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Bergbau Fohnsdorf / Miningsite Fohnsdorf EarthCache

Hidden : 7/16/2009
Difficulty:
1 out of 5
Terrain:
1 out of 5

Size: Size:   other (other)

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Geocache Description:



Based on the changed guidlines, it isn´t any longer necessary to ad a photo to your log!!

This cache shows you the history of mining in Fohnsdorf. It´s the deapest lignite coal mine on the world.


The history of coal mining in Fohnsdorf reaches back into the year 1670. The first mining was a small surface mining. Over the years the mining site grows to the deepest brown (lignite) coal mine on the world. The deepest stack reaches to a deep from 985m. The formation of the brown coal was 65 million years ago. This time was called tertiary (tertiär). The twin shaft tower with its 3.600ps engine is the most powerful shaft tower until this day. It´s a part of the mining museum. In the museum you can see old instruments, tools and lorrys which was used in the mine. Because the extraction of the coal get to expensive the mine was closed in 1977.


This carbon deposit pushed the industry in the late 1880th. steel mills have been founded like the "Steirische Edelstahlwerke"


Coal is a readily combustible black or brownish-black sedimentary rock normally occurring in rock strata in layers or veins called coal beds. The harder forms, such as anthracite coal, can be regarded as metamorphic rock because of later exposure to elevated temperature and pressure. It is composed primarily of carbon along with variable quantities of other elements, chiefly sulfur, hydrogen, oxygen and nitrogen.


Coal was formed from layer upon layer of annual plant remains accumulating slowly that were protected from biodegradation by usually acidic covering waters that gave a natural antiseptic effect combating microorganisms and then later mud deposits protecting against oxidization in the widespread shallow seas - mainly during the Carboniferous period - thus trapping atmospheric carbon in the ground in immense peat bogs that eventually were covered over and deeply buried by sediments under which they metamorphosed into coal. In this manner, over time, the chemical and physical properties of the plant remains (believed to mainly have been fern-like species antedating more modern plant and tree species) were changed by geological action to create a solid material.


Coal, a fossil fuel, is the largest source of energy for the generation of electricity worldwide, as well as one of the largest worldwide anthropogenic sources of carbon dioxide emissions. Gross carbon dioxide emissions from coal usage are slightly more than those from petroleum and about double the amount from natural gas. Coal is extracted from the ground by mining, either underground or in open pits.


Now I'd like to ask one question: In front of the museum there is a wodden hall. Above the great entrance of the hall is a name of a person. What ist the first name of the person?


Send me the answer but don´t wait for the permission. If the answer is wrong I´ll contact you.
Send me the answer with the "send massage" link in my profile.


The museum can be reached by car. There is a parkingspace. Terrain is flat. The answer can be found on the presentation board in front of the museum. It is not necessary to enter the museum.




~~~ happy caching ~~~


Additional Hints (No hints available.)