Shanahan, T. M., McKay, N. P., Hughen, K. A., Overpeck, J. T., Otto-Bliesner, B., Heil, C. W., King, J., Scholz, C. A. and Peck, J.: The time-transgressive termination of the African Humid Period, Nature Geoscience, 8(2), 140–144, doi:10.1038/ngeo2329, 2015.

The time-transgressive termination of the African Humid Period

"Thermo Scientific® Trace gas chromato- graph equipped with a Rxi-5ms column (30 m 0.25 mm, film thickness 1 mm) and a programmable temperature vaporizing (PTV) injector operated in solvent split mode with an evaporation tem- perature of 60 C. The GC was connected via a GC Isolink with a pyrolysis furnace (at 1400 C) via a Conflo IV interface to a Del- taVPlus isotope ratio mass spectrometer. The Hþ3 -factor was determined daily to test linearity and accounted for 6.1 ppm mV1 on average. Reference peaks of H2 were co-injected between n- alkanoic acid peaks during the course of a GCeIRMS run; two of these peaks were used for standardization of the isotopic analysis, while the remainders were treated as unknowns to assess preci- sion. Except for the case of co-elution, precision of these replicates was better than 0.6‰. The data were normalized to the VSMOW/ SLAP hydrogen isotopic scale by comparing with an external stan- dard containing 15 n-alkane compounds (C16 to C30) with known dD values obtained from A. Schimmelmann, Bloomington. Indiana University,"

Check inferred material. Should be lake water or soil water. Indicate amount effect in climate variable field. Check:isotopeInterpretation1_name: 'rainfall amount' should be 'P_isotope' if inferred from P_isotope?? G. Falster

The average monthly dD of precipitation in the interior of West Asia is correlated with average monthly precipitation at two meteoro- logical stations located 1365 km to the west and 390 km to the east of the Neor peat mire at the same latitude (Fig. 6).

Transition from the most positive dD values during the Younger Dryas to the most negative dD values during the early Holocene, followed by a return to more positive values during the middle to late Holocene indicate that moisture availability, moisture source, or most likely a combination of both varied between these time periods, with the wettest interval during the early Holocene.