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G. Randy Keller The Granite Wash: A Few Thoughts About The Big Picture.

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Presentation on theme: "G. Randy Keller The Granite Wash: A Few Thoughts About The Big Picture."— Presentation transcript:

1 G. Randy Keller The Granite Wash: A Few Thoughts About The Big Picture

2 Wichita. Amarillo index The Southern Oklahoma aulacogen The Southern Oklahoma Aulacogen (SOA) is a major tectonic feature of global significance

3 The Late Precambrian Structural Framework

4 Afar vs. SOA Triple Junctions The scales are approximately the same

5 SOA experiment index UTD/UTEPRefraction/WARExperiment AMOCO Research Crew 21 large shots

6 SOA Velocity Model-Upper Crust

7 Crustal model derived by integrated analysis of seismic, geologic, and gravity data The mafic core of the Wichita uplift resides almost completely in the upper plate of the Mountain View thrust system

8 Gravity Anomalies - Amarillo Uplift NE NS

9 Integrated model for the NE profile (by Diana Smith) A large mafic core and a nearly vertical fault on the north side of the uplift are required to fit the observed data. North

10 SOA Extent What is the extent of the SOA?

11 European Tectonics Let’s revisit the classic analogy with the Dniepr-Donets basin

12 Pripyat-Dniepr-Donets-Basin Devonianrifting Late Cretaceous inversion Permianreactivation The DOBRE Project

13 DOBRE - Velocity Structure

14 Major tectonic inversion that involved thrusting and strike-slip created the structures that were the source of the “Granite Wash”. A better understanding of these structures should help our efforts to exploit the “Granite Wash” and perhaps even find new fields.


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