Last Updated
：2025/11/25
aulacogen
Noun
Japanese Meaning
（地質学）原始大陸上で、三重のリフト分岐接合から形成されるが、うまく発展しなかった一腕として残されたテクトニックな溝
（ plural ）
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(geology) A tectonic trough on a craton that is formed as the failed arm of a triple-rift junction.
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aulacogen
Geologists examined the ancient aulacogen to determine how a failed arm of a triple-rift junction could leave such a pronounced trough on the craton.
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Geologists examined the ancient aulacogen to determine how a failed arm of a triple-rift junction could leave such a pronounced trough on the craton.
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