A newly discovered outcrop in the basin displays uniform bedding, compacted grains, and minimal fluid retention. Which statement best explains how these features are likely to affect the site’s long-term stability?
Answer
A
The site may lose cohesion as compaction restricts flexibility, causing fractures under prolonged stress.
B
The site is unlikely to remain cohesive because its dense layers prevent natural energy release over time.
C
The site is likely to maintain cohesion because its structure distributes stress evenly and limits pore-driven displacement.
D
The site will remain stable only if water is reintroduced to support grain bonding under uniform layers.
Explanation
Uniform bedding and compacted grains help the material distribute stress consistently, while minimal fluid retention reduces the chance of pore water weakening or shifting the grains. Together, these features favor long-term cohesion and stability. Choice C best describes this; the other choices incorrectly suggest that compaction or lack of water necessarily causes instability, or that water must be added.
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