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



Monday, 25 April 2016

Weaubleau-Osceola Impact Structure Guidebook PDF File

Weaubleau-Osceola Impact Structure Guidebook PDF File

Evans, K. R., K. L. Mickus, C. W. Rovey II, and G. H. Davis
2003, Field Trip I: The Weaubleau-Osceola Structure:
Evidence of a Mississippian Meteorite Impact in
Southwestern Missouri, pp. 1-30, Association of Missouri
Geologists Field Trip Guidebook 50th Annual Meeting
Springfield, Missouri September 26-27, 2003. Report of
Investigation No. 75 and Guidebook No. 26
Missouri Department of Natural Resources,Rollo, Missouri
http://www.missourigeologists.org/Meeting2003/RI-75(2003AMGguidebook).pdf

Other guidebooks about Missouri geology can be found at:
Association of Missouri Geologists Field Trips and Guidebooks
http://www.missourigeologists.org/FieldtripsandGuidebooks.htm

Yours,

Paul H.

Sunday, 24 April 2016

PDF File of Crooked Creek Impact Structure, Missouri, Guidebook

PDF File of Crooked Creek Impact Structure, Missouri, Guidebook

Mulvany, 2004 (Gillman, J., editor), Association of Missouri Geologists Field Trip Guidebook, 51st Annual Meeting, Rolla, Missouri, October 1-2, 2004, 2004, Missouri Department of Natural Resources, Geological Survey and Resource Assessment Division. PDF file at:
http://www.missourigeologists.org/Meeting2004/AMGguidebook2004.pdf

Also, there is:

Kiilsgaard, T. H., Heyl, A. V. and Brock, M. R., 1962, The Crooked Creek disturbance, southeast Missouri. U.S. Geological Survey Professional Paper 450-E, p. E14-E19.
http://pubs.usgs.gov/pp/0450e/report.pdf

An informative web page is at:

Crooked Creek Impact Crater, Missouri
http://impactcraters.us/crooked_creek_missouri
http://impactcraters.us/home

Yours,

Paul H.

Friday, 22 April 2016

Dental Disparity Saved Birds From K-Pg Extinction Event

Dental Disparity Saved Birds From K-Pg Extinction Event

Press Releases
New Royal Tyrrell Museum research investigates the pace of the dinosaur extinction, and why birds may have survived
https://royaltyrrellmuseum.wordpress.com/2016/04/21/new-royal-tyrrell-museum-research-investigates-the-pace-of-the-dinosaur-extinction-and-why-birds-may-have-survived/


Bird-like Dinosaurs with Teeth Died Off Abruptly, Beaked Birds Survived. Philip J. Currie Dinosaur Museum
https://dinomuseum.ca/wp-content/uploads/2016/04/Larson-2016-Bird-Dinosaur-Press-Release-PJCDM.pdf


Journal Reference:

Larson, D.W., Brown, C.M., and Evans, D.C. 2016. Dental disparity and ecological stability in bird-like dinosaurs prior to the end- Cretaceous mass extinction. Current Biology 26, 1–9.
http://www.cell.com/current-biology/fulltext/S0960-9822(16)30249-4
http://www.birdforum.net/showthread.php?t=323286

Fossil Fakes and Their Recognition

Fossil Fakes and Their Recognition

This is for the fossil hunters on this list.

Fake and mislabeled meteorites are not the only frauds to beware of. there are also fake fossils galore.

