Including Original "Paul H. Letters" Copyright © 1996-2017 Paul V. Heinrich - All rights reserved.



Sunday, 19 March 2017

Another Younger Dryas Impact Hypothesis Paper

Another Younger Dryas Impact Hypothesis Paper

The discussion continues.

Discovery of widespread platinum may help solve Clovis people mystery, University of South Carolina, March 9, 2017
https://www.sciencedaily.com/releases/2017/03/170309120656.htm
http://www.sc.edu/uofsc/posts/2017/03/uofsc_archaeologists_discover_platinum_at_clovis_sites.php

Moore, C.R., West, A., LeCompte, M.A., Brooks, M.J., Daniel Jr, I.R., Goodyear, A.C., Ferguson, T.A., Ivester, A.H., Feathers, J.K., Kennett, J.P. and Tankersley, K.B., 2017.
Widespread platinum anomaly documented at the Younger Dryas onset in North American sedimentary
sequences. Scientific Reports, 7, p.44031.
http://www.nature.com/articles/srep44031
http://1f9hwg1wionh254zdu2abfkg.wpengine.netdna-cdn.com/wp-content/uploads/srep44031.pdf
https://www.academia.edu/31867816/Widespread_platinum_anomaly_documented_at_the_Younger_Dryas_onset_in_North_American_sedimentary_sequences_OPEN

The number of publications on this topic must be closing in on circa 180 to 200 by now.

Yours,

Paul H.

Monday, 13 March 2017

The Permo-Triassic Boundary in the Karoo Basin - Guidebook and Summary Chapter

The Permo-Triassic Boundary in the Karoo Basin - Guidebook and Summary Chapter

Neveling, J., R. A. Gastaldo, and J. W. Geissman, 2016,
The Permo-Triassic Boundary in the Karoo Basin. Field
Guidebook for the Pre-3 trip, 35th International
Geological Congress, Cape Town, 2016

https://www.researchgate.net/publication/307907418_The_Permo-Triassic_Boundary_in_the_Karoo_Basin_Field_Guidebook_for_the_Pre-3_trip_35th_International_Geological_Congress_Cape_Town_2016

https://www.researchgate.net/profile/Robert_Gastaldo

Neveling, J., R. A. Gastaldo, S. L. Kamo, J. W. Geissman,
C. V. Looy, and M. K. Bamford, 2016, A Review of Stratigraphic, Geochemical, and Paleontologic Data of the Terrestrial End-Permian Record in the Karoo Basin, South Africa. In Origin and Evolution of the Cape Mountains and Karoo Basin, Chapter: 15, Publisher: Springer
International Publishing, Editors: B. Linol, M.J. de Wit,
pp.151-157 DOI: 10.1007/978-3-319-40859-0_15

https://www.researchgate.net/publication/307623963_A_Review_of_Stratigraphic_Geochemical_and_Paleontologic_Data_of_the_Terrestrial_End-Permian_Record_in_the_Karoo_Basin_South_Africa

https://www.researchgate.net/profile/Robert_Gastaldo

Yours,

Paul H.

Friday, 3 March 2017

DNA Provides Clue to Why Woolly Mammoth Died Out

DNA Provides Clue to Why Woolly Mammoth Died Out

DNA clues to why woolly mammoth died out By Helen Briggs,
BBC News, March 2, 2017
http://www.bbc.com/news/science-environment-39142941

The last, lonely woolly mammoths faced a 'genomic meltdown'
By Michael Price, Science News, March 2, 2017
http://www.sciencemag.org/news/2017/03/last-lonely-woolly-mammoths-were-genetically-screwed
DNA clues to why woolly mammoth died out By Helen Briggs,
BBC News, March 2, 2017
http://www.bbc.com/news/science-environment-39142941

The last, lonely woolly mammoths faced a 'genomic meltdown'
By Michael Price, Science News, March 2, 2017
http://www.sciencemag.org/news/2017/03/last-lonely-woolly-mammoths-were-genetically-screwed

The Woolly Mammoth's Last Stand, New York Times
http://www.bbc.com/news/science-environment-39142941

The paper is:

Rogers, R. L., and M. Slatkin, 2017, Excess of genomic
defects in a woolly mammoth on Wrangel island.
PLOS Genetics. Published: March 2, 2017, open access.
http://dx.doi.org/10.1371/journal.pgen.100660
http://journals.plos.org/plosgenetics/article?id=10.1371/journal.pgen.1006601

The Woolly Mammoth's Last Stand, New York Times
http://www.bbc.com/news/science-environment-39142941

Yours,

Paul H.

