Gja
Gjá is the word for ravine or crevice in the Icelandic language and can be found in terms such as Almannagjá , Stóragjá Grjótagjá or Hrafnagjá, which are among the most notable crevasses in Iceland . One of these gjás separates the North American and Eurasian plates . In geology , the word for the crevasses frequently encountered in Iceland was adopted for the cracks in the Central Ozeoan depression .
Shifts due to tension forces, a plaice from the other push away, the volcanic crust, caused by stretching and expansion plans until it breaks completely. The gjás then extend a few kilometers down to the magma chamber, from which liquid lava rises when the pressure is present. As an igneous vents, they form elongated volcanoes , which in turn bury all traces of expansion tectonics.
Individual evidence
- ↑ Information at dict.cc
- ^ Sabine Baring-Gould: Iceland: its scenes and sagas , Oxford 2007, p. Liv
- ^ Claude Riffaud / Xavier Le Pichon: Expedition "Famous". 3000 meters below the Atlantic , Cologne 1977, p. 281