Da Silva, Anne-Christine; Hladil, Jindra; Dekkers, Mark J; Chadimova, Leona; Slavik, Ladislav (2024): Magnetic susceptibility record of the Pod Barrandovem section (Praha Formation) [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.971568
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Published: 2024-08-19 • DOI registered: 2024-09-17
Abstract:
The Early Devonian geological time scale (base of the Devonian at 418.8 ±2.9Myr, Becker et al. (2012; doi:10.1016/B978-0-444-59425-9.00022-6) suffers from poor age control, with associated large uncertainties between 2.5 and 4.2 Myr on the stage boundaries. Identifying orbital cycles from sedimentary successions can serve as a very powerful chronometer to test and, where appropriate, improve age models. Here, we focus on the Lochkovian and Pragian, the two lowermost Devonian stages. High-resolution magnetic susceptibility (χin- 5 to 10 cm sampling interval) record are gathered from one main limestone section, the Pod Barrandovem (174 m; Praha Formation) in the Czech Republic. This record is used with two other records (Pozare and Branzovy) to provide a cyclostratigraphic time scale and to provide time estimates for the Lochkovian and Pragian. Magnetic susceptibility (χin) measurements have been carried out in different laboratories. Using a KLY-2 at the Czech Academy of Sciences and a MFK-1 at Utrecht University, both are Kappabridge device, manufactured by AGICO (Brno, Czech Republic).
Keyword(s):
Related to:
Da Silva, Anne-Christine; Hladil, Jindra; Chadimova, Leona; Slavik, Ladislav; Hilgen, Frederik J; Bábek, Ondřej; Dekkers, Mark J (2016): Refining the Early Devonian time scale using Milankovitch cyclicity in Lochkovian–Pragian sediments (Prague Synform, Czech Republic). Earth and Planetary Science Letters, 455, 125-139, https://doi.org/10.1016/j.epsl.2016.09.009
Funding:
Czech Science Foundation (GACR), grant/award no. 14-18183S: Sequence stratigraphy of Devonian bioevents - sea level changes at the transition from greenhouse to icehouseworld
Coverage:
Latitude: 50.038455 * Longitude: 14.404294
Minimum ALTITUDE: 0.00 m * Maximum ALTITUDE: 172.90 m
Event(s):
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | ALTITUDE | Altitude | m | Da Silva, Anne-Christine | Geocode | |
| 2 | Magnetic susceptibility | MAGS | m3/kg | Da Silva, Anne-Christine | Kappabridge |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
1661 data points