| 释义 |
quartzose arkose quartzose arkose[′kwȯrt‚sōs ′är‚kōs] (petrology) A sandstone containing 50-85% quartz, chert, and metamorphic quartzite, 15-25% feldspars and feldspathic crystalline rock fragments, and 0-25% micas and micaceous metamorphic rock fragments. |