12.11.2013 Aufrufe

Projektbericht - Geologische Bundesanstalt

Projektbericht - Geologische Bundesanstalt

Projektbericht - Geologische Bundesanstalt

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Ü-LG-32-33/2011<br />

Fig. 1: General overview of the documented mine sites in Austria.<br />

Most of the data were compiled from the archives of<br />

the Geological Survey, mining authorities and some<br />

mining companies on map scales of 1:5,000 to<br />

1:10,000. The use of large scale compilations allows<br />

a topographical representation of detailed surface<br />

information of the mine sites (adits, galleries, shafts,<br />

open pits, waste dumps, tailing ponds e.g.).<br />

Underground mining areas are mapped as outline of<br />

the underground workings, so far documented in<br />

mine maps.<br />

Accurate up to date verifications are based on aerial<br />

photo and laser scan analysis, combined with<br />

additional field work in selected mining areas. For<br />

financial reasons the field survey was restricted to<br />

the relevant larger deposits in Austria. So many of<br />

the entries in the inventory – especially data<br />

concerning small scale mine sites – are represented<br />

by information on a historic level without recent field<br />

verification.<br />

The mining information system (Fig. 2) is based on<br />

the SQL Server © Database tables, several ArcGIS ®<br />

layers with polygon and point data, georeferenced<br />

images and a scan archive with documents (pdf)<br />

and maps (tiff, jpg).<br />

The GIS Database consists of 3 SDE (Spatial Data<br />

Engine) layers:<br />

• mining areas (over 4,500 polygons)<br />

• waste dump deposits (over 7,500 polygons)<br />

• adits and shafts (over 15,000 points).<br />

Each of the geodatabase tables contains a unique<br />

key identifier to provide a connection to the attribute<br />

database.<br />

The database attribute information consists of data<br />

primarily focussed on the following description:<br />

• locality (coordinates, location name, political<br />

and geographical unit)<br />

• mineral deposit (ore, industrial minerals,<br />

coals)<br />

• mining history<br />

• geology (tectonic and stratigraphic unit,<br />

chronostratigraphic age)<br />

• mineralogy (minerals linked to IMAS list)<br />

• chemical characterization of mineralization<br />

and host rocks<br />

• results of geochemical analysis<br />

• literature.<br />

The application for data input, database query and<br />

reporting has been written using MS Access ® Visual<br />

Basic for Applications (VBA).<br />

There are some stand alone database applications<br />

which are also connected to the Inventory of<br />

abandoned mine sites. The connection is based<br />

either on ID (unique identifier) or GIS location.<br />

Some of them are the “Mine Mapping Information<br />

System of Austria” (ZBKV), IRIS (the “Interactive<br />

Raw Material Information System”) and the<br />

“Metallogenetic Map of Austria 1:500,000”. The<br />

combined GIS and database analysis provides an<br />

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