - 321-334
EP  - 321-334
SN  - 16417291
KW  - Czech Republic
KW  - Moravo-Silesian Zone
KW  - palaeomagnetism
KW  - remagnetization
N2  - Palaeomagnetic studies were carried out in the Devonian to Early Carboniferous carbonates of the Moravo-Silesian Zone: MSZ (Czech Republic) in order to evaluate the timing and origin of late Variscan magnetic overprinting. Sampling localities were spread out along the strike of the MSZ from the SW to NE. Previously published thermal maturity data have demonstrated a significant gradient from SW (burial temperatures 150 to 200 deg.C) to NE of the region (250 to 300 deg.C). A late Variscan remagnetization direction (component A), carried by magnetite, was identified in 6 localities. Three phases of the remagnetization in the MSZ might be distinguished which might be assigned to Early to Late Carboniferous, Late Carboniferous and Early Permian. They are coeval with remagnetization events distinguished in Ardennes. A correlation exists between thermal indices and unblocking temperature spectra of component A. Thermal activation nomograms show that component A might be either a thermoviscous or thermochemical remanent magnetization acquired due to a thermal event (deep burial) of 1 to 10 My duration and stabilized during subsequent up lift. A more ancient component B, identified in the SW part, previously interpreted as primary, is shown to be a synfolding remagnetisation. It indicates 70 deg. clock wise rotations before the acquisition of the component A.
ER  -

GRABOWSKI, Jacek, Ondřej BÁBEK, Jerzy NAWROCKI and Čestmír TOMEK. New palaeomagnetic data from the Palaeozoic carbonates of the Moravo-Silesian Zone (Czech Republic): evidence for a timing and origin of the late Variscan remagnetization. \textit{Geological Quarterly}. Warszawa, 2008, vol.~52, No~4, p.~321-334. ISSN~1641-7291.

Detailed Information on Publication Record