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



Thursday, 24 November 2016

Digitate Opaline Silica Structures (Biosignatures ?) Found on Mars

Digitate Opaline Silica Structures (Biosignatures ?) Found on Mars

Scientists Think They Finally Found Evidence of Ancient Life on Mars. by Sage Lazzaro, Observer
http://observer.com/2016/11/scientists-think-they-finally-found-evidence-of-ancient-life-on-mars/

The paper is:

Ruff, S. W., and J. D. Farmer, 2016, Silica deposits on Mars with features resembling hot spring biosignatures at El Tatio in Chile. Nature Communications 7, Article number: 13554 (2016) doi:10.1038/ncomms13554 Received: 14 April 2016, Accepted: 13 October 2016 Published online: 17 November 2016
http://www.nature.com/articles/ncomms13554

Yours,

Paul H.

Wednesday, 23 November 2016

Review of Recent Younger Dryas Impact Hypothesis Podcast

Review of Recent Younger Dryas Impact Hypothesis Podcast

For a review by Jason Colavito of Graham Hancock's latest comments about the Younger Dryas Impact Hypothesis, look at:

Graham Hancock Appears on Joe Rogan Podcast and Spends Three and Half Hours Bashing Skeptics by Jason Colavito
http://www.jasoncolavito.com/blog/graham-hancock-appears-on-joe-rogan-podcast-and-spends-three-and-half-hours-bashing-skeptics

Yours,

Paul H.

Saturday, 19 November 2016

Origin of Alleged Impact Tsunami Chevrons Re-examined

Origin of Alleged Impact Tsunami Chevrons Re-examined

The Mystery of Chevrons Revealed
American Geophysical Union (AGU) Talk
2014 Fall Meeting, Section: Natural Hazards
https://www.youtube.com/watch?v=JnjfhhdnAzk

Related links:

Michaela Spiske
https://independent.academia.edu/MichaelaSpiske

Garcia Garcia, A-M.., Spiske, M., Tsukamoto, S., and
Schmidt, V., 2012, Sedimentology of coastal chevron
deposits – tsunamigenic versus aeolian origin. American
Geophysical Union, Fall Meeting 2012, abstract #OS33B-1821
http://adsabs.harvard.edu/abs/2012AGUFMOS33B1821G

Spiske, M., Garcia Garcia, A-M., Tsukamoto, S., and
Schmidt, V., 2013, Coastal chevron deposits –
sedimentology, methods and aeolian versus tsunamigenic
origin. Geophysical Research. Abstracts. vol. 15,
EGU2013-2892, EGU General Assembly 2013
https://www.academia.edu/28071876/Coastal_chevron_deposits_-_sedimentology_methods_and_aeolian_versus_tsunamigenic_origin

Yours,

Paul.

Friday, 18 November 2016

Drill Cores Reveal How Peak Rings of Chicxulub Crater Formed

Drill Cores Reveal How Peak Rings of Chicxulub Crater Formed

Update: Drilling of dinosaur-killing impact crater explains
buried circular hills by Eric Hand, Science News, Nov. 17, 2016
http://www.sciencemag.org/news/2016/11/update-drilling-dinosaur-killing-impact-crater-explains-buried-circular-hills

Wendel, J., 2016, Cores from crater tied to dinosaur demise
validate impact theory, Eos, 97, doi:10.1029/2016EO063123.
Published on 17 November 2016.
https://eos.org/articles/cores-crater-tied-dinosaur-demise-validate-impact-theory

the paper is:

Morgan, J. V., S. P. S. Gulick, and many others, 2016, The
formation of peak rings in large impact craters. vol. 354,
no. 6314, pp. 878-882 DOI: 10.1126/science.aah6561
http://science.sciencemag.org/content/354/6314/878

Yours,

Paul H.

Lunar impact: how the Moon’s Mare Orientale was formed

Lunar impact: how the Moon’s Mare Orientale was formed

Subsurface map of moon reveals origin of mysterious impact
crater rings by Paul Voosen, Science News, Oct. 27, 2016
http://www.sciencemag.org/news/2016/10/subsurface-map-moon-reveals-origin-mysterious-impact-crater-rings

Lunar impact: how the Moon’s Mare Orientale was formed
Astronomy Now, October 29, 2016
https://astronomynow.com/2016/10/29/lunar-impact-how-the-moons-mare-orientale-was-formed/

