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This project aims to characterize, map, analyze and date recently discovered loess-palaeosol sequences from NE Armenia. These sequences have proved to be especially rewarding because of their thickness (up to 45 m) and the presence of diagnostic tephra layers. The project seeks to derive a standard profile for NE Armenia and thus for the Lesser Caucasus. We will use luminescence technologies to date the loess sections, environmental magnetism to understand soil development, mineralogy to constrain provenance and weathering-potential, and terrestrial Mollusca and biomarkers to evaluate different vegetation formations.
The data compilation includes the first occurrence of G. huxleyi and other species of Gephyrocapsa as revealed by Quaternary sediment samples from the world oceans. This new synthesis includes previously published data, all with rigorous relationships of their emergence events with marine isotope stages based on good quality oxygen isotope stratigraphy and/or astronomical tuning from each sediment core.
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