Corbacho, J., and C. Sendino, 2015, Fossil Fakes and Their Recognition. Deposits Magazine.
https://depositsmag.com/2015/12/19/fossil-fakes-and-their-recognition/
https://www.researchgate.net/publication/265208436_Fossil_fakes_and_their_recognition
http://www.elfosil.com/DICRAN3HT.htm

Related papers:

Corbacho, J., J. A. Vela, and J. A. Cuevas, 2007, Falsificación de trilobites del Norte de África. Batallería. vol. 13, pp. 29-36.
https://www.researchgate.net/publication/265168347_FALSIFICACION_DE_TRILOBITES_DEL_NORTE_DE_AFRICA
https://portal.uah.es/portal/page/portal/universidad_mayores/descarga_material_docente/material_ciencias_naturales/documentos/falsos_fosiles.pdf

Corbacho, J., and J. A. Vela, 2009, Fossils Falsificación of N. of Africa. (non trilobites) Batallería. vol. 14, pp. 53-56.
https://www.researchgate.net/publication/265168516_FALSIFICACION_DE_FOSILES_DEL_N_DE_AFRICA_NO_TRILOBITES

Corbacho, J., C. Sendino, and M.Tahiri, 2011, Palaeontological fakes, Batalleria. vol. 16, pp. 37-45
https://www.researchgate.net/publication/265168169_Palaeontological_fakes_Falsificaciones_paleontologicas
https://www.researchgate.net/profile/Joan_Corbacho/publication/265168169_Palaeontological_fakes_Falsificaciones_paleontologicas/links/54038f9d0cf23d9765a5cf37.pdf

Corbacho, J., I. Corbacho, S, Morrison, and M. Valent, 2015, Latest techniques detected in the falsification of fossils Batallería. vol. 22, pp. 22-27.
https://www.researchgate.net/publication/284737545_Latest_techniques_detected_in_the_falsification_of_fossils

Paper by Mats E. Eriksson and George O. Poinar Eriksson, M. E., and G. O. Poinar, 2015, Fake it till you make it-the uncanny art of forging amber. Geology Today. vol. 31, no. 1, pp. 21-27.
https://www.researchgate.net/publication/273287099_Fake_it_till_you_make_it-the_uncanny_art_of_forging_amber

Figure 11: An exceptionally well-preserved trilobite (measuring 8 cm in length) in Baltic amber. Figure from above article.
https://www.researchgate.net/figure/273287099_fig12_Figure-11-An-exceptionally-well-preserved-trilobite-measuring-8-cm-in-length-in-Baltic

A lecture about paleontological mistakes.

Whoops! Fossil Faux Pas! Royal Tyrrell Museum Speaker Series 2016 Jon Noad, petroleum geologist, Calgary
https://www.youtube.com/watch?v=DXTdQXviUkE

Yours,

Paul H.

Thursday, 21 April 2016

Thursday, 14 April 2016

The Cretaceous-Palaeogene Mass Extinction: What Do We Really Know?

The Cretaceous-Palaeogene Mass Extinction: What Do We Really Know?

The Cretaceous-Palaeogene Mass Extinction: What Do We Really Know?
Dr. François Therrien, Curator of Dinosaur Palaeoecology,
Royal Tyrrell Museum of Palaeontology
Royal Tyrrell Museum Speaker Series 2016 (video)
https: // royaltyrrellmuseum.wordpress.com/2016/04/05/speaker-series-2016-the-cretaceous-palaeogene-mass-extinction-what-do-we-really-know

Yours,
Paul H.

Friday, 8 April 2016

Neogene Supernovae Showered Earth with Radioactive Debris

Neogene Supernovae Showered Earth with Radioactive Debris

Supernovae showered Earth with radioactive
debris. A series of massive supernova explosions near our
solar system showered the Earth with radioactive debris
between 3.2 and 1.7 million years ago, Australian National
University, April 6, 2016
https://www.sciencedaily.com/releases/2016/04/160406133622.htm
http://phys.org/news/2016-04-proof-ancient-supernovae-zapped-earth.html

The papers are:

Wallner, A., J. Feige, N. Kinoshita, M. Paul, L. K. Fifield, R. Golser,
M. Honda, U. Linnemann, H. Matsuzaki, S. Merchel, G. Rugel, S. G.
Tims, P. Steier, T. Yamagata, and S. R. Winkler, 2016, Recent
near-Earth supernovae probed by global deposition of interstellar
radioactive 60Fe. Nature. vol. 532, no. 7597): 69-72. DOI: 10.1038/nature17196
http://www.nature.com/nature/journal/v532/n7597/full/nature17196.html

