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Carboniferous swamps once covered the basin, leaving behind vast coal deposits.
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Carboniferous swamps once covered the basin, leaving behind vast coal deposits.
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Related words
Carboniferous
Adjective
not-comparable
Japanese Meaning
古生代に属する地質時代のひとつで、約3億4500万年前から約2億8000万年前までの期間にあたり、ミシシッピアン期とペンシルベニア期に相当し、この時期に石炭が多量に堆積した。
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