The Younger Dryas 'Event' revisited

[Ian Thomas]

Here's a pretty good piece about the Younger Dryas Impact Event.

The Comet Strike Theory That Just Won’t Die.
2024, March 5
www.nytimes.com/2024/03/05/magazine/younger-dryas-impact-hypothesis-comet.html

The new journal that's mentioned is here ..

Airbursts and Cratering Impacts
www.scienceopen.com/collection/9aae92f3-66ba-4b71-a74b-51b9995c56e5

Not much content yet - but then, it's early days.

My take? Well, Martin Sweatman has a video series on Youtube (somewhere?) that pretty much definitively debunks the debunkers. That is to say, the YD Impact did definitely take place.

The $64K question is, what long-term effects did it have - on the course of history, on the human race and much else?

[Ian Thomas]

Damn. The NYT article now comes up as paywalled . Didn't before.
Not to worry. A Duck-Duck query uncovers plenty alternative sites ..

duckduckgo.com/?t=ffab&q=The+Comet+Strike+Theory+That+Just+Won%E2%80%99t+Die+&ia=web

[vincent]

Mar 26, 2024 7:17:04 GMT 10 Ian Thomas said:

Well, Martin Sweatman has a video series on Youtube (somewhere?) that pretty much definitively debunks the debunkers. That is to say, the YD Impact did definitely take place.

The $64K question is, what long-term effects did it have - on the course of history, on the human race and much else?

This Martin Sweatman?

www.youtube.com/results?search_query=Martin+Sweatman

[Ian Thomas]

Yeah, that's the dude.
Okay, so ... there are folks who will perceive a few red flags. He seems to be back-slappin' good-buddies with a certain Graham Hancock, for one thing.
But leave that aside for the mo'.

He has a set of vids that present a comprehensive examination of the publications, pro and con, v/v the YD Impact Event. The literature is getting voluminous by now.
The first vid is here -->

The Younger Dryas impact debate: part 1 - Firestone 2007

The rest of his stuff is here, including the YD reviews mixed in. Guess you just have to rummage thru and pick'em out.

Prehistory Decoded

www.youtube.com/@prehistorydecoded4454/videos

[Ian Thomas]

Came upon this paper which definitively links the Younger Dryas onset with traces of cosmic impact in Europe. Any reasonable person would have to concede there's no room for denial of the impact. But does that mean there was, ipso facto, a "super civilisation" extant in the late Ice Age, a-la Hancock? Err ... no.

Mahaney, W. C., Somelar, P., & Allen, C. C. R. (2023).
Late Pleistocene Glacial-Paleosol-cosmic record of the Viso Massif—France and Italy: New evidence in support of the Younger Dryas boundary (12.8 ka).
International Journal of Earth Sciences, 112(1), 217–242.
doi.org/10.1007/s00531-022-02243-9
Mount Viso (3841 m asl), one of the highest mountains in the Western European Alps carries not only a glacial record following the end of the last glacial (Late Glacial-LG), but also a cosmic airburst record at approximately ~ 12.8 ka, presumably the black mat, that adds to a worldwide record of biomass burning which is considered to have triggered the Younger Dryas (YD) cooling episode.

We combine the stratigraphic evidence of staggered Late Glacial retreat on both sides of the continental divide—faster in the upper Guil, possibly slower in the upper Po valleys—followed by superposed YD moraine overlapping LG in France, and stillstand of LG with overlapping YD in Italia with recovered cosmic evidence.

Previously, we studied selected areas on the Viso massif, but here we expand on newly combined stratigraphic-cosmic airburst evidence, the latter lying in an uneven distribution of welded, melted and air-quenched clasts of pebble to sand-silt size in paleosols, all of which carry variable high to low REEs, high base metals, partial Pt and Ir coated surfaces indicative of nuclear-cosmic events.

One of the outstanding conclusions of this research is the indisputable close correspondence of widespread cosmic airburst evidence with the YDB (Younger Dryas boundary) and onset of the YD. Thus, a test of catastrophism, firmly embedded in surficial sediment, yields some important underpinnings of Earth’s climatic history.

* Damn. Paywalled.
   And as yet, it's not available at Sci-Hub .. sci-hub.ee/

[vincent]

edit: Damn, Ian! I had to look up the meaning of ipso facto.

So did I!

[Ian Thomas]

Whoops. Sorry. My bad -> edited when should have replied.

Note to self: NEVER do anything before morning coffee.