Tuesday, 28 February 2017

Mars: More Earth-Like Than Moon-Like

Mars: More Earth-Like Than Moon-Like

Mars: More Earth-Like Than Moon-Like, Louisiana State University
Baton Rouge, Louisiana, February 24, 2017
http://www.lsu.edu/mediacenter/news/2017/02/24geology_susko_scientificreports.php
http://www.upi.com/Science_News/2017/02/24/Mars-mantle-is-complex-and-Earth-like-new-research-suggests/1481487958074/

More Earth-Like than Moon-Like: How Mars Got Its Volcanoes
by Paige Jarreau, Dept. of Geology and Geophysics, Louisiana
State UniversityBaton rouge, Louisiana, February 24, 2017
http://lsuscienceblog.squarespace.com/blog/2017/2/21/more-earth-like-than-moon-like

Elysium Mons Volcano, Mars Orbiter Camera (MOC) High and
Low Resolution Images SPO-2 Observations
http://mars.jpl.nasa.gov/msl/mgs/msss/camera/images/7_10_98_elysium_rel/index.html

The paper is:

Susko, D., and others (2017) A record of igneous evolution in
Elysium, a major Martian volcanic province. Scientific Reports 7
http://www.nature.com/articles/srep43177

Another paper is:

Grott, M., Baratoux, D., Hauber, E., Sautter, V., Mustard, J., Gasnault,
O., Ruff, S.W., Karato, S.I., Debaille, V., Knapmeyer, M. and Sohl, F.,
2013. Long-term evolution of the Martian crust-mantle system.
Space Science Reviews, 174(1-4), pp.49-111.
http://people.earth.yale.edu/sites/default/files/files/Karato/Grott%20et%20al_%20(2013).pdf

Yours,

Paul H.

Sunday, 26 February 2017

Carboniferous Cosmic Microspheres Usolka, Russia

Carboniferous Cosmic Microspheres Usolka, Russia

Sungatullin, R.K., Sungatullina, G.M., Zakirov, M.I., Tsel’movich,
V.A., Glukhov, M.S., Bakhtin, A.I., Osin, Y.N. and Vorob’ev,
V.V., 2017. Cosmic microspheres in the Carboniferous deposits
of the Usolka section (Urals foredeep). Russian Geology and
Geophysics, 58(1), pp.58-68.
https://www.researchgate.net/publication/312629897_Cosmic_microspheres_in_the_Carboniferous_deposits_of_the_Usolka_section_Urals_foredeep
http://www.sciencedirect.com/science/article/pii/S1068797116302607

Сунгатуллин Р. Х., Сунгатуллина Г. М., Закиров М. И., Цельмович
В. А., Глухов М. С., Бахтин А. И., Осин Ю. Н., Воробьев В. В.
Микросферы космического происхождения в каменноугольных
породах разреза Усолка, Предуральский прогиб // Геология и
геофизика. 2017. Т. 58. № 1. С. 74-85.
https://www.researchgate.net/publication/312628823_Mikrosfery_kosmiceskogo_proishozdenia_v_kamennougolnyh_otlozeniah_razreza_Usolka_Preduralskij_progib
http://www.nsu.ru/rs/mw/link/Media:/57928/6_01_2017.pdf

Yours,

Paul H.

Evidence of a 'Chaotic Solar System' from Cretaceous of Colorado

Evidence of a 'Chaotic Solar System' from Cretaceous of Colorado

From rocks in Colorado, evidence of a 'chaotic solar system'
University of Wisconsin-Madison, February 22, 2017
http://news.wisc.edu/from-rocks-in-colorado-evidence-of-a-chaotic-solar-system/
https://www.sciencedaily.com/releases/2017/02/170222131512.htm
http://www.astrobio.net/also-in-news/rocks-colorado-evidence-chaotic-solar-system/

The paper is:

Ma, C., S. R. Meyers, and B. B. Sageman. Theory of chaotic
orbital variations confirmed by Cretaceous geological evidence.
Nature, 2017; 542 (7642): 468-470 DOI: 10.1038/nature21402
http://www.nature.com/nature/journal/v542/n7642/full/nature21402.html

Related paper:

Sageman, B. B., J. Rich, M. A. Arthur, G. E. Birchfield, and
W. E. Dean, 1997, Evidence for Milankovitch Periodicities in
Cenomanian-Turonian Lithologic and Geochemical Cycles,
Western Interior U.S.A. Journal of Sedimentary Research,
Section B: Stratigraphy and Global Studies Vol. 67 (1997)
No. 2. (March), Pages 286-302
http://www.earth.northwestern.edu/research/sageman/PDF/97.Sageman.etal.pdf

Yours,

Paul H.

