Wyniki wyszukiwania - BazTech

1

Parametry hydrogeologiczne skał drenowanych przez stare wyrobiska górnicze w rejonie Miedzianki i Ciechanowic (Sudety Zachodnie)

Wąsik M., Wąsowski M.

Gospodarka Surowcami Mineralnymi

|

2015

|

T. 31, z. 2

173--190

PL

Artykuł prezentuje wyniki badań parametrów hydrogeologicznych, wykonanych na terenach nieczynnych kopalń Cu, Ag i As w Miedziance i Ciechanowicach (Sudety Zachodnie). W profilu geologicznym wydziela się luźne osady czwartorzędowe oraz pokrywy zwietrzelinowe leżące na skałach krystalicznych masywu karkonosko-izerskiego oraz kaczawskiego łupkowo-zieleńcowego pasma fałdowego. Stwierdzono, że nieczynne wyrobiska górnicze decydują o wysokości potencjału zasobności. Najwyższe wartości tego parametru (powyżej 50 tys. m3) uzyskano dla rejonów najbardziej pociętych wyrobiskami górniczymi. Nie zaobserwowano wpływu wyrobisk górniczych na wielkości pozostałych parametrów skał. Oznaczenia wartości współczynników filtracji, porowatości efektywnej, odsączalności grawitacyjnej i wodochłonności wykonane w sąsiedztwie oraz w oddaleniu od wyrobisk bardziej zależą od litologii, lokalnej tektoniki oraz stopnia zwietrzenia. [...]

EN

The paper presents the results of the hydrogeological parameter investigations carried out in the areas of abandoned polymetallic mines in Miedzianka and Ciechanowice (Western Sudetes). Their geological profile is a mixture of separated loose Quaternary deposits and wheathering covers lying on the crystalline rocks of the Izera-Karkonosze Massif and Kaczawa greenstone-and-slate-fold belt. It was found that the abandoned mining excavations determine the resources potential. The highest values of this parameter (above 50 thousand m3) were obtained for the areas that had been mostly cut by mining excavations. No impact of the mine excavations on other rock parameters (hydraulic conductivity, storage coefficient, effective porosity, water-storage capacity) was found. The determinations made in the vicinity and at a distance from the excavations depend more on lithology, local tectonics and weathering grade. [...]

2

Relikty górnictwa i hutnictwa rejonu złoża Miedzianka-Ciechanowice jako obiekty geoturystyczne

Siuda R., Borzęcki R.

Przegląd Geologiczny

|

2014

|

Vol. 62, nr 8

397--402

EN

The historical deposit of polymetallic ore in Miedzianka-Ciechanowice is located in the Rudawy Janowickie Mts. This deposit includes lens-forming contact-metasomatic ores and hydrothermal veins related to the Karkonosze granite. The ore assemblages are abundant in Cu, and more rarely in Pb, Ag, As, Fe, and others elements, were mined in Miedzianka-Ciechanowice from the early Middle Ages to the mid 20th century. This paper presents descriptions the selected objects of mining and smelting activity in the Miedzianka-Ciechanowice area. Old dumps, adits, shafts and ruins of copper smelter are a unique assemble of relicts related to the development of the local mining. The authors propose to create a geotourist route in this area.

3

Ore mineralization in the Miedzianka area (Karkonosze-Izera Massif, the Sudetes, Poland): new information

Mochnacka K., Oberc-Dziedzic T., Mayer W., Pieczka A.

Mineralogia

|

2012

|

Vol. 43, iss. 3/4

155--178

EN

The Miedzianka mining district has been known for ages as a site of polymetallic ore deposits with copper and, later, uranium as the main commodities. Although recently uneconomic and hardly accessible, the Miedzianka ores attract Earth scientists due to the interesting and still controversial details of their ore structure, mineralogy and origin. Our examination of the ore mineralization from the Miedzianka district was based exclusively on samples collected from old mining dumps located in the vicinity of Miedzianka and Ciechanowice, and on samples from the only available outcrop in Przybkowice. In samples from the Miedzianka field, chalcopyrite, pyrite, galena, bornite, chalcocite, digenite, arsenopyrite, magnetite, sphalerite, tetrahedrite-tennantite, bornite, hematite, martite, pyrrhotite, ilmenite, cassiterite and covellite are hosted in quartz-mica schists and in coarse-grained quartz with chlorite. In the Ciechanowice field, the ore mineralization occurs mainly in strongly chloritized amphibolites occasionally intergrown with quartz and, rarely, with carbonates. Other host-rocks are quartz-chlorite schist and quartzites. Microscopic examination revealed the presence of chalcopyrite, pyrite, sphalerite, galena, tetrahedrite-tennantite, bismuthinite, native Bi, arsenopyrite, löllingite, cassiterite, cobaltite, gersdorffite, chalcocite, cassiterite, bornite, covellite, marcasite and pyrrhotite. Moreover, mawsonite and wittichenite were identified for the first time in the district. In barite veins cross-cutting the greenstones and greenschists in Przybkowice, we found previously-known chalcopyrite, chalcocite and galena. The composition of the hydrothermal fluids is suggested to evolved through a series of consecutive systems characterized, in turn, by Ti-Fe-Sn, Fe- As-S, Fe-Co-As-S, Cu-Zn-S and, finally, Cu-Pb-Sb-As-Bi compositions.