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. 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
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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.
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
|#||Name||Short Name||Unit||Principal Investigator||Method||Comment|
|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)|
484 data points