Stratified rocks formed through the lithification of compacted sedimentary deposits are categorized as _______________?
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Answer: B. Sedimentary rocks
Explanation
Sedimentary rocks form specifically through the lithification of compacted mineral or organic particles. The compaction and cementation processes transform loose sediments into solid stratified rock layers. Geologists classify rocks formed in this manner directly under the broad sedimentary category. Lithification involves compaction under pressure followed by cementation of mineral grains over time. Sedimentary layers often preserve important geological history including fossils and ancient environmental clues. Common examples of these rocks include sandstone, limestone, and also common shale formations.
These rock formations cover most of the continental crust surface exposed across the planet. Civil engineers study sedimentary layers carefully before planning large foundations or tunnel projects. They frequently contain valuable natural resources such as petroleum, natural gas, and groundwater. Metamorphic rocks develop from existing rocks subjected to extreme subterranean heat and high pressure. Igneous rocks originate exclusively from the cooling and solidification of molten magma or lava. Since only the sedimentary category fits the definition, the all options choice is incorrect.
- Subject
- Everyday Science
- Category
- Everyday Science
- Topic
- —
- Difficulty
- medium
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