Australia Tsunami Evidence Ep1 at Cape Leeuwin WA
Вставка
- Опубліковано 3 бер 2023
- Episode 1, Ground Zero. Cape Leeuwin, Augusta, and the first look at some Western Australia mega tsunami chevron ridge deposits, and a sand layer that covers the entire region.
Cape Leeuwin is the windiest place in Western Australia and is battered by winds and storms from both the Southern and Indian Oceans. Check out the tsunami chevrons sand ridge deposits, sand wave deposits, and salt tolerant tsunami wave splash zone vegetation.
WA Mega Tsunami Evidence
Evidence of what is being called a Mega Tsunami is found all along the coast of Western Australia and South Australia, with evidence stretching all the way to Tasmania. We examine the geography and geology of the West Australian coast in search of feature and deposits indicating tsunami inundations.
Credits:
tsun.sscc.ru/hiwg/Activity/Bry...
Scotese, C.R., 2016. PALEOMAP PaleoAtlas for GPlates and the PaleoData Plotter Program, PALEOMAP Project, www.earthbyte.org/paleomap-pal...
www.tsunamilab.cl/simulator
Google Maps / Google Earth:
SIO, NOAA, U.S. Navy, NGA, GEBCO Landsat / Copurnicus IBCAO U.S. Geological Survey PGC/NASA, CNES / Airbus, Maxar Technologies, TerraMetrics
Music generated by Mubert mubert.com/render
www.pexels.com/videos
orangefreesounds.com by / alexanderblumusic
exploreparks.dbca.wa.gov.au/d...
www.casa.gov.au/drones
www.margaretriversculpturepar...
We acknowledge the traditional custodians of the land, the Wadandi people of the Noongar nation and pay our respects to Elders, past, present and emerging.
Great video mate. Looking forward to watching the rest.
I've only heard about this mega Tsunami about 6 months ago and years ago i worked doing major earthworks in the Ellenbrook area and the ground there is just like soft beach sand and about a meter or so down we would find shells and ocean fossils which would explain a lot of things that I saw.
Great work on your video and i will be following as I'm a bit of a WA history fanatic
Hello Galoop. Thanks for the support. I have been doing a lot of exploring on foot around the Perth Metro area in the last few months and I am finding more evidence as I go. I see the same soft sand everywhere. I have collected sea shells in the sand in a couple of places. I have a few videos in the Metro region in production. Stay tuned.
ooops wrong profile. oh well you can see it's me.
Great drone footage and is informative. Lots of time and effort was put into this, so well done.
Thanks Chris.
Interesting information here and very well explained to and awesome video to
Thanks for the support Roger.
@@WATsunami your welcome
This wave is also evident on the shore of Madagascar.
really interesting looking forward to the next episode.
Stay Tuned!
Great video, given that the less salt tolerant, greater nutrition requiring leafy vegetation exists at a lower altitude than the heath vegetation, albeit only a few metres elevation change. Would you suggest the elevation change was created by salt and debris deposition at the edge of the wave as it lost momentum?
Look forward to seeing the results of salt concentration in soil samples either side of this divide- perhaps even a core sample to evaluate change over time
Yes I think the wave deposited the coarse sand layer at this point, I'm calling it the Sand Wave Snout, where the salt water wave ran out of momentum as the wave travelled over the land. The 5 meter sand layer appears to have been deposited over the mature soil. The land in the region is undulating with a relief between zero meters, sea level, and 225 meters above sea level. The are locations where the mature forest is at higher and lower elevations than the sand wave snout, but wherever the sand wave snout is found, it is always several meters above the mature soil. I have a few soil and sand samples from either side of the sand wave snout that I will be looking at in the next episode. It would be great to get a core sample at the same location and see if there is a vegetation layer at 5 meters below the sand layer, especially if it could then be carbon dated. Stay Tuned.
This is just wind erosion over thousands of years and vegetation adapting and moving with it.
The dunes I have been studying in the Margaret River Cape to Cape region are located on cliffs and higher ground, places where wind blown dunes cannot form. This is very well documented worldwide. At the Sculpture Park we found shell fragments 3.4km from the coast. Wind does not blow shell fragments any distance. I have proven this myself experimentally.
Hi, If the tsunami impacted this high up the Cape to Cape, the it must have devastated the Swan Coastal Plain. Can you comment on this please?
Hey Geoparks, yes I can confirm a lot of evidence in the Perth Metro area, such as Bold Park which has both chevrons and is coastal heath vegetation. Nearby is Mount Claremont, and the mount itself is actually a chevron. I have not been able to follow the sand wave snout so far in the metro region due to the human development. That's info for two up and coming episodes in a couple of months time though.
South of Perth, in the Bunbury region I have seen on the map but not yet visited to confirm on the ground a sand wave snout at 14km from current coastline, that's the furthest so far and another episode.
North at Two Rocks the sand wave snout is a few kilometres inland as well. I have been and looked but I am still gathering data in this region before I can confirm my findings. Episode later in the year.
What evidence do you have that the sand layers are not just regular wind blown sand dunes. One would expect tall trees in lower lying areas with better soil.
Much. 1, aeolian sand dunes do not form on the top of cliffs. 2, aeolian sand dunes are formed from the finest particles only, and yet we have collected sea shell fragments at the sculpture park, the only place we have permission to dig so far, see ep2. 3, there is no trail off of the sand layer, as would be expected for wind blown sand, see ep2. 4, the sand layer does not reach the very summit of Leeuwin and Boranup ridges, the karri trees grow at a slightly higher elevation, a place where we would not expect the richest soils. 5, the sand dune orientation bears no relationship to the prevailing winds. 6... ep7 comes partly from UK where I do visit wind blown dunes. There is a lot more evidence to come in future episodes.
@@WATsunamithanks for your reply. Afraid I'm not convinced. shells could have been deposited when the sea level was higher (millions of years ago), and later eroded. Wind can move large sand particles particularly in that part of WA where there are super strong winds.
@@sheriefkhorshid1951 Wind never moves larger particles. Have a look at my 4k time lapse wind blown sand video, and please view some other videos regarding sand dunes from other parts of the world. Also please have a look at my short video about cross banding. The sand layer is very recent geologically, a few thousand years old. At some point we will be doing some core samples at the sculpture park where there is a vegetation layer a few meters down. We will be carbon dating this. Also, please see my Tamala Limestone to see a water lain shell layer, it is very different from isolated shell fragments. I have many more videos in the planning and production stage to address these points.
You use the ASL rather than AHD?
Using ASL just makes it easier to understand. Also, along the coast of this region of Western Australia, the tidal range is almost negligible, so it's not going to be that different. I have not verified this however, that's just my thoughts. I will be speaking more about tides and how this relates to sand dune formation in a future episode.
soon as you put up the acknowledgement bullshit i switched off
No need for the aboriginal acknowledgement at start of the video,as a Aussie I can tell you we are sick to death of this Woke crap.
Lol😂