Geography, asked by raj5484, 11 months ago

characteristics of sandstone​

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Answered by dev6673
6

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Answered by mad210215
3

Characteristics

Explanation:

  • Terrigenous sedimentary rocks composed mainly of sand size particles are called sandstones.
  • Sand -size fragments of quartz, feldspars,micas ,heavy minerals and rock fragments constitute the bulk of framework grains of sandstone.
  • The voids between the framework grains of sandstones are filled with finer grains of terrigenous origin or by chemically precipitated cement.
  • Sandstones are classified by observable petrographic criteria.
  • Proportion of quartz, feldspar,rock fragments, and mica are commonly used for this purpose.
  • A sandstone composed of wholly quartz grains is considered to be the most matured.
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