Radiation Might Destroy Ancient Martian Organics

Radiation Might Destroy Ancient Martian Organics

Alien Life? Radiation May Erase Mars, Europa Fossils
By Nola Taylor Redd, Space.com, May 24, 2016
http://www.space.com/32962-alien-fossils-mars-europa-radiation.html

A couple of abstracts are:

Pavlov, A. A., J. Eigenbrode, D. Glavin, and M. Floyd, 2014,
Rapid Degradation of the Organic Molecules in Martian
Surface Rocks Due to Exposure to Cosmic Rays. Severe
Implications to the "Extinct" Life on Mars. 45th Lunar
and Planetary Science Conference (2014). abstract #2830
http://www.hou.usra.edu/meetings/lpsc2014/pdf/2830.pdf

Pavlov, A. A., D. Glavin, J. Dworkin, H. McLain, and J.
Eigenbrode, 2016, Rapid Degradation of the Organic
Molecules in Martian Subsurface Rocks Due to Exposure
to Cosmic Rays. 47th Lunar and Planetary Science
Conference (2016) abstract no. 2577
http://www.hou.usra.edu/meetings/lpsc2016/pdf/2577.pdf
http://www.hou.usra.edu/meetings/lpsc2016/authorindex.cfm?r=l-r#P

Yours,

Paul H.

Explanation for Origin of Nature's Heaviest Elements

Explanation for Origin of Nature's Heaviest Elements

Galactic 'Gold Mine' Explains the Origin of Nature's Heaviest Elements:
A unique galaxy loaded with hard-to-produce, heavy elements sheds
light on stellar histories and galactic evolution. MIT Kavli Institute for
Astrophysics and Space Research, May 19, 2016
http://www.kavlifoundation.org/science-spotlights/cosmic-heavy-metals
http://phys.org/news/2016-05-galactic-gold-nature-heaviest-elements.html

3 Questions: The origin of the cosmos’ heaviest elements: Unique galaxy
offers clues to the extreme conditions that yield the heavies of the
periodic table.
MIT Kavli Institute for Astrophysics and Space Research, March 21, 2016
http://news.mit.edu/2016/3-q-galaxy-origin-cosmos-heaviest-elements-0321

The paper is:

Alexander, P. J., A. Frebel, A. Chiti, and J. D. Simon, 2016, R-process
enrichment from a single event in an ancient dwarf galaxy
Nature. vol. 531, pp. 610–613 (31 March 2016) doi:10.1038/nature17425
http://www.ncbi.nlm.nih.gov/pubmed/27001693

Also, there is:

Copious r-process enrichment from a single event in an ancient dwarf
galaxy by Alexander P. Ji, Anna Frebel, Anirudh Chiti, Joshua D. Simon
http://arxiv.org/abs/1512.01558

Yours,

Paul H.

Evidence of Precambrian Asteroid Impacts Found in Australia

Evidence of Precambrian Asteroid Impacts Found in Australia

Clues to ancient giant asteroid found in Australia
Australian National University, May 16, 2016
http://www.anu.edu.au/news/all-news/clues-to-ancient-giant-asteroid-found-in-western-australia

https://www.sciencedaily.com/releases/2016/05/160516095132.htm

http://www.astronomy.com/news/2016/05/clues-to-ancient-giant-asteroid-found-in-western-australia

Earth Hit by 15-Mile-Wide Earth Hit by 15-Mile-Wide
Asteroid 3.5 Billion Years Ago, Evidence Indicates, May 17, 2016
http://www.sci-news.com/geology/earth-hit-asteroid-3-5-billion-years-ago-03871.html

Glikson, A., A. Hickman, N. J. Evans, C. L. Kirkland, J.-W. Park, R. Rapp, and S. Romano., 2016, A new ∼3.46Ga asteroid impact ejecta unit at Marble Bar, Pilbara Craton, Western Australia: A petrological, microprobe and laser ablation ICPMS study. Precambrian Research; 279: 103 DOI: 10.1016/j.precamres.2016.04.003
https://www.researchgate.net/publication/301249834_A_new_346_Ga_asteroid_impact_ejecta_unit_at_Marble_Bar_Pilbara_Craton_Western_Australia_A_petrological_microprobe_and_laser_ablation_ICPMS_study

Yours,

Paul H.

