Symmetrical Ripple Marks Identified
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- čas přidán 11. 06. 2022
- Hello Rock People! This is Dave the Geology Dude! Today we visit Alki Beach in Seattle, Washington--to identify sedimentary ripple marks (using photogrammetry). Most specifically we will discuss the differences between symmetrical ripples and asymmetrical ripples. Ripple marks are associated with different environments. This includes beaches for symmetrical ripples, and rivers and dunes for asymmetrical ripples. We identify ripple crest and trough too. There are also some turbidites on the beach too, but that is a focus for another time. Don't forget: Geology isn't rocket science--it's Rock Science! Please "like" and subscribe to this CZcams channel!
Copyright by David Knoblach, 2022. All rights reserved (please contact me for permission to use).
Hello Rock People! This is Dave the Geology Dude! There is more to this video than just a spinning ripple marks. There are detailed notes in the description area of this video. If you want more, longer length rock identification videos are on my CZcams homepage. Check them out, or leave a comment here!
Just came across your channel today. Good stuff.
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Thanks very much for your comment!
Wonderfully explained!..what would I not give to have you as my professor in my geological classes! Thanks DK Sir
I truly appreciate your comment. It has made my day!
@@GeologyDude your welcome!
An amazing use of your 3D filming technique, how large an area would it be possible to do?
Thanks for the compliment! The owner of the software says nobody is doing what I’m doing. I’ve done 3D of whole government buildings and one-acre size fields of flowers (these are not perfect-because the amount of pictures and computer memory/power needed- limits what can be done). But because of depth of field, these ripples took many days to get it to work. There is a huge amount of time involved to learn what works, and how to do it-and 40% of my attempts fail. But when it works it’s fantastic!
My latest video is a good showcase on what I can do in 3D: Wilkeson’s Coal and Sandstone. I hope you like it!
Geologists only talk and think in millions of years. They have different methods for determining the age of rock layers. However, there is one small problem. Ancient books tell us that a cycle of natural disasters threatens the earth and all living things. The cause of this cycle of disasters is a ninth planet in our solar system orbiting the sun in an eccentric orbit. Features of the natural disaster include a massive tidal wave, higher than the highest mountain, flooding, storms, rain, volcanic eruptions, earthquakes, and a fiery asteroid bombardment. That planet is surrounded by a gigantic twisting cloud of dust and meteorites. That cloud obscures the atmosphere, pollutes the water and covers the whole planet Earth with that dust. At the end of the crossing of this planet 9, the earth is covered with a horizontal layer of wet mud, a mixture of sand, clay, lime, fossils of sea and land animals, shells and the deposit of that dust cloud and asteroids. So every layer on our planet contains material with the same antiquity, perhaps many millions of years old: the deposit of extraterrestrial clay and meteorites. If you don't know about this cycle, you have no idea how our history has evolved. To learn much more about planet 9, the recurring flood cycle and its timeline, the re-creation of civilizations and ancient high technology, read the e-book: "Planet 9 = Nibiru". It can be read on any computer, tablet or smartphone. Search: invisible nibiru 9
Thanks for your comment. I will respectfully reply that the rocks record earth’s history from a time long before any ancient books were ever published. That is why rocks provide far more reliable information to judge the long-time potentials for geologic and space hazards on earth. Rocks record significant events like volcanic lava flows, tidal waves, earthquakes, floods, landslides and asteroid impacts-including those that happened before people could record them happening in ancient books. It is true that periodic catastrophes occur on earth. Fortunately, the worst catastrophes happening within a human lifetime are extremely remote. Injury is far more probable from a car accident, crime, or other “everyday” hazards-than from space or some geological hazard…. It is true that many scientists believe that a large planet beyond Pluto may exist. But that potential planet is located extremely far from earth. It would be extremely unlikely to have any object from that far out have such an exact orientation to hit earth. Jupiter is a much larger planet and much closer to earth than something beyond Pluto (based on assumptions of the planet size beyond Pluto). It is much more likely for Jupiter to cause problems on earth, but Jupiter is so massive that it more often blocks incoming objects to protect earth from harm…. To demonstrate how orbital variables of planets do not affect earth in any significant way-except rare exceptions over very long time periods- is to look back at 1982. In 1982, all the planets (including Pluto) were somewhat aligned in a row on one side of the sun. Some people worried that this rare occasion of combined orbital tugs would cause earthquakes, tidal waves, and other hazards. Nothing happened-because the planets are very small compared to the sun, and are located so far from each other-that the forces in this extraordinary situation were too insignificant to cause anything to happen. So the significant amounts of sand, clay, lime, etc. on earth are not associated at all with Planet 9.
@@GeologyDude Thank you for this comprehensive and reassuring answer. It is clear that you love your profession. As you rightly say, many rocks are much older than mankind. But ever since humans have lived on Earth, they've been recording warnings of a nasty natural disaster caused by a celestial body. Sometimes as petroglyphs, sometimes on animal skins, etched into stones and later written on cylinder seals or coins and in books. As a result, we now have several images of an approaching celestial body, we know from which direction it comes and in which direction it passes. And there are extensive descriptions of the disaster and its consequences. Plato also tells us about a recurring, therefore predictable natural disaster. A second misunderstanding is the idea that planet 9 is very far away in the universe, but this planet has to orbit our sun in an eccentric orbit. It was seen with the naked eye from Earth just before the start of our era and most likely photographed and observed by the IRAS satellite. That last passage is well documented and the dust cloud I mentioned left traces in the ice sheets of Greenland.
@@GeologyDude rock solid answer Dave 🪨