Including Original "Paul H. Letters" Copyright © 1996-2016 Paul V. Heinrich - All rights reserved.



Monday, 29 August 2016

Paleochannels Suggest Warm, Wet Ancient Mars

Paleochannels Suggest Warm, Wet Ancient Mars

Fossilized rivers suggest warm, wet ancient Mars
University College London, August 23, 2016
http://phys.org/news/2016-08-fossilized-rivers-ancient-mars.html
https://www.sciencedaily.com/releases/2016/08/160823135135.htm

The paper is:

Davis, J. M., M. Balme, P. M. Grindrod, R. M. E. Williams and
S. Gupta, 2016, Extensive Noachian fluvial systems in Arabia
Terra: Implications for early Martian climate. Geology.
First published online August 2016, doi: 10.1130/G38247.1
http://geology.gsapubs.org/content/early/2016/08/23/G38247.1.abstract

Yours,

Paul H

Saturday, 27 August 2016

Have Martian Fossils Been Obliterated by Meteorite Impacts ?

Have Martian Fossils Been Obliterated by Meteorite Impacts ?

Have signs of Martian life been obliterated by meteorite
blasts? Daily Mail, August 9, 2016
http://www.dailymail.co.uk/sciencetech/article-3731884/Have-signs-Martian-life-obliterated-meteorite-blasts-Extreme-pressures-impact-wipe-organic-compounds-study-finds.html

Meteors might have wiped out evidence of life on
Mars in the places we’re looking by Josh Hrala
Science Alert, August 12, 2016
http://www.sciencealert.com/impact-craters-are-not-the-best-places-to-look-for-signs-of-life-on-mars-study-finds

Evidence of Martian life could be hard to find in
some meteorite blast sites, Imperial College London
http://www3.imperial.ac.uk/newsandeventspggrp/imperialcollege/newssummary/news_8-8-2016-12-31-10
http://www.sciencenewsline.com/news/2016080815080028.html
https://www.sciencedaily.com/releases/2016/08/160808091250.htm

The paper is:

Montgomery, W., G. D. Bromiley, and M. A. Sephton.
2016, The nature of organic records in impact
excavated rocks on Mars. Scientific Reports.
Vol. 6, no. 30947 DOI: 10.1038/srep30947
http://www.nature.com/articles/srep30947

Another recent article about meteorite impacts is:

How Often do Meteorites Hit the Earth?
Space.com by Samantha Mathewson, August 10, 2016
http://www.space.com/33695-thousands-meteorites-litter-earth-unpredictable-collisions.html

Yours,

Paul H.

Thursday, 25 August 2016

We Have A Neighbor

We Have A Neighbor

In "We Have A Neighbor," Mrs. Webb wrote:

"Hi,"We have a neighboring planet
only 4 light years away. It's
small, earth-like, in the
habitable zone of its star,
yada-yada.

Everybody's going crazy...

Me too."

The paper is:

Anglada-Escudé, G., P. J. Amado, J. Barnes, and others, 2016, A
terrestrial planet candidate in a temperate orbit around Proxima
Centauri. Nature. vol. 536, pp. 437–440 (25 August 2016) doi:10.1038/nature19106
http://www.nature.com/nature/journal/v536/n7617/full/nature19106.html

PDF file at
https://www.eso.org/public/archives/releases/sciencepapers/eso1629/eso1629a.pdf

Yours,

Paul H.

Wednesday, 24 August 2016

New methodology for Estimating Size of Impact Craters

New methodology for Estimating Size of Impact Craters

New methodology provides better size estimates of meteorite
impact craters. University of Western Ontario, August 8, 2016
http://mediarelations.uwo.ca/2016/08/05/new-methodology-provides-better-size-estimates-meteorite-impact-craters/
http://phys.org/news/2016-08-methodology-size-meteorite-impact-craters.html

The paper is:

Osinski, G. R., and L. Ferrière, 2016, Shatter cones: (Mis)understood?
Science Advances. Science Advances. Vol. 2, no. 8, e1600616
DOI: 10.1126/sciadv.1600616
http://advances.sciencemag.org/content/2/8/e1600616

Yours,

Paul H.

Where are all the Large impact Craters on Ceres?

Where are all the Large impact Craters on Ceres?

