EPSC 201 Study Guide - Final Guide: Anticline, Bridle, Syncline
11 Jul 2013
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Epsc201 2006 final exam review section 5&6: name three sedimentary structures and explain how they form. There is a large number of grains present, for instance quartz sand. The weight of water forces the sediment to pack together. The warm groundwater moves in-between the spaces of the sediment, and cools as it moves through the cold sediment. The ions in the solution will precipitate (solidfy out of solution) as the water cools. The ions are only dissolved because the water is warm. For example, sio2 (quartz) will precipitate out as the groundwater is cooled in-between the sediment. This precipitated silica joined together all the claustic sediments. These are extremely variable in size, and poorly sorted. Once the glacier picks up the material, it is just moved along, and not subjected to weathering. This sandy material was exposed to the atmosphere, and was dried out. Similar formations can be proven to have been exposed to the environment.
