This video is part of the 2013 Darwin Day celebration presented by the Central Washington University Department of Biological Sciences and the College of the Sciences
I find these talks immensely interesting! Mr. Zentner is such an effective teacher. He makes me wish I lived in Washington. I love being addressed as "young people" BW, age 67
I can’t imagine any University that would not get excited by a Professor like Dr.Zelner. What a true asset. Eons ago if I had been exposed to Geology I too would have advanced degrees in Geology.
Nick, I heard what you said! Hilarious you are a real person that is one heck of a teacher. I LOVE geology but I'd take any class you taught. I'll be back up to Cle Elum and Ellensburg and most certainly will attend a class. I will let you know that I am there!! Mainly because I ask questions...grins!
The Mississippi River. You've heard about that river running backwards for a short time during the Maunder, maybe the Dalton GSM? When the New Madrid Fault goes off the quakes are 7.0 and above. They are 'series' earthquakes that after the first quake go off every few months or so after the first quake? This happens every single Grand Solar Minimum. We are in the 'Eddy' Minimum (the guy that named the Maunder Minimum or maybe the Dalton Minimum was a Doctor Eddy). This is supposed to be 80 to 100% possibility. Those are scary numbers that aren't discussed in the media? Today there are many many more people this area comprised of 8 states, huge infrastructure and a nation dependent on the bridges across the Mississippi. Let's not even talk about the fuel lines that I had absolutely no idea were so prevalent and fragile. How John Casey and his friend scientists could say there will be 400,000 plus breaks in these lines I still have to figure out. Please check this out, Nick. Hard to negate this GSM stuff when it has happened every 206 years with the same results of earthquakes and vulcanization all around the globe as is happening now. Still don't understand the relationship between the earthquakes and volcanoes in relation to our sun's hibernation cycle but the history is solid. Yet we've spent billions on CO2 and global warming . This cooling period is real unlike the farce that CO2 we made is causing global warming. We humans are just not that big of a force as yet on this planet to be changing the climate. Weather, yes we are well on our way to be superior in commanding the weather by 2025. Says the Military. But we aren't changing the climate or the composition of our atmosphere. The power of the real world has been withheld from us humans during this very calm and boring time we humans evolved.
As I look at the walls of the Yakima River Canyon, it doesn't really 'look' like it is 'water carved'. (maybe due to the frangibility of the basalt.) Could it be that the ice ages contributed to any of the rock removal from this valley? Could there have been terminal moraine evidence erased by the Ice Age floods? I saw your video showing the terminal moraine upstream, at Thorp. Any evidence of ice scarring/scouring on Yakima River Canyon walls? I expect you would have said so, if there was.
The Okanagan lobe of the ice age probably did not reach this far south, their is lack of morines in the yakima river vally. The terrain started lifting 10 million years ago and the ice age events did not happen until 2 million years ago, so a majority if the carving had already been done by the time the ice ages showed up. But i have also seen spots in the vally where the river use to flow, on those old banks thick layers of sediments have built up, but i jave not seen any glacial erradicts in any layer of the sediment deposites. But their is evidence for flooding caused by landslides backing up the river.
How extraordinary that such oxbows could be chiseled into solid rock. I shouldn't think there are many like it in the world. Are there any other examples to cite? I followed your argument that the regional uplift rate must fall within a band (or at least less than a certain amount) for it to occur. Because the initial oxbows simply HAD to be made up of alluvial soil, it strikes me as a 'tough transition' (rare) to get the river path first into the rock. Thereafter, the process seems straight forward. Once the water is in the rock-lined path, it can go nowhere else (or becomes a wind valley). Eh?
