REAL

Saharan dust deposition in the Carpathian Basin and its possible effects on interglacial soil formation.

Varga, György and Cserháti, Csaba and Kovács, János and Szalai, Zoltán (2016) Saharan dust deposition in the Carpathian Basin and its possible effects on interglacial soil formation. Aeolian Research, 22. pp. 1-12. ISSN 1875-9637

This is the latest version of this item.

[img] Text
Varga_et_al_2016AR.pdf
Restricted to Repository staff only

Download (2MB)

Abstract

Several hundred tons of windblown dust material are lifted into the atmosphere and are transported every year from Saharan dust source areas towards Europe having an important climatic and other environmental effect also on distant areas. According to the systematic observations of modern Saharan dust events, it can be stated that dust deflated from North African source areas is a significant constituent of the atmosphere of the Carpathian Basin and Saharan dust deposition events are identifiable several times in a year. Dust episodes are connected to distinct meteorological situations, which are also the determining factors of the different kinds of depositional mechanisms. By using the adjusted values of dust deposition simulations of numerical models, the annual Saharan dust flux can be set into the range of 3.2–5.4 g/m2/y. Based on the results of past mass accumulation rates calculated from stratigraphic and sedimentary data of loess–paleosol sequences, the relative contribution of Saharan dust to interglacial paleosol material was quantified. According to these calculations, North African exotic dust material can represent 20–30% of clay and fine silt-sized soil components of interglacial paleosols in the Carpathian Basin. The syngenetic contribution of external aeolian dust material is capable to modify physicochemical properties of soils and hereby the paleoclimatic interpretation of these pedogene stratigraphic units.

Item Type: Article
Subjects: Q Science / természettudomány > QE Geology / földtudományok
Depositing User: Dr. György Varga
Date Deposited: 31 Aug 2018 10:24
Last Modified: 31 Aug 2018 10:24
URI: http://real.mtak.hu/id/eprint/83080

Available Versions of this Item

Actions (login required)

Edit Item Edit Item