Insights into giant impacts on moon, Earth and Mars NASA/Jet
Propulsion Laboratory, Brown university, October 27, 2016
http://www.nasa.gov/feature/jpl/nasa-moon-mission-shares-insights-into-giant-impacts/
https://solarsystem.nasa.gov/news/2016/10/27/nasa-moon-mission-shares-insights-into-giant-impacts
https://www.sciencedaily.com/releases/2016/10/161027141000.htm
https://www.sciencedaily.com/releases/2016/10/161027142654.htm

The paper is:

Zuber, M. T., D. E. Smith, and many others, 2016, Gravity field
of the Orientale basin from the Gravity Recovery and Interior
Laboratory Mission. Science. vol. 354, no. 6311, pp. 438-441
DOI: 10.1126/science.aag0519
http://science.sciencemag.org/content/354/6311/438

Yours,

Paul H.

Sunday, 13 November 2016

Beaverhead Impact Structure Publications

Beaverhead Impact Structure Publications

McCafferty, 1995, A. E., Assessing the presence of a buried meteor impact crater using geophysical data, south-central Idaho Thesis, Colorado School of Mines. 1995.
https://dspace.library.colostate.edu/handle/11124/170341
https://dspace.library.colostate.edu/handle/11124/170341?show=full
https://dspace.library.colostate.edu/bitstream/handle/11124/170341/T4651.pdf?sequence=1&isAllowed=y

Carr, J., and Link, P.K., 1999, Neoproterozoic conglomerate and breccia in the formation of Leaton Gulch, Grouse Peak, northern Lost River Range, Idaho: Relation to Beaverhead Impact Structure,
in Hughes, S.S., and Thackray, G.D., eds., Guidebook to the Geology of Eastern Idaho: Pocatello, Idaho Museum of Natural History, p. 21-29
http://imnh.isu.edu/digitalatlas/geo/gsa/gsafrm.htm

Yours,

Paul H.

Meteorites reveal lasting drought on Mars

Meteorites reveal lasting drought on Mars

Mars' Mega-Drought Revealed in Meteorite Rust 
NASA's Mars rover Opportunity has been used to measure the weathering of meteorites on the Red Planet, revealing just how little water there is on the surface. Space, November 11, 2016
http://www.seeker.com/mars-meteorite-water-opportunity-rover-habitability-astrobiology-2089821823.html

http://www.natureworldnews.com/articles/31680/20161112/meteorites-mars-suggest-super-drought-wiped-out-alien-life.htm

The paper is:
Schröder, C., P. A. Bland, M. P. Golombek, J. W. Ashley, N. H. Warner, and J. A. Grant, 2016a, Amazonian chemical weathering rate derived from stony meteorite finds at Meridiani Planum on Mars. Nature Communications, 2016; 7: 13459 DOI: 10.1038/ncomms13459
http://www.nature.com/articles/ncomms13459
Schröder, C., P. A. Bland, M. P. Golombek, J. W. Ashley, N. H. Warner, and J. A. Grant, 2016b, Late-Amazonian chemical weathering rate for Meridiani Planum, Mars, derived from candidate stony meteorite finds. 79th Annual Meeting of the Meteoritical Society (2016)
http://www.hou.usra.edu/meetings/lpsc2015/eposter/2354.pdf
http://www.hou.usra.edu/meetings/metsoc2016/pdf/6529.pdf
Schröder, C., P. and others, nd, Properties and distribution of paired candidate stony meteorites at Meridiani Planum, Mars
https://home.dtm.ciw.edu/users/lrn/preprints/schroeder2010.pdf
Yours,
Paul H.

Friday, 28 October 2016

End-Permian Mass Extinction Reexamined

End-Permian Mass Extinction Reexamined

End-Permian mass extinction was not so massive
By Belinda Smith, Cosmos Magazine
https://cosmosmagazine.com/palaeontology/mass-extinctions-were-not-so-massive-study

US paleontologists states once the dust settled
following the 'great dying' around 250 million
years ago, nearly 20% of species remained – not
4%. Belinda Smith reports.

Paleontologist suggests 'great dying' 252 million
years ago wasn't as bad as thought, October 4, 2016
http://phys.org/news/2016-10-paleontologist-great-dying-million-years.html

The paper is:

Stanley, S. M., 2016, Estimates of the magnitudes
of major marine mass extinctions in earth history.
Proceedings of the National Academy of Sciences,
US, vol. 113 no. 42 E6325-E6334
http://www.pnas.org/content/113/42/E6325

Yours,


Paul H.