Where are all the large impact craters on Ceres? July 28, 2016
http://www.nasa.gov/feature/jpl/the-case-of-the-missing-ceres-craters
https://www.middaydaily.com/ceres-huge-impact-craters/25755/
http://www.extremetech.com/extreme/232532-where-are-all-the-large-impact-craters-on-ceres

The paper is:

Marchi, S., A. I. Ermakov, C. A. Raymond, and many others, 2016
The missing large impact craters on Ceres Nature Communications.
vol. 7, Article number: 12257, doi:10.1038/ncomms12257
http://www.nature.com/ncomms/2016/160726/ncomms12257/full/ncomms12257.html

Yours,

Paul H.

Saturday, 20 August 2016

60Iron Found in Magnetofossils: Evidence of Supernova?

60Iron Found in Magnetofossils: Evidence of Supernova?

Supernova Ashes Found in Fossils Hint at Extinction Event
By Charles Q. Choi, Space.com, August 18, 2016
http://www.space.com/33777-supernova-ash-found-in-fossils.html

Scientists Identify Supernova Ashes in Magnetic Fossils
Sputnik.News, http://sptnkne.ws/bWPg
http://sputniknews.com/world/20160819/1044417107/supernova-linked-to-extinction.html

“Supernova ash has been found in fossils created by bacteria
here on Earth. The discovery, published on August 10 in the
Proceedings of the National Academy of Sciences journal,
suggests a link between an explosion of a star and an
extinction event on our planet over two million years ago.”

The paper is:

Ludwiga, P., S. Bishopa, R. Eglib, et al., 2016, Time-resolved
2-million-year-old supernova activity discovered in Earth’s
microfossil record. Proceedings of the National Academy of
Sciences. vol. 113 no. 33, pp. 9232–9237, doi: 10.1073/pnas.1601040113
http://www.pnas.org/content/113/33/9232.abstract?sid=b595085e-c6e9-4588-9cb5-6f7364cc2ceb

Yours,

Paul H.

Thursday, 18 August 2016

Recent Articles About Fossil Hunting Laws and Regulations- Canada

Recent Articles About Fossil Hunting Laws and Regulations - Canada Dinosaurs

Below are a couple of articles about laws and regulations
for fossil hunting that raise either the same or similar issues
that concern collecting meteorites.

Welcome to Alberta, Canada: Socialist Dinosaur Paradise Inverse,
(The bones belong to the people) Jacqueline Ronson, August 17, 2016
https://www.inverse.com/article/19840-alberta-canada-dinosaur-paleontology-fossil-collection-laws-socialism

4 Weird True Crime Stories From the Dinosaur Fossil Black Market
(Unpredictable laws and high demand create the perfect environment
for illegal enterprise) by Jacqueline Ronson, Inverse, May 22, 2016.
https://www.inverse.com/article/15914-4-weird-true-crime-stories-from-the-dinosaur-fossil-black-market

The articles, do not necessarily represent my views. If you need
comment about them, either post your comments as a reply to
this thread or correspond with the authors of the article.

Finally, an article that is unrelated to meteorites, but still quite
interesting.

Joel, L. (2016), How did fragile early microbes become fossils?,
Eos, 97, doi:10.1029/2016EO057519. Published on 12 August 2016.
https://eos.org/articles/how-did-fragile-early-microbes-become-fossils
https://eos.org/current-issues

(During the Ediacaran period more than a half billion years ago,
clay mineral coats likely shielded delicate remains, helping
them become exquisitely preserved in rock, recent experiments
suggest.)

Yours,

Paul H.

Saturday, 16 July 2016

Soot May Have Killed off the Dinosaurs and Ammonites

Soot May Have Killed off the Dinosaurs and Ammonites

Soot May Have Killed off the Dinosaurs and Ammonites
Tohoku University, July 15, 2016
http://www.eurekalert.org/pub_releases/2016-07/tu-smh071416.php
https://www.sciencedaily.com/releases/2016/07/160715113558.htm

"A new hypothesis on the extinction of dinosaurs and
ammonites at the end of the Cretaceous Period has
been proposed by a research team."

