(c) Rachaimer willow leaves in Holocene tufa
For. georolf unknown
collection
(c) Rachaimer channel in tufa
Dießen 2006
(c) Rachaimer
travertine or Kalktuffbildung Dießen 2006
travertine or Kalktuffbildung Dießen 2006
travertine Karst is formed from waters that have a high content of dissolved calcium bicarbonate. The deposition of calcium in the form of travertine (or tuff) is the reverse of the process of Karstification.
The karstification dissolves calcium carbonate (CaCO 3 ) in the presence of carbon (IV) oxide and water (carbonic acid) and calcium bicarbonate (Ca (HCO 3 ) 2), which is about 10 times as soluble in water. This process can be described with the mass action law, if a solution equilibrium is established.
kick out of such kalkgesättigtes water can thus by removing carbon (IV) oxide - either Duch release to the air or by uptake by plants (especially mosses and algae) - the balance is so disturbed, that lime precipitates. It is formed travertine or tufa, a cavity interspersed Limestone, which is often still visible plant residues (leaves shown) or snail shells, etc. contains. The highly porous rocks can be wet in mountain work well (saw), is dry but a good and a heat-insulating building block. In this he was often used.
The lime deposits on the edge or in places where water flows quickly (turbulence) and least (Fig.).
Thus arise in whole Tuffriegel valleys and over a perennial stream Tuffschwellen. In extreme cases, it may form a constantly-training falls occur (Urach waterfall). In
Dießen has in the course of the brook a trough formed of tuff, which rises about 60 cm above the surrounding level (Fig.). The brook flows not at the lowest point! (See Damm shore flow)
The valley is sealed off by a bolt out of tufa.
Diessen The valley is available as a natural monument conservation.
The karstification dissolves calcium carbonate (CaCO 3 ) in the presence of carbon (IV) oxide and water (carbonic acid) and calcium bicarbonate (Ca (HCO 3 ) 2), which is about 10 times as soluble in water. This process can be described with the mass action law, if a solution equilibrium is established.
kick out of such kalkgesättigtes water can thus by removing carbon (IV) oxide - either Duch release to the air or by uptake by plants (especially mosses and algae) - the balance is so disturbed, that lime precipitates. It is formed travertine or tufa, a cavity interspersed Limestone, which is often still visible plant residues (leaves shown) or snail shells, etc. contains. The highly porous rocks can be wet in mountain work well (saw), is dry but a good and a heat-insulating building block. In this he was often used.
The lime deposits on the edge or in places where water flows quickly (turbulence) and least (Fig.).
Thus arise in whole Tuffriegel valleys and over a perennial stream Tuffschwellen. In extreme cases, it may form a constantly-training falls occur (Urach waterfall). In
Dießen has in the course of the brook a trough formed of tuff, which rises about 60 cm above the surrounding level (Fig.). The brook flows not at the lowest point! (See Damm shore flow)
The valley is sealed off by a bolt out of tufa.
Diessen The valley is available as a natural monument conservation.
