Sediments consolidated
The consolidated sediments are deposits which were formed by secondary sedimentation of previously weathered rocks and redeposition of their fragments, and/or by chemical and biochemical precipitation from solutions. Later, they have been consolidated during a diagenesis. During diagenesis following processes leading to consolidation are in operation: compaction, cementation, recrystallization, intrastratal solution, metasomatism, and authigenesis. The intensity of diagenesis depends mostly on the depth of burial, hydrostatic and oriented pressure of surrounded rocks, on temperature, solution activity and some additional factors. The transformation of sand into sandstone serves as one of examples of consolidation during diagenetic processes.
List of exhibitsfavosites - valoun, jeden kus g4895valoun, tři kusy g4897 valoun, tři kusy g4898 favosites - valoun, dva kusy g4899 slínovec, jeden kus - vrt. jádro g4999 diatomit - páskovaný, jeden kus g5011 diatomit - "savý papír", tři kusy g5012 favosites - valoun, čtyři kusy g5015 favosites - valoun, tři kusy g5016 vápenec,sladkovod.s gastropody, jeden kus g5024 křemenec (slepencovitý charakter), dva kusy g5062 křemenec (slepencovitý charakter), jeden kus, vrtné jádro g5063 křemenec (slepencovitý charakter), jeden kus, vrtné jádro g5065 křemenec hrubozrnný, jeden kus, vrtné jádro g5068 křemenec s příměsí hr. křemenů, jeden kus, vrtné jádro g5070 křemenec, jeden kus, vrtné jádro g5072 dolomit - žilovina, jeden kus g5116 pískovec - kaolinický, jeden kus, vrtné jádro g5202 diatomit, jeden kus g5006 diatomit, jeden kus g5007 |