Friday, 21 October 2016

NASA’s Plan to Hunt for Fossils on Mars

NASA’s Plan to Hunt for Fossils on Mars

NASA's Amazing 2020 Mars Mission to Search for
Ancient Fossils --"Unlike Earth, Mars is a Beautifully
Preserved Fossil" The Daily Galaxy, ‎October 19, 2016‎
http://www.dailygalaxy.com/my_weblog/2016/10/nasas-amazing-2020-mars-mission-to-search-for-ancient-fossils-unlike-earth-mars-is-a-beautifully-pre.html

NASA’s Bold Plan to Hunt for Fossils on Mars
National Geographic, October 17, 2016
http://news.nationalgeographic.com/2016/10/alien-fossils-nasa-exploring-mars-2020-space-science/

NASA Plans To Search For Martians: Where Will They
Begin The Hunt? Science World Report, Oct. 18, 2016‎
http://www.scienceworldreport.com/articles/50281/20161018/nasa-plans-search-martians-where-will-begin-hunt.htm

Yours,

Paul H.

Sunday, 16 October 2016

Article on Hypothesized Scottish Precambrian Impact Crater

Article on Hypothesized Scottish Precambrian Impact Crater

Massive crater under small Scottish town could be the crash site of the first meteorite to hit the British Isles
Thought to be under the small town of Lairg, northern Scotland, it be one of the 15 largest known craters.
By Press Association and Libby Plummer, Mail Online, September 21, 2016
http://www.dailymail.co.uk/sciencetech/article-3800595/Massive-crater-small-Scottish-town-crash-site-meteorite-hit-British-Isles.html

It is certainly not the "first" meteorite impact in British Isles, as there undoubtedly have been older ones.
Instead, it might be simply the oldest known impact in the British Isles. (Presuming that older impacts certainly have occurred and not be either preserved of found.) Like all news articles, some of the substance of the science has gotten either lost or misinterpreted in translation to lay English.

An interesting observation is that the impact crater lies on a piece of crust composed of  Lewisian Gneiss that was part of Rodina. At the time that impact occurred, Rodina was being rifted apart to form Laurentia (prehistoric North America). This piece of crust ended up as part of the Laurentian continental margin. It was this rifting that created active rift basins, in which the Stoer and Sleat Groups accumulated and the ejecta blanket was buried and preserved. Thus, at the time the impact occurred, it hit within what became
prehistoric North America and only much later ended up on the opposite side of the Atlantic.

A recent abstract is:

Simms, M. J., 2016, A Buried Impact Crater in Scotland. 79th Annual Meeting of the Meteoritical Society (2016) abstract no. 6090.
http://www.hou.usra.edu/meetings/metsoc2016/pdf/6090.pdf

An older paper is:

Simms, M. J., 2015, The Stac Fada impact ejecta deposit and the Lairg Gravity Low: evidence for a buried Precambrian impact crater in Scotland? Proceedings of the Geologists’ Association. vol. 126, pp. 742–761

Friday, 14 October 2016

Comet Strike May Have Triggered the Paleocene-Eocene Thermal Maximum (PETM)

Comet Strike May Have Triggered the Paleocene-Eocene Thermal Maximum (PETM)

Extraterrestrial Impact Preceded Ancient Global Warming Event
By Mary L. Martialay, Rensselaer Polytechnic Institute, October 13, 2016
http://news.rpi.edu/content/2016/10/13/extraterrestrial-impact-preceded-ancient-global-warming-event

Ancient Meteorite Impact Rained Debris On US East Coast
By Calla Cofield, Space.com Staff Writer | October 13, 2016 05:46pm ET
http://www.space.com/34384-ancient-meteorite-impact-hit-us-east-coast.html

Yours,

Paul H.

Chicxulub Impact Crater Investigation Begins in Earnest

Chicxulub Impact Crater Investigation Begins in Earnest

Chicxulub 'dinosaur crater' investigation begins in earnest
by Jonathan Amos, BBC News, October 11, 2016
http://www.bbc.com/news/science-environment-37625348

Yours,

Paul H.






