coal sedimentary yahoo

Why is coal an unusual sedimentary rock ... - Yahoo Answers

Feb 14, 2007· Best Answer: First of all coal is not an unusual sedimentary rock, it is very abundant for the time being. The following is a tutorial from the supplied web site: Coal is clearly made up of lots of compressed bits of dead plants.

Coal - definition of coal by The Free Dictionary

This metal, in fact, is the most tenacious, the most ductile, and the most malleable, and consequently suitable for all moulding operations; and when smelted with pit coal, is of superior quality for all engineering works requiring great resisting power, such as …

Sedimentary Rocks | Earth Science - Lumen Learning

Biochemical sedimentary rocks form in the ocean or a salt lake. Living creatures remove ions, such as calcium, magnesium, and potassium, from the water to make shells or soft tissue. Living creatures remove ions, such as calcium, magnesium, and potassium, from the water to make shells or soft tissue.

What type of sedimentary rock is formed from the ... - Yahoo

Dec 04, 2008· Best Answer: NOT only coal. Sedimentary rocks that are formed from living things are simply known as Biogenic sedimentary rocks. Limestone, shales and many other rocks may contain things that once lived. Coal is simply a rock that formed in sub tropical, oxygen deprived envrionments - during the Carboniferous.

Geology help!!!? | Yahoo Answers

Oct 02, 2007· Best Answer: Why are mafic minerals such as olivine and proxene rare in sedimentary rocks? mafic minerals are unstable at earth surface pressures and tempertaures, thus they weather faster. What is the difference between limestone and basalt?

Chapter 10 DEPOSITIONAL ENVIRONMENTS PART I: GENERAL

sedimentary bed that might tell you something about depositional environment: grain size grain shape grain surface texture grain fabric sedimentary structures composition (siliciclastic; carbonate, evaporite, coal, chert) fossils (body fossils, trace fossils) stratification sequence sediment-body geometry/architecture

The source of materials which eventually formed our vast ...

Apr 27, 2009· The source of materials which eventually formed our vast coal and oil deposits came from__1___ buried in __2___ rocks all over the earth. 1. volcanic ash. plant and animal matter. rocks 2. metaphoric. sedimentary. igneous.

Activity 5: Depositional Environments - Bryce Canyon ...

Students will be introduced to the environments in which different sedimentary rocks form and relate these environments to the history of the rock. They will present histories from sequences of rock layers. Sedimentary rocks can be read like a book. Each layer of sedimentary rock is like a chapter ...

How Was Coal and Oil Formed? | Kids Answers

Huge masses of plant debris were rapidly buried in what thus became coal beds, and organic matter generally was dispersed throughout the many catastrophically deposited sedimentary rock layers. The coal beds and fossiliferous sediment layers became deeply buried as the Flood progressed.

Coal: Anthracite, Bituminous, Coke, Pictures, Formation, Uses

What is Coal? Coal is an organic sedimentary rock that forms from the accumulation and preservation of plant materials, usually in a swamp environment. Coal is a combustible rock and, along with oil and natural gas, it is one of the three most important fossil fuels.Coal has a wide range of uses; the most important use is for the generation of electricity.

how do you distinguish between sedimentary and metamorphic ...

Oct 06, 2010· Best Answer: Sedimentary coal is low grade, while metamorphic coal is high grade.

What type of sedimentary environment will you find coal in ...

Jun 11, 2009· Burial by sedimentary loading on top of the peat swamp converts the organic matter to coal Rock Salt is a chemical sedimentary rock that forms from the evaporation of ocean or saline lake waters. It is also known by the mineral name "halite". It is rarely found at Earth's surface, except in areas of very arid climate.

Why is coal found in layers? (usually)? | Yahoo Answers

Dec 02, 2007· Best Answer: coal is trees that ages ago had fallen over, and sort of, rotted by the swampiness around them. Stuff carried aorund by the sea settled on the bottom, and as the layers got thicker, the pressure caused the stuff to turn into sedimentary rock.

What coal is sedimentary rock - Answers.com

All coal is metamorphic and sedimentary rock. When coal forms it is made out of ancient organic material, and over a long period of time the coal is buried under sediments and water.

