0
What else can I help you with?
What term is used to describe metamorphic rocks with a banded texture?
The two main groups of metamorphic rocks are foliated and non-foliated. Foliated metamorphic rocks show layering and parallel alignment of flat mineral crystals (ex. micas). The "banded texture in metamorphic rocks" is one of the specific kinds of foliated textures. It is referred to as gneissic banding. Essentially, this texture displays alternating layers of light and dark minerals. These rocks are called gneiss- the light bands form from quartz and feldspars, while the dark ones form from ferromagnesian minerals.
Why do the crystals in gneiss line up in bands?
rast ts
How is gneiss similar to granite?
Granite is an igneous rock and gneiss is a metamorphic rock.
Can igneous rock like granite can be formed into a metamorphic rock like gneiss?
Heat And Pressure
Is gneiss metamorphic?
A gneiss is a metamorphic rock. Metamorphic rocks are created by the alteration of rocks by heat and pressure. Therefore, a gneiss may be created from an igneous rock in which case it would be called an orthogneiss.
How can gneiss be identified?
A banded metamorphic rock formed from the re-heating and re-pressuring of granite and similar igneous rocks.
A metamorphic rock formed form granite?
Gneiss
What are the similarities between brick and metamorphic rock?
Both igneous and metamorphic rocks are formed by pressure and some kind of heat
Is gneiss a metamorphic sedimentary or igneous?
Gneiss is a banded metamorphic rock.
What geologic process change granite igneous rock into gneiss metamorphic rock?
Granite can be changed into gneiss through the process of metamorphism, where heat and pressure alter the mineral structure of the rock. This process causes the minerals in the granite to recrystallize, forming distinct banding and foliation characteristic of gneiss. The original minerals in the granite are reorganized into new minerals such as mica, quartz, and feldspar, giving gneiss its unique appearance.
Is granite gneiss marble limestone shale or basalt an igneous rock?
These are sedimentary rocks. Sandstone is made of compressed grains of rock and sand. Shale is made of compressed bits of mud and clay. Limestone is made of compressed pieces of forms of calcium carbonate.
What metamorphic rock is for from granite?
gneiss
Is gneiss an example of igneous rock?
No. Gneiss is a metamorphic rock.
Granite changes to?
Granite is a type of igneous rock that forms from the cooling of molten magma deep within the Earth's crust. Over time, geological processes such as heat and pressure can metamorphose granite into gneiss, a high-grade metamorphic rock with distinct layering or banding.
