Ancient River Channels

[HardPack]

On 3/9/2021 at 2:04 PM, jasong said:

I just got a geology book called Ancient Landscapes of Western North America: a Geologic History with Paleogeographic Maps and it's pretty awesome if anyone else is looking for a good visual/map overview of how plate tectonics and the different mountain ranges have changed over the hundreds of millions of years. 

The book is on the way. The video series by Nick Zentner, Geologist, Central Washington University (youtube) may be of interest. Prior studies tracking the measurement of movement of the San Andreas Fault System required totaling the SA fault zone, the Walker Lane then required the fanning of Basin Range to account for the total movement. Follow up studies indicated up to twenty miles of offset of the Eocene river channels between adjacent ranges located in Nevada. One of Zentner’s videos “ Eocene 1- Clockwise Rotation” illustrates recent studies of the movement of the Sierra Nevada Block. Give it a watch, it may closer to home than you realized.

[MSC]

Thanks all for sharing all of this info. 

[HardPack]

On 3/6/2021 at 8:59 AM, oneguy said:

Stumbled onto this interesting article form another site......  

 

Check out the forum post /video on the “Geology of the Liberty Gold Deposits”. Nick Zentner, Geology CWU discussion on the Eocene placers deposits located in Liberty, Washington.