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Posted on April 1, 2022 (Updated on July 9, 2025)

What do hydrothermal solutions contain?

Regional Specifics

Hydrothermal solutions are sodium-calcium chloride brines with additions of magnesium and potassium salts, plus small amounts of many other chemical elements. The solutions range in concentration from a few percent to as much as 50 percent dissolved solids by weight.

What is meant by foliated metamorphic rock?

Foliated Metamorphic Rocks:

(Foliated means the parallel arrangement of certain mineral grains that gives the rock a striped appearance.) Foliation forms when pressure squeezes the flat or elongate minerals within a rock so they become aligned.

What is foliated and Nonfoliated metamorphic rocks?

​Foliated metamorphic rocks​ exhibit layers or stripes caused by the elongation and alignment of minerals in the rock as it undergoes metamorphism. In contrast, ​nonfoliated metamorphic rocks​ do not contain minerals that align during metamorphism and do not appear layered.

What are the examples of foliated metamorphic rocks?

Foliated Metamorphic Rocks

Types of foliated metamoprhic rocks include slate, schist, and gneiss.

Whats the definition of foliated?

Definition of foliated

1 : composed of or separable into layers a foliated rock. 2 : ornamented with foils or a leaf design.

What is a foliated metamorphic rock made from shale?

Slate is a foliated metamorphic rock that is formed through the metamorphism of shale. It is a low-grade metamorphic rock that splits into thin pieces.

What is a foliated rock with gneissic banding composed of feldspar mica and quartz?

Texture

Texture Characteristics Rock Name
foliated (banded) thin layers of mica Schist
foliated (banded) thick layers of quartz, feldspar, and mica Gneiss
non-foliated (massive) welded quartz sandstone Quartzite
non-foliated (massive) sugary to course crystals, fizzes in HCl acid Marble

Which of the following best explains how foliated metamorphic rocks form?

Which of the following best explains how foliated metamorphic rocks form? By increased pressure. Which of the following best explains why rocks can be used to interpret the geologic past? Different types of rocks form in different types of environments.

What is regional metamorphism?

Regional Metamorphism. Regional metamorphism is metamorphism that occurs over broad areas of the crust. Most regionally metamorphosed rocks occur in areas that have undergone deformation during an orogenic event resulting in mountain belts that have since been eroded to expose the metamorphic rocks.

Can igneous rocks be foliated?

Igneous rocks can become foliated by alignment of cumulate crystals during convection in large magma chambers, especially ultramafic intrusions, and typically plagioclase laths. Granite may form foliation due to frictional drag on viscous magma by the wall rocks.

Does contact metamorphism produce foliated rocks?

Contact metamorphism produces non-foliated (rocks without any cleavage) rocks such as marble, quartzite, and hornfels. In the diagram above magma has pushed its way into layers of limestone, quartz sandstone and shale.

Which of the following is an example of non foliated rock?

Overview. Nonfoliated metamorphic rocks lack foliated texture because they often lack platy minerals such as micas. They commonly result from contact or regional metamorphism. Examples include marble, quartzite, greenstone, hornfel, and anthracite.

Which type of rock is non-foliated metamorphic rock?

Non-Foliatied Texture

Marble, quartzite, and soapstone are examples of non-foliated metamorphic rocks.

Which type of rock is non-foliated metamorphic rock Brainly?

Answer: Some examples of non-foliated metamorphic rocks are marble, quartzite, and hornfels. Marble is metamorphosed limestone.

Which of the following metamorphic rocks is not foliated?

marble

Some examples of non-foliated metamorphic rocks are marble, quartzite, and hornfels. Marble is metamorphosed limestone. When it forms, the calcite crystals tend to grow larger, and any sedimentary textures and fossils that might have been present are destroyed.

What does foliated mean quizlet?

What does foliated mean? Foliated means that the minerals in a metamorphic rock are aligned in sheets or bands (like stripes if colors contrast)

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