Mudrocks have generally been compacted by up to 40% compared to their original sedimentary thickness and form.

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Mudrocks are fine-grained sedimentary rocks that have been formed from the consolidation of clay and silt particles. They are typically highly compressed and compacted during the process of diagenesis, which can lead to a reduction in their original thickness and volume by up to 40%.

Mudrocks Have Generally Been Compacted by Up to 40% Compared