Preprint Article Version 1 This version is not peer-reviewed

Morphometric Characteristics, Shapes and Provenance of Holocene Pebbles from the Sava River Gravels (Zagreb, Croatia)

Version 1 : Received: 30 January 2020 / Approved: 30 January 2020 / Online: 30 January 2020 (14:48:11 CET)

How to cite: Barudžija, U.; Velić, J.; Malvić, T.; Trenc, N.; Matovinović Božinović, N. Morphometric Characteristics, Shapes and Provenance of Holocene Pebbles from the Sava River Gravels (Zagreb, Croatia). Preprints 2020, 2020010371 (doi: 10.20944/preprints202001.0371.v1). Barudžija, U.; Velić, J.; Malvić, T.; Trenc, N.; Matovinović Božinović, N. Morphometric Characteristics, Shapes and Provenance of Holocene Pebbles from the Sava River Gravels (Zagreb, Croatia). Preprints 2020, 2020010371 (doi: 10.20944/preprints202001.0371.v1).

Abstract

Morphometric analysis of Holocene pebbles from the Sava River gravels, in Zagreb alluvial aquifer system (NW Croatia), revealed distribution of their shapes along 30 km long observed watercourse. Limestones, dolomites and sandstones are determined as major (> 4%), and effusive magmatics, cherts and tuffs as minor lithotypes of the pebbles (up to 4%). Their distributions indicate mainly distant Alpine provenance for carbonate (limestones and dolomites) pebbles and local input for sandstones and minor lithotypes, laterally from the Samoborska gora and Medvednica Mts. Carbonates have predominately disc and sphere shapes, implying also their mainly distant sources. Scattered distributions of pebble shapes (sphere, disc, blade and rod) for sandstones and minor lithotypes indicate multiple sources, some of them probably local. Original sedimentary environments for main pebble lithotypes are tentatively interpreted from their flatness ratios, indicating predominant lake shore environments, followed by moraine and riverbed.

Subject Areas

Quaternary; Holocene; alluvial sediments; Sava River; gravels; morphometry; Zagreb; Croatia

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