Does the sedimentary rocks formed out of igneous rocks deposits?

Answer 1

Sedimentary rocks are the result of weathering, and erosion of other rocks within the rock cycle and from the death and deposition of organic material. Igneous Rocks vary from mafic to felsic mineral content, and are produced under great pressure and heat within the earth, being extruded onto the surface by volcanic eruptions, or revealed by the weathering of surrounding rocks, revealing cooled magma chambers, dykes etc.

As igneous rocks are eroded by natural processes, the fragments of quartz, pyroxene, feldspar and other minerals gets broken down into fine particles, which in turn become buried and compacted, gradually forming sedimentary layers.

e.g Sandstone and Granite both contain quartz, but sandstone is sedimentary and granite is igneous.

Answer 2

Sedimentary rocks can form from the weathering and erosion of any type of rocks, including igneous rocks. When igneous rocks are subjected to weathering and erosion, the resulting sediments can be transported and eventually deposited to form sedimentary rocks through processes like compaction and cementation.