HOW THE ICE AGE CREATED THE HUDSON RIVER | New York State natural history | Hudson Valley New York
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- Опубліковано 29 лип 2020
- In this video I talk about how the Ice Age created the Hudson River thousands of years ago (which is not long at all in geologic time!). I am from and live in the Hudson Valley, New York (yes, there is more than just NYC), and I've always loved living here! I went to college to study geology and through this, learned all about the natural history of New York State. I wanted to share that with others, because I found it very interesting myself.
If you're interested in learning more about geology, watch my other videos and subscribe for when I post more in the future! :)
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Sources:
Image with paleo-coastline of eastern US: www.whoi.edu/oceanus/feature/...
Rayburn, J.A., Knuepfer, P.L.K., Franzi, D.A., 2005. A series of large, Late Wisconsinan meltwater floods through the Champlain and Hudson Valleys, New York State, USA. Quaternary Science Reviews, 24, 2410-2419.
Thieler, E.R., Butman, B., Schwab, W.C., Allison, M.A., Driscoll, N.W., Donnelly, J.P., Uchupi, E., 2007. A catastrophic meltwater flood event and the formation of the Hudson Shelf Valley. Paleoceanography, Paleoclimatology, Paleoecology, 246, 120-136.
Uchupi, E., Driscoll, N., Ballard, R.D., Bolmer, S.T., 2001. Drainage of late Wisconsin glacial lakes and the morphology and late quaternary stratigraphy of the New Jersey-southern New England continental shelf and slope. Marine Geology, 172, 117-145.
#glaciersinnewyork #newyorkstategeology #hudsonvalleygeology #hudsonrivervalleygeology #newyorkstatenaturalhistory #hudsonvalleynewyork #newyorkgeology #earthsciencenewyork #iceageinnewyork #hudsonriverestuary
I lived in Glen Rock N.J. There is a giant boulder (must be 20' high x 25-30' long) left by the last glacier. I took geology in college in Wisc. There were many moraines, lakes and Deep scratches in rocks on the upper portions of Green Lake Wisc.
My fascination with the Hudson Valley is 25 miles east of West Point NY. The iron mines of Sterling Forest. Before railroads did the hauling of the pig iron that was made there...the pigs were hauled by Oxen & 12'-16' wooden "wagons." The sides of which were 3'-3-1/2 ' tall.
Fabulous video. I grew up in Jersey City in the '50s and '60s, directly across from Ground Zero. As kids we swam, and fished in the Hudson ( before sewage treatment plants which is why I glow green at night).
Thank you! As a life-long denizen of the Hudson Valley, my curiosity about the geological (and historical) history of my valley is endlessly fascinating. I worked a temp job at NYSGS, and loved it.
Creative, entertaining and clear. Whatever your career path, you are a natural educator…
Awesome video! I live in Rochester NY and I’ve been fascinated by the geography (and geology) of the area since I was a kid. We live in such a cool part of the country, it’s great to see more people on here making videos about it! Thank you! Definitely subscribing.
Great video! I live in Rhinebeck. I love the geology in this area.
I love our Hudson River! Oh, on the Lenape name,the second to last syllable is accented hardest
Thank you for this video! I found it so helpful as I do research for a temporary mural I'm planning for the River Center at Dennings Point. Going to try and create part of that 2-mile high ice sheet :)
Eric, thank you so much this made me smile! Next time I'm in Beacon I'll have to check out the new mural, the ice sheet would be an awesome addition. Dennings Point is such a beautiful spot
Awesome job keep up the good work
Would you ever do a virtual chat for a middle school science class?
send me a message at geobeck19@gmail.com!
Awesome job, thank you!
Great video! :) Look forward to more!
Just saw this and it was very informative. I have interest in this topic and live on the west side of the river,... from the view in the intro l think we are quite close. always, farmer john
That’s so cool!
Very informative thank you!
thanks so much for watching!
Wicked cool! The Hudson River is so cool!
thank you Ali!! :)
Awesome video! Much 845 love from a neighbor to the east!
