Ukraine, Kotsiubiiv, Kotsiubiiv O & B Theatre

0
0
  • Neo Kotsiubiiv (Нео Коцюбіїв)'s avatar Artist
    Neo Kotsiu...
  • DDG Model
    Artistic
  • Access
    Public
  • Created
    2yrs ago
  • Try

Prompt

Travertine is a sedimentary rock formed by the chemical precipitation of calcium carbonate minerals from fresh water, typically in springs, rivers, and lakes; that is, from surface and ground waters. In the broadest sense, travertine includes deposits in both hot and cold springs, including the porous, spongy rock known as tufa, and also the cave features known as speleothems (which include stalactites and stalagmites). Calcrete, which is calcium minerals deposited as a horizon in the soil profile, is not considered a form of travertine. Travertine is often defined in a more narrow sense as dense rock, sometimes massive but more commonly banded or with a fibrous internal structure, deposited in hot springs. In this more narrow sense, travertine is distinct from speleothems and tufa. Travertine is sometimes also defined by its mode of origin, as rock formed by inorganic precipitation of calcium carbonate minerals onto a surface following exchange of carbon dioxide between the atmosphere and groundwater. Calcrete, lake marls, and lake reefs are excluded from this definition, but both speleothems and tufa are included.

Comments


Loading Dream Comments...

Discover more dreams from this artist