Izvorni znanstveni članak
Gold in the Drava and Mura Rivers - Geological Genesis and Mineralogical Analysis
Vladimir Bermanec
; Prirodoslovno-matematički fakultet, Zagreb
Ladislav Palinkaš
; Prirodoslovno-matematički fakultet, Zagreb
Marin Šoufek
; Hrvatski prirodoslovni muzej, Zagreb
Vladimir Zabec
; Hrvatski prirodoslovni muzej, Zagreb
Sažetak
Gold panning from recent and old river and stream deposits is one of the oldest forms of mining, dating back to the pre-metal ages of the development of civilisation (Copper and Iron Ages). The reasons should be sought in the direct use of gold without the knowledge of the more complex technologies of obtaining pure metal. The separation of heavy minerals in watercourses is carried out by the simple natural process of separation of lighter mineral fractions by the water current. The procedure of gold panning as used by man is none other than copying this natural process, with a few interesting variations using the available tools. This paper provides a short history of gold panning on the Drava River, and a comprehensive analysis on the geological genesis of gold deposits and the mineralogical composition of the Drava River gold.
Ključne riječi
Drava River gold; alpine deposits; mineralogical composition; geological structure
Hrčak ID:
126277
URI
Datum izdavanja:
1.6.2014.
Posjeta: 2.943 *