Last Updated
：2025/11/20
Ectasian
（ comparative ）
（ superlative ）
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(geology) Of a geologic period within the Mesoproterozoic era from about 1400 to 1200 million years ago.
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Ectasian
Ectasian volcanic rocks preserved in the basin provide valuable clues about Mesoproterozoic tectonic processes.
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Ectasian volcanic rocks preserved in the basin provide valuable clues about Mesoproterozoic tectonic processes.
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