Test Your Knowledge
Breccia: Sedimentary Rock – Pictures, Definition, Formation
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Is breccia organic or chemical or clastic?
Breccia is a clastic sedimentary rock that is composed of large (over two-millimeter diameter) angular fragments. The spaces between the large fragments can be filled with a matrix of smaller particles or a mineral cement which binds the rock together.
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Is breccia clastic?
Breccia is commonly used for clastic sedimentary rocks composed of large sharp-angled fragments embedded in a fine-grained matrix of smaller particles or mineral cement. The breccia generated by folding, faulting, magmatic intrusions, and similar forces is called tectonic breccia.
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What rock is clastic organic or chemical?
Clastic (or detrital) rocks are made of clay, silt, sand, gravel, and/or boulders. These grains are usually made of silicate minerals (quartz, feldspar, mica, clay minerals, etc.) or rock fragments because most biochemical and chemical grains (see below) do not survive chemical weathering or extensive transport.
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Is sandstone a clastic organic or chemical?
Sandstones are clastic in origin (as opposed to either organic, like chalk and coal, or chemical, like gypsum and jasper). The silicate sand grains from which they form are the product of physical and chemical weathering of bedrock.
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Is breccia clastic or non clastic?
Breccia is a clastic sedimentary rock that shaped from angular and boulder size clasts cemented or in a matrix. The angular shaped of clast show that they have not been transported from their source.
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Is breccia chemical or detrital?
| Detrital | ||
|---|---|---|
| Clastic texture (particle size) | Sediment name | Rock name |
| Coarse (> 2mm) | Gravel (rounded particles) | Conglomerate |
| Gravel (angular particles) | Breccia | |
| Medium (1/16 – 2 mm) | Sand | Sandstone |
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What rock is clastic organic or chemical?
Clastic (or detrital) rocks are made of clay, silt, sand, gravel, and/or boulders. These grains are usually made of silicate minerals (quartz, feldspar, mica, clay minerals, etc.) or rock fragments because most biochemical and chemical grains (see below) do not survive chemical weathering or extensive transport.
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Is clastic organic or chemical?
Biochemical and organic sediments are clastic in the sense that they are made from pieces of organic material that are deposited, buried, and lithified; however, they are usually classified as being chemically produced.
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What type of rock is clastic?
Clastic sedimentary rocks are the group of rocks most people think of when they think of sedimentary rocks. Clastic sedimentary rocks are made up of pieces (clasts) of pre-existing rocks. Pieces of rock are loosened by weathering, then transported to some basin or depression where sediment is trapped.
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What type of rock is organic?
Organic-rich sedimentary rocks are a specific type of sedimentary rock that contains significant amounts (>3%) of organic carbon. The most common types include coal, lignite, oil shale, or black shale.
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Are rocks organic or in organic?
There are, indeed, a handful of rocks that include organic material, an example being coal, but the vast majority are purely inorganic in origin.
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Is breccia clastic or non clastic?
Breccia is a clastic sedimentary rock that shaped from angular and boulder size clasts cemented or in a matrix. The angular shaped of clast show that they have not been transported from their source.
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Is breccia clastic or organic?
Breccia is a clastic sedimentary rock that is composed of large (over two-millimeter diameter) angular fragments. The spaces between the large fragments can be filled with a matrix of smaller particles or a mineral cement which binds the rock together.
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What is a breccia rock classified as?
| Type | Sedimentary Rock |
|---|---|
| Texture | Clastic; Coarse-grained (2 – 64 mm) |
| Composition | Quartz, Feldspar, Lithics |
| Color | Reddish brown |
| Miscellaneous | Angular clasts in a fine- to medium-grained matrix; Immature |
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What is the characteristic of breccia?
Breccia is a term most often used for clastic sedimentary rocks that are composed of large angular fragments (over two millimeters in diameter). The spaces between the large angular fragments are filled with a matrix of smaller particles and a mineral cement that binds the rock together.
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Is sandstone clastic or non clastic?
Examples of clastic sedimentary rocks are sandstone and conglomerate. Some clastic sedimentary rocks (such as shale and mudstone) are fine enough that the individual grains cannot be distinguished.
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Is sandstone organic detrital or chemical?
Detrital, or clastic – detritus, or fragments, of other rocks (e.g., sandstone); the most important constituents are quartz, calcite, clay minerals (from the weathering of feldspars), rock fragments, and feldspars.
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What rock is clastic organic or chemical?
Clastic (or detrital) rocks are made of clay, silt, sand, gravel, and/or boulders. These grains are usually made of silicate minerals (quartz, feldspar, mica, clay minerals, etc.) or rock fragments because most biochemical and chemical grains (see below) do not survive chemical weathering or extensive transport.
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Is limestone clastic organic or chemical?
Because limestone contains the remains of dead organisms, it is considered an organic sedimentary rock. There are rare chemical sedimentary rocks that form from the precipitation of calcium carbonate from ocean water.
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