Annual Moon Impacts More Frequent Then Previously Estimated

Annual Moon Impacts More Frequent Then Previously Estimated

The moon has hundreds more craters than we thought
Daily News, October 12, 2016
https://www.newscientist.com/article/2108929-the-moon-has-hundreds-more-craters-than-we-thought/

How old is our Moon? Hundreds of previously unseen
craters could finally unlock its true age: New estimates
suggest 180 craters of at least ten metres in diameter
form each year by Liat Clark, Wired,

A facelift for the Moon every 81,000 years, October 12, 2016
http://phys.org/news/2016-10-facelift-moon-years.html
http://phys.org/news/2016-10-reveals-lunar-surface-features-younger.html

The paper is:

Speyerer, E. J., R. Z. Povilaitis, M. S. Robinson, P. C. Thomas,
And R. V. Wagner, 2016, Quantifying crater production
and regolith overturn on the Moon with temporal imaging.
Nature. Vol. 538, pp. 215–218 (13 October 2016) doi:10.1038/nature19829
http://nature.com/articles/doi:10.1038/nature19829

Yours,

Paul H.

No, the Rock You Found Is Not a Meteorite

No, the Rock You Found Is Not a Meteorite

Scientists: No, the Rock You Found Is Not a Meteorite
Thousands of space rock fans want to verify their meteorwrongs; ‘I don’t chat’ The wall Street Journal
http://www.wsj.com/articles/scientists-no-the-rock-you-found-is-not-a-meteorite-1473948988

Yours,

Paul H.

Thursday, 6 October 2016

Impact Origin of Paleocene-Eocene Thermal Maximum (PETM) ?

Impact Origin of Paleocene-Eocene Thermal Maximum (PETM) ?

Glass bits, charcoal hint at 56-million-year-old space rock Impact. Timing coincides with period of rapid warming perhaps sparked by comet, Thomas Summer, Science News.
https://www.sciencenews.org/article/glass-bits-charcoal-hint-56-million-year-old-space-rock-impact

Schaller, M.F., and others, 2016, Distal impact ejecta at Paleocene-Eocene boundary sections on the Atlantic Margin. Geological Society of America annual meeting, Denver, September 27, 2016. Geological Society of America Abstracts with Programs. Vol. 48, No. 7.
https://gsa.confex.com/gsa/2016AM/webprogram/Paper286189.html
https://gsa.confex.com/gsa/2016AM/webprogram/Session40161.html

Fung, M.K., and others, 2016, Widespread wildfires at the Paleocene Eocene boundary: Evidence from abundant charcoal preserved in the thick Marlboro Clay. Geological Society of America annual meeting, Denver, September 27, 2016. Geological Society of America Abstracts with Programs. Vol. 48, No. 7
https://gsa.confex.com/gsa/2016AM/webprogram/Paper284983.html
https://gsa.confex.com/gsa/2016AM/webprogram/Session40161.html

More papers at:
https://gsa.confex.com/gsa/2016AM/webprogram/Session40161.html

Yours,

Paul H.

Friday, 30 September 2016

OT: The Geologists Are Coming! And Other Quirky Geoscience Tunes

OT: The Geologists Are Coming! And Other Quirky Geoscience Tunes

The article about geology songs is:
Showstack, Randy, 2016, Amoeba People Sing Quirky Tunes About Geoscience. Eos. Vol. 97,
no. 18, pp. 8-9 https://eos.org/current-issues

and PDF
https://eos.org/wp-content/uploads/2016/09/15-Sept_magazine.pdf?cbb367

In the same issue, is “New Insights into North America’s Midcontinent Rift” by Seth Stein, Carol Stein, Jonas Kley, Randy Keller, and others and “Bacteria Preserve Record of Earth’s Magnetic Fields” by Elizabeth Deatrick.

A couple of Amoeba People’s songs are:
The Geologists Are Coming!
https://www.youtube.com/watch?v=1NU51lJIdrg

https://www.youtube.com/watch?v=KCYVhPp7cUs

and

Continental Drift: Alfred Wegener Song by The Amoeba People
https://www.youtube.com/watch?v=T1-cES1Ekto

Other tunes are:

Country Western Geology - Brad Paisley - 5/10/2014
https://www.youtube.com/watch?v=qF0iC6DXMQ8

Tiktaalik (Your Inner Fish)
https://www.youtube.com/watch?v=B9h1tR42QYA

Trilobite Deep time
https://www.youtube.com/watch?v=2d9NztifSD4

Yours,

Paul H.