Is coal sedimentary rock? - Quora

Coal is a sedimentary rock deriving from fossilisation of ancient plants derived usually from the Permian era for the Southern Hemisphere and the Carboniferous era for the northern.

How coal is formed - ZME Science

bituminous coal is a dense sedimentary rock, generally of a high-quality. " steam coal " is a transition type between bituminous and anthracite. anthracite is the highest rank of coal.

What Kind of rock is this Igneous Metamorphic or ... - Yahoo

May 24, 2007· amphibolite, quartzite, anthracite coal = metamorphic rocks scoria, rhyolite, pumice = volcanic igneous rocks limestone, conglomerate= sedimentary rocks obsidian is an amorphous mineral which is one the components of volcanic rocks and roughly represents the chemistry of magma within the volcano *magma chamber*

sedimentary rocks.. rocks? | Yahoo Answers

Nov 13, 2010· Best Answer: 1) 2) Sedimentary rocks Sedimentary rocks are those made of grains of preexisting rocks or organic material that, in most cases, have been eroded, deposited, compacted, and cemented together.

Clastic rock - Wikipedia

Clastic rocks are composed of fragments, or clasts, of pre-existing minerals and rock. A clast is a fragment of geological detritus, chunks and smaller grains of rock broken off other rocks by physical weathering. Geologists use the term clastic with reference to sedimentary rocks as well as to particles in sediment transport whether in suspension or as bed load, and in sediment deposits.

What are Some Uses of Sedimentary Rocks in ... - Yahoo

Apr 27, 2010· Best Answer: Iron ore isn't a sedimentary rock. It's iron ore. Coal is obviously burned in power plants to generate electricity. That's about it. Well, I guess you could go really old-school and have a coal-fired furnace in your house.

What type of sedimentary rock is formed from the remains ...

Dec 04, 2008· Best Answer: NOT only coal. Sedimentary rocks that are formed from living things are simply known as Biogenic sedimentary rocks. Limestone, shales and many other rocks may contain things that once lived. Coal is simply a rock that formed in sub tropical, oxygen deprived envrionments - during the Carboniferous.

Basics--Table of Depositional Environments

The table below includes specific environments where various types of sediments are deposited and common rocks, structures, and fossils that aid in deducing the depositional environment from examining a sedimentary rock outcrop.

what are the soures of coal? | Yahoo Answers

May 17, 2006· Best Answer: (m) COAL Coal is a fossil fuel--a sedimentary organic rock that contains more than 50 percent carbonaceous material by weight and is composed largely of carbon, hydrogen, oxygen, nitrogen, and sulfur, with small amounts of other materials ranging from aluminum to zirconium.

Why is coal classified as a sedimentary rock? - Quora

The primary difference between coal and other sedimentary rocks is that by definition "rock" is an aggregate of minerals (minerals being inorganic solid material of specific chemical formula and crystaline structure), whereas coal is made of plant material primarily.

What is coal? | Yahoo Answers

Sep 30, 2007· Coal is a readily combustible black or brownish-black rock. It is a sedimentary rock, but the harder forms, such as anthracite coal, can be regarded as metamorphic rocks because of later exposure to elevated temperature and pressure. It is composed primarily of carbon along with assorted other elements, including sulfur.

What is the common sedimentary rock that forms ... - Yahoo

Feb 20, 2014· What is the common sedimentary rock that forms from swamps? Coal, sandstone, breccia, or conglomerate? Follow . 2 answers 2. Report Abuse. ... Do people know that along with oil, natural gas and coal are also hoaxes or have the wrong explanation? Trending.

Granite, shale, coal, and limestone are commonly known as ...

Oct 28, 2007· Best Answer: rocks its a strange question granite=igneous rock shale=metamorphic rock coal=sedimentary or metamorphic rock limestone=sedimentary rock

Coal - Wikipedia

Coal is a combustible black or brownish-black sedimentary rock, formed as rock strata called coal seams. Coal is mostly carbon with variable amounts of other elements; chiefly hydrogen, sulfur, oxygen, and …