8:20 Interesting topic and a great explanation of how... wait....WTH happened to Michigan's UP? I remember seeing a map like this on Emperor Tigerstar's site. Other than that, I enjoyed this video.
Zircon crystals give us the most accurate dates yet, down to 100,000 years in some cases. I watch a lot of Nick Zentner videos where zircon dating is helping with figuring out Siletzia magmatism and the start of the Cascades. Very good but could have been longer. I hope I can find time to look at all your references if they are available online. Nick puts his on his website as some require a paywall.
Read this one first: Mueller, P. A., Frost, C.D., Bickford, M.E., and Stern, R.J., in press. USA’s Oldest Rock? A Simple Question with a Complex Answer. GSA Today. It will be out soon, no paywall
Uranium to lead path is complex. Only major statistics maybe can prove something. Every step downwards to lead can be affected by another decay or addition.
I'm often entranced by some momentous revelation about my childhood landscape--the eastern foothills of the Rockies, just west of Denver, now famously revered as the Morrison formation. To my pride of dinosaur bones emerging from the local, deep red sandstone, I'll seek cocktail party invites just to drop casual mention of the Earth's oldest rocks. Why, before long I myself might join this list of craggy antiquities. No poaching, please, but if you ask nice, I might share some fragments of my disintegrating left knee, soon due for a museum-quality surgical replacement. When your riveted friends want the specimen's genus & species, and they will if they're devoted enough to care about Greco-Latin binomial conventions, you may mumble something like "Patellasynoviasinestra Rex; a vigorous, sexually mature individual obviously injured during territorial combat but surviving in mortal agony until killed by tragic, and epic, volcanic eruption."
Good description of uranium age dating. The line that was supposed to point to the Upper Peninsula actually pointed to Wisconsin. Geology good. Geography bad.
The Watersmeet gneiss is shown in the Upper Peninsula of Michigan, just north of the Wisconsin-Michigan state line. Wisconsin almost got it, but not quite!😄
I don't think she cares much about geography. She says "Wyoming" but then displays an area that, while wholly including Wyoming, also includes parts of every state bordering Wyoming. But I'm sure the geological information is all correct . . .
Interesting to see just how many different rock forming epochs belonging to individual different early world continents have through many long story random processes come together to form our current continent. It's almost like life itself . If you trace back your DNA Gnome far enough , you've got a little bit of everyone/everything in you.
@@robertstern5681 maybe if you ingested those minerals from birth, one of the keys to longevity would be unearthed. Why knowing it rains is rhetorical.
Can you explain this for the layman. Or title this video a different way . That would warn non engineers to not waste their time on this tech and shop talk for pros video .
this is a nice little video, but i respectfully disagree with you completely. you glazed right over Alaska, only considering the rock that comprised the soil. HOWEVER, you completely neglected to mention those rocks that were not or at least have not always been part of the substrate. Of course, i mean the meteorological rocks that have fallen on the snow are more likely the oldest rocks anywhere on the face of the earth, aren't they? Please educate me if I am wrong.
I asked an AI (GroK) and invite you to do the same and see what you think of their answer... though, i must admit, i only asked GroK after i made that comment. I asked them "isn't it possible that meteorological rocks are older than any rocks on earth, even if we can't "date" them to be that old?"
To paraphrase President Clinton, it depends on your definition of "rock". I don't usually call meteorites "rocks" but they are.Yes, most meteorites are ~4.5 billion years old so the oldest rocks in the US or anywhere on Earth are meteorites. Perhaps we should have titled it "Where are the oldest rocks not from outer space in the USA?"
@@robertstern5681 all rocks came from space at one time. earth itself is a space rock. there's no such thing as an alien rock. all rocks have equal rights, and should be allowed to vote. and yes, rocks of different colors should be allowed to "date".
Of course meteorites are older than surface rocks on Earth as they have not been modified by weathering and formed when the Sun did, but they are not a part of the Earth's crust and if you watched the video we are talking about the crystalline basement rock, so your comment makes no sense.
Great explanation of rock dating and age! Thanks!
A lovely picture of a NightHawk at 4:57.
8:20 Interesting topic and a great explanation of how... wait....WTH happened to Michigan's UP? I remember seeing a map like this on Emperor Tigerstar's site. Other than that, I enjoyed this video.
Fun video. Thanks.
Thanks for the video. Very good explanation.
Zircon crystals give us the most accurate dates yet, down to 100,000 years in some cases. I watch a lot of Nick Zentner videos where zircon dating is helping with figuring out Siletzia magmatism and the start of the Cascades.
Very good but could have been longer. I hope I can find time to look at all your references if they are available online. Nick puts his on his website as some require a paywall.
