0
Still curious? Ask our experts.
Chat with our AI personalities
Beau
Maxine
FranFoliated metamorphic rocks have a layered or banded appearance due to the alignment of mineral grains, while unfoliated metamorphic rocks do not have a layered structure. Foliated rocks form under directed pressure, while unfoliated rocks form under non-directed pressure. Examples of foliated rocks include schist and gneiss, while examples of unfoliated rocks include marble and quartzite.
Add your answer:
Earn +20 pts
What is the difference between foliated and non-foliated?
Foliated rocks have a layered or banded appearance due to the alignment of minerals, such as in the case of schist or gneiss. Non-foliated rocks lack this layered structure and often have a more uniform texture, like in the case of marble or quartzite.
What foliated metamorphic rock is texturally intermediate between slate and schist?
Phyllite is a foliated metamorphic rock that is texturally intermediate between slate and schist. It exhibits a greater degree of metamorphism than slate but not as much as schist, resulting in a medium-grain texture with a glossy sheen.
What is the difference between schist and marble?
Schist is a metamorphic rock with medium to coarse grain size that typically forms from the metamorphism of shale or mudstone. Marble is a metamorphic rock primarily composed of calcite or dolomite minerals that forms from the metamorphism of limestone. Schist has a foliated texture, while marble has a non-foliated texture.
What are the different types of metamorphic rock and how do they differ from each other?
Metamorphic rocks are classified into two main types: foliated and non-foliated. Foliated rocks, like slate and schist, have distinct layers or bands due to the alignment of minerals during formation. Non-foliated rocks, such as marble and quartzite, lack this layering and have a more uniform appearance. The differences between these types of metamorphic rocks lie in their mineral composition, texture, and the conditions under which they were formed.
List examples of foliated and nonfoliated rocksexplain the difference between the two types of metamorphic rocks?
Foliated rocks: gneiss, schist, slate - These rocks have a layered or banded appearance due to the alignment of minerals caused by pressure during metamorphism. Nonfoliated rocks: marble, quartzite, hornfels - These rocks do not have a layered structure and exhibit more isotropic mineral alignment. The difference lies in the presence (foliated) or absence (nonfoliated) of layers or banding caused by differential pressure during metamorphism.
