I think that’s a trick of the light and the video quality. There’s Thalassinoides, Palaeophycus, and maybe some Teichichnus and Psilonichnus but haven’t seen Teredolites.
Who knew that sediments had so much to tell us? Thanks for sharing your expertise with us. I never get tired of imagining what sort of dinosaurs walk over those shorelines and rivers.
I’m a regular viewer of Nick Zentner, Shawn Wilsey and Myron Cook. And you are definitely of their caliber of quality and presentation. I learn so much from your videos. I’m fascinated by your deep knowledge of sedimentary systems and fossils. I’m rooting for you! You definitely should be reaching a wider audience. I think it’s just a matter of time. The algorithm will hopefully kick in soon. You have so much to offer. Keep up the good stuff
It is so fun to walk through these steps and see it all come to life. Wyoming is such a teaching paradise in this regard. Another great video.👍Thank you, once again.😊
I’m always surprised (but admittedly relieved) to not see massive groups of geoscience students crawling all over these outcrops all summer! Absolutely the best place in the world to look at rocks in my biased opinion!
Agreed! I often get bummed thinking of all my years in Casper, working so much that I didn't or couldn't "do geology" on my own time like I'm wanting to now... especially with the tools we have these days (digital, apps, social media outreach, etc.). Wyoming/West is a perfect classroom, yep! One more reason I love the videos you are making. 🙂 Depositional environments analysis & interpretation are something more folks should geek out on! I do. Please, keep up the awesome outreach/education! 👍🤠⚒️
Damn, best video yet. You just keep outdoing yourself! Now, how do us mere mortals get permission from the railroad to visit this place? By the way, I'm still waiting for you to visit the Grand Valley and head up to the Book Cliffs to make a video about the lower Iles Formation. I'll volunteer to hold the camera.
You’re too kind! A friend of mine in grad school worked on the Iles and I remember many a discussion about the interpretation of an incised valley in Castor Gulch, south of Craig. Would be great to get back and visit sometime.
Perhaps it's just simultaneous contrast striking, but is the Rock River formation on top of the very clean/white formation exhibiting a yellow band that becomes grey toward its top? If so, is that likely to be caused by what was in the sand and rip-up clasts on deposit, or is that some sort of water infiltration staining?
The yellow color is a result of iron oxide (or some other oxide) that accumulated in association with organic material at the bases of channel bodies. So it’s a result of water infiltration and then interaction with the rip up clasts and other material at the channel bottoms.
No problem. The cross beds are the slip faces of subaqueous dunes. So they are pointing downstream and their dip direction (from top to bottom) reveals flow direction.
Coffee treat for U!, from silver city NM.
Very kind of you! Thanks very much!
Another great video Doc!
Thanks very much!
Very nice! I see Teredolites at 12:03
I think that’s a trick of the light and the video quality. There’s Thalassinoides, Palaeophycus, and maybe some Teichichnus and Psilonichnus but haven’t seen Teredolites.
very informative video. like usual.
Thank you kindly!
Thanks Doc. Another great video.
Thank you!
Ahhh I love a good fluvial reference.
Who knew that sediments had so much to tell us? Thanks for sharing your expertise with us. I never get tired of imagining what sort of dinosaurs walk over those shorelines and rivers.
Thanks for watching!
I’m a regular viewer of Nick Zentner, Shawn Wilsey and Myron Cook. And you are definitely of their caliber of quality and presentation. I learn so much from your videos. I’m fascinated by your deep knowledge of sedimentary systems and fossils. I’m rooting for you! You definitely should be reaching a wider audience. I think it’s just a matter of time. The algorithm will hopefully kick in soon. You have so much to offer. Keep up the good stuff
Kind of you to say! I’ll never understand how the algorithm works, but I’m glad I’m able to reach the audience I do.
Great geo from the field. You take the sedentary out of sedimentary geology...
Thank you! I also strive to take the ignorance out of igneous and the misanthropic out of metamorphic.
@@rock-o-rama😆
Awesome as usual
It is so fun to walk through these steps and see it all come to life. Wyoming is such a teaching paradise in this regard. Another great video.👍Thank you, once again.😊
I’m always surprised (but admittedly relieved) to not see massive groups of geoscience students crawling all over these outcrops all summer! Absolutely the best place in the world to look at rocks in my biased opinion!
Agreed! I often get bummed thinking of all my years in Casper, working so much that I didn't or couldn't "do geology" on my own time like I'm wanting to now... especially with the tools we have these days (digital, apps, social media outreach, etc.). Wyoming/West is a perfect classroom, yep! One more reason I love the videos you are making. 🙂 Depositional environments analysis & interpretation are something more folks should geek out on! I do. Please, keep up the awesome outreach/education! 👍🤠⚒️
Thank you from Morocco.
You’re very welcome from Wyoming! And thank you for watching!
Hope all is well in your world👍. Taecey
Really great Taecey! Busy and fun! Hope you’re doing well too!
Damn, best video yet. You just keep outdoing yourself!
Now, how do us mere mortals get permission from the railroad to visit this place?
By the way, I'm still waiting for you to visit the Grand Valley and head up to the Book Cliffs to make a video about the lower Iles Formation. I'll volunteer to hold the camera.
You’re too kind! A friend of mine in grad school worked on the Iles and I remember many a discussion about the interpretation of an incised valley in Castor Gulch, south of Craig. Would be great to get back and visit sometime.
Perhaps it's just simultaneous contrast striking, but is the Rock River formation on top of the very clean/white formation exhibiting a yellow band that becomes grey toward its top? If so, is that likely to be caused by what was in the sand and rip-up clasts on deposit, or is that some sort of water infiltration staining?
The yellow color is a result of iron oxide (or some other oxide) that accumulated in association with organic material at the bases of channel bodies. So it’s a result of water infiltration and then interaction with the rip up clasts and other material at the channel bottoms.
Using George Castanzas take on shrinkage really ties it all together.
Everyone knows about shrinkage , right?
This may sound stupid , but could you explain again how you determined flow direction?
No problem. The cross beds are the slip faces of subaqueous dunes. So they are pointing downstream and their dip direction (from top to bottom) reveals flow direction.
@@rock-o-rama Of course.. that makes sense, thanks
@@rock-o-rama just like in-fossilized sand and mud in a stream
When taping white or bright rock it is not helpful to use white letters in written overlays.