G207mod6addingtothecollage
Download
1 / 27

Today GUEST LECTURER Eriks Puris Overview Mesozoic Geology Adding Pieces to the Collage - PowerPoint PPT Presentation


Today GUEST LECTURER Eriks Puris Overview Mesozoic Geology Adding Pieces to the Collage. Figure 23.02: Divisions of the Mesozoic Era and key geologic events. Mesozoic Geology. Global Tectonics Climate Orogenies in Western North America. Fig. 23.03 a: Early Triassic (250 m.y.a).

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha

Download Presentation

Today GUEST LECTURER Eriks Puris Overview Mesozoic Geology Adding Pieces to the Collage

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.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -

Presentation Transcript


  • Today

    • GUEST LECTURER Eriks Puris

    • Overview Mesozoic Geology

    • Adding Pieces to the Collage


Figure 23.02: Divisions of the Mesozoic Era and key geologic events


Mesozoic Geology

  • Global Tectonics

  • Climate

  • Orogenies in Western North America


Fig. 23.03 a: Early Triassic (250 m.y.a)


Figure 23.03 b: Late Triassic (200 m.y.a)


Figure 23.03 c: Jurassic (160 m.y.a)


Figure 23.03 d: Late Jurrasic to Early Cretaceous (130 m.y.a)


Fig. 23.03 e: Late Cretaceous, End of Mesozoic (66 m.y.a)


Ice House and Green House Worlds

W. W. Norton. After Kump et al., 1999


West Coast Orogenies

  • Sonoman

  • Cordillearan

    • Nevadan

    • Sevier

    • Laramide


Figure 23.10 : Sonoman Orogeny

  • Late Permian-Early Tertiary

  • 250-225 m.y.a.

  • Westward Subduction

  • Accreation of Sonomia


Figure 23.10: Nevadan Orogeny

  • Late Jurrassic

  • 160-140 m.y.a.

  • Eastward Subduction

  • Granite Batholiths


Fig. 23.11: Sierra Nevada Mountains


Figure 23.10: Sevier and Laramide Orogenies


Figure 23.12b: Sevierorogeny deformation


Fig. 23.12 a: Mountains in Sevier thrust belt


Figure 23.14: Buoyant subduction model for the Laramide orogeny


Sevier and Laramide Orogenies

  • Late Cretaceous

    • Sevier 100-80 m.y.a.

    • Laramide 80-60 m.y.a.

  • Continued Eastward Subduction

  • Fold and thrust belts

  • Basement Uplifts

  • Don’t Fit Simple Plate Tectonic Model

  • Shallow Subduction?


Fig.23.09: Growth of West CoastCrustal terranes in the Cordillera


Adding Pieces to the Collage

  • Module 6

  • Northwest Origins Burke Museum

  • North Cascades Geology


For Monday 11/29

  • Reading-Chapter 24


ad
  • Login