Thursday, 29 September 2016

New Allerød–Younger Dryas Boundary Papers

New Allerød–Younger Dryas Boundary Papers

New papers about the Allerød–Younger Dryas boundary are:

Andronikov, A.A., A. Van Hoesel, I. E. Andronikov, and W. Z. Hoek,2016,
Trace Element Distribution and Implications in Sediments Across the The Allerod–Younger Dryas Boundary in the Netherlands and Belgium. Geografiska Annaler: Series A, Physical Geography. Early View (Online
Version of Record published before inclusion in an issue)
http://onlinelibrary.wiley.com/doi/10.1111/geoa.12140/abstract\

https://www.researchgate.net/publication/307902489_TRACE_ELEMENT_DISTRIBUTION_AND_IMPLICATIONS_IN_SEDIMENTS_ACROSS_THE_ALLEROD-YOUNGER_DRYAS_BOUNDARY_IN_THE_NETHERLANDS_AND_BELGIUM_TRACE_ELEMENT_DISTRIBUTION_ACROSS_THE_ALLEROD-YOUNGER_DRYAS_BOUNDARY

Jesse Tune, 2016, The Clovis–Cumberland–Dalton Succession: Settling into the Midsouth United States during the Pleistocene to Holocene Transition. PaleoAmerica. Pages 1-13 | Published online: 17 Aug 2016

https://www.academia.edu/27844014/The_Clovis-Cumberland-Dalton_Succession_Settling_into_the_Midsouth_United_States_during_the_Pleistocene-to-Holocene_Transition.pdf

and

Surovell, T. A. J. R. Boyd, C. V. Haynes Jr., and G. W. L. Hodgins, 2016,
On the Dating of the Folsom Complex and its Correlation with the Younger Dryas, the End of Clovis, and Megafaunal Extinction.PaleoAmerica, 2:2, 81-89, DOI: 10.1080/20555563.2016.1174559
http://dx.doi.org/10.1080/20555563.2016.1174559

Sunday, 25 September 2016

How Did That Make It Through Peer Review?

How Did That Make It Through Peer Review?

How Did That Make It Through Peer Review? by Andrew Farke,
Andy Farke, Miscellaneous, Navel Gazing, Paleocommunity PLOS Blogs.
http://blogs.plos.org/paleocomm/2016/02/03/how-did-that-make-it-through-peer-review/

and

Allison, D. B., A. W. Brown, B. J. George, and K. A. Kaiser, 2016,
Reproducibility: A tragedy of errors. Nature, vol. 530, no. 7588,
pp. 27-29.
http://www.nature.com/news/reproducibility-a-tragedy-of-errors-1.19264

Yours,

Paul H.

Monday, 19 September 2016

Some Ancient Mars Lakes Formed Long After Others

Some Ancient Mars Lakes Formed Long After Others

Some ancient Mars lakes formed long after others
http://www.jpl.nasa.gov/news/news.php?feature=6619
https://www.sciencedaily.com/releases/2016/09/160915142043.htm

The paper is:

Wilson, S. A., A. D. Howard, J. M. Moore, and J. A. Grant,
2016 A Cold-Wet Mid-Latitude Environment on Mars
during the Hesperian-Amazonian Transition: Evidence
from Northern Arabia Valleys and Paleolakes. Journal
of Geophysical Research: Planets, 2016; DOI: 10.1002/2016JE005052
http://onlinelibrary.wiley.com/doi/10.1002/2016JE005052/abstract

Another article is:

Mars rover views spectacular layered rock formations
NASA/Jet Propulsion Laboratory, September 12, 2016
https://www.nasa.gov/feature/jpl/mars-rover-views-spectacular-layered-rock-formations
http://thescienceexplorer.com/universe/mars-rover-views-spectacular-layered-rock-formations

Yours,

Paul H.

Saturday, 10 September 2016

Geology For Next Tucson Gem & Mineral Show 2017

Geology For Next Tucson Gem & Mineral Show 2017

For those people going to the February 9-12, 2017, Tucson Gem & Mineral Show, the below, free PDF files, provides information about the geology of the Tucson area.

Spencer, J. E., 2006, Geologist's Guide to the Core Complex Geology Along the Catalina Highway, Tucson Area, Arizona, open file Report 06-01-A. 38 p

http://repository.azgs.az.gov/uri_gin/azgs/dlio/360

http://repository.azgs.az.gov/sites/default/files/dlio/files/nid360/ofr_06-01catalinafieldguide-colorprint.pdf

and there is:

Bezy, J. V., 2016, A Guide to the Geology of the Santa Catalina Mountains, Arizona: The Geology and Life Zones of a Madrean Sky Island. Arizona Geological Survey Down-to-Earth # 22, 83 p.

http://repository.azgs.az.gov/uri_gin/azgs/dlio/1679

http://repository.azgs.az.gov/sites/default/files/dlio/files/nid1679/bezy-santacatalina-22-final.pdf

Yours,

Paul H.