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Pyroclastics are rocks formed from the cooling and solidification of material ejected during explosive volcanic eruptions, and are so primarily igneous.
However, this material is often transported an redeposited by processes not directly related to volcanism. When this occurs, the resulting material may be considered sedimentary. Rocks that form from this transported volcanic material are called volcaniclastic rocks.
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∙ 10y ago
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Rocks formed from weathered debris from preexisisting rocks are called?
They are called clastic sedimentary rocks.
Are sedimentary rocks classified tofoliated sedimentary rocks?
Metamorphic rocks are classified by foliation or lack there of, not sedimentary rocks. They are classified into Clastic Sedimentary, and Chemical Sedimentary.
Can igneous and sedimentary both form fossils?
In certain cases some igneous rocks can show the impression of a living organism, as in the case of trees being encased in lava flows or pyroclastic flows preserving the shape of a human as in Pompeii. Normally however, fossils are found in sedimentary rocks.
Are sedimentary rocks formed from fragments of other rocks chemical sedimentary rocks?
No. The rocks you describe are clastic or detrital sedimentary rocks.
Are there any fossils in sedimentary rocks?
Yes all fossils occur in sedimentary rocks or rocks that began as sedimentary rocks.
Rocks formed from weathered debris from preexisisting rocks are called?
They are called clastic sedimentary rocks.
Is a rock a pyroclastic material?
Some rocks are pyroclastic but most are not.
Are sedimentary rocks classified tofoliated sedimentary rocks?
Metamorphic rocks are classified by foliation or lack there of, not sedimentary rocks. They are classified into Clastic Sedimentary, and Chemical Sedimentary.
Can igneous and sedimentary both form fossils?
In certain cases some igneous rocks can show the impression of a living organism, as in the case of trees being encased in lava flows or pyroclastic flows preserving the shape of a human as in Pompeii. Normally however, fossils are found in sedimentary rocks.
Are sedimentary rocks formed from fragments of other rocks chemical sedimentary rocks?
No. The rocks you describe are clastic or detrital sedimentary rocks.
What rocks have a pyroclastic texture?
Two kinds of rocks that have a pyroclastic texture are breccia and tuffs. Some other rocks with this texture are volcanic ash and pumice.
What has the author Sam Boggs written?
Sam Boggs has written: 'Petrology of sedimentary rocks' -- subject(s): Sedimentary Rocks 'Petrology of sedimentary rocks' -- subject(s): Rocks, Sedimentary, Sedimentary Rocks
Are there any fossils in sedimentary rocks?
Yes all fossils occur in sedimentary rocks or rocks that began as sedimentary rocks.
Are some rocks metamorphic AND sedimentary?
No. If a sedimentary rock has undergone even a low grade metamorphism, it is considered a metamorphic rock.
Are magma and rock both pyroclastic materials?
No. Magma is molten rock that is beneath earth's surface. When it erupts it can form lava or pyroclastic material. Although pyroclastic material can form rocks, most rocks are not from pyroclastic material.
Are volcanic rocks sedimentary?
No. Volcanic rocks are igneous (although not all igneous rocks are volcanic). Sedimentary rocks are made of sediment naturally cemented together. However, volcanic (or extrusive igneous) rocks can be eroded into sediment, which can be cemented, compacted, or otherwise become sedimentary rock such as sandstone or conglomerate. It is then not considered igneous.
What rocks are formed when sediments are compressed compacted and cemented togerther?
Sedimentary rocks.
