RT @USGSMinerals: Back to the Mid-Continent Rift, a partnership made up of @UMNEarthScience, @UIowaEES, the Minnesota Geological Survey and…
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RT @USGSMinerals: Back to the Mid-Continent Rift, a partnership made up of @UMNEarthScience, @UIowaEES, the Minnesota Geological Survey and…
747 followers
RT @USGSMinerals: Back to the Mid-Continent Rift, a partnership made up of @UMNEarthScience, @UIowaEES, the Minnesota Geological Survey and…
11 followers
RT @USGSMinerals: Back to the Mid-Continent Rift, a partnership made up of @UMNEarthScience, @UIowaEES, the Minnesota Geological Survey and…