Hummocky and Swaley Cross Stratification in outcrop
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- čas přidán 26. 03. 2016
- IMPORTANT: Science never stands still and our understanding of natural depositional systems is constantly under revision. In the video, I mentioned that HCS and SCS indicate deposition on the shelf and that is no longer true. For years sedimentologists were reluctant to call the bedforms of combined flow by turbidity currents Hummocks and Swales and had to come up with terms like "plow-and-fill" to avoid critique by the community. Until 5 years ago "pseudo-hummocks" were gaining greater acceptance. Now we have the freedom to call these deepwater sedimentary structures Hummocks and Swales.
Also, most sedimentologists have chosen to drop the idea of a Middle Shoreface - therefore in this video most of the succession you see which has stacked HCS and SCS would be part of a lower shoreface that is storm-influenced. - Jak na to + styl
Nice video! What such beautiful structures!
Very helpful, thank you for this amazing informational video. I learnt a lot from this and it has made me realise exactly what a hummock and swale look like. It really is an amazing example of hummocky and swaley cross-stratification.
- Lots of thanks from a Camborne School of Mines (CSM) geologist over at Cornwall, England. :)
It is a very concise and interesting lecture on Hummocky and Swaley Cross Stratification. I liked it very much. You are one of the best Sequence Stratigrapher Ali Jaffri :)
excellent vid, helped me lots in my outcrop interpretation
Very helpful. More please!
+Farid Maharip Thank you! here is another video you may find helpful: czcams.com/video/befZYthcrh0/video.html
It will be great to meet you or work with you one day !!! I am sure it will be a great experience. I am following you everywhere and you are really a great geologist !!! You inspire me a lot 😊👍
Thank you! I appreciate the kind words.
Nice and educational
+Mark Ma Thank you! we're glad you liked it.
In every layer of the earth we find sediment from an alien dust cloud. Also in the youngest layer, which is less than 6000 years old, we find sediment that is perhaps more than a billion years old. This dust cloud originates from the collision of our planet with another planet, planet 9. That planet crosses the ecliptic plane of the other planets every few thousand years. Just before the beginning of our era, that planet was seen, depicted on coins and remnants of that dust cloud were found in the ice sheet of Greenland.
so cool great vídeo i wanna ser many lik this
+Joao Vicente Thank you so much Joao. We will be heading into the field again next week and will create a few more and upload them. Have you seen the rest on our channel?
I want to know details about flaser bedding, massive bedding, convolute bedding..
plz make me understand these sedimentary structures as same as u make us understand these humocky rock stratification
Mr. Rohit please "like" our facebook page and I will honor your request: facebook.com/stratigraphyhelp/
Sir Urdu man b rock's ki phchan batayn sir please
Indeed impressive video...
Helped me lot, it take me zero seconds to press the bell icon after seeing the stuff oll.
Can you plz share your mail because I am the geology student want to reciprocate the things with such geologist, I hope you will acquiesce submission.
Thanking you,
With regards Ahmad Manzoor Dept. Of Geology University Kashmir
what is the mudstone fraction in this outcrop?
Jackie I didn't measure a section at that location so I cant give you an exact percentage but its incredibly low because it seems to be a storm-dominated shoreface with amalgamated tempestites. Ambient condition bioturbated mudstones seem to have been eroded away for the most part. If you're in Colorado or New Mexico Id be happy to give you the exact location so you can go check it out.
GLGY377 Jackie?
094247005 you know it 😂
Ali Jaffri thank you.. i just needed to know for my geology lab report
What sort of depth?
Geoff depths will vary depending on the gradient of the shelf and the fetch in front of the coastline. In the Western Interior Cretaceous Seaway of North America its 10 m for FWWB and 40 m for SWB.
😍
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