Breitschwerdt, D., J. Feige, M. M. Schulreich, M. A. de. Avillez,
C. Dettbarn, and B. Fuchs, 2016, The locations of recent
supernovae near the Sun from modelling 60Fe transport
Nature. vol. 532, no. 7597, pp. 73–76 (07 April 2016) doi:10.1038/nature17424
http://www.nature.com/nature/journal/v532/n7597/full/nature17424.html

A related paper is:

Fields, B. D., and J. Ellis, 1999, On deep-ocean 60Fe as a fossil of
a near-earth supernova. New Astronomy. vol. 4, no 6,
September pp., Pages 419–430.
abstract at http://www.sciencedirect.com/science/article/pii/S1384107699000342
PDF file at http://cds.cern.ch/record/372621/files/9811457.pdf

Yours,

Paul H.

Friday, 1 April 2016

Mile-high Mars mounds built by wind and climate change

Mile-high Mars mounds built by wind and climate change

Mile-high Mars mounds built by wind and climate change
University of Texas at Austin, March 31, 2016
http://news.utexas.edu/2016/03/31/mile-high-mars-mounds-built-by-wind-and-climate-change
https://www.sciencedaily.com/releases/2016/03/160331122351.htm

Day, M., W. Anderson, G. Kocurek and D. Mohrig, 2016,
Carving intracrater layered deposits with wind on Mars.
Geophysical Research Letters, 2016 DOI: 10.1002/2016GL068011
http://onlinelibrary.wiley.com/doi/10.1002/2016GL068011/abstract;jsessionid=240046526192E813385D12531F8E8B70.f03t02

A related paper is:

Geissler, P.E., N. W. Stantzos, N. t. Bridges, M. C. Bourke,
S. Silvestro, and Fenton, 2013, Shifting sands on Mars:
insights from tropical intra-crater dunes. Earth Surface
Processes and Landforms, Vol. 38, Issue 4, p. 407-412,
DOI: 10.1002/esp.3331
https://earthandplanetary.wordpress.com/45-2/
https://earthandplanetary.files.wordpress.com/2014/01/geissler3.pdf
https://www.researchgate.net/publication/235128057_Shifting_sands_on_Mars_Insights_from_tropical_intra-crater_dunes

PDFs of more papers about Martian dunes and other
lndforms at https://earthandplanetary.wordpress.com/45-2/

Yours,

Paul H.

Monday, 21 March 2016

Does Antarctica Have A Hidden Layer Of Iron Meteorites Below Its Surface?

Does Antarctica Have A Hidden Layer Of Iron Meteorites Below Its Surface?

Does Antarctica Have A Hidden Layer Of Meteorites Below
Its Surface? Universe Today
http://www.universetoday.com/127492/does-antarctica-have-a-hidden-layer-of-meteorites-below-its-surface/

Iron meteorites 'buried in Antarctica' by the Sun, BBC News
http://www.bbc.com/news/science-environment-35587680

UCC graduate solves meteorite mystery that puzzled
scientists for decades by Olivia Kelleher, March 10, 2016
http://www.irishexaminer.com/ireland/video-ucc-graduate-solves-meteorite-mystery-that-puzzled-scientists-for-decades-386463.html

"A former physics graduate from UCC has solved a mystery
that has puzzled planetary scientists and Antarctic explorers
for decades."

The paper is:

Evatt, G. W., M. J. Coughlan, K. H. Joy, A. R. D. Smedley, P. J.
Connolly, and I. D. Abrahams, 2016 A potential hidden layer
of meteorites below the ice surface of Antarctica. Nature
Communications 7, Article number: 10679 doi:10.1038/ncomms10679
http://www.nature.com/ncomms/2016/160216/ncomms10679/full/ncomms10679.html

Yours,

Paul H.

