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单词 Austin Chalk
释义

Austin Chalk

英语百科

Austin Chalk

The Austin Chalk is an upper Cretaceous geologic formation in the Gulf Coast region of the United States. It is named after type section outcrops near Austin, Texas. The formation is made up of chalk and marl.

Dinosaur remains are among the fossils that have been recovered from the formation, although none have yet been referred to a specific genus.

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更新时间:2025/6/20 1:35:38