Raidlgraben

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Raidlgraben
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location Fritztal , State of Salzburg
Mountains Hochgründeck , Fritztal Mountains , Salzburg Slate Alps
Geographical location 47 ° 25 '36 "  N , 13 ° 15' 2"  E Coordinates: 47 ° 25 '36 "  N , 13 ° 15' 2"  E
Raidlgraben (State of Salzburg)
Raidlgraben
rock Grauwackenzone / Werfener layers
particularities Mineral location
Raidlgraben
Water code AT : A4311457
River system Danube
Drain over Fritzbach  → Salzach  → Inn  → Danube  → Black Sea
River basin district Danube to Jochenstein
source at the Hochgründeck
47 ° 23 ′ 2 ″  N , 13 ° 16 ′ 6 ″  E
Source height nominal  1598  m above sea level A.
Mouth height 592  m above sea level A.
Height difference 1006 m
Bottom slope 17%
length nominally 6 km
Communities Bischofshofen

The Raidlgraben is a small side valley of the Fritztal in the state of Salzburg .

The Raidlgraben - Bach and Talung have the same name - rises on the Hochgründeck  ( 1827  m above sea level ) at around 1600 meters. It then separates the ridge of the Breitspitz in the east from the ridge of the Buchberg in the west, and the Bischofshofener villages of Winkl and Alpfahrt . To the west of Pöham the stream flows after about 6 kilometers at 592  m above sea level. A. from the left into the Fritzbach .

A forest path leads along the lower section of the trench, the upper section is impassable, but some forest paths cross.

The Raidlgraben is particularly known as a mineral discovery site. The Hochgründeck belongs to the Grauwackenzone , medium to old Paleozoic slate , 300–500 million years old, which is inserted here as a narrow strip between the Central and Limestone Alps. From a line from Bischofshofen to Alpfahrt, the mountain foot already belongs to the Werfen layers , which represent the basement of the limestone Alps . This transition zone is considered to be particularly rich in raw materials and minerals (between Mühlbach and Hüttau , copper has been mined for centuries). Here in the Raidlgraben there are good sites for lazulite (blue patch), a magnesium aluminum phosphate that is usually pale blue to green translucent, but can be found here in a bright, light blue variety. The site has been known since time immemorial, for example the Carolino Augusteum reported about it as early as 1842 . In addition to other minerals, quartz crystals with special inclusions were also found. In the early 19th century (documented 1820), gypsum was also mined here on a small scale .

Individual evidence

  1. ↑ a b c SAGIS online → Water → Waters → Water network and stationing
  2. ↑ Raidlgraben ( "Radel ditch"), Fritz Bach valley, Pöham, Throwing, Salzburg, Austria , mindat.org
  3. ↑ a b Raidlgraben , Mineralienatlas (with further references)
  4. ↑ Dr. Wagner: Geographical-mineralogical notes from the Herzogthome Salzburg . In: Journal of the Carolino-Augusteum Museum . Linz February 10, 1842, p. 16 , col. 2 ( limited preview in Google Book Search - continued, article begins January 20, p. 6).
  5. ↑ Jaroslav Hyršl, Gerhard Niedermayr: Mysterious world: Inclusions in quartz . Verlag Bode, 2003, Barite, p. 146 , col. 2 (English).
  6. ^ Leopold Weber: Handbook of the deposits of ores, industrial minerals and energy resources of Austria . Verlag Geologische Bundesanstalt, 1997, p. 16.