Palaeoclimatic record from a loess-soil profile in northeastern Bulgaria-II. Correlation with global climatic events during the Pleistocene

Details Palaeoclimatic record from a loess-soil profile in northeastern Bulgaria-II. Correlation with global climatic events during the Pleistocene Palaeoclimatic record from a loess-soil profile in northeastern Bulgaria-II. Correlation with global climatic events during the Pleistocene

Aug 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999geoji.138..533j&link_type=abstract

Geophysical Journal International, Volume 138, Issue 2, pp. 533-540.

Astronomy and Astrophysics

Astronomy

8

Loess/Palaeosol Sediments, Palaeoclimate, Rock Magnetism

Scientific paper

Magnetic susceptibility (chi) variations and the behaviour of the ratio of susceptibility to saturation magnetization (chi/J_s) along the loess/palaeosol section at Koriten (NE Bulgaria) are used to deduce climatic changes during the Pleistocene in southeastern Europe. A good correlation of susceptibility variations with the astronomically tuned oxygen isotope record from ODP site 677 enables us to propose a more precise dating of the upper part of the Bulgarian loess complex. Close correspondence between susceptibility and delta^1^8O records demonstrates the global significance of the palaeoclimatic signal recorded, although differences in relative amplitudes of chi and chi/J_s and delta^1^8O create difficulties in making quantitative estimates of the climatic humidity in the past. The role of local factors affecting the palaeoclimatic mineral magnetic record deduced from the profile studied in Bulgaria is discussed.

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