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



Saturday 26 January 2019

Earth's oldest rock was found on the moon ?? 26JAN2019

 Earth's oldest rock was found on the moon ??

Earth's oldest rock was found by Apollo 14 astronauts -- on the moon. Ashley Strickland, CNN, January 24, 2019
https://www.cnn.com/2019/01/24/world/earth-oldest-rock-moon/index.html

We May Have Found Earth's Oldest Known Rock. It Was on The Moon. Michelle Starr, January 25, 2019
https://www.sciencealert.com/earth-s-oldest-rock-may-have-been-found-it-was-um-on-the-moon

The paper is:

J.J. Bellucci, A.A. Nemchin, M. Grange, K.L. Robinson, G. Collinse, M.J. Whitehouse, J.F. Snape, M.D.Norman D.A.Krin
Terrestrial-like zircon in a clast from an Apollo 14 breccia
Earth and Planetary Science Letters. Volume 510, Pages 173-185
https://www.sciencedirect.com/science/article/pii/S0012821X19300202

Yours,

Paul H.

Fossil Hunting on the Moon in Terrestrial Meteorites 26JAN2019

Fossil Hunting on the Moon in Terrestrial Meteorites

Burchell, M.J., McDermott, K.H., Price, M.C. and Yolland, L.J., 2014. Survival of fossils under extreme shocks induced by hypervelocity impacts. Phil. Trans. R. Soc. A, 372(2023), p.20130190.
https://royalsocietypublishing.org/doi/full/10.1098/rsta.2013.0190

https://core.ac.uk/download/pdf/30704804.pdf

The abstract states:
“This is the first demonstration that fossils can survive and be transferred from projectile to target in hypervelocity impacts, implying that
it is possible that, as suggested by other authors, terrestrial rocks ejected from the Earth by giant impacts from space, and which then strike the Moon, may successfully transfer terrestrial fossils to the Moon.”

Related papers are:

Armstrong, J.C., Wells, L.E., and Gonzales, G. 2002
Rummaging through Earth’s attic for remains of ancient life. Icarus 160, 183–196. (doi:10.1006/icar.2002.6957)
https://arxiv.org/abs/astro-ph/0207316

http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.338.3602&rep=rep1&type=pdf


Crawford, I.A., Baldwin, E.C., Taylor, E.A., Bailey, J.A. and Tsembelis, K., 2008. 
On the survivability and detectability of terrestrial meteorites on the Moon. Astrobiology, 8(2), pp.242-252.
https://core.ac.uk/download/pdf/141213907.pdf

Asphaug, E., 2013. Planetary science: Go and catch a falling star.
Nature Geoscience, 6(6), p.422.
https://repository.asu.edu/items/18264

Yours,

Paul H.

Saturday 19 January 2019

Large Paleozoic Impact Crater Strewn Field in the Rocky Mountains (Open Access ) 19JAN2019

Large Paleozoic Impact Crater Strewn Field in the Rocky Mountains (Open Access )
 
Below is an interesting open access paper.

Kenkmann, T., Sundell, K.A. and Cook, D., 2018. 
Evidence for a large Paleozoic Impact Crater Strewn Field in the Rocky Mountains.
Scientific reports, 8(1), p.13246.
https://europepmc.org/articles/pmc6125292

https://www.nature.com/articles/s41598-018-31655-4/

Yours,

Paul H.