Valles Caldera Geology Tour (Part 4 of 6): The Eruption
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- čas přidán 5. 09. 2020
- The Eruption - At this famous overlook of Valle Grande we have crossed the rim and dropped down into the magnificent Valles Caldera. Across the valley to the NW is Redondo, the caldera's resurgent dome. Here we will discuss the model for the Valles eruption presented by 3 geologists (Smith, Bailey, and Ross), along with their publication of a geologic map for the Jemez Mountains. Their groundbreaking research made the Valles Caldera world famous - at least in the world of volcanology! We also discuss the dynamic geology inside the caldera since caldera formation, including 8 significant volcanoes. A Google Earth flight will show how topography around the caldera dictated the distribution of pyroclastic flows.
Javier Sernas - jsproductions.squarespace.com
Another excellent chapter in understanding the Valles Caldera. Thank you!
Now I understand a lot more about this land I love so much. Thank you!
Enjoyed it.
Excellent
Outstanding video & explanation ! Thanks you sir!
Great video! ESPAÑOL ES MUCHO BONITO LOL
No really. Each language has its own thing going; However, you have to give credit to the old Spanish colonialist while naming places. Eclectic
Nice Spanish R rolling while pronouncing Redondo. You sound like a native speaker.
How can we tie this to round valley? Fault lines?
How geologically active is that caldera and them volcanoes? Any geysers or epithermal stuff going on? Hot springs? I really wanna see the process of gold and mineral deposition in "real" time so to speak.
Ecologically speaking, is there a reason the trees are sticking to the high lands and the rest is just grasses? Or is there like a rain shadow effect of some kind limiting water? Not from that area so I don't know the landscapes well. Just curious. :)
Looking at the Wikipedia article, it seems that the area has been intensely logged and grazed until fairly recent times. So I think we’re seeing a recovering landscape still, and maybe something that’ll be tended.
I found a flat, silver-gray stone in Rendija Canyon, just off the east side of Baranca Mesa, that seemed to be harder than steel (what, about 6, or so, on Mho's scale) could it be ryolite?
What is the caldera diameter?
Does not sound like a supervolcano.