Impact of Geomorphological Variables in Weighing the Lithological Influence on Geochemical Composition of Stream and Overbank Sediments: A Regression Model for the Žumberak Area (NW Croatia)
Item
Title (Dublin Core)
Impact of Geomorphological Variables in Weighing the Lithological Influence on Geochemical Composition of Stream and Overbank Sediments: A Regression Model for the Žumberak Area (NW Croatia)
Description (Dublin Core)
<div>The two multiple regression models were compared on the assumption</div><div>that the geochemical composition of the alluvial material is basically originally derived from the bedrock lithology of a drainage basin of the Žumberak Area (NW Croatia). The latter was integrated with both stream sediment and overbank sediment geochemical data via the two essentially different approaches as regards the catchment basin geomorphological data: (1) as the relative area of influence representing a portion of the catchment basin occupied by a certain rock type; (2) as the relative “line” of influence representing a narrow tract of a certain rock type traversed by the majority of perennial streams which form the active stream network. The model comparison</div><div>was accomplished on the basis of the goodness-of-fit test for both experimental designs and for the same set of data. The most important result of these experiments highlights the linear approach as the more appropriate model for ascertaining the lithological influence on the analyzed sample media. This can be explained by the stronger erosive</div><div>and transportational power of the water which flows in the well defined channel network in contrast to the unconcentrated surface runoff in the interfluvial area, coupled with the buffering effects of rich slope and riparian vegetation, which is characteristic of the Žumberak heartland.</div>
Creator (Dublin Core)
Zoran Peh
Slobodan Miko
Subject (Dublin Core)
Drainage basin
Channel–reach morphology
Sediment supply
Lithology
Geochemical composition
Stream sediment
Overbank sediment
Multiple regression analysis
Žumberak
Croatia
Geology
QE1-996.5
Publisher (Dublin Core)
Croatian Geological Survey
Date (Dublin Core)
2003-12-01T00:00:00Z
Type (Dublin Core)
article
Identifier (Dublin Core)
1330-030X
1333-4875
10.4154/GC.2003.13
https://doaj.org/article/dce1ca26c29c496eb4c31b50863f158c
Source (Dublin Core)
Geologia Croatica, Vol 56, Iss 2, Pp 199-214 (2003)
Language (Dublin Core)
EN
Relation (Dublin Core)
http://www.geologia-croatica.hr/ojs/index.php/GC/article/view/225
https://doaj.org/toc/1330-030X
https://doaj.org/toc/1333-4875
Provenance (Dublin Core)
Journal Licence: CC BY