Thursday, 23 February 2017

After Earth’s Worst Mass Extinction, Life Rebounded Rapidly

Worst Mass Extinction, Life Rebounded Rapidly

After Earth’s Worst Mass Extinction, Life Rebounded Rapidly, Fossils
Suggest, Trilobites, Nichlos ST. Fleur, New york times, Feb. 16, 2017
https://www.nytimes.com/2017/02/16/science/great-dying-permian-extinction-fossils.html

New fossil discovery suggests sea life bounced back after the 'Great
Dying' faster than thought, PhysOrg, February 16, 2017
https://phys.org/news/2017-02-fossil-discovery-sea-life-great.html

The paper is:

Brayard, A., Krumenacker, L.J., Botting, J.P., Jenks, J.F., Bylund, K.G.,
Fara, E., Vennin, E., Olivier, N., Goudemand, N., Saucède, T. and
Charbonnier, S., 2017. Unexpected Early Triassic marine ecosystem
and the rise of the Modern evolutionary fauna. Science Advances,
3(2), p.e1602159.
http://advances.sciencemag.org/content/3/2/e1602159

Yours,

Paul H.

Sunday, 19 February 2017

Who Isn’t Profiting Off the Backs of Researchers?

Who Isn’t Profiting Off the Backs of Researchers?

Below are a couple of though provoking essays. Needless to say,
they do not necessarily represent my opinions, just that it is a
matter that the producers and consumers of scientific research
meteorites and other matters have to deal with in their lives.

Dear Scholars, Delete Your Account At Academia.Edu
Sarah Bond, Forbes, #WhoaScience, January 23, 2017
http://www.forbes.com/sites/drsarahbond/2017/01/23/dear-scholars-delete-your-account-at-academia-edu/

A response to the above article is:

Who Isn’t Profiting Off the Backs of Researchers?
Jon Tennant, The Crux, February 1, 2017
http://blogs.discovermagazine.com/crux/2017/02/01/who-isnt-profiting-off-the-backs-of-researchers/

Green Tea and Velociraptors, Jon Tennant
(Papers on open access and scientific publishing)
https://tinyurl.com/jogxpel

Yours,

Paul H.

Monday, 13 February 2017

Modeling Impact Breaching of Europa's Ice Crust

Modeling Impact Breaching of Europa's Ice Crust

Life on Europa may have been sparked by COMETS: Rocks carrying biological material could have penetrated the moon's thick crust to reach the oceans beneath
http://www.dailymail.co.uk/sciencetech/article-3273914/Life-Europa-sparked-COMETS-Rocks-carrying-biological-material-penetrated-moon-s-crust-reach-oceans-beneath.html

The paper is:

Cox, R. and Bauer, A.W., 2015. Impact breaching of Europa's ice:
Constraints from numerical modeling. Journal of Geophysical
Research: Planets, 120(10), pp.1708-1719.
https://homes.cs.washington.edu/~awb/data/Cox_et_al-2015-Journal_of_Geophysical_Research-_Planets.pdf
https://www.semanticscholar.org/paper/Impact-Breaching-of-Europa-s-Ice-Constraints-from-Cox-Bauer/724dfc775b2e1d4e8e651261f49083743e9f6bbd

https://homes.cs.washington.edu/~awb/data/Cox_et_al-2015-Journal_of_Geophysical_Research-_Planets.pdf

Another paper is:

Cox, R., *Ong, L.C.F., Arakawa, M., and *Scheider, K.C., 2008
Impact penetration of Europa’s ice crust as a mechanism for
formation of chaos terrain, Meteoritics and Planetary Science,
v. 43 (12), p. 2027-2048.
http://sites.williams.edu/rcox/publications/
http://sites.williams.edu/rcox/files/2013/01/Cox_EtAl_2008_MAPS.pdf

Yours,

Paul H.

New Insight into Silica Explains Planetary Smashup

New Insight into Silica Explains Planetary Smashup

New Insight into Silica Explains Planetary Smashup
Earth & Space Science News, Eos, vol. 98, no. 2, p. 43.
https://eos.org/research-spotlights/new-insight-into-silica-explains-planetary-smashup
https://www.researchgate.net/publication/309873404_New_Insight_into_Silica_Explains_Planetary_Smashup

There are other interesting science articles in the
February 2017 issue (vol. 98, no. 2) of "EOS" at:
https://eos.org/wp-content/uploads/2017/01/Feb-17_magazine.pdf?x35494

The paper is:

Connolly, J.A., 2016. Liquid‐vapor phase relations in the Si‐O
system: A calorically constrained van der Waals‐type model.
Journal of Geophysical Research: Planets, 121(9), pp.1641-1666.
http://www.perplex.ethz.ch/papers.html
http://www.perplex.ethz.ch/papers/Connolly_JGR_Planets_2016.pdf

Yours,

Paul H.