Sunday, 20 March 2016

Forest Circles, Natural Circular Features Resulting From Self-Organizing Processes

Forest Circles, Natural Circular Features Resulting From Self-Organizing Processes

Natural processes, other than impacts, can also cause circular
features seen in aerial photography and other imagery. Forest
circles are an example of a circular feature create by the
interaction of geology with plants. Go read:

Brauneder, K., S. M. Hamilton, and K. Hattori, 2016,
Geochemical processes in the formation of ‘forest rings’:
examples of reduced chimney formation in the absence of
mineral deposits. Geochemistry Exploration Environment.
vol. 16, no. 1, pp. 2015-2360. DOI: 10.1144/geochem2015-360
https://www.researchgate.net/publication/292337890_Geochemical_processes_in_the_formation_of_%27forest_rings%27_Examples_of_reduced_chimney_formation_in_the_absence_of_mineral_deposits
http://geea.geoscienceworld.org/content/early/2016/01/19/geochem2015-360.abstract

More information in:

Hamilton, S.M., Burt, A.K., Hattori, K.H. & Shirota, J. 2004a.
The distribution and source of forest ring-related methane
in northeastern Ontario. In: Summary of Fieldwork and Other
Activities, 2004. Ontario Geological Survey Open File Report
no. 6145, pp. 21-1–21-6.
http://www.geologyontario.mndmf.gov.on.ca/mndmaccess/mndm_dir.asp?type=pub&id=ofr6145
http://www.mndm.gov.on.ca/en/news/mines-and-minerals/summary-field-work-and-other-activities-2004

Hamilton, S.M. & Hattori, K.H. 2008. Spontaneous potential
and redox responses over a forest ring. Geophysics. vol. 37,
pp. B67–B75.
http://mysite.science.uottawa.ca/khattori/Hamilton-SP-Geophysics2008.pdf

Brauneder, K., Keiko H. Hattori, and G. Southam, 2009,
Investigation of physical, chemical and microbiological
processes in the development of forest rings in Ontario.
Abstract, International Applied Geochemistry Symposium, 2009
https://www.academia.edu/16757327/Investigation_of_physical_chemical_and_microbiological_processes_in_the_development_of_forest_rings_in_Ontario

The mysterious forest rings of northern Ontario
by Elle Andra-Warner, May 21, 2008, CBC,
http://www.cbc.ca/news2/background/tech/science/forest-rings.html

More PDF files about Canadian rocks, minerals, and ores at:
http://mysite.science.uottawa.ca/khattori/surfaceDispersion.html
http://mysite.science.uottawa.ca/khattori/chalcophile.html
http://mysite.science.uottawa.ca/khattori/

Yours,

Paul H.

Spherulites From Chicxulub Impact Found in Columbia

Spherulites From Chicxulub Impact Found in Columbia

Remains of Meteorite That Killed Dinosaurs Found in Colombia,
Latin America Times Herald, March 16, 2016
http://www.laht.com/article.asp?ArticleId=2407852&CategoryId=13936

Fragments of Dinosaur-Killer Meteorite Landed in Colombia,
The Costa Rica Star, March 15, 2016
http://news.co.cr/fragments-of-dinosaur-killer-meteorite-landed-in-colombia/45582/

First South American trace of meteorite that killed dinosaurs found in
Colombia, News Latino, March 16, 2016
http://latino.foxnews.com/latino/lifestyle/2016/03/16/first-south-american-vestige-meteorite-that-killed-dinosaurs-found-in-colombia/

Hallan en Colombia restos del meteorito que hizo extinguir a los
dinosaurios . El equipo científico estuvo liderado por el geólogo
Hermann Bermúdez que hizo la investigación en la isla de Gorgonilla,
en el Pacífico, Pulzo, March 15, 2016
http://www.pulzo.com/vivir-bien/10-dilemas-que-tienen-todas-las-mujeres-en-cualquier-momento/PP5556?from=home-nacion

Remains of mystery meteorite found in Colombia by Latin Correspondent
http://latincorrespondent.com/2016/03/remains-of-mystery-meteorite-found-in-colombia/

Yours,
Paul H.

