A quartz sandstone and an arkose were both produced from the weathering of a granite. Which rock's sediments experienced a greater degree of weathering than the other?

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Quizplus · Accepted Answer

Quartz sandstone, which is composed mostly of quartz, indicates a higher degree of weathering. This is because quartz is more resistant to weathering than the feldspars and other minerals found in arkose. Therefore, the sediments in quartz sandstone have undergone more weathering to remove the less resistant minerals.

A Quartz Sandstone and an Arkose Were Both Produced from the Weathering