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Definition of Rhyacian
1. Adjective. (geology) Of a geologic period within the Paleoproterozoic era from about 2300 to 2050 million years ago. ¹
2. Proper noun. (geology) The Rhyacian period. ¹
¹ Source: wiktionary.com
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1. Adjective. (geology) Of a geologic period within the Paleoproterozoic era from about 2300 to 2050 million years ago. ¹
2. Proper noun. (geology) The Rhyacian period. ¹
¹ Source: wiktionary.com