Including Original "Paul H. Letters" Copyright © 1996-2018 Paul V. Heinrich - All rights reserved.



Tuesday, 27 March 2018

Fossil Micrometeorites Suggest Cosmic Dust is Common in the Geological Record

Fossil Micrometeorites Suggest Cosmic Dust is Common in the Geological Record

Suttle, M.D. and Genge, M.J., 2017. Diagenetically altered fossil
micrometeorites suggest cosmic dust is common the geological
record. Earth and Planetary Science Letters, 476, pp.132-142.
https://www.sciencedirect.com/science/article/pii/S0012821X17304399

"We report the discovery of fossil micrometeorites from Late
Cretaceous chalk." (Seaford Chalk Formation, United Kingdom)

"However, this study demonstrates that fossil, pseudomorphic
micrometeorites can be recognized and are likely common within
the geological record."

It also appears that micrometeorites and cosmic spherules of
various ages are common in Antarctic surficial and glacial deposits.

Genge, M.J., Davies, B., Suttle, M.D., van Ginneken, M. and Tomkins,
A.G., 2017. The mineralogy and petrology of I-type cosmic spherules:
Implications for their sources, origins and identification in sedimentary
rocks. Geochimica et Cosmochimica Acta, 218, pp. 167-200.
https://www.sciencedirect.com/science/article/pii/S0016703717305495

Van Ginneken, M., Genge, M.J., Folco, L. and Harvey, R.P., 2016.
The weathering of micrometeorites from the Transantarctic
Mountains. Geochimica et Cosmochimica Acta, 179, pp. 1-31.
https://www.sciencedirect.com/science/article/pii/S0016703716300011
https://spiral.imperial.ac.uk/bitstream/10044/1/29482/9/1-s2.0-S0016703716300011-main.pdf
https://www.researchgate.net/publication/293017461_The_weathering_of_micrometeorites_from_the_Transantarctic_Mountains
https://www.researchgate.net/profile/Matthias_Van_Ginneken2

Although off-topic, the below is an interesting paper that is
currently open access.

T. C. Chamberlin, "Studies for Students:
The Method of Multiple Working Hypotheses,"
The Journal of Geology 5, no. 8
(Nov. - Dec., 1897): 837-848.
https://www.journals.uchicago.edu/doi/abs/10.1086/607980

Yours,

Paul H.

Monday, 26 March 2018

New Type of Highly-vaporized Microtektite from the Transantartic, Mountains, Antartica

New Type of Highly-vaporized Microtektite from the Transantartic, Mountains, Antartic

Van Ginneken, M., Genge, M.J. and Harvey, R.P., 2018. A new type of highly-vaporized microtektite from the Transantarctic Mountains. Geochimica et Cosmochimica Acta. Volume 228, Pages 81–94.
https://www.sciencedirect.com/science/article/pii/S0016703718301236

https://cosmochemistry-papers.com/2018/03/07/a-new-type-of-highly-vaporized-microtektite-from-the-transantarctic-mountains/

Older papers:

Folco, L., Bigazzi, G., D’Orazio, M. and Balestrieri, M.L., 2011.
Fission track age of Transantarctic Mountain microtektites.
Geochimica et Cosmochimica Acta, 75(9), pp. 2356-2360.
https://www.sciencedirect.com/science/article/pii/S0016703711000937

Folco, L., D'Orazio, M., Gemelli, M. and Rochette, P., 2016. Stretching out the Australasian microtektite strewn field in Victoria Land Transantarctic Mountains. Polar Science, 10(2), pp. 147-159.
https://www.sciencedirect.com/science/article/pii/S187396521630007X

https://www.researchgate.net/publication/297590920_Stretching_out_the_Australasian_microtektite_strewn_field_in_Victoria_Land_Transantarctic_Mountains

Folco, L., Glass, B.P., D'Orazio, M. and Rochette, P., 2010. A common volatilization trend in Transantarctic Mountain and Australasian microtektites: Implications for their formation model and parent crater location. Earth and Planetary Science Letters, 293(1-2), pp. 135-139.
https://www.researchgate.net/publication/221954274_A_common_volatilization_trend_in_Transantarctic_Mountain_and_Australasian_microtektites_Implications_for_their_formation_model_and_parent_crater_location