Great info, thank you! Currently up in the Adks and enjoying the geologic features, including the Hudson. What are your thoughts on the "one flood theory" that ended the last ice age coming from a comet or meteorite strike in the ice sheet?
thank you geo beck
Very well done. One detail is incorrect. As the environment heated up, the glacier did not move backward. It kept moving forward toward the ocean, but melted at a point further and further north as the environment warmed up. so if there were gouges in the land that the rivers eventually followed, they were created by the rocks when the glacier was still moving south.
I live in Scranton, PA, a few miles south of the continent's largest glacial "pothole", in Archbald, PA. This pothole had to have been created by rapidly flowing, very deep water. In this case, the water had to hundreds of feet deep, possibly flooding the entire, 3 mile wide Lackawanna River Valley. Can you elaborate on this subject? Coincidentally, Scranton is at most southern edge of the Laurentide ice sheet.
I thought the part about the river flowing both ways came from the fact that there can be two currents pushing in different directions simultaneously?
We have the same Tevas :') from one young female geo to another!
Awww!! I LOVE mine they are so comfy especially with socks after a long day of hiking
Heard some insane theories about the melting of the Northern ice sheet 10k-11k...Be glad it hasn't happened to the “Southern" Antarctica ice sheet yet or anytime soon....!i!
If it's not too late to ask, where can I find the map you show at 4:50? Thanks!!
Last lady said it was 2 miles above her head
Now it’s just two miles ?
How’d we lose 5 feet ?
Not even geologists claim the ice sheets. "scraped back north as they retreated" (4:13 in the video) but rather that they melted. Nor do they claim that the Hudson was formed by lakes draining through the sediment left by the glaciers. The Hudson cuts 16 miles through the Hudson Highlands over bedrock 1300 feet high which is all igneous granite, not sediment. Water cannot flow uphill to do such a thing, obviously. Rather it overtopped those high hills cutting down through them in what is called a water gap. This was a fierce rock filled debris flow since water alone would not do it. Given the height of this, the entire Hudson Valley over to the Shawangunks was flooded and that is the how those features were torn away as well. In fact the gap at the Mohonk Mountain house was a waterfall plunge pool where this water spilled over from the Hudson valley into the Roundout Valley with much of the water draining southward and forming the Delaware Water Gap as well. The sides of the Shawangunk cliffs were flood torn and the heights were all overtopped with draining water which produced so many boulders. What many geologists call glacial erratic boulders are identical to huge rounded boulders found in many deserts and other places where no glaciers are ever postulated. This includes Virginia, West Virginia, Kentucky, Georgia, Oklahoma, Arizona, California, and many other places worldwide like the Atacama desert of Chile, Saudi Arabia, Kenya, Namibia, Australia, and New Zealand to name a few. These were formed by debris flows of water and rock. Glaciers of solid ice cannot conform to bedrock's tightly curving surfaces causing the twisting curving striations found which are claimed to be glacial striations. Increasingly Canadian geologists have noted this and are changing their theories on the subject to that of flood debris flows which have left identical scouring in bedrock elsewhere on earth. These have even been found underwater where undersea debris flows have scoured bedrock in the same way, such as off Borneo. Places in the Pyrenees, northern Venezuela, northwest Montana , eastern Washington state, Death Valley, large areas of Utah, and near Santa Barbara California with such striations and boulders have now been identified as having been caused by debris flows. Even the map you showed of New York with epic flooding would not have been accepted until a few years ago. The drumlins in the Hudson Valley therefore could not have been caused by ice but by flood draining water near the very end of the drainage. Canadian geologists have already concluded that flooding caused drumlins to form in north central Saskatchewan and that 20,000 square miles were formed in as little as 16 days. Drumlins found elsewhere in New York were also flood formed and exhibit sedimentary banding their cross sections along with every boulder, cobble, pebble, and tiny stone particle being water rounded to a depth of hundreds of feet in many instances. Cross bedded silt overlies much so-called glacial moraine, and the claim is that this is wind-blown silt from the end of the ice age. But it is intermingled with cobbles and pebbles at the interface together with thin initial layers of silt overlain by more thin layers of cobbles and pebbles, followed by cross bedded silt. This is very common. The wind could not have blown the cobbles mixed with the silt. This cross bedding therefore could not have been aeolian but water-borne.