Darkness Falls On the Dinosaurs
By Marcia Bjornerud , New Yorker, July 14, 2016
http://www.newyorker.com/tech/elements/darkness-falls-on-the-dinosaurs

The paper is:

Kaiho, K/. N. Oshima, K.Adachi, Y. Adachi, T. Mizukami,
M. Fujibayashi, and R. Saito, 2016, Global climate change
driven by soot at the K-Pg boundary as the cause of the
mass extinction. Scientific Reports, 2016; 6: 28427
DOI: 10.1038/srep28427
http://www.nature.com/articles/srep28427

A slightly related article is:

Small town in Mexico honors meteorite that
changed life on Earth. Latino Fox News, July 05, 2016
http://latino.foxnews.com/latino/news/2016/07/05/small-town-in-mexico-honors-meteorite-that-changed-life-on-earth

Yours,

Paul H.

A Blind Test of the Younger Dryas Impact Hypothesis

A Blind Test of the Younger Dryas Impact Hypothesis

Holliday V, Surovell T, Johnson E (2016) A Blind Test of the
Younger Dryas Impact Hypothesis. PLoS ONE 11(7): e0155470.
doi:10.1371/journal.pone.0155470
http://journals.plos.org/plosone/article?id=10.1371%2Fjournal.pone.0155470
http://www.ncbi.nlm.nih.gov/pubmed/27391147

An earlier paper is;

Holliday, V. T., T. A. Surovell, D. J. Meltzer, D. K. Grayson, and
M. Boslough, 2014, The Younger Dryas impact hypothesis: A
cosmic catastrophe. Journal of Quaternary Science 29:515-530.
http://www.uwyo.edu/surovell/pdfs/jqs%202014.pdf
http://www.uwyo.edu/surovell/

and "A Cosmic Catastrophe: the Great Clovis comet Debate" at
http://www.argonaut.arizona.edu/Clovis_Comet_Debate.html

Yours,

Paul H.

Friday, 15 July 2016

Help discover supernovae from Pan-STARRS1

Help discover supernovae from Pan-STARRS1

Hi,

There is a new crowd source research project about searching
for supernovae. It is "Supernova Hunters" at
https://www.zooniverse.org/projects/dwright04/supernova-hunters .

This project is part of Zooniverse at https://www.zooniverse.org .

"The Zooniverse provides opportunities for people around
the world to contribute to real discoveries in fields ranging
from astronomy to zoology. Welcome to the largest online
platform for collaborative volunteer research."

Yours,

Paul H.

2016 The THIRD Year of "CERTAIN Uncertainty" ™ / Meteors, Asteroids, Comets, and MORE!!

Thursday, 14 July 2016

Evidence of Quaternary Supernova Buffeting Earth

Evidence of Quaternary Supernova Buffeting Earth

Ancient supernovae buffeted Earth's biology with
radiation dose, researcher says, July 11, 2016
https://today.ku.edu/2016/07/06/research-ancient-supernovae-were-close-enough-buffet-biology-earth-radiation-dose
http://phys.org/news/2016-07-ancient-supernovae-buffeted-earth-biology.html
http://www.space.com/32631-radioactive-iron-supernova-apollo-moon-rocks.html

Fimiani, L., D. L. Cook, T. Faestermann, J. M.
Gómez-Guzmán, K. Hain, G. Herzog, K. Knie,
G. Korschinek, P. Ludwig, J. Park, R. C. Reedy,
and G. Rugel, 2016, Interstellar Fe60 on the
Surface of the Moon. Phys. Rev. Lett. 116, 151104
http://journals.aps.org/prl/abstract/10.1103/PhysRevLett.116.151104

Yours,

Paul H

Monday, 11 July 2016

Sunday, 10 July 2016

Talks About the Co-Evolution of the Geosphere and the Biosphere - Robert Hazen

Talks About the Co-Evolution of the Geosphere and the Biosphere - Robert Hazen

Talk that touch on the mineralogy of meteorites, Earth, and other planets.

1. Mineralogical Co-Evolution of the Geo- and Biospheres
https://www.youtube.com/watch?v=PcktDStIfiQ

"Dr. Robert Hazen, George Mason University, talks about the evolution of minerals on Earth, and other planets."

2. Robert Hazen -- The Co-Evolution of the Geosphere and the Biosphere, Linus Pauling
Memorial Lectures, February 15th, 2013
https://www.youtube.com/watch?v=D89-05ZKh2Y

Yours,
Paul H.

Talks About the Co-Evolution of the Geosphere and the Biosphere - Robert Hazen

Talks About the Co-Evolution of the Geosphere and the Biosphere - Robert Hazen

Talk that touch on the mineralogy of meteorites, Earth, and other planets.

