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 exhibitspískovec vápnitý,jemnozrnný, jeden kus, jádro g3622horninová brekcie, jeden kus g3598 vápenec slezská jedn. -tithon, jeden kus g3265 manganokalcit, jeden kus g3600 brekciovitá struktura žíly, jeden kus g3973 brekcie kryst. agr. sideritu, jeden kus g4171 brekc. žilná textura cinoplenu, jeden kus g4266 vápenec, jeden kus g4433 křída, jeden kus g4476 meandrovité stopy po lezení, dva kusy g4569 brekcie - semtínská, pět kusů g4581 konvolutní zvrstvení, jeden kus g4591 pískovec jemnozrnný, jeden kus g4530 brekcie - kimberlitoidní, jeden kus, vrtné jádro vrt T30 g4656 prachovec, karbon, jeden kus, vrt. jádro g4695 křída, jeden kus g4699 pískovec- vápnitý, jeden kus, vrtné jádro g4707 diatomit - vráskatý, jeden kus g4714 vápenec - organogenní, jeden kus - vrt. jádro g4885 stromatopora- valoun z kerbonu, tři kusy g4894
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Virtual museum of the Czech Geological Survey, www.geology.cz, (C) Czech Geological Survey, 2011, v.0.99 [13.12.2011]