Sunday, 12 February 2017

First Nuclear Explosion Helps Test Theory of Moon's Formation

First Nuclear Explosion Helps Test Theory of Moon's Formation

First nuclear explosion helps test theory of moon's formation
By Annie Reisewitz, Univ. of California, San Diego, February 9, 2017
https://www.universityofcalifornia.edu/news/first-nuclear-explosion-helps-test-theory-moons-formation
https://phys.org/news/2017-02-nuclear-explosion-theory-moon-formation.html

Glass from nuclear test site shows the moon was born dry
New Scientist, February 8, 2017
https://www.newscientist.com/article/2120748-glass-from-nuclear-test-site-shows-the-moon-was-born-dry/

Day, J. D. M., F. Moynier, A. P. Meshik, O. V. Pradivtseva,
and D. R. Petit, 2017, Evaporative fractionation of zinc during
the first nuclear detonation Science Advances. Vol. 3, no. 2, e1602668
DOI: 10.1126/sciadv.1602668 CCBY-NC
http://advances.sciencemag.org/content/3/2/e1602668
http://advances.sciencemag.org/content/3/2/e1602668.full

Yours,

Paul H.

Sunday, 5 February 2017

No link between gigantic Ordovician asteroid break-up, rise in biodiversity (open access paper)

No link between gigantic Ordovician asteroid break-up, rise in biodiversity (open access paper)

Myth busted: No link between gigantic asteroid break-up,
rise in biodiversity, University of Copenhagen, February 3, 2017
https://www.sciencedaily.com/releases/2017/02/170203110156.htm
https://phys.org/news/2017-01-meteorites-enrich-ocean-life.html

the paper is;

Lindskog, A., M. M. Costa, C.M.Ø. Rasmussen, J. N. Connelly,
and M. E. Eriksson, 2017, Refined Ordovician timescale reveals
no link between asteroid breakup and biodiversification.
Nature Communications, 2017; 8: 14066 DOI: 10.1038/ncomms14066
http://www.readcube.com/articles/10.1038/ncomms14066

Yours,

Paul H.

Dwarf planet Ceres may have vanishing ice volcanoes

Dwarf planet Ceres may have vanishing ice volcanoes

American Geophysical Union, February 2, 2017
https://phys.org/news/2017-02-ceres-ice-volcanoes.html

https://www.sciencedaily.com/releases/2017/02/170202123044.htm



Ceres' vanishing ice volcanoes: Dwarf planet may havehad 'cryovolcanoes' millions of years ago that flattened out over time, leaving just one behind, Daily Mail
http://www.dailymail.co.uk/sciencetech/article-4186036/Study-investigates-Ceres-vanishing-ice-volcanoes.html

The paper is:

Michael M. Sori, Shane Byrne, M. T. Bland, A. M. Bramson,

A. I. Ermakov, C. W. Hamilton, K. A. Otto, O. Ruesch, and

C. T. Russell, 2017, The vanishing cryovolcanoes of Ceres.

Geophysical Research Letters, 2017; DOI: 10.1002/2016GL072319

Yours,

Paul H.

Evidence of 2 billion years of volcanic activity on Mars

Evidence of 2 billion years of volcanic activity on Mars

Evidence of 2 billion years of volcanic activity on Mars
Meteorite found in Africa provides clues to evolution
of the red planet, University of Houston, February 2, 2017
http://www.uh.edu/news-events/stories/2017/February/02012017mars-volcano-meteorite.php
https://www.sciencedaily.com/releases/2017/02/170202090848.htm
https://phys.org/news/2017-02-evidence-billion-years-volcanic-mars.html

The paper is:

Lapen, T. J., M. Righter, R. Andreasen, A. J. Irving,
A. M. Satkoski, B. L. Beard, K. Nishiizumi, A. J. T. Jull,
and M. W. Caffee. Two billion years of magmatism
recorded from a single Mars meteorite ejection site.
Science Advances, 2017; 3 (2): e1600922 DOI: 10.1126/sciadv.1600922
http://advances.sciencemag.org/content/3/2/e1600922

Yours,

Paul H.

