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Article Reference Late Maastrichtian hadrosaurs from the Amur Region (Russia and China): preliminary investigations
Located in Library / RBINS Staff Publications 2016
Article Reference Latest Cretaceous elasmosaur remains from the Maastrichtian type area, Belgium and Morocco and their Palaeobiogeographical implications
Located in Library / RBINS Staff Publications 2016
Article Reference Dwarf traversodontids (Synapsida, Cynodontia) from the Late Triassic of Lorraine and Luxembourg
Located in Library / RBINS Staff Publications 2016
Article Reference Late Triassic vertebrates from Syren
Located in Library / RBINS Staff Publications 2016
Article Reference Walou Cave (Vesdre Basin, Begium). New palynological data for the Upper Pleistocene in Belgium
Located in Library / RBINS Staff Publications 2016
Article Reference Contribution de la paléobotanique a l'étude pluridisciplinaire des séquences sédimentaires dans les entrées de grottes et les abris-sous-roche en Belgique : le site de Walou
Located in Library / RBINS Staff Publications 2016
Article Reference New insight on the chronology of the Upper Palaeolithic in central and east Europe
Located in Library / RBINS Staff Publications 2016
Article Reference Climatic signature and chronology of the Late Pleistocene loess-palaeosol successions from Central and Eastern Europe
Located in Library / RBINS Staff Publications 2016
Article Reference Radiocarbon chronology and climatic signature of the middle pleniglacial loess from Danube to Yenisei: comparison with the marine and Greenland data
Located in Library / RBINS Staff Publications 2016
Inproceedings Reference A surprisingly short early Holocene humid spell inferred from remnant shorelines and palaeolake deposits in northern Arabia
Early Holocene greening of the Sahara has been inferred from many sedimentary archives (e.g. Hoelzmann et al., 2001). Likewise, over the last two decades similar reconstructions of lakes and a more humid climate have been established for the southern Arabian Peninsula (e.g. Fleitmann et al., 2007; Engel et al., 2017) and the Levant (Bar-Matthews et al., 2003). Such evidence also exists for northern Arabia (Schulz and Whitney, 1986; Crassard et al., 2013; Zielhofer et al., 2018), but is limited in sufficiently robust proxy data and chronological resolution, hampering our understanding of the scarce archaeological record of that time (Hilbert et al., 2014). In this paper, we present latest results of the ongoing DFG-funded project CLEAR, which explores the highly resolved palaeolake record of the sabkha basin in the oasis of Tayma, northern Arabia. Today only flooded episodically after rainfall events, the endorheic basin is encircled by a ring of isolated shoreline deposits in an altitudinal corridor of only a few metres, consisting almost entirely of Melanoides tuberculatus and Hydrobia sp. shells, Amphibalanus amphitrite carapaces, foraminifers, and ostracods, with minor amounts of siliciclastic sand (Engel et al., 2012; Pint et al., 2017). These deposits have recently been mapped and dated by 14C and OSL, and indicate the presence of an early Holocene lake with a depth of up to 17 m and an area of up to 22 km². They correlate with partly varved lake sediments of the central basin according to the 14C-(pollen concentrates), varve- and cryptotephra-based chronology (Dinies et al., 2015; Neugebauer et al., 2017). In the framework of CLEAR, the palaeolake sequence was subjected to detailed sedimentological, geochemical and micropalaeontological analyses (grain-size distribution, XRD, µXRF, thin- section studies, foraminifera, ostracods, diatoms, pollen, stable isotopes, C/N, lipid biomarkers). Current results indicate increasing moisture at Tayma from c. 9300 cal. yrs. BP with pronounced humid conditions only over the second half of the 9th millennium BP, represented by an annually varved sequence of aragonite-, diatom-, and clastic silt- dominated laminae. After 7950 cal. yrs. BP, aridification set in, leading to sabkha development at c. 4200 cal. yrs. BP and the accumulation of aeolian sand. The rather short period of increased moisture availability contrasts with adjacent records from southern Arabia and the Levantine region (Bar-Matthews et al., 2003; Fleitmann et al., 2007), which reflect more humid conditions over several millennia during the early to mid-Holocene. This is a contribution to the research project “CLEAR – Holocene Climatic Events of Northern Arabia” (DFG PL 535/2-1; FR 1489/5-1; EN 977/2-1); see also contribution Pint et al. (this conference) and project website https://clear2018.wordpress.com. References: Bar-Matthews, M, et al., Geochim. Cosmochim. Acta 67, 3181–3199 (2003); Crassard, R., et al., PLOS ONE 8, e68061 (2013); Dinies, M., et al., Quat. Int. 382, 293–302 (2015); Engel, M., et al., 2012, Quat. Int. 266, 131–141 (2012); Engel, M., et al., Global Planet. Change 148, 258–267 (2017); Fleitmann, D., et al., Quat. Sci. Rev. 26, 170–188 (2007); Hilbert, Y.H., et al., J. Archaeol. Sci. 50, 460–474 (2014); Hoelzmann, P., et al., Palaeogeogr. Palaeocl. 169, 193–217 (2001); Neugebauer, I., et al., Quat. Sci. Rev. 170 269–275 (2017); Pint, A., et al., J. Foram. Res. 42, 175–187 (2017); Schulz, E., Whitney, Hydrobiologia 143, 175–190 (1986); Zielhofer, C., et al., Quat. Int. 473, 120–140 (2018).
Located in Library / RBINS Staff Publications 2018