GOLD-BEARING DEPOSITS OF THE KRASZÓWKA STREAM (KACZAWSKIE FOOTHILLS)
Journal Title: Biuletyn Państwowego Instytutu Geologicznego - Year 2010, Vol 439, Issue 439
Abstract
Samples from alluvia of the Kraszówka Stream (Kaczawskie Foothills) were subjected to petrographic analysis. After this research, gold-bearing deposits of the Holocene Kraszówka alluvia have been diagnosed. Gold occurrence was reported all along the Kraszówka Stream, but its large concentration has been localized by the author within the middle part of the stream. Gold has been identifiedwithin 18 of 25 samples collected. Most of gold grains take the foliate-plate and cementation-popular forms and show various types of mechanical deformation. Palaeogene “white” quartz gravels and gold-bearing glaciofluvial sands of the South Polish Glaciations are probably the main source of placer gold. Chemical processes of gold dissolving and reprecipitation took an important part in the origin of placer gold, leading to the formation of so-called “new” gold. In the light of gold-placer renewable theory, there is a good chance to identify zones of economic placer gold concentration in alluvia of the Kraszówka Valley.
Authors and Affiliations
Paweł URBAŃSKI
Keywords
Related Articles
- EP ID EP64633
- DOI -
- Views 63
- Downloads 0
TEMPERATURE CHANGE IN THE PROCESS OF SPONTANEOUS OUTFLOW OF GAS-BEARING GROUNDWATERS
The article provides a short description of a solution for spontaneous outflow of gas-bearing groundwaters from vertical boreholes. A two-phase flow of gas-water mixture in extraction pipes and chokes was adopted for the...
INFILTRATION CAPACITY OF WEATHERING RESIDUALS IN GNEISES OF WIELKA SOWA MASSIF (MIDDLE SUDETES)
The paper presents the results of the hydrogeological investigations carried out in the Sowie Góry massif in order to estimate infiltration capacity of the weathering cover of gneisses. Based on fields works there were e...
TIGHT GAS RESERVOIRS IN POLAND
The main tight gas reservoir formation in Poland is the Rotliegend eolian sandstone in the northern part of the Fore-Sudetic Homocline and adjacent areas located further north and east. The Lower Carboniferous sandstone...
Zasięg pojezierza z interglacjału eemskiego w Polsce a pozycja stratygraficzna lądolodów zlodowaceń środkowopolskich
Na mapie zestawiono 261 wybranych stanowisk interglacjału eemskiego na tle głównych stref marginalnych lądolodów skandynawskich w Polsce. Obecność stanowisk osadów jeziornych z interglacjału eemskiego w strefie wysoczyz...
ORE MINERALIZATION IN ULTRAMAFICS FROM THE MNICH RIDGE FROM WESTERN PART OF THE BRASZOWICE–BRZEŹNICA MASSIF (LOWER SILESIA)
Ultramafic rocks of the Braszowice–Brzeznica massif consist of harzburgites, dunites and lherzolites that are serpentinised in various degree. These rocks are regard as upper part of ultramafic sequence of the Sudetic op...