Lille-Raipas

from Wikipedia, the free encyclopedia
Lille-Raipas
Struve Geodetic Arc (LILLE-REIPAS) .jpg
height 286  moh.
location Near Alta , Troms og Finnmark , Norway
Coordinates 69 ° 56 '19 "  N , 23 ° 21' 37"  E Coordinates: 69 ° 56 '19 "  N , 23 ° 21' 37"  E
Lille-Raipas (Troms and Finnmark)
Lille-Raipas
particularities Survey point of the Struve arch ; Fossil site
f6

Lille-Raipas ( North Sami Unna Ráipásaš , Little Raipas') is a mountain in the northern Norwegian province ( Fylke ) Troms og Finnmark , about five kilometers southeast of the city of Alta . The mountain is 286  moh. high and 34 forms one of the measurement points of the Struve arc (of 265) to the list of the Struve Arc 2005 UNESCO - World Heritage were taken.

geology

The mountain belongs to the Raipas group, which is part of the rock area between Alta and Kvænangen . This is part of the area of ​​the surrounding rock of the Finnmarksvidda . The Raipas group consists of a thick layer of green schist over which there is a layer of quartzite . The same types of rock are also found in the bedrock area in East Finnmark. They are 2 billion years old.

In the mountain Allen Krill found Geology - Professor at the Technical University of Science and Norway (NTNU) in Trondheim , 1999, the oldest fossils in Europe . These are 1.8 billion year old stromatolites formed by cyanobacteria and algae , assigned to the Precambrian .

use

Copper deposits were probably discovered in the mountain around 1685 . Alten Kupferbergbau operated the Raipas mine from 1836 to 1869 . Raipas and the old mine near the village of Kåfjord were the main copper mines on the Kåfjord .

See also

Web links

Individual evidence

  1. ^ Struve's Geodetic Arc. Norges verdensarv, accessed August 30, 2013 (English, Norwegian).
  2. ↑ Christopher Oftedahl: Norges geologi . Tapir Akademisk Forlag 1981.
  3. ↑ Allen Krill: Europe's oldest fossil - i Alta! Retrieved August 30, 2013 (Norwegian).
  4. ↑ Norges geologiske undersøkelse: Raipas Forekomst nr.24 i Alta (2012) commune. Malmdatabasen, accessed August 30, 2013 (Norwegian).