Table of Contents
What is peridotite composed of?
Peridotite, a coarse-grained, dark-coloured, heavy, intrusive igneous rock that contains at least 10 percent olivine, other iron- and magnesia-rich minerals (generally pyroxenes), and not more than 10 percent feldspar.
What is characteristic of peridotite?
Peridotite is a very dense, coarse-grained, olivine-rich, ultra- mafic intrusive rock. It is noted for its low silica content, and contains very little or no feldspar ( orthoclase, plagioclase). It is a common component of oceanic lithosphere, and is derived from the upper mantle.
What is the parent rock of peridotite?
Peridotites have two primary modes of origin, as mantle rocks formed during the accretion and differentiation of the Earth, or as cumulate rocks formed by precipitation of olivine ± pyroxenes from basaltic or ultramafic magmas; these magmas are ultimately derived from the upper mantle by partial melting of mantle …
Is the mantle mostly peridotite?
Earth’s mantle is thought to be composed mainly of peridotite. Some of the occurrences of peridotite on Earth’s surface are thought to be rocks from the mantle that have been brought up from depth by deep-source magmas. Ophiolites and pipes are two structures that have brought mantle peridotite to the surface.
How many types of peridotite are there?
Note that neither peridotite nor pyroxenite are single rock types. They are further divided into subtypes. There are four subtypes: dunite, harzburgite, lherzolite, and wehrlite.
What type of rock is diorite?
Diorite
| Type | Igneous Rock |
|---|---|
| Texture | Phaneritic (Coarse-grained) |
| Origin | Intrusive/Plutonic |
| Chemical Composition | Intermediate |
| Color | Approximately half dark, half white minerals |
What is a type of intrusive rock?
Intrusive igneous rocks crystallize below Earth’s surface, and the slow cooling that occurs there allows large crystals to form. Examples of intrusive igneous rocks are: diabase, diorite, gabbro, granite, pegmatite, and peridotite.
How deep is the Earths mantle?
deepest layer of Earth’s mantle, about 2,700 kilometers (1,678 miles) beneath Earth’s surface.
What are 5 facts about Aphrodite?
Facts about Aphrodite 5: beauty. Aphrodite is famous due to her magnificent beauty. She was depicted of having the golden hair which reminded us with the setting sun. Her skin was whiter than the ivory. She also had blue eyes which reminded people with the summer sky. Ares was one of her lovers.
What are important powers that Aphrodite have?
Aphrodite possesses the natural powers and abilities of an Olympian goddess such as: immortality, omnipresence, superhuman strength, metamorphosis and teleportation . As the Goddess of Love and Beauty, she has control over love and beauty and is responsible for creating love between mortals.
What are some interesting facts about Aphrodite?
Some of the interesting facts about Aphrodite are: Aphrodite has a special girdle that she wears at all times around her waist; something which is capable of evoking the compelling feeling of love in people who see her or come under her spell. The girdle was made for her by her husband.
What did Aphrodite do for the people?
Aphrodite goddess was asked for beauty by the people and to help them in troubles. Aphrodite is goddess of love, pleasure and progeny which are essential for the spread of the society. People who look at her get the sign of inspiration and love from her. The young people pray the goddess Aphrodite for a good husband and caring wife.