Ancient Tsunami on Mars

Ancient Tsunami on Mars

Ancient tsunami evidence on Mars reveals life potential,
By Blaine Friedlander, Cornell Chronicle, May 19, 2016
http://www.news.cornell.edu/stories/2016/05/ancient-tsunami-evidence-mars-reveals-life-potential
https://www.sciencedaily.com/releases/2016/05/160519101756.htm

There Were Mega-Tsunamis on Mars. Billions of years ago, huge waves devastated the Martian landscape, make Earth's tsunamis look tame by comparison. Popular Mechanics
http://www.popularmechanics.com/space/a20941/there-were-mega-tsunamis-on-mars/

Mars may have been carved up by massive ancient tsunamis
By Rachel Feltman, The Washington Post, May 19, 2016
https://www.washingtonpost.com/news/speaking-of-science/wp/2016/05/19/mars-may-have-been-carved-up-by-ancient-tsunamis/

Rodriguez, J. A. P., A. G. Fairén, K. L. Tanaka, M. Zarroca, R. Linares, T. Platz, G. Komatsu, H. Miyamoto, J. S. Kargel, J. Yan, V. Gulick, K. Higuchi, V. R. Baker and N. Glines, 2016, Tsunami Waves Extensively Resurfaced the Shorelines of an Early Martian Ocean. Scientific Reports, 2016
DOI: 10.1038/srep25106
http://www.nature.com/articles/srep25106

Yours,

Paul H.

Cosmic dust reveals Earth's ancient atmosphere

Cosmic dust reveals Earth's ancient atmosphere

Cosmic dust reveals Earth's ancient atmosphere
Monash University, May 11, 2016
http://www.smh.com.au/technology/sci-tech/cosmic-dust-reveals-earths-ancient-atmosphere-20160510-goryca.html
https://www.sciencedaily.com/releases/2016/05/160511154214.htm
http://www.livescience.com/54716-space-dust-reveals-clues-ancient-earth-atmosphere.html

“Using the oldest fossil micrometeorites -- space dust –
ever found, new research has made a surprising
discovery about the chemistry of Earth's atmosphere
2.7 billion years ago.”

The paper is:

Tomkins, A. G., L. Bowlt, M. Genge, S. A. Wilson, H. E. A.
Brand, and J. L. Wykes, 2016, Ancient micrometeorites
suggestive of an oxygen-rich Archaean upper atmosphere.
Nature, 2016; 533 (7602): 235 DOI: 10.1038/nature17678
http://www.nature.com/nature/journal/v533/n7602/full/nature17678.html

Off-topic, but a break from the daily gloom and doom.

World's Oldest Cat Anointed by Guinness
Discovery News, May 11, 2016
http://news.discovery.com/animals/pets/worlds-oldest-cat-anointed-by-guinness-160511.htm

Cat World Records
https://youtu.be/25oPIJlOliA

Yours,

Paul H.

Permian - Triassic Mayhem: Earth's Largest Mass Extinction

Permian - Triassic Mayhem: Earth's Largest Mass Extinction

Permian - Triassic Mayhem: Earth's Largest Mass Extinction
Beniot Beauchamp, Ph.D. - University of Calgary
Royal Tyrrell Museum Speaker Series 2013
Permian - Triassic Mayhem: Lead-up, Catastrophe and
Aftermath of the Earths Largest Mass Extinction viewed
from Arctic Canada, Febrary 11, 2013
https://www.youtube.com/watch?v=J8rynQqg9x8

Some papers are:

Beauchamp, B., Henderson, C.M., Grasby, S.E., Gates, L.T.,
Beatty, T.W., Utting, J., and James, N.P., 2009, Late Permian
sedimentation in the Sverdrup Basin, Cana- dian Arctic:
The Lindström and Black Stripe Forma- tions: Bulletin of
Canadian Petroleum Geology, v. 57, p. 167–191,
doi:10.2113/gscpgbull.57.2.167.
https://www.researchgate.net/publication/250084443_Late_Permian_Sedimentation_in_the_Sverdrup_Basin_Canadian_Arctic_The_Lindstrom_and_Black_Stripe_Formations
https://www.researchgate.net/profile/Benoit_Beauchamp

Grasby, S.E., Sanei, H., and Beauchamp, B., 2011, Catastrophic
dispersion of coal fly ash into oceans during the latest Permian
extinction: Nature Geoscience, v. 4, p. 104–107, doi:10.1038/ngeo1069.
Volume 153 / Special Issue 02 / March 2016, pp 285-297
https://www.researchgate.net/publication/49120396_Catastrophic_dispersion_of_coal_fly_ash_into_oceans_during_the_latest_Permian_extinction