Saturday, 19 March 2016

New Paper In Southeastern Geology About Carolina Bays

New Paper In Southeastern Geology About Carolina Bays

The paper is:

Moore, C. R., M. J. Brooks, D. J. Mallinson, P. R. Parham, A. H. Ivetser,
J. K. Feathers, 2016, The Quaternary evolution of Herdon Bay, a
Carolina Bay on the coastal plain of of North Carolina (USA): Implications
for paleoclimate and oriented lake genesis. Southeastern Geology.
vol. 51, no. 4, pp. 145-171. (March 2016)

They found that LiDAR images showed that Herdon Bay, a Carolina Bay
exhibited a regressive sequence of sand rims that partially backfill the
the older portions of this bay. These rims and subsurface data provided
evidence for the episodic migration of this bay by more than 600 meters
to the northwest. Single grain optically stimulated luminescence (OSL)
age estimates indicate that the oldest rim formed about 36.7 +/- 4.1 ka
and the youngest rim formed around 29.6 +/- 3.1 to 27.2 +/- 2.8 ka.
They interpreted these dates as indicating the rim construction and bay
migration was coincident with Marine Isotope Stage 3 through early
Marine Isotope Stage, which was a time of rapid oscillations in climate.

The PDF file of this paper can be found at either https://goo.gl/7hbsfs
or
https://www.academia.edu/23377396/THE_QUATERNARY_EVOLUTION_OF_HERNDON_BAY_A_CAROLINA_BAY_ON_THE_COASTAL_PLAIN_OF_NORTH_CAROLINA_USA_IMPLICATIONS_FOR_PALEOCLIMATE_AND_ORIENTED_LAKE_GENESIS

A poster can be found at either https://goo.gl/h0S9ge or
https://www.academia.edu/6804154/Rapid_Scour_Sand_Rim_Construction_and_Basin_Migration_of_a_Carolina_Bay_in_Southeastern_North_Carolina

Yours,

Paul H.

Wednesday, 16 March 2016

Fairy Circles Found in Western Australia And Eelgrass Fairy Rings Found in Baltic Sea

Fairy Circles Found in Western Australia And Eelgrass Fairy Rings Found in Baltic Sea

Some examples of self-organizing features that create natural circles.

Fairy circles found in Australian outback March 15, 2016
by Bob Yirka, Helmholtz Centre For Environmental Research
https://www.ufz.de/index.php?en=36336&webc_pm=11/2016 ,
https://www.sciencedaily.com/releases/2016/03/160315090116.htm , and
http://phys.org/news/2016-03-fairy-circles-australian-outback.html

Dragons, aliens, bugs? Scientists may have solved the mystery
of the desert’s ‘fairy circles’ by Sarah Kaplan, Washington
Post, March 15, 2016
https://www.washingtonpost.com/news/morning-mix/wp/2016/03/15/dragons-aliens-bugs-scientists-may-have-solved-the-mystery-of-the-deserts-fairy-circles/

Once thought to exist only in Namibia, circles spotted 6,200
miles away are helping sort out how these odd features form,
Smithsonian
http://www.smithsonianmag.com/science-nature/mysterious-fairy-circles-have-been-found-western-australia-180958407/

The paper is:

Getzin, S., H. Yizhaq, B. Bell, T. E. Erickson, A. C. Postle, I. Katra,
O. Tzuk, Y. R. Zelnik, K. Wiegand, T. Wiegand, and E. Meron,
2016, Discovery of fairy circles in Australia supports self-
organization theory. Proceedings of the National Academy of
Sciences, March 2016; 201522130 DOI: 10.1073/pnas.1522130113
http://www.pnas.org/content/early/2016/03/09/1522130113

Another paper is:

