Skip to content

ProfoundQa

Idea changes the world

Menu
  • Home
  • Guidelines
  • Popular articles
  • Useful tips
  • Life
  • Users’ questions
  • Blog
  • Contacts
Menu

Which rock is the densest?

Posted on September 4, 2022 by Author

Table of Contents

  • 1 Which rock is the densest?
  • 2 Is mafic or felsic more viscous?
  • 3 What cools faster mafic or felsic?
  • 4 Which rock is the least dense Why?
  • 5 Is felsic light or dark?
  • 6 Is mafic always either ferromagnesian or felsic?
  • 7 What are some examples of felsic rocks?

Which rock is the densest?

The heaviest rocks would be those that are made up of dense, metallic minerals. Two of the heaviest or densest rocks are peridotite or gabbro. They each have a density of between 3.0 to 3.4 grams per cubic centimeter. Interestingly, peridotite are the rocks that naturally occurring diamonds are found in.

Are felsic rocks heavy or light?

Felsic refers to silicate minerals, magma, and rocks which are enriched in the lighter elements such as silicon, oxygen, aluminium, sodium, and potassium. Felsic magma or lava is higher in viscosity than mafic magma/lava. Felsic rocks are usually light in color and have specific gravities less than 3.

Is mafic or felsic more viscous?

Composition: he more felsic the lava (the more silica in the lava), the higher the viscosity because silica forms chains in the cooling lava even before it crystallizes. The more mafic the lava (the less silica in it), the lower the viscosity.

READ:   What is the percentage of hydrogen?

Is felsic intrusive or extrusive?

For example, a coarse-grained, felsic igneous rock is not only a granite, it is an intrusive igneous rock that formed from slow cooling and crystallization of a body of magma within the earth’s crust. The intrusion of large bodies of granite—batholiths—is usually part of the origin of a mountain range.

What cools faster mafic or felsic?

Felsic magmas tend to be cooler than mafic magmas when crystallization begins (because they don’t have to be as hot to remain liquid), and so they may start out crystallizing pyroxene (not olivine) and plagioclase.

Are felsic rocks less dense?

The densities for some common rocks, minerals, and other materials are summarized below. Igneous and metamorphic rock are generally more dense than sedimentary rocks. Mafic igneous rocks are generally more dense than felsic igneous rocks.

Which rock is the least dense Why?

Sedimentary rocks (and granite), which are rich in quartz and feldspar, tend to be less dense than volcanic rocks. And if you know your igneous petrology, you will see that the more mafic (rich in magnesium and iron) a rock is, the greater its density.

READ:   Which group is at highest risk of an occupational injury?

Why are felsic rocks lighter than mafic?

Mafic rocks are rich in the heavy minerals, iron and magnesium. This gives these rocks their characteristic dark green or greenish-black colour. Whereas, felsic rocks are rich in silica and aluminium along with oxygen, sodium and potassium that gives the light shade for these rocks.

Is felsic light or dark?

Felsic minerals (quartz, K feldspar, etc) are light colored while mafic minerals (hornblende, pyroxenes) are normally dark colored. Felsic minerals have the lowest melting points (600 to 750 °C) and mafic minerals have higher melting points (1000 to 1200 °C).

Is felsic magma more dense?

It forms within the upper mantle, much deeper than felsic magma. Because of the depth, it is hotter and contains more high density materials, such as iron and magnesium….

MAGMA COMPARISON
Property Mafic Magma Felsic Magma
Density higher (3 g/cm3) lower (2.7 g/cm3)
Viscosity lower higher
Formation Temp. higher lower

Is mafic always either ferromagnesian or felsic?

Mafic materials can also be described as ferromagnesian. Chemically, mafic rocks are enriched in iron, magnesium and calcium and typically dark in color. In contrast the felsic rocks are typically light in color and enriched in aluminium and silicon along with potassium and sodium. The mafic rocks also typically have a higher density than

READ:   Why do I feel nerve pain in my head?

Is felsic an intrusive or extrusive rock?

