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  • Average Chemical Composition Of Earth 's Crust Assignment - Charleslansing Cmswiki Wikispaces

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Average Chemical Composition of Earths Crust Assignment NAME: DATE: CLASS: TEACHER: AVERAGE CHEMICAL COMPOSITION OF EARTH 'S CRUST Reading Charts and Working with a Pie Graph Directions: 1 Refer to.

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This guide provides a comprehensive overview of how to effectively fill out the Average Chemical Composition Of Earth's Crust Assignment. Whether you are a student or an educator, understanding the structure of this assignment will help ensure successful completion.

Follow the steps to successfully complete your assignment.

  1. Press the ‘Get Form’ button to access the assignment form and open it for editing.
  2. Begin by filling in your name, the current date, class, and the name of your teacher in the designated fields at the top of the form. This information is essential for identification and proper submission.
  3. Refer to the provided chart that lists the average chemical composition of Earth's crust. Use this chart as a key to guide your responses accurately.
  4. Next, look at the pie chart associated with the assignment. Each letter in the pie chart corresponds to a specific element in Earth's crust.
  5. In the provided blanks, write down the element that corresponds with each letter from the pie chart. Ensure you are verifying the correct matching to avoid inaccuracies.
  6. For each element you write down, complete the fields for the given percentage by mass and volume. It is important to fill in these details to provide a comprehensive understanding of each element's representation.
  7. If there are elements not represented in the letters a through h, make sure to fill in the 'Other' section with the respective mass and volume percentages.
  8. After you have completed all sections of the form, review your entries for accuracy. Make any necessary corrections before finalizing your document.
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Continental crust is indeed “granitic”, and has the general composition typical of granitic rocks, made up of mostly aluminium silicates (the SiAl).

The thickness of the crust beneath continents is much more variable but averages about 30 km; under large mountain ranges, such as the Alps or the Sierra Nevada, however, the base of the crust can be as deep as 100 km. Like the shell of an egg, the Earth's crust is brittle and can break.

The crust's chemical composition includes 93 elements, but only 8 of them represent as much as 99.5% of its mass. It is assumed that, in percent by weight, oxygen represents 46.6%, silicon 27.72%, aluminium 8.13%, iron 5.00%, calcium 3.63%, sodium 2.83%, potassium 2.60%, and magnesium 2.08%.

More than 90% on the crust is composed of silicate minerals. Most abundant silicates are feldspars (plagioclase (39%) and alkali feldspar (12%)). Other common silicate minerals are quartz (12%) pyroxenes (11%), amphiboles (5%), micas (5%), and clay minerals (5%).

About 98% of the total crust is made up of eight elements as oxygen, silicon, aluminium, iron, calcium, sodium, potassium, and magnesium. The rest is constituted by elements like titanium, hydrogen, phosphorous, manganese, sulphur, carbon, nickel and others.

Much of the oceanic crust is composed of mafic rock like basalt, troctolite, and gabbro. These rocks contain higher concentrations of iron, calcium, and magnesium when compared to rocks found in continental crust.

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© Copyright 1997-2025
airSlate Legal Forms, Inc.
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Form Packages
Adoption
Bankruptcy
Contractors
Divorce
Home Sales
Employment
Identity Theft
Incorporation
Landlord Tenant
Living Trust
Name Change
Personal Planning
Small Business
Wills & Estates
Packages A-Z
Form Categories
Affidavits
Bankruptcy
Bill of Sale
Corporate - LLC
Divorce
Employment
Identity Theft
Internet Technology
Landlord Tenant
Living Wills
Name Change
Power of Attorney
Real Estate
Small Estates
Wills
All Forms
Forms A-Z
Form Library
Customer Service
Terms of Service
Privacy Notice
Legal Hub
Content Takedown Policy
Bug Bounty Program
About Us
Blog
Affiliates
Contact Us
Delete My Account
Site Map
Industries
Forms in Spanish
Localized Forms
State-specific Forms
Forms Kit
Legal Guides
Real Estate Handbook
All Guides
Prepared for You
Notarize
Incorporation services
Our Customers
For Consumers
For Small Business
For Attorneys
Our Sites
US Legal Forms
USLegal
FormsPass
pdfFiller
signNow
airSlate WorkFlow
DocHub
Instapage
Social Media
Call us now toll free:
+1 833 426 79 33
As seen in:
  • USA Today logo picture
  • CBC News logo picture
  • LA Times logo picture
  • The Washington Post logo picture
  • AP logo picture
  • Forbes logo picture
© Copyright 1997-2025
airSlate Legal Forms, Inc.
3720 Flowood Dr, Flowood, Mississippi 39232