Data for: Chronology and eccentricity phasing for the Early Turonian greenhouse (~93-94 Ma): constraints on astronomical control of the carbon cycle. Paleoceanography and Paleoclimatology.

Published: 6 April 2021| Version 1 | DOI: 10.17632/tndz4r9ppv.1
Contributors:
Jiri Laurin,
,
Stanislav Čech,
,
,
Andrea Svobodová

Description

Here we present geochemical and geophysical data obtained from four boreholes in the Bohemian Cretaceous Basin (central Europe). These data cover the Lower Turonian interval (~93 and 94 Myr ago) and were used to develop a refined chronology and interpret the phasing of orbital eccentricity in this interval. BCB-LTUR-Dataset 1: Carbon isotope ratios in bulk organic matter (d13Corg,‰ VPDB) and organic carbon contents (TOC, wt%), borehole 4523-A. Latitude: 50.540556 Longitude: 14.229444 Minimum depth: 9.92 m Maximum depth: 219.9 m Date: 1.3. – 30.3. 2016 BCB-LTUR-Dataset 2: Carbon isotope ratios in bulk organic matter (d13Corg, ‰ VPDB), borehole 4530-A Latitude: 50.355278 Longitude: 14.3625 Minimum depth: 18.25 m Maximum depth: 87.3 m Date: 15.9. 2017 – 19.7. 2018 BCB-LTUR-Dataset 3a: Downhole resistivity log (LL7 laterolog, ohmm), borehole J-719670 Latitude: 50.589722 Longitude: 14.232778 Minimum depth: 320 m Maximum depth: 535.5 m Date: 1.1. 1982 Additional information: Depth scale is provided in two versions: 1 = original depth scale; 2 = detrended depth scale after removal of linear trend in sedimentation rate BCB-LTUR-Dataset 3b: Downhole resistivity log (LL7 laterolog, ohmm), borehole J-650704 Latitude: 50.593333 Longitude: 14.283333 Minimum depth: 330 m Maximum depth: 530 m Date: 1.1. 1980 Additional information: Depth scale is provided in two versions: 1 = original depth scale; 2 = detrended depth scale after removal of linear trend in sedimentation rate BCB-LTUR-Dataset 4: Greyscale density (8-bit), borehole 4523-A Latitude: 50.540556 Longitude: 14.229444 Minimum depth: 130 m Maximum depth: 216 m Date: 10.3. 2020 - 22.4. 2020 BCB-LTUR-Dataset 5: Si/Al ratios in the bulk sediment (mol/mol), borehole Bch-1 Latitude: 50.315056 Longitude: 15.295008 Minimum depth: 340.05 m Maximum depth: 404.83 m Date: 31.7. 2018 – 7.2. 2019

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