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- ...to slip over the soft core with a minimum of disturbance. After coring, a ball is pumped downhole activating the core catcher and sealing off the bottom o13 KB (1,885 words) - 20:49, 19 January 2022
- ...olute laminations and other types of distorted bedding such as flow rolls, ball and pillow structures, etc. ([[:file:M31F14v2.jpg|Figure 7D]]), are common27 KB (4,229 words) - 16:41, 6 April 2016