Sedimentary Rocks GRAPHIC ORGANIZER NOTES Sedimentary Rocks Is

Sedimentary Rocks GRAPHIC ORGANIZER NOTES

Sedimentary Rocks Is when sediments of rocks, plants, or animals are cemented together, at or near the Earth’s surface.

Sedimentary Rocks Forms through 5 processes: weathering, erosion, deposition, compaction, and cementation.

Weathering Running water or wind breaks rocks or organic material into sediments (pieces of rocks, plants, animals).

Erosion Running water or wind carries away sediments.

Deposition Sediment drops out of water or wind.

Compaction Pressing of sediment together.

Cementation Dissolved minerals crystallize and glue sediments together.

Chemical Rock Formed when minerals dissolved in a solution crystallize.

Example A – Dolomite

Example B – Limestone (Chemical)

Clastic Rock Sediments squeezed together to form a rock.

Strata (Stripes) Layers in sedimentary rocks

Stratification The process called in which sedimentary rocks are arranged in layers.

Conglomerate rock composed of rounded fragments varying from small pebbles to large boulders in a cement (as of hardened clay)

Breccia a rock composed of sharp or angular fragments embedded in a fine-grained matrix (as sand or clay)

Organic Rock with remains of plants and animals forming layers; fossils

Example A – Coal

Example B – Limestone (Organic)