This table contains atmospheric CO2-estimates based on stomata retrieved in the Messel fossil pit (Grein 2010, Grein et al., 2011). It lists the original out-crop depth relative to marker beds, the depth (m) projected onto the FB2001 drill core, the age (Ma) as well as mean, maximum and minimum of the CO2 estimates. The respective plant species is indicated as well.
The data contains Fe/Ti and K/Ti ratios obtained via XRF core scanning of drill core FB2001 from the Messel fossil pit versus core depth and age. Scanning was performed at the Institute of Institute of Earth Sciences, Heidelberg University (Germany).
Statistically computed recurrence times of Fe/Ti peaks in the XRF scanning record of FB2001, reflecting siderite layers that are interpreted to reflect strong precipitation events. Upper and lower boundaries are calculated based on bootstrapping.
This table contains Mean Annual Temperatures (MAT) reconstructed using branched GDGTs obtained on core FB2001 from Messel, relative to the core depth and age. The error given reflects the calibration error. Measurements were performed at the the Senckenberg Biodiversity and Climate Centre, Frankfurt (Germany) and at the RWTH Aachen (Germany).
In selected intervals, we measured titanium and iron contents in parallel to rock magnetic parameters (Fig. 9). Titanium content is a good reflection of detrital input since minerals containing titanium are not very sensitive to dissolution. Iron, however, is rather mobile and involved in the redox history of highly porous sediments: the spike of iron observed on top of the sedimentary column (Fig. 9A) marks the redox front. We observed a strong similarity between the titanium and HIRM curves: the detrital input decreases from the late glacial to the Holocene. In ancient sediments, HIRM and titanium display similar variations with high values in glacials and low values in interglacials (Fig. 9B).