[Rockhounds] Younger Dryas platinum anomaly reported from South Carolina - Open Access paper

[Tim Fisher]

This is an intense (and somewhat acrimonious) debate. I tend to land on the
opposite side.

https://www.sciencenews.org/article/younger-dryas-comet-impact-cold-snap 

-----Original Message-----
From: Rockhounds [mailto:rockhounds-bounces at rockhounds.drizzle.com] On
Behalf Of Paul
Sent: Wednesday, October 23, 2019 3:20 PM
To: Rockhound List
Subject: [Rockhounds] Younger Dryas platinum anomaly reported from South
Carolina - Open Access paper

New evidence that an extraterrestrial collision
12,800 years ago triggered an abrupt climate change for Earth, the
Conversation, October 22, 2019
https://theconversation.com/new-evidence-that-an-extraterrestrial-collision-
12-800-years-ago-triggered-an-abrupt-climate-change-for-earth-118244

the paper is:

Moore, C.R., M.J. Brooks, A.C. Goodyear, T.A.
Ferguson, A.G. Perrotti, S. Mitra, A. Listecki, B. King, D.J. Mallinson,
C.S. Lane, B. Shapiro, J. Knapp, A. West, D.L. Carlson, W. Wolbach, T.R.
Them, S.M. Harris, and S. Pyne-O???Donnell.
2019. Sediment Cores from White Pond, South Carolina, contain a platinum
anomaly, pyrogenic carbon peak, and coprophilous spore decline at 12.8 ka.
Scientific Reports volume 9, Article number: 15121 (2019)
https://www.nature.com/articles/s41598-019-51552-8

Regardless of how the platinum anomaly is interpreted, White Pond, a
Carolina Bay predates it and the Younger Dryas. Thus, the above paper
further supports the idea that the Carolina Bays are not connected to
Younger Dryas event as concluded by:

Schaetzl, R.J., Sauck, W., Heinrich, P.V., Colgan, P.M.
and Holliday, V.T., 2019. Commentary on Klokocnik, J., Kostelecky, and
Bezdek, A. 2019. The putative Saginaw impact structure, Michigan, Lake
Huron, in the light of gravity aspects derived from recent EIGEN 6C4 gravity
field model. Journal of Great Lakes Research 45: 12???20.

A related paper is:

Krause, T.R., Russell, J.M., Zhang, R., Williams, J.W.
and Jackson, S.T., 2019. Late Quaternary vegetation, climate, and fire
history of the Southeast Atlantic Coastal Plain based on a 30,000-yr
multi-proxy record from White Pond, South Carolina, USA. Quaternary
Research, 91(2), pp.861-880.

Yours

Paul H.


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