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单词 Phosphoria Formation
释义

Phosphoria Formation

英语百科

Phosphoria Formation

Peloidal phosphorite from the Phosphoria Formation, Simplot Mine, Idaho. 4.6 cm wide.

The Phosphoria Formation of the western United States is a geological formation of Early Permian age. It represents some 15 million years of sedimentation, reaches a thickness of 420 metres (1,380 ft) and covers an area of 350,000 square kilometres (140,000 sq mi).

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更新时间:2025/6/18 2:05:01