1 / 16

Proterozoic Geology of Minnesota 2.5-0.6 Ga

Proterozoic Geology of Minnesota 2.5-0.6 Ga. Jim Miller University of Minnesota Duluth. The Geologic Record in Minnesota. Paleoproterozoic The Penokean Orogen 1.9-1.8 Ga Making Laurentia.

marny-morse
Download Presentation

Proterozoic Geology of Minnesota 2.5-0.6 Ga

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Proterozoic Geology of Minnesota 2.5-0.6 Ga Jim Miller University of Minnesota Duluth

  2. The Geologic Record in Minnesota

  3. Paleoproterozoic The Penokean Orogen 1.9-1.8 Ga Making Laurentia

  4. Proterozoic Eon (2.5-0.6 Ga)Accreting terrains to the 3.6-2.5 Ga Superior Province creating Laurentia

  5. MESABI-TYPE IRON FORMATION Geologic Marker of a Major Evolutionary Event

  6. STROMATOLITES (Fossilized Algal Mats) A Key to the Origin of Mesabi-type Iron Formation Mary Ellen Mine LTV Mine Shark Bay, Australia

  7. Penokean Orogeny 1.85 Ga Thomson Dam Eveleth St. Cloud

  8. Duluth

  9. Penokean Mountains (1.85 -1.75 Ga)

  10. Mesoproterozoic Growing Laurentia at 1.1 Ga, Or Not Mantle Plume Orogen Grenville

  11. Initiation of the MCR by the impact of a starting mantle plume

  12. Evolution of the Midcontinent Rift 1,109-1,086 Ma 1,090-900 Ma 1,000-900 Ma

  13. Origin of MCR Igneous Rocks

  14. Geology of Northeastern Minnesota Exercise 2A Field Area

More Related