Clastic rock - Wikipedia, the free encyclopedia
|
|
Clastic rocks are composed of fragments, or clasts , of pre-existing rock. The term is most commonly, but not uniquely, applied to sedimentary rocks. Clastic metamorphic rocks include breccias form...
en.wikipedia.org/wiki/Clastic_rock
|
|
|
Breccia is a clastic sedimentary rock similar to conglomerate that can form in a variety of ways. ... The rock, breccia, has very few uses. However, the word "breccia" is used as a trade name for a group of dimension stone products with a broken, angular pattern. Names such as "Breccia Oniciata",
|
geology.com/rocks/breccia.shtml
geology.com/rocks/breccia.shtml
|
|
|
|
Structure: Bedding not usual, though in some types of breccia bedding is apparent in the matrix. Fossils rare. Mineralogy: The fragments may be of any type of igneous, metamorphic or sedimentary rock. The matrix usually consists of silt or sand cemented by calcite or silica.
|
www.rocks-rock.com/breccia.html
www.rocks-rock.com/breccia.html
|
|
|
|
Breccia is one of the major types of sedimentary rocks. ... Breccia is a rock made of smaller rocks, like conglomerate. But breccia contains sharp, broken clasts while conglomerate has smooth, round clasts. (more below)
|
geology.about.com/od/rocks/ig/sedrockindex/rocpicbrecci...
geology.about.com/od/rocks/ig/sedrockindex/rocpicbreccia.htm
|
|
|
The Rock - BRECCIA ... Sedimentary Rock Type: Clastic ... Breccias are a relatively common clastic sedimentary rock. They form in many different violent situations where host rocks are broken and not transported far from their source.
|
www.galleries.com/Rocks/BRECCIA.htm
www.galleries.com/Rocks/BRECCIA.htm
|
|
Igneous breccia dykes may contain a wide range of rock fragments sampled during magma ascent and thus, provide information about the composition of rocks at deeper levels. Volcanic breccias containing lithic (rock) and vitric (glass and pumice ) fragments form near subaerial volcanic vents.
|
www.encyclopedia.com/doc/1G2-3437800089.html
|
|
breccia Rock formed by the cementation of sharp-angled fragments in a finer matrix of the same or different material. It is formed either inside the Earth by movements of the crust, from scree slopes, or from volcanic material. ... (Including press releases, facts, information, and biographies)
|
www.encyclopedia.com/doc/1O142-breccia.html
www.encyclopedia.com/doc/1O142-breccia.html
|
|
Sandstone is an arenaceous sedimentary rock composed mainly of feldspar and quartz and varies in colour (in a similar way to sand), through grey, yellow, red, and white. Sandstones are often relatively soft and easy to work which therefore make them a common building and paving material.
|
stone-network.com/petrology/sandstone.html
|
|
Coral reefs often contain extensive areas of limestone breccia, formed of detached pieces of rock which have been dislodged from the See also: ... Additional information and Comments...
|
encyclopedia.jrank.org/BOS_BRI/BRECCIA.html
encyclopedia.jrank.org/BOS_BRI/BRECCIA.html
|
|
