Geologia Croatica, Vol. 54 No. 1, 2001.
Izvorni znanstveni članak
A Factor Model of the Relationship between Stream Sediment Geochemistry and Adjacent Drainage Basin Lithology, Medvednica Mt., Croatia
J. Halamić
Z. Peh
D. Bukovec
S. Miko
L. Galović
Sažetak
A mathematical model is constructed to relate the geochemical composition of recent stream material in a number of catchments on Medvednica Mt. to a broadely defined bedrock lithology which represents the parent material for the former. It is a system based factor model, which synthesizes eight lithological and 25 geochemical variables (major, minor and trace elements), reducing their relationships to six geologically meaningful factors. Five of these divulged a definite relationship between geochemistry and lithology. These are labelled as follows: factor of metamorphic rocks; factor of igneous rocks; factor of Tertiary carbonate rocks; factor of parametamorphic rocks and factor of Mesozoic carbonate rocks. Two lithologies; the Mesozoic clastic rocks and Quaternary sediments showed no clear association to any of the factors. Alternatively, one of the factors (F2) can be identified as “non-lithologic” indicating other, perhaps anthropogenic, contributions to the stream sediment geochemical composition.
Ključne riječi
Stream sediment; Lithology; Drainage basins; Geochemical composition; Factor analysis; Medvednica Mt.; Croatia
Hrčak ID:
3859
URI
Datum izdavanja:
28.6.2001.
Posjeta: 1.459 *