Read this one first: Mueller, P. A., Frost, C.D., Bickford, M.E., and Stern, R.J., in press. USA’s Oldest Rock? A Simple Question with a Complex Answer. GSA Today. It will be out soon, no paywall
the oldest rocks are in Congress.
It’s called a mitchite, found in Kentucky
Alaska was a relatively recent addition.
Uranium to lead path is complex. Only major statistics maybe can prove something. Every step downwards to lead can be affected by another decay or addition.
Very good article!!
Luckily, scientists thought of that LONG before you did and account for it.
The Minnesota and Michigan rocks are the same rocks with a rift valley between them.
I'm often entranced by some momentous revelation about my childhood landscape--the eastern foothills of the Rockies, just west of Denver, now famously revered as the Morrison formation. To my pride of dinosaur bones emerging from the local, deep red sandstone, I'll seek cocktail party invites just to drop casual mention of the Earth's oldest rocks.
Why, before long I myself might join this list of craggy antiquities. No poaching, please, but if you ask nice, I might share some fragments of my disintegrating left knee, soon due for a museum-quality surgical replacement. When your riveted friends want the specimen's genus & species, and they will if they're devoted enough to care about Greco-Latin binomial conventions, you may mumble something like "Patellasynoviasinestra Rex; a vigorous, sexually mature individual obviously injured during territorial combat but surviving in mortal agony until killed by tragic, and epic, volcanic eruption."
The music degrades the presentation
Im not sure why they are all doing this. Content is enough by itself. No music aids in comprehension. Adding music does the opposite.
@@johnduffin9425 Most people feel exactly the opposite, which is why most programs have music. You guys are weird.
@ I am old.
Good description of uranium age dating. The line that was supposed to point to the Upper Peninsula actually pointed to Wisconsin. Geology good. Geography bad.
The Watersmeet gneiss is shown in the Upper Peninsula of Michigan, just north of the Wisconsin-Michigan state line. Wisconsin almost got it, but not quite!😄
I don't think she cares much about geography. She says "Wyoming" but then displays an area that, while wholly including Wyoming, also includes parts of every state bordering Wyoming. But I'm sure the geological information is all correct . . .
Interesting to see just how many different rock forming epochs belonging to individual different early world continents have through many long story random processes come together to form our current continent. It's almost like life itself . If you trace back your DNA Gnome far enough , you've got a little bit of everyone/everything in you.
Nice music.
Why is finding the oldest rock even important.
The average IQ board is the one over.
@@WH0oo... It's not, no more than understanding how life began or why is there rain.
@@robertstern5681 maybe if you ingested those minerals from birth, one of the keys to longevity would be unearthed. Why knowing it rains is rhetorical.
Informative, however the added noise is very monotonous and distracting!
Whole lot of assumptions to determine rock age indicates a lot of subjectivity involved.
not really. The same science that gave us the atomic bomb gives us the age of igneous rocks.
If you think assumptions are involved then you weren't listening in school. It's ok, the smart people did and are in charge.
@@filonin2 Oh I was listening, but I was listening to this guy ua-cam.com/video/lhjfajPdotA/v-deo.html
Lose the music
Can you explain this for the layman.
Or title this video a different way . That would warn non engineers to not waste their time on this tech and shop talk for pros video .
Stretch yourself a little and if you expect your information like baby food, you're not ready.
Shop talk for pros? I learned most of this is high school. This is INSANELY basic. I hope you were being sarcastic.
this is a nice little video, but i respectfully disagree with you completely. you glazed right over Alaska, only considering the rock that comprised the soil. HOWEVER, you completely neglected to mention those rocks that were not or at least have not always been part of the substrate. Of course, i mean the meteorological rocks that have fallen on the snow are more likely the oldest rocks anywhere on the face of the earth, aren't they? Please educate me if I am wrong.
I asked an AI (GroK) and invite you to do the same and see what you think of their answer... though, i must admit, i only asked GroK after i made that comment. I asked them "isn't it possible that meteorological rocks are older than any rocks on earth, even if we can't "date" them to be that old?"
To paraphrase President Clinton, it depends on your definition of "rock". I don't usually call meteorites "rocks" but they are.Yes, most meteorites are ~4.5 billion years old so the oldest rocks in the US or anywhere on Earth are meteorites. Perhaps we should have titled it "Where are the oldest rocks not from outer space in the USA?"
@@robertstern5681 all rocks came from space at one time. earth itself is a space rock. there's no such thing as an alien rock. all rocks have equal rights, and should be allowed to vote. and yes, rocks of different colors should be allowed to "date".
Of course meteorites are older than surface rocks on Earth as they have not been modified by weathering and formed when the Sun did, but they are not a part of the Earth's crust and if you watched the video we are talking about the crystalline basement rock, so your comment makes no sense.