Including Original "Paul H. Letters" Copyright © 1996-2024 Paul V. Heinrich / website © 1996-2024 Dirk Ross - All rights reserved.



Wednesday, 20 November 2024

Recent Discussion of Younger Dryas impact Hypothesis 20NOV2024

 Recent Discussion of Younger Dryas impact Hypothesis

Hi,

Unsurprisingly, Sweatman, Powell, and West have replied to Holliday et
al. (2023)’s refutation of the YDIH with Sweatman et al. (2024). In response,
Holliday and associates replied with Holliday et al. (2024) and an open access
supplementary material, YDIH Skeptics (2024).

The publications are:

Holliday, V.T., Daulton, T.L., Bartlein, P.J., Boslough, M.B., Breslawski, R.P.,
Fisher, A.E., Jorgeson, I.A., Scott, A.C., Koeberl, C., Marlon, J.R. and
Severinghaus, J., 2023. Comprehensive refutation of the Younger Dryas
Impact Hypothesis (YDIH). Earth-Science Reviews, 247, p.104502.

Sweatman, M.B., Powell, J.L. and West, A., 2024. Rejection of Holliday
et al.'s alleged refutation of the Younger Dryas impact hypothesis.
Earth-Science Reviews, 258, p.104960.

Holliday, V.T., Daulton, T.L., Bartlein, P.J., Boslough, M.B., Breslawski, R.P.,
Fisher, A.E., Jorgeson, I.A., Scott, A.C., Koeberl, C., Marlon, J.R. and
Severinghaus, J., 2024. Rebuttal of Sweatman, Powell, and West's “Rejection
of Holliday et al.'s alleged refutation of the Younger Dryas Impact Hypothesis”.
Earth-Science Reviews, 258, p.104961.

YDIH Skeptics. 2024. Additional material related to our rebuttal of Sweatman,
Powell, and West's comment on Holliday, et al. (2023) Comprehensive refutation
of the Younger Dryas Impact Hypothesis (YDIH), Earth-Science
Reviews vol. 247 https://doi.org/10.1016/j.earscirev.2023.104502. Zenodo.

I wonder how much time and money has been spent researching, debating, writing,
and publishing on this topic.

Yours,
Paul

Tuesday, 19 November 2024

Meteorite found in a drawer in 1929 contains ancient evidence of liquid water on Mars 18NOV2024

 Meteorite found in a drawer in 1929 contains ancient evidence of liquid water on Mars

Meteorite found in a drawer in 1929 contains ancient evidence of liquid water on Mars
The 742-million-year-old rock was ejected into space by an asteroid impact.
Andrew Paul, Popular Science, November 14, 2024

Tremblay, M.M., Mark, D.F., Barfod, D.N., Cohen, B.E., Ickert, R.B., Lee, M.R., 
Tomkinson, T. and Smith, C.L., 2024. Dating recent aqueous activity on Mars. 
Geochemical Perspectives Letters. open access

Yours,

Paul H.

Tuesday, 5 November 2024

Haasttse-baad Tessera Ring Complex: A Valhalla-Type Impact Structure on Venus? 05NOV2024

Haasttse-baad Tessera Ring Complex: A Valhalla-Type Impact Structure on Venus?

A Hidden Breed of Impact Craters Has Been Lurking on Venus Undetected
Michelle Starr, Science Alert, November 5, 2024

Study of Venus's Haasttse-baad Tessera suggests formation by two large impacts
PhysOrg, November 5, 2024

López, I., Bjonnes, E. and Hansen, V.L., 2024. Haasttse‐baad Tessera Ring
Complex: A Valhalla‐Type Impact Structure on Venus?. Journal of Geophysical
Research: Planets, 129(10), no .e2023JE008256. open access

Yours,

Paul H.

Sunday, 3 November 2024

Ancient rocks may be dark matter detector 03NOV2024

Ancient rocks may be dark matter detector

Ancient rocks may bring dark matter to light
With new imaging capabilities, the first successful
dark-matter detector might be some old rock.
Virgina Tech, Kelly Izlar, October 30, 2024

Science has found its first candidate for a dark-matter detector
It’s a really old rock.  Dark matter is a mysterious, invisible
substance makes up more than 80 percent of all matter in the universe.
Julia Musto, The Guardian, November 1, 2024

Yours,

Paul H.