Getzin, S., K. Wiegand, T. Wiegand1, H. Yizhaq, J. von Hardenberg,
and E. Meron. 2015, Adopting a spatially explicit perspective to
study the mysterious fairy circles of Namibia. Ecography.
vol. 38, no. 1, pp. 1–11.
http://onlinelibrary.wiley.com/doi/10.1111/ecog.00911/abstract

Also, there is:

Mysterious ocean circles off the Baltic coast explained,
University of Southern Denmark, January 30, 2014
https://www.sciencedaily.com/releases/2014/01/140130102040.htm

The paper is:

Borum, J. Ane L. Raun, H. Hasler-Sheetal, M. O. Pedersen,
O. Pedersen, and M. Holmer, 2013, Eelgrass fairy rings: sulfide as
inhibiting agent. Marine Biology. vol. 161, No. 2, pp. 351-358.
351 DOI: 10.1007/s00227-013-2340-3
http://link.springer.com/article/10.1007%2Fs00227-013-2340-3

PDF file at:
http://www.bio-web.dk/ole_pedersen/pdf/Marine%20Biology%202014%20(Eegrass%20fairy%20rings).pdf

Yours,

Paul H.

Monday, 7 March 2016

ECORD to Drill Chicxulub K-Pg Impact Crater

ECORD to Drill Chicxulub K-Pg Impact Crater

Scientists to drill at site of dinosaur-killing asteroid crater
by Jareen Imam, CNN, March 4, 2o16
http://www.cnn.com/2016/03/04/world/scientists-drill-impact-crater-irpt/index.htm

Some links:-
Expedition 364 - Chicxulub K-Pg Impact Crater
http://www.eso.ecord.org/expeditions/364/364.php

IODP Proposal 548-Full3 -
http://www.eso.ecord.org/docs/364/548-Full3_Morgan.pdf

Addendum 548-Add4 -
http://www.eso.ecord.org/docs/364/548-Add4_Morgan.pdf

Morgan, J., and S. Gulick, 2012, Highlights of IODP
Proposal Chicxulub: Drilling the K-Pg Impact Crater
(IODP #548). ECORD Newsletter # 19 - October 2012.
http://www.ecord.org/pub/Chicxulub-IODP-NL19.pdf

Yours

Paul H.

Monday, 29 February 2016

Earth's Water Came From Space Dust?

Earth's Water Came From Space Dust?

Sullivan, C., 2015, Earth’s water came from space dust during
planetary formation, Eos. vol. 96, no. 2, p. 3. doi:10.1029/2015EO040147.

" A new analysis of lava from the deep mantle indicates that
water-soaked dust particles, rather than a barrage of icy
comets, asteroids, or other bodies, delivered water to the newly
forming Earth."

Web version at
https://eos.org/articles/earths-water-came-from-space-dust-during-planetary-formation

PDF version in full Eos issue at
https://eos.org/wp-content/uploads/2016/01/15-Jan_Magazine.pdf?6ffe00

More articles at https://eos.org/news-types/news and in PDF file at:
https://eos.org/wp-content/uploads/2016/01/15-Jan_Magazine.pdf?6ffe00

Recent and current issues of Eos News at:
https://eos.org/current-issues

The paper is:-
Hallis, L. J., G. R. Huss, K. Nagashima, G. J. Taylor, S. A.
Halldórsson, D. R. Hilton, M. J. Mottl, and K. J. Meech,
2016, Evidence for primordial water in Earth’s deep mantle.
Science. Vol. 350, Issue 6262, pp. 795-797.
DOI: 10.1126/science.aac4834
http://science.sciencemag.org/content/350/6262/795

Yours,
Paul H.

Sunday, 21 February 2016

The Importance of Data Set Provenance (Metadata) for Science

The Importance of Data Set Provenance (Metadata) for Science

Hills, D. J., R. R. Downs, R. Duerr, J. C. Goldstein,
M. A. Parsons, and H. K. Ramapriyan, 2016, The
Importance of Data Set Provenance for Science. Eos
Earth & Space Science News. vol. 97, no. 3 pp. 10-11.
February 1, 2016 (December 4, 2015),
https://eos.org/opinions/the-importance-of-data-set-provenance-for-science

"Scientific research must rest on a solid foundation
of data preservation, provenance, and contextual
information. New technical and normative approaches
are required to identify, capture, and track all
details necessary to demonstrate data validity and
to better ensure scientific reproducibility."