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



Folco, L., D’Orazio, M., Tiepolo, M., Tonarini, S., Ottolini, L.,

Perchiazzi, N., Rochette, P. and Glass, B.P., 2009. Transantarctic Mountain microtektites: Geochemical affinity with Australasian microtektites.
Geochimica et Cosmochimica Acta, 73(12), pp. 3694-3722.
https://www.researchgate.net/profile/Natale_Perchiazzi/publication/233851590_Microtektites_from_Victoria_Land_Transantarctic_Mountains/links/543e818c0cf2eaec07e64578/Microtektites-from-Victoria-Land-Transantarctic-Mountains.pdf

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

https://www.academia.edu/6351169/Transantarctic_Mountain_microtektites

van Ginneken, M., Suavet, C., Cordier, C., Folco, L., Rochette, P., Sonzogni, C. and Perchiazzi, N., 2012. Oxygen isotope composition of meteoritic ablation debris from the Transantarctic Mountains: Constraining the parent body and implications for the impact scenario. Meteoritics & Planetary Science, 47(11), pp.1738-1747.
https://www.researchgate.net/publication/235779783_Oxygen_isotope_composition_of_meteoritic_ablation_debris_from_the_Transantarctic_Mountains_Constraining_the_parent_body_and_implications_for_the_impact_scenario

Yours,

Paul H.




Friday, 23 March 2018

Small meteorite stolen from Science Museum of Virginia

Small meteorite stolen from Science Museum of Virginia
Associated Press, WHSV, March 19, 2018
http://www.whsv.com/content/news/Small-meteorite-stolen-from-Science-Museum-of-Virginia-477276443.html

Police investigating after meteorite stolen from Science Museum of Virginia, but a major heist it was not
By Ned Oliver, Richmond Times-Dispatch, March 16, 2018
http://www.richmond.com/news/local/crime/police-investigating-after-meteorite-stolen-from-science-museum-of-virginia/article_e3e2074a-b15e-5411-9ff1-d31cc63dce28.html

Meteorite stolen from exhibit at Science Museum of Virginia
By Justin Wm. Moyer, Washington Post, March 16, 2018
https://www.washingtonpost.com/local/public-safety/meteorite-stolen-from-richmond-museum/2018/03/16/6f634460-2957-11e8-8478-892125e3f2ba_story.html

Science Museum of Virginia shares info about meteorites following last week’s theft
By Amy Lacey, WHSV, March 22, 2018
http://wric.com/2018/03/22/science-museum-of-virginia-shares-info-about-meteorite-stolen-last-week/

Yours,

Paul H.

Monday, 12 March 2018

NASA Astronomers Finding More Near-Earth Asteroids Than Expected




NASA Astronomers Finding More Near-Earth Asteroids Than Expected

What Are Asteroids? NASA Astronomers Are Finding More Near-Earth Objects Than Ever Before, Newsweek March 3, 2018
http://www.newsweek.com/what-are-asteroids-nasa-astronomers-are-finding-more-near-earth-objects-ever-828360

Asteroid tracking program adds Google Cloud and AGI as tech partners Room-Eu, The Space Journal, March 5, 2018.
https://room.eu.com/news/asteroid-tracking-program-adds-google-cloud-and-agi-as-tech-partners

Yours,

Paul H.

The "Great Expectations Syndrome" and Mass Extinctions

The "Great Expectations Syndrome" and Mass Extinctions

Below is an interesting paper about mass extinctions.