Chemical Composition. Felsic rocks are high in silica (65\% +). They are usually light-colored. Some examples are: Rhyolite (extrusive) and granite (intrusive). Intermediate rocks have lower silica content (55-65\%). They are darker than felsic rocks but lighter than mafic rocks. Some examples are: Andesite/dacite…

What are some examples of felsic rocks?

Granite is a great example of Felsic rocks and muscovite, quartz, and some feldspar are the best examples of Felsic minerals. All Felsic rocks contain a high percentage of silica. For example, granite contains around 70\% of silica.

What is an example of a mafic rock?

In addition to magnesium and iron silicates, mafic igneous rock may include other minerals, such as calcium-plagioclase feldspar, pyroxene, olivine and amphibole. Gabbro is an example of slow-cooling mafic igneous rock. Basalt is an example of fast-cooling mafic igneous rock.

Popular

  • Why are there no good bands anymore?
  • Does iPhone have night vision?
  • Is Forex trading on OctaFX legal in India?
  • Can my 13 year old choose to live with me?
  • Is PHP better than Ruby?
  • What Egyptian god is on the dollar bill?
  • How do you summon no AI mobs in Minecraft?
  • Which is better Redux or context API?
  • What grade do you start looking at colleges?
  • How does Cdiscount work?

Pages

  • Contacts
  • Disclaimer
  • Privacy Policy
  • Terms and Conditions
© 2025 ProfoundQa | Powered by Minimalist Blog WordPress Theme
We use cookies on our website to give you the most relevant experience by remembering your preferences and repeat visits. By clicking “Accept All”, you consent to the use of ALL the cookies. However, you may visit "Cookie Settings" to provide a controlled consent.
Cookie SettingsAccept All
Manage consent

Privacy Overview

This website uses cookies to improve your experience while you navigate through the website. Out of these, the cookies that are categorized as necessary are stored on your browser as they are essential for the working of basic functionalities of the website. We also use third-party cookies that help us analyze and understand how you use this website. These cookies will be stored in your browser only with your consent. You also have the option to opt-out of these cookies. But opting out of some of these cookies may affect your browsing experience.
Necessary
Always Enabled
Necessary cookies are absolutely essential for the website to function properly. These cookies ensure basic functionalities and security features of the website, anonymously.
CookieDurationDescription
cookielawinfo-checkbox-analytics11 monthsThis cookie is set by GDPR Cookie Consent plugin. The cookie is used to store the user consent for the cookies in the category "Analytics".
cookielawinfo-checkbox-functional11 monthsThe cookie is set by GDPR cookie consent to record the user consent for the cookies in the category "Functional".
cookielawinfo-checkbox-necessary11 monthsThis cookie is set by GDPR Cookie Consent plugin. The cookies is used to store the user consent for the cookies in the category "Necessary".
cookielawinfo-checkbox-others11 monthsThis cookie is set by GDPR Cookie Consent plugin. The cookie is used to store the user consent for the cookies in the category "Other.
cookielawinfo-checkbox-performance11 monthsThis cookie is set by GDPR Cookie Consent plugin. The cookie is used to store the user consent for the cookies in the category "Performance".
viewed_cookie_policy11 monthsThe cookie is set by the GDPR Cookie Consent plugin and is used to store whether or not user has consented to the use of cookies. It does not store any personal data.
Functional
Functional cookies help to perform certain functionalities like sharing the content of the website on social media platforms, collect feedbacks, and other third-party features.
Performance
Performance cookies are used to understand and analyze the key performance indexes of the website which helps in delivering a better user experience for the visitors.
Analytics
Analytical cookies are used to understand how visitors interact with the website. These cookies help provide information on metrics the number of visitors, bounce rate, traffic source, etc.
Advertisement
Advertisement cookies are used to provide visitors with relevant ads and marketing campaigns. These cookies track visitors across websites and collect information to provide customized ads.
Others
Other uncategorized cookies are those that are being analyzed and have not been classified into a category as yet.
SAVE & ACCEPT