Kimmeridgian marl is associated with which geological period?

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Multiple Choice

Kimmeridgian marl is associated with which geological period?

Explanation:
Kimmeridgian marl comes from a named stage of the Late Jurassic, so it belongs to the Jurassic period. The Kimmeridgian stage sits in the late part of the Jurassic, roughly around 157 to 152 million years ago, and the Kimmeridge Clay Formation is a classic example of marl formed in a marine setting during that time. Triassic and Permian are earlier, and the Cretaceous follows after the Jurassic, so they don’t match the age of the Kimmeridgian.

Kimmeridgian marl comes from a named stage of the Late Jurassic, so it belongs to the Jurassic period. The Kimmeridgian stage sits in the late part of the Jurassic, roughly around 157 to 152 million years ago, and the Kimmeridge Clay Formation is a classic example of marl formed in a marine setting during that time. Triassic and Permian are earlier, and the Cretaceous follows after the Jurassic, so they don’t match the age of the Kimmeridgian.

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