Racki, G. 2012. The Alvarez impact theory of mass extinction; limits to its applicability and the "great expectations syndrome".
Acta Palaeontologica Polonica 57 (4): 681-702.

https://www.app.pan.pl/archive/published/app57/app20110058.pdf

https://www.app.pan.pl/article/item/app20110058.html

https://www.researchgate.net/publication/239739714_The_Alvarez_impact_theory_of_mass_extinction_limits_to_its_applicability_and_the_great_expectations_syndrome

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

http://agro.icm.edu.pl/agro/element/bwmeta1.element.agro-d1182c96-9ae1-48af-858c-a2f844a3d830/c/app20110058_681.pdf

another paper is:

Racki, G., 2015. Catastrophism and neocatastrophism versus cosmic hazard: Ager versus Alvarez; Cuvier versus Laplace.
Palaios, 30(6), pp. 432-434.

http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.894.7456&rep=rep1&type=pdf

https://www.researchgate.net/publication/279238673_Catastrophism_and_neocatastrophism_versus_cosmic_hazard_Ager_versus_Alvarez_Cuvier_versus_Laplace

Yours,

Paul H.

Tuesday, 6 March 2018

How to Disagree

How to Disagree

Below is an interesting article about disagreeing with people.

Graham, P., 2008, How to Disagree
http://www.paulgraham.com/disagree.html

Also, there is:

Graham's Hierarchy of Disagreement

https://commons.wikimedia.org/wiki/File:Graham%27s_Hierarchy_of_Disagreement.svg

https://commons.wikimedia.org/wiki/Template:Other_versions/Graham%27s_Hierarchy_of_Disagreement

Graham's hierarchy of disagreement
https://en.wikipedia.org/wiki/Paul_Graham_(programmer)#Graham's_hierarchy_of_disagreement

Best wishes,

Paul H.

Sunday, 4 March 2018

Drumlin Formation Not Necessarily Evidence Of Catastrophic Event

Drumlin Formation Not Necessarily Evidence Of Catastrophic Event

People have selectively used the ideas of Dr. John Shaw to claim that they are undisputed indicators of catastrophic subglacial floods associated with extraterrestrial impacts. However, in their arguments, they completely either ignore over overlook any other research that strongly indicate that there is a lack of
any connection between catastrophic subglacial floods and drumlin formation. Some of this recent research is:
Observations from the surge-type glacier Múlajökull in Iceland underpin new modeling results that suggest the glacier's drumlins grow during quiet intervals of normal flow between glacial surges.
Journal of Geophysical Research: Earth Surface
https://eos.org/research-spotlights/a-new-model-of-drumlin-formation

Publications are:

Iverson, N.R., McCracken, R.G., Zoet, L.K., Benediktsson, Í.Ö., Schomacker, A., Johnson, M.D. and Woodard, J., 2017. A theoretical model of drumlin formation based on observations at Múlajökull, Iceland. Journal of Geophysical Research: Earth Surface, 122(12), pp. 2302-2323. DOI: 10.1002/2017JF004354
http://onlinelibrary.wiley.com/doi/10.1002/2017JF004354/abstract

Iverson, N.R., McCracken, R., Zoet, L., Benediktsson, Í., Schomacker, A., Johnson, M., Finlayson, A., Phillips, E. and Everest, J., 2016. A theoretical model of drumlin formation based on observations at Múlajökull, Iceland. Geophysical Research Abstracts. Vol. 18, EGU2016-2655, 2016
http://meetingorganizer.copernicus.org/EGU2016/EGU2016-2655.pdf

http://adsabs.harvard.edu/abs/2016EGUGA..18.2655I

Svante Björck and Per Sandgren, 2017, "The Beauty of Drumlins and the Mystery of their Genesis", May 12th 2017, A mini-symposium to honor the retirement of Per Möller, Department of Geology, Lund University.
http://www.geology.lu.se/sites/geology.lu.se/files/program_12_maj_drumlisymposiet_v2.pdf

https://www.geology.lu.se/event/symposium-the-beauty-of-drumlins-and-the-mystery-of-their-genesis

Yours,

Paul H.

Friday, 2 March 2018

Urban Impactites



Urban Impactites

Meteorite Impactites in London: Irongate House, Houndsditch EC3
Ruth Siddall, Urban Geology in London No. 24, December 2014.
http://www.ucl.ac.uk/~ucfbrxs/Homepage/walks/IrongateHouse.pdf

For the fossil aficionados:

How to Spot the Fossils Hiding in Plain Sight
Traces of prehistoric life are everywhere.
by Jessica Leigh Hester, Atlas Obscura, Feb. 23, 2018
https://www.atