GEOGRAPHY Sedimentary Rocks

Sedimentary rocks are types of rock that are formed by the accumulation or deposition of mineral or organic particles at Earth's surface, followed by cementation. Sedimentation is the collective name for processes that cause these particles to settle in place..

In simple words, Sedimentary Rocks are the rock which are formed due to the pressure and heat on the dead and decayed plants and animal at the ocean depth of the ocean,The decayed plant and animal get too much pressurized thus forming sedimentary rocks.

Process of formation of sedimentary rock.

Following is a vedio to understand the sedimentary rock more briefly.

some sedimentary rocks. Co n g I o era te Rounded clasts Photo: Jar-nes St. Joh CC BY 2.0 San ds tone predorninantly coarse—grained: 2 rnr-n and larger Breccia Angular clasts Photo: R. Weller/ Cochise College predorninantly rnediurn—grained: 63 prn to 2 rnn-• Arenite: rnostly sand grains and cernent Quartz arenite (q uartz sandstone) rnore than 90% quartz Photos: R _ Weller/ Cochise College Shale Fine layering, fissile (breaks into thin layers) Photo: R- Weller/ Cochise College Feldspathic aren ite (a rkose) than 1 0% feldspar b•Vacke: rnore than fine—grained rnatrix (silt, clay) R- Weller/ Cochise College fine-grained: less than 63 urn M u ds tone No layering (breaks into blocks) PhcRo: R. Weller/ Cochise co eq.

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The Way Of Sedimentary Rock by Connor Harrigan.

PPT - Sedimentary Rock PowerPoint Presentation, free download - ID:1753939.

Fun Facts about Sedimentary Rocks. Sandstone is made from grains of sand that have melded together over time, or lithified. Sedimentary rock often contains fossils of plants and animals millions of years old. ... Limestone is often made from the fossilized remains of ocean life that died millions of years ago..

What is the colur of sedimentry rocks?. The iron may precipitate reduced (low oxidation state) minerals such as iron sulfides. So the remaining organic matter will give the sediment and resulting sedimentary rock, a dark gray or black color..

Are sedimentary rocks organic?. Organic sedimentary rocks are those containing large quantities of organic molecules . Organic molecules contain carbon, but in this context we are referring specifically to molecules with carbon-hydrogen bonds, such as materials from the soft tissues of plants and animals..

Why is petroleum mostly found in sedimentary rocks?.

How old are sedimentary rocks?. about 3.9 billion years old Earth's oldest sedimentary rocks, found in Greenland, are about 3.9 billion years old . Unusual chemical traces in these rocks may suggest that life existed when they formed.

Sedimentary rock - How it forms and the uses - Science Gr 3-5 — SteemKR.