Saturday, 28 January 2017

Articles About Meteorites And Asteroids

Articles About Meteorites And Asteroids

Meteorite Studies Reveal Surprises About Earth's Formation
By Elizabeth Howell, SpaceCom, January 26, 2017
http://www.space.com/35468-earth-building-blocks-different-than-thought.html

Nice picture of Meteorite On Mars

Curiosity Finds An(other) Alien Visitor on Mars
Earth Isn't the Only Planet Hit by Meteorites. Mars Gets
Them, Too. by Phil Plait, Blog-Slate Magazine, January 23, 2017
http://www.slate.com/blogs/bad_astronomy/2017/01/23/curiosity_sees_a_meteorite_on_the_surface_of_mars.html

This image was taken by Mastcam: Right (MAST_RIGHT)
onboard NASA's Mars rover Curiosity on Sol 1577
(2017-01-12 11:21:52 UTC). NASA/JPL-Caltech/MSSS
http://mars.nasa.gov/msl/multimedia/raw/?rawid=1577MR0080320000800289E01_DXXX&s=1577

Deflecting Asteroids

Objective: To deflect asteroids, thus preventing their collision
with Earth Space Daily, Madrid, Spain, January 27, 2017
http://www.spacedaily.com/reports/Objective_To_deflect_asteroids_thus_preventing_their_collision_with_Earth_999.html

Scientists working on deflecting asteroids headed for Earth
The Indian Express, January 27, 2017
http://indianexpress.com/article/technology/science/scientists-working-on-deflecting-asteroids-headed-for-earth-4493719/

Yours,

Paul H.

Deflecting Asteroids

Deflecting Asteroids

Objective: To deflect asteroids, thus preventing their collision
with Earth Space Daily, Madrid, Spain, January 27, 2017
http://www.spacedaily.com/reports/Objective_To_deflect_asteroids_thus_preventing_their_collision_with_Earth_999.html

Scientists working on deflecting asteroids headed for Earth
The Indian Express, January 27, 2017
http://indianexpress.com/article/technology/science/scientists-working-on-deflecting-asteroids-headed-for-earth-4493719/

Yours,

Paul H.

Nice Picture of Meteorite On Mars

Nice Picture of Meteorite On Mars

Curiosity Finds An(other) Alien Visitor on Mars
Earth Isn't the Only Planet Hit by Meteorites. Mars Gets
Them, Too. by Phil Plait, Blog-Slate Magazine, January 23, 2017
http://www.slate.com/blogs/bad_astronomy/2017/01/23/curiosity_sees_a_meteorite_on_the_surface_of_mars.html

This image was taken by Mastcam: Right (MAST_RIGHT)
onboard NASA's Mars rover Curiosity on Sol 1577
(2017-01-12 11:21:52 UTC). NASA/JPL-Caltech/MSSS
http://mars.nasa.gov/msl/multimedia/raw/?rawid=1577MR0080320000800289E01_DXXX&s=1577

Yours,

Paul H.

Thursday, 26 January 2017

Online Comet and Meteorite Lectures

Online Comet and Meteorite Lectures

P33I Whipple Lecture:
The Complex Evolution of Comet Nuclei
American Geophysical Union (AGU)
Published on Aug 4, 2015
AGU Fall Meeting 2011 - P33I
https://www.youtube.com/watch?v=hf4irGb8QLE

The meaning of meteorites
Royal Astronomical Society
Published on Mar 24, 2015
Royal Astronomical Society public lecture, 10 February 2015
by Dr Ted Nield, Geoscientist Magazine
https://www.youtube.com/watch?v=6lgd_bJELtM

Yours,

Paul H.

Tuesday, 24 January 2017

Rare meteorites common in the Ordovician period

Rare meteorites common in the Ordovician period

A 466-million-year-old space collision is still raining shrapnel
on Earth By Sarah Kaplan, Washington Post, January 23, 2016
https://www.washingtonpost.com/news/speaking-of-science/wp/2017/01/23/a-466-million-year-old-space-collision-is-still-raining-shrapnel-down-on-earth/

Today’s rare meteorites were once common, The Field Museum,
Monday, January 23, 2017
https://www.fieldmuseum.org/science/blog/todays-rare-meteorites-were-once-common

The paper is:

Heck, P. R., B. Schmitz, W. F. Bottke, S. S. Rout, N. T. Kita, A. Cronholm,
C. Defouilloy, A. Dronov, and F. Terfelt, 2017, Rare meteorites common
in the Ordovician period. Nature Astronomy 1, Article number: 0035 (2017)
doi:10.1038/s41550-016-0035
http://www.nature.com/articles/s41550-016-0035

Yours,

Paul H.