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Slate forms in low-grade metamorphic environments from a parent rock of either shale, mudstone, or siltstone.Slate was formed under low-grade metamorphic conditions—i.e., under relatively low temperature and pressure. The original material was a fine clay, sometimes with sand or volcanic dust, usually in the form of a sedimentary rock (e.g., a mudstone or shale).The best known and most commonly seen metamorphic rocks are those produced by Barrovian (also called regional) metamorphism. Beginning with a shale parent, Barrovian metamorphism produces a sequence of metamorphic rocks that goes through slate, and then through phyllite, schist, and gneiss.
What type of rock did slate form from?
Slate was formed under low-grade metamorphic conditions—i.e., under relatively low temperature and pressure. The original material was a fine clay, sometimes with sand or volcanic dust, usually in the form of a sedimentary rock (e.g., a mudstone or shale).
Is shale the parent rock of slate?
The best known and most commonly seen metamorphic rocks are those produced by Barrovian (also called regional) metamorphism. Beginning with a shale parent, Barrovian metamorphism produces a sequence of metamorphic rocks that goes through slate, and then through phyllite, schist, and gneiss.
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What is slate made from?
Slate is derived from fine-grained sediments such as mud or occasionally volcanic ash laid down millions of years ago in layers known as bedding. As the pile of sediments thickened, the original open structure of the mud was compacted into a mudstone or shale.
What is the parent rock of marble?
The presence of the foliated rock, likely slate, suggests that, before this rock metamorphosed, it was composed of limestone (the parent rock of marble) layered with small-grained sedimentary rocks, like siltstone or shale.
What is the parent rock of shale?
| Metamorphic rock | Texture | Parent rock |
|---|---|---|
| Phyllite | Foliated | Shale |
| Schist | Foliated | Shale, granitic and volcanic rocks |
| Gneiss | Foliated | Shale, granitic and volcanic rocks |
| Marble | Nonfoliated | Limestone, dolostone |
What are some parent rocks?
Parent rock can be sedimentary, igneous or metamorphic.
What is the parent rock of metamorphic rocks?
Metamorphic rocks form from heat and pressure changing the original or parent rock into a completely new rock. The parent rock can be either sedimentary, igneous, or even another metamorphic rock.
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Slate – rocks and minerals – The University of Auckland
Slate is a low grade metamorphic rock generally formed by the metamorphosis of mudstone / shale, or sometimes basalt, under relatively low pressure and …
slate | geology – Encyclopedia Britannica
slate, fine-grained, clayey metamorphic rock that cleaves, or splits, readily into thin slabs having great tensile strength and durability; some other rocks …
Metamorphic Rocks – Hyperphysics
Metamorphic Rocks ; Metamorphic rock. Texture. Parent rock. Description ; Slate, Foliated, Shale, Very fine grained ; Phyllite, Foliated, Shale, Fine-to-medium …
Slate – Wikipedia
Slate is a fine-grained, foliated, homogeneous metamorphic rock derived from an original shale-type sedimentary rock composed of clay or volcanic ash …
Parent rock and the formation of soil
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What is the parent rock of quartzite?
| Type | Metamorphic Rock |
|---|---|
| Metamorphic Type | Regional or Contact |
| Metamorphic Grade | Variable |
| Parent Rock | Quartz Sandstone |
| Metamorphic Environment | Variable grade regional or contact metamorphism along a convergent plate boundary |
What is schist parent rock?
The original parent rock (or protolith) of mica schist is shale. Phyllite could also be considered the parent rock as mica schist is a more highly metamorphosed phyllite.
What rock is shale?
shale, any of a group of fine-grained, laminated sedimentary rocks consisting of silt- and clay-sized particles. Shale is the most abundant of the sedimentary rocks, accounting for roughly 70 percent of this rock type in the crust of the Earth. Shales are often found with layers of sandstone or limestone.
What is the parent rock of sandstone?
Sandstone, the Parent of Quartzite
When the sedimentary rock sandstone is cemented together by the mineral silica, it is known as quartz sandstone. Silica, or quartz, is one of the most abundant minerals in the Earth’s crust.
Is granite the parent rock of gneiss?
Gneiss often forms from the metamorphism of granite or diorite.
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What is the parent rock of anthracite?
Anthracite Coal – Low grade (if T is too high, the coal turns to graphite), Parent Rock = bituminous coal.
What rocks parent rock is basalt?
What is Basalt? Basalt is a dark-colored, fine-grained, igneous rock composed mainly of plagioclase and pyroxene minerals. It most commonly forms as an extrusive rock, such as a lava flow, but can also form in small intrusive bodies, such as an igneous dike or a thin sill. It has a composition similar to gabbro.
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