Yours,

Paul H.

Human Radio Transmissions Create Barrier to "Killer Electrons.

Human Radio Transmissions Create Barrier to "Killer Electrons.

Wendel, J., 2016, Human Radio Transmissions
Create Barrier to "Killer Electrons. Eos Earth & Space
Science News. vol. 95, no. 3, p. 3, February 1, 2016
https://eos.org/articles/human-radio-transmissions-create-barrier-to-killer-electrons


SM14C-05: The Impenetrable Barrier Revisited –
Anthroprogenic Effects on Earth’s Radiation Belts
AGU Fall Meeting December 14, 2015 http://bit.ly/barrier-talk
and https://agu.confex.com/agu/fm15/meetingapp.cgi/Paper/76627

Yours,

Paul H.

China Building 500-meter Radio Telescope In Search For Extraterrestrial Intelligence

China Building 500-meter Radio Telescope In Search For Extraterrestrial Intelligence

China Building World's Largest Radio Telescope for
Astronomy and SET by Giulio Prisco, July 27, 2015
https://hacked.com/china-building-worlds-largest-radio-telescope-astronomy-seti/

China is Building an Absolutely Massive Radio
Telescope by George Dvorsky, July 24, 2015
http://io9.gizmodo.com/china-is-building-an-absolutely-massive-radio-telescope-1719983857

China’s Alien Life Hunt Built Online And Sparks New
‘Contest’ by Carlo Diokno, STGIST,February 20, 2016
http://stgist.com/2016/02/chinas-alien-life-hunt-built-online-and-sparks-new-contest-6994


It is interesting that they are taking advantage of
karst landforms, just as Puerto Rica’s Arecibo
Observatory's 300-meter dish does, to build their
500-meter dish.

Yours,
Paul H.

Friday, 19 February 2016

Mystery of Disappearing Asteroids Solved

Mystery of Disappearing Asteroids Solved

Mystery of disappearing asteroids solved.
by University of Hawaii at Manoa's Institute
for Astronomy, Honolulu, February 17, 2016
http://www.astronomy.com/news/2016/02/mystery-of-disappearing-asteroids-solved
http://www.ifa.hawaii.edu/info/press-releases/disintegrating_asteroids/

A new study finds that most asteroids and
comets are destroyed in a drawn out, long
hot fizzle, much farther from the Sun than
previously thought."

The paper is:

Granvik, M., A. Morbidelli, R. Jedicke, B. Bolin, W. F. Bottke,
E. Beshore, D. Vokrouhlický, M. Delbo, and P/ Michel, 2016.
Super-catastrophic disruption of asteroids at small perihelion
distances. Nature. vol. 530, no. 7590, pp. 303–306
http://www.nature.com/nature/journal/v530/n7590/full/nature16934.html

Yours,

Paul H.

Wednesday, 17 February 2016

Spotting a Fake Fossil at the Tucson Gem and Mineral Show

Spotting a Fake Fossil at the Tucson Gem and Mineral Show

Spotting a fake fossil at the Tucson Gem and Mineral Show
By Sonu Wasu, Tucson News, Feb 12,
http://www.tucsonnewsnow.com/story/31213329/spotting-a-fake-fossil-at-the-tucson-gem-and-mineral-show

Tainted Treasures: Federal agents on lookout for stolenhistory
By Sonu Wasu, Tucson News, Feb 12,
http://www.tucsonnewsnow.com/story/31203472/tainted-treasures-federal-agents-on-lookout-for-stolen-history

Slideshow: Federal Agents Work to return Stolen treasures
http://www.tucsonnewsnow.com/slideshow?widgetID=177660&clienttype=generic

Yours,

Paul H.