Question

note on shield area​

Answer 1

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$\huge\star\mathfrak\pink{{Shield}}$$\huge\star\mathfrak\pink{{Area:-}}$

Shield is considered to be the core portion of a continent. These shields are made up of igneous crystalline rocks and high grade metamorphic rocks. Rocks in the shield area are ancient. Their period can be from 580 million to 2 billion years. Brazil and Guyana shields are considered to be the core of the South American continent.

Answer 2

Question:-

Note on shield area:-

Answer:-

• A shield is a large area of exposed Precambrian crystalline igneous and high-grade metamorphic rocks that form tectonically stable areas.
• Shields occur on all continents Shield is considered to be the core portion of a continent.
• These shields are made up of igneous crystalline rocks and high grade metamorphic rocks.
• Rocks in the shield area are ancient.
• Their period can be from 580 million to 2 billion years.

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