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What type of metamorphic rock is composed of mineral grains arranged in parallel layers?
Foliated.
What metamorphic rock type has flat layers?
Foliated rock
What type of rock forms in layers?
That would be sedimentary rock, and (honorable mention) occasionally metamorphic rock.
What is a type of metamorphic rock in which mineral grains grow and rearrange but do not form layers?
schist
Which type of pluton is completely parallel to the rock layers into which it intrudes?
A sill is a type of pluton that is completely parallel to the rock layers into which it intrudes. Sills are formed when magma is injected between pre-existing rock layers and then solidifies. The resulting igneous rock body is typically flat-lying and can be found sandwiched between the surrounding rock layers.
What is a type of metamorphic rock in which mineral grains recrystallize but do not form layers?
Those would be non-foliated metamorphic rocks, like quartzite and marble.
What is a tabular concordant intrusive structure?
A tabular concordant intrusive structure refers to a type of igneous intrusion where the orientation of the intrusive body is parallel to the existing layering or structures in the surrounding rock. This results in the intrusion appearing as a tabular or sheet-like feature that runs parallel to the rock layers. The intrusive body is typically discordant to the sedimentary or metamorphic layers but its orientation is concordant.
Which type of unconformity exists between parallel layers of sedimentary rock?
A disconformity exists between parallel layers of sedimentary rock. This is when there is a gap in the rock record represented by a horizontal surface separating younger strata from the older ones.
If you found a rock with flat mineral grains which rock would it be?
It is likely a type of metamorphic rock, such as schist or gneiss, which form under high temperature and pressure conditions leading to the alignment of mineral grains into flat layers.
A type of metamorphic rock in which mineral grains grow and rearrange but do not form layers?
Non-foliated metamorphic rock, such as marble or quartzite, is characterized by the absence of visible layering or banding. The mineral grains in these rocks recrystallize and grow in a uniform manner, without forming distinct layers like in foliated rocks. This type of metamorphism typically occurs under conditions of high pressure and temperature without the presence of directed stress.
What type of rock is slate?
A metamorphic rock.
Which is not a type of unconformity?
Angular unconformity is not a type of unconformity. The three main types of unconformities are nonconformity, disconformity, and paraconformity. A nonconformity occurs when sedimentary rock is deposited on igneous or metamorphic rock, disconformity is an erosion surface between parallel sedimentary layers, and paraconformity is a buried erosion surface within sedimentary layers.
