Weijers, Johan W H (2007): Methylation index of Branched Tetraethers (MBT) and Cyclization ratio of Branched Tetraethers (CBT), annual mean air temperature and soil pH of sediment core GeoB6518-1 in the Congo River basin [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.615247, Supplement to: Weijers, Johan W H; Schefuß, Enno; Schouten, Stefan; Sinninghe Damsté, Jaap S (2007): Coupled Thermal and Hydrological Evolution of Tropical Africa over the Last Deglaciation. Science, 315(5819), 1701-1704, https://doi.org/10.1126/science.1138131
Always quote citation above when using data! You can download the citation in several formats below.
Abstract:
We analyzed the distribution of branched tetraether membrane lipids derived from soil bacteria in a marine sediment record that was recovered close to the Congo River outflow, and the results enabled us to reconstruct large-scale continental temperature changes in tropical Africa that span the past 25,000 years. Tropical African temperatures gradually increased from ~21° to 25°C over the last deglaciation, which is a larger warming than estimated for the tropical Atlantic Ocean. A direct comparison with sea-surface temperature estimates from the same core revealed that the land-sea temperature difference was, through the thermal pressure gradient, an important control on central African precipitation patterns.
Project(s):
Coverage:
Latitude: -5.588300 * Longitude: 11.221700
Date/Time Start: 2000-06-20T15:23:00 * Date/Time End: 2000-06-20T15:23:00
Minimum DEPTH, sediment/rock: 0.03 m * Maximum DEPTH, sediment/rock: 6.03 m
Event(s):
GeoB6518-1 * Latitude: -5.588300 * Longitude: 11.221700 * Date/Time: 2000-06-20T15:23:00 * Elevation: -962.0 m * Recovery: 7.41 m * Location: Congo Fan * Campaign: M47/3 * Basis: Meteor (1986) * Method/Device: Gravity corer (Kiel type) (SL) * Comment: CC: olive mud
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | DEPTH, sediment/rock | Depth sed | m | Geocode | ||
| 2 | AGE | Age | ka BP | Geocode | ||
| 3 | Methylation index of branched tetraethers | MBT | Weijers, Johan W H | Calculated, see reference(s) | ||
| 4 | Cyclization ratio of branched tetraethers | CBT | Weijers, Johan W H | Calculated, see reference(s) | ||
| 5 | pH | pH | Weijers, Johan W H | |||
| 6 | Temperature, annual mean | MAT | °C | Weijers, Johan W H | see reference(s) |
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
484 data points