1. Mineralogical Co-Evolution of the Geo- and Biospheres
https://www.youtube.com/watch?v=PcktDStIfiQ

"Dr. Robert Hazen, George Mason University, talks about the evolution of minerals on Earth, and other planets."

2. Robert Hazen -- The Co-Evolution of the Geosphere and the Biosphere, Linus Pauling
Memorial Lectures, February 15th, 2013
https://www.youtube.com/watch?v=D89-05ZKh2Y

Yours,
Paul H.

Thursday, 7 July 2016

Giant Impact May Have Created Mars’ Tiny Moons

Giant Impact May Have Created Mars’ Tiny Moons

How a missing moon could explain Mars's mysterious little satellites Scientists have long been puzzled by Mars's strange little moons, Phobos and Deimos. But perhaps a long-gone moon could help unravel the mystery, suggests new research by Eva Botkin-Kowacki, Christian Science Monitor, July 4,2016
http://www.csmonitor.com/Science/2016/0704/How-a-missing-moon-could-explain-Mars-s-mysterious-little-satellites

A giant impact may have created Mars’ tiny moons by Katherine Lindemann, researchgate, July 4, 2016
https://www.researchgate.net/blog/post/a-giant-impact-may-have-created-mars-tiny-moons

Rosenblatt, P., S. Charnoz, K. M. Dunseath, M. Terao-Dunseath, A. Trinh, R. Hyodo, H. Genda, and S. Toupin, 2016, Accretion of Phobos and Deimos in an extended debris disc stirred by transient
moons Nature Geoscience (2016) doi:10.1038/ngeo2742 Received 18 January 2016 Accepted 18 May 2016
http://www.nature.com/ngeo/journal/vaop/ncurrent/full/ngeo2742.html

I wonder if pieces of debris from this collision could have been sent towards Earth?

Yours,

Paul H.

Wednesday, 6 July 2016

Volcanoes and Asteroid Impact Linked to K-Pg Mass Extinction ??

Volcanoes and Asteroid Impact Linked to K-Pg Mass Extinction ??

Warming pulses in ancient climate record link volcanoes,
asteroid impact and dinosaur-killing mass extinction,
University of Michigan, July 5, 2016
http://phys.org/news/2016-07-pulses-ancient-climate-link-volcanoes.html
http://ns.umich.edu/new/releases/24010-warming-pulses-in-ancient-climate-record-link-volcanoes-asteroid-impact-and-dinosaur-killing-mass-extinction

The open-access paper is:

Petersen, S. V., A. Dutton, and K. C. Lohmann, 2016, End-
Cretaceous extinction in Antarctica linked to both Deccan
volcanism and meteorite impact via climate change. Nature
Communications 7, Article number: 12079 doi:10.1038/ncomms12079
Received 31 December 2015 Accepted 27 May 2016 Published 05 July 2016
http://phys.org/journals/nature-communications/

A related open-access paper is:

Witts, J. D., R. J. Whittle, P. B. Wignall, J. A. Crame, J. E. Francis,
R. J. Newton, and V, C. Bowman, 2016, Macrofossil evidence
for a rapid and severe Cretaceous–Paleogene mass extinction
in Antarctica. Nature Communications 7, Article number: 11738
doi:10.1038/ncomms11738 Received 17 August 2015
Accepted 26 April 2016 Published 26 May 2016
http://www.nature.com/ncomms/2016/160526/ncomms11738/full/ncomms11738.html

Yours,

Paul

Tuesday, 5 July 2016

The “Great Expectations Syndrome” and Mass Extinctions

The “Great Expectations Syndrome” and Mass Extinctions

Below is an interesting open-access paper about mass extinctions.

Racki, G., 2012, The Alvarez impact theory of mass extinction; limits to its applicability and the “great expectations syndrome”.
Acta Palaeuntulugica Polonica. vol. 57, no. 4, pp. 681–702.
Abstract: http://www.bioone.org/doi/abs/10.4202/app.2011.0058
PDF file: http://www.bioone.org/doi/pdf/10.4202/app.2011.0058

Yours,

Paul H.

Sunday, 3 July 2016

New Publications About Younger Dryas Black Mats

New Publications About Younger Dryas Black Mats

Below are a couple of publications that add more background information relative to the with the Younger Dryas Impact controversy.

