What is a syncline?

A fold where rock units buckle downward.

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  1. A fold where rock units buckle downward ✔
  2. A fold where rock units buckle upward
  3. A type of fault

Why: Synforms buckle downward, and if the tops of rock units remain pointing up, they are called synclines.

Huh, didn't know that: Synforms buckle downward, and if the tops of rock units remain pointing up, they are called synclines.

The dad joke
Synclines dip in the middle.
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References

Answer: A fold where rock units buckle downward. Synforms buckle downward, and if the tops of rock units remain pointing up, they are called synclines.

  1. Geology en.wikipedia.org/wiki/Geology
    where it buckles downwards, creating "synforms". If the tops of the rock units within the folds remain pointing upwards, they are called anticlines and synclines
    Checked 2026-11-07.

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