There is an interesting video of the underside of a glacier that shows as suspected, solid ice cannot conform to bedrock but rather is stiff and rides up over any hollow area with cavities underneath. Very revealing: ua-cam.com/video/njTjfJcAsBg/v-deo.html
Where my New Yorkers at
As I understand it, there is a fault that goes up the Hudson Valley. Up through the Ramapo Mountains, up through West Point, which are the Appalachians, etc. I believe this is the boundary between the Taconics and the old continent. Remember the Taconics were formed by subduction when the Atlantic closed up, prior to the Appalachian orogeny. Correct me if I am wrong.
In any case, when the glaciers retreated, they formed huge glacial lakes, as you stated. When one of them broke, i believe you can see evidence of this in the land at the Vanderbilt Mansion in Hyde Park. No doubt you know about the scablands in (Idaho?) where from above hills look like ripples on a beach. Well, at the Vanderbilt Mansion overview parking lot looking north, you can see parallel rolling ridges in the field below, that to me look like the same thing.
The Hudson was created by raging debris flow overtopping the Hudson Highlands and cutting down through them over 1300 feet deep and 16 miles long. Water does not flow up hill, so the truth was that at that depth it covered vast areas of land even overtopping the Catskills at the Shawangunks and tearing through them. The ripples you cite can be seen on a NYS Lidar map along with much more obvious torrential signs of tearing through the bedrock. You mentioned the channel scablands of Idaho (and northwest Montana and western Washington). Those formed at the same time by debris flows in that area. So you are basically correct however the ripples near the Vanderbilt Mansion were formed at steeper slopes and formed more chaotic wave forms. many geologists, especially Canadian are seeing more evidence of debris flows as the cause of drumlins, eskers, etc rather than glaciers.
@@paulbriggs3072 You seem to know what you are talking about, so let me run this by you. Glaciers can take centuries to melt. As there was probably a mile of ice above the Shawangunks and Catskills, there could have been many ice dams that came and went. Glacier Lake Albany may, and probably did, fill and empty many times, creating different shorlines and sand deposits. So, I do hot think the Hudson River Valley was entirely createted by debris flows. First there was a fault line running up it that later water and ice exploited. Glaciers came down the Valley because gravity and the flow of water puts them there. They did their thing to carve it . The debris flows, though possibly strong, would meet their match with the granite of Storm King and Breakneck Mountains. In the west, most of the rock is sandstone and more easily eroded by debris flows. Debris flows no doubt morved around soil, loose rock and light, porous rock. The point is, in some areas topography is formed by one event. I propose it took countless events to create the Hudson Valley and only the most recent events are still evident.
From the time i was an art student at SUNY New Paltz, I wondered how old the Shawangunks are? I thought they must be recent becase the cliff side is so sharply defined. I wonder if anyone know. My belief is that side was formed in the last million years, though the rock itself was formed hundreds of millions of years ago when the ancient Taconics eroded. I have seen maps of the stratigraphy(?) of the Hudson Valley. It's complicated.
Well there is a lot to debate, but one proof of debris flows through the Hudson rather than meltwater is that boulders the size of cars were found off the coast in the continental shelf off New York. Using the example of the channel scablands in Montana and Washington, not only those but the upper Columbia River gorge were created by flood debris flows in mere days and weeks. The size of the waterfalls in the gorges has been estimated at 20 times the size of the two falls at Niagara. These were all cut through solid basalt. @@russmartin4189
where would the most likely spots to find gold along the Albany ?I've been trying to figure out how to trace glacial deposits and gold in nys did you know there's a 250 year old law that says we cant keep any gold found in New York it belongs to the state ,,,,, its not illegal to look for it also not much historical information on gold mines for ny but if you look at the ststes that surround us there is information ,,, makes ya wonder ,,, have a nice day
I love how this information completely contradicts the bible.
100.000+ slaves were killed and dumped into the Hudson River after building the New York waterway thus the wealth of Dutchess County and the entire Hudson Valley area. It was the largest slave trade port in America. Most will omit this truth from their storytelling, because they have never been told and which person is going to look for the worst about themselves, I would have to dig up bones from the bottom of the Hudson to find who my great great great grandfather was. I am sure the native Americans have their story to tell as well. You are a nice innocent person, I am sure you just missed this fact.
That sounds like a bunch of bullshit.