Erin Harris-Parks, 2016, The micromorphology of
Younger Dryas-aged black mats from Nevada,
Arizona, Texas and New Mexico. Quaternary
Research. vol. 85, no. 1, pp. 94–106.
http://www.sciencedirect.com/science/article/pii/S0033589415001131
http://adsabs.harvard.edu/abs/2016QuRes..85...94H

Erin Harris-Parks, 2014, The micromorphology of
Younger Dryas-aged black mats from Nevada,
Arizona, Texas and New Mexico. Unpublished MS
thesis, Department of Geosciences, Univ. of Arizona
http://www.geo.arizona.edu/Antevs/geos_ths.html
http://www.geo.arizona.edu/Antevs/Theses/HarrisParks2014.pdf

Yours,

Paul H.

Wednesday, 29 June 2016

Opal Discovered in Antarctic Meteorite

Opal Discovered in Antarctic Meteorite

Opal-Studded Meteorite Hints at Origins of Earth's Water
By Nola Taylor Redd, Space.com, June 27, 2016
http://www.space.com/33276-opal-pieces-found-in-antarctica-meteorite.html

New Meteorite Offers Clues About the Origins of Life on
Earth By Sophie Kleeman, Gizmodo, June 7, 2016
http://gizmodo.com/this-opal-studded-meteorite-offers-clues-about-the-orig-1782682303

Opal discovered in Antarctic meteorite
Royal Astronomical Society (RAS), June 27, 2016
https://www.sciencedaily.com/releases/2016/06/160627095939.htm
https://www.ras.org.uk/news-and-press/2873-opal-discovered-in-antarctic-meteorite
https://nam2016.org/press-releases/84-opal-discovered-in-antarctic-meteorite-ras-pr-16-31-nam-5-embargoed

Oxygen Isotopes and Origin of Opal in an Antarctic Ureilite
by Downes H. Beard A. D. Franchi I. A. Greenwood R. C.
79th Annual Meeting of the Meteoritical Society (2016) [#6141]
http://www.hou.usra.edu/meetings/metsoc2016/pdf/6141.pdf
http://karmaka.de/?p=9173

Yours,

Paul H.




Dinosaur Eggs, Meteorites, Or Signs of an Ancient Civilisation?

Dinosaur Eggs, Meteorites, Or Signs of an Ancient Civilisation?

It is strange that whoever wrote the headline even considered that these concretions might be either
meteorites or dinosaur eggs. I guess those were added simply to get people to read the article.

Dinosaur eggs, meteorites, signs of an ancient civilisation:what are these giant balls? By Ann Liesowska, Siberian times Found 30 metres underground at a coal mine, they're dubbed 'Jurassic pearls' or the marbles of a Siberian colossus.
http://siberiantimes.com/other/others/features/f0237-dinosaur-eggs-meteorites-signs-of-an-ancient-civilisation-what-are-these-giant-balls/

Siberia's 'Jurassic Pearls' Sign of Ancient Civilization; Giant Balls Stun Locals by Jessica F, Nature world News,
http://www.natureworldnews.com/articles/24329/20160628/siberias-jurassic-pearls-sign-of-ancient-civilization-giant-balls-stun-locals.htm

Are Siberia's 'Jurassic Pearls' the remains of an ancient civilisation? Bizarre colour-changing stones leave locals stumped by Will Stewart, Daily Mail, June 27, 2016
http://www.dailymail.co.uk/sciencetech/article-3662007/Are-Siberia-s-Jurassic-Pearls-remains-ancient-civilisation-Bizarre-colour-changing-stones-leave-locals-stumped.html

For some pseudo-eggs, look at:
Dinosaur eggs' discovered in Chechnya (Photos, Video)
RT News, https://www.rt.com/news/chechnya-dinosaur-eggs-russia-333/

Huge Dinosaur Eggs Found in Chechnya, Scientists Claim
April 17, 2012 By Lama Hasan
http://abcnews.go.com/blogs/headlines/2012/04/huge-dinosaur-eggs-found-in-chechnyascientists-claim/

Other web pages about meter-scale concretions.

1. Prehistoric UFOs? (No, Meter-scale Concretions)
Hall of Ma'at - http://www.hallofmaat.com/read.php?1,604622,604622#msg-604622

2. Archaeologist claims boulder is the world's oldest man-made sphere, Hall of Ma'at
http://www.hallofmaat.com/read.php?1,604086,604154#msg-604154

Yours,

Paul H.