Asked By: Angel Rodriguez Date: created: Aug 06 2021

What type of rocks form from layers of sand and mud

Answered By: Harold White Date: created: Aug 09 2021

Most of the rocks exposed at the surface of Earth are sedimentary–formed from particles of older rocks that have been broken apart by water or wind.

The gravel, sand, and mud settle to the bottom in rivers, lakes, and oceans..

Asked By: Raymond Henderson Date: created: May 01 2022

What are the 3 major types of rocks

Answered By: Samuel Carter Date: created: May 02 2022

There are three kinds of rock: igneous, sedimentary, and metamorphic. Igneous rocks form when molten rock (magma or lava) cools and solidifies. Sedimentary rocks originate when particles settle out of water or air, or by precipitation of minerals from water.

Asked By: Carl Harris Date: created: Nov 03 2021

What are the 5 examples of sedimentary rocks

Answered By: Kevin Garcia Date: created: Nov 03 2021

Examples include: breccia, conglomerate, sandstone, siltstone, and shale. Chemical sedimentary rocks form when dissolved materials preciptate from solution. Examples include: chert, some dolomites, flint, iron ore, limestones, and rock salt.

Asked By: Jeremiah Mitchell Date: created: Jul 27 2021

Is shale a sedimentary rock

Answered By: Connor Smith Date: created: Jul 29 2021

Shale is an easily broken, fine-grained sedimentary rock composed of clastic grains with sizes <0.0625 mm, clay, and organic matter with shaley or thinly laminar bedding (Table 10.2). Shale is widespread in nature, making up about 55% of sedimentary rocks.

Asked By: Austin Barnes Date: created: Dec 08 2021

What type of rock is formed by heat and pressure

Answered By: Nathan Martinez Date: created: Dec 11 2021

Metamorphic rocksMetamorphic rocks form when rocks are subjected to high heat, high pressure, hot mineral-rich fluids or, more commonly, some combination of these factors.

Asked By: Cyrus Peterson Date: created: Dec 24 2021

Which rock layer is the oldest

Answered By: Joseph Thomas Date: created: Dec 25 2021

bottom layerThe bottom layer of rock forms first, which means it is oldest. Each layer above that is younger, and the top layer is youngest of all. This ordering is relative because you cannot be sure exactly when each layer formed, only that each layer is younger then the one below it.

Asked By: Diego Carter Date: created: Oct 21 2021

Is siltstone well sorted

Answered By: Austin Green Date: created: Oct 23 2021

*Characteristics – fine-grained siltstone and shale, which are well stratified (layered) commonly, form in the central portion, whereas some well-sorted sandstone is also formed along the margins.

Asked By: Charles Torres Date: created: Jul 08 2021

What is the color of siltstone

Answered By: Herbert Bennett Date: created: Jul 11 2021

Siltstone Colors: Siltstone occurs in a wide variety of colors. It is usually gray, brown, or reddish brown. It can also be white, yellow, green, red, purple, orange, black, and other colors.

Asked By: Kyle Davis Date: created: Mar 12 2022

Is coal a sedimentary rock

Answered By: Wallace James Date: created: Mar 14 2022

Because coal undergoes physical and chemical changes as a result of increased heat, there is sometimes a misconception that coal is a metamorphic rock. Coal is a sedimentary rock. Coal is altered through biological and burial-thermal processes into different ranks.

Asked By: Jesus Wright Date: created: Jan 22 2022

What type of rock is deposited by water

Answered By: Jesus Alexander Date: created: Jan 24 2022

sedimentary rockWater plays a role in the formation of most sedimentary rock. It is one of the main agents involved in creating the minerals in chemical sedimentary rock. It also is a weathering and erosion agent, producing the grains that become detrital sedimentary rock.

Asked By: Adam Coleman Date: created: Oct 03 2021

What sedimentary rocks are composed of mud

Answered By: Cody Collins Date: created: Oct 03 2021

Shale is a rock made mostly of clay, siltstone is made up of silt-sized grains, sandstone is made of sand-sized clasts, and conglomerate is made of pebbles surrounded by a matrix of sand or mud.

Asked By: Antonio Alexander Date: created: Apr 14 2021

What type of rock is siltstone

Answered By: Nathaniel Reed Date: created: Apr 15 2021

Siltstone, hardened sedimentary rock that is composed primarily of angular silt-sized particles (0.0039 to 0.063 mm [0.00015 to 0.0025 inch] in diameter) and is not laminated or easily split into thin layers.

Asked By: Edward Wright Date: created: Jun 13 2022

What does siltstone feel like

Answered By: Chase Gray Date: created: Jun 13 2022

We cannot see the difference between these rocks, but it turns out that siltstone feels gritty when nibbled or rubbed against a tooth whereas claystones feel smooth. If you find a claystone, you know that it accumulated in a very quiet environment with almost still water.

Asked By: Steven Howard Date: created: Sep 17 2021

What are five characteristics within a sedimentary rock

Answered By: Jeffery Bryant Date: created: Sep 17 2021

Sedimentary FeaturesBedding. Bedding is often the most obvious feature of a sedimentary rock and consists of lines called bedding planes, which mark the boundaries of different layers of sediment. … Graded beds are common when a sediment is being deposited by a slow‐moving current. … Fossils. … Desiccation cracks and ripple marks.

Asked By: Cody Bennett Date: created: Jun 08 2022

What type of rock is clay or mud

Answered By: Lucas Washington Date: created: Jun 11 2022

sedimentary rocksMudrocks. Mudrocks are fine grained sedimentary rocks consisting of mostly silt and clay size fragments. They are sometimes called argillites. Because of their small grain size, they are difficult to study, even with the petrographic microscope.

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