網頁Coarse-grained sediment and poorly sorted rocks are usually found nearer to the source of sediment, while fine sediments are carried farther away. In a rapidly flowing mountain stream, you would expect to see boulders and pebbles. In a lake fed by the stream, there should be sand and silt deposits.

網頁2022/5/6 · Sedimentary rocks contain information about what was occurring on earth’s surface at the place and time the sediments were deposited. In some cases sedimentary rocks contain fossils, which provide information about what was living at a certain place and time on earth. There are two main groups of sedimentary rocks: chemical and clastic.

網頁Sedimentary rocks are the ones that are formed on or near the Earth's surface. As a result, it differs from metamorphic and igneous rocks, which are formed deep beneath the Earth. Erosion, weathering, dissolution, precipitation, and lithification are the most important geological processes that result in the production of these rocks.

網頁If you are using the printed version of this OER, access the quiz for section 5.2 via this QR Code. 5.3 Sedimentary rocks Sedimentary rock is classified into two main categories: clastic and chemical. Clastic or detrital sedimentary rocks are made from pieces of bedrock, sediment, derived primarily by mechanical weathering. ...