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What is the basal Cambrian deposit on the passive trailing edge of the Cambrian Continent in the Grand Canyon? |
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What is the Silica-cemented, quartz pebble, sandy conglomerate that forms the basal Cambrian unit in Western Montana? |
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What was the the highland along the rift-uplift Keeweenawan time that extended from New Mexico to Minnesota? |
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Definition
The transcontinental arch |
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Term
What was the highland in North Central Montana that was the provenance for the Flathead Quartzite? |
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Term
What collision produced the Taconic Highlands that extended into the Caledonian Highlands of Scotland? |
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Term
What modern areas were included in the Samfrau Geosyncline? |
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Definition
South America, Africa, Australia |
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Term
What body of water was between Baltica and Laurentia? |
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Definition
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Term
What produced the Salt deposits of the Michigan and Illinois Basins during the late Silurian? |
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Definition
shallow marine evaporite basins |
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Term
What is the purest sandstone in the US? |
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Term
The Williston Basin and the Appalachian Basin formed when? |
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Definition
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Term
What roduced the salt deposits of the Michigan and Ilinois Basins during the late Silurian? |
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Definition
Shallow marine evaporite basins |
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Term
The North edge of the Laurentia was a stable carbonate shelf called the ______________ shelf? |
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Term
The ________________ seaway was present between Baltica and Laurentia? |
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