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Stromatolites in driveway, Thunder Bay Ontario
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- 95
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- 1
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Chaotically folded iron formation at Field Trip Stop 4. These 1.85 Ga deformed rocks near the Gunflint Trail in northern Minnesota are the result of a meteorite impact in Sudbury, Ontario more then 650km (400 miles) away.
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- 216
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Impact breccia at Field Trip Stop 2. These 1.85 Ga deformed rocks near the Gunflint Trail in northern Minnesota are the result of a meteorite impact in Sudbury, Ontario more then 650km (400 miles) away.
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- 336
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Impact breccia at Field Trip Stop 6. These 1.85 Ga deformed rocks near the Gunflint Trail in northern Minnesota are the result of a mateorite impact in Sudbury, Ontario, more than 650km (400 miles) away.
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- 3
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- 1
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- Total Views
- 389
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- 5