Grasby, S. E., B. Beauchamp, D. P. G. Bond, P. B. Wignall, and
H. Sanei, 2016, Mercury anomalies associated with three
extinction events (Capitanian Crisis, Latest Permian Extinction
and the Smithian/Spathian Extinction) in NW Pangea.
Geological Magazine. vol. 153, no. 2, pp. 285-297.
https://www.researchgate.net/publication/282628853_Mercury_anomalies_associated_with_three_extinction_events_Capitanian_Crisis_Latest_Permian_Extinction_and_the_SmithianSpathian_Extinction_in_NW_Pangea
https://www.researchgate.net/profile/Benoit_Beauchamp

Beauchamp, B., and Baud, A., 2002, Growth and demise of
Permian biogenic chert along northwest Pangea: Evidence for
end-Permian collapse of thermohaline circulation: Palaeogeography, Palaeoclimatology, Palaeoecology, v. 184, p. 37–63, doi:10.1016/S0031-0182
(02)00245-6.
https://www.researchgate.net/publication/223364925_Growth_and_demise_of_Permian_biogenic_chert_along_northwest_Pangaea_evidence_for_end-Permian_collapse_of_thermohaline_circulation

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

Yours,
Paul H.

Ames Impact Structure, Oklahoma, Symposium Online As PDF File

Ames Impact Structure, Oklahoma, Symposium Online As PDF File

The symposium is:

Johnson, K. S., and J. A. Campbell, 1997, Ames Structure in Northwest Oklahoma and Similar Features: Origin and Petroleum Production (1995 Symposium). Proceedings of a symposium held March 28-29, 1995, in Norman, Oklahoma. Circular no. 100. Oklahoma Geological Survey,
The University of Oklahoma, Norman. ISSN 0078-4397

It is at:

http://www.ogs.ou.edu/pubsscanned/Circulars/Circular100.pdf
http://digitalprairie.ok.gov/cdm/ref/collection/stgovpub/id/104579

A paper about similar oil and gas reservoirs created
by extraterrestrial impacts is "High-Impact Reservoirs"
at https://goo.gl/cDqakL .

Yours,

Paul H.

ECORD Drilling Reaches Chicxulub Crater

ECORD Drilling Reaches Chicxulub Crater

Scientists hit pay dirt in drilling of dinosaur-killing
impact crater by Eric Hand, Science, May. 3, 2016
http://www.sciencemag.org/news/2016/05/scientists-hit-pay-dirt-drilling-dinosaur-killing-impact-crater

Geologists Find Clues In Crater Left By Dinosaur-Killing Asteroid
All Things Considered, NPR, May 6, 2016
http://www.npr.org/sections/thetwo-way/2016/05/06/476871766/geologists-find-clues-in-crater-left-by-dinosaur-killing-asteroid

What Happened To The Dinosaurs? Here and Now, April 7, 2016
http://hereandnow.wbur.org/2016/04/07/mexico-crater-dinosaur-research

Yours,

Paul H

Hadean Detrital Zircons – Impacts Not Plate Tectonics ?

Hadean Detrital Zircons – Impacts Not Plate Tectonics ?

Origin of Earth's oldest crystals
Trinity College Dublin, April 28, 2016
http://www.sciencealert.com/there-s-a-new-theory-about-how-the-earth-s-oldest-crystals-were-formed
http://www.livescience.com/54648-oldest-crystals-formed-in-asteroid-craters.html
http://phys.org/news/2016-05-oldest-crystals-world.html

Kenny, G. G., M. J. Whitehouse, and B. S. Kamber, 2016,
Differentiated impact melt sheets may be a potential
source of Hadean detrital zircon. Geology. First published
online April 28, 2016, doi: 10.1130/G37898.1
http://geology.gsapubs.org/content/early/2016/04/27/G37898.1

Kenny, G. G., M. J. Whitehouse, and B. S. Kamber, 2016,
Differentiated impact melt sheets may be a potential
Source of Hadean detrital zircon population. 47th
Lunar and Planetary Science Conference (2016).
http://www.hou.usra.edu/meetings/lpsc2016/pdf/2473.pdf

Yours,

Paul H.