EESA06H3 Lecture Notes - Lecture 5: Banded Iron Formation, Clastic Rock, Evaporite
Document Summary
Source>process>product = sediments (ions in sol. and animal shells)>deposited(or precipitated out of solution or cemented)>sedimentary rocks! -deposition eg (when a river meets a ocean, it loses energy and can no longer hold onto the sediments and deposits it) Sed. rock eg. = limestone (can be formed in two ways at coral reefs and by deposition) Compaction (sediments are compacted by the weight of the other sediments on top of it) Cementation (something cements the sediments together eg: silica or calcite) Eg. at a beach you would probably nd sandstone (lithi ed sand) Eg. in the deep ocean, you would probably nd clay or silt which would lithi ed to a shale/siltstone (mudstone) Clastic = broken sediments (bits of other rocks) =>makes clastic sed. rocks. Nonclastic = biological or chemical processes that deposit sediments which turn into rocks. Clastic sediments are moved by water, wind and glaciers.
