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Home Q & A Board Science-Related Homework Help Geography and Earth Sciences
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jaypatel432 jaypatel432
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6 years ago

____________________ ____________________ ____________________ are alternating layers of chert and iron
  oxide minerals that formed in shallow marine environments 2.3-2.5 bya. Fill in the blank(s) with the appropriate word(s).
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HadajahpopeHadajahpope
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jaypatel432 Author
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6 years ago
Thanks
sleinhi
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This site is awesome
loki1345
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2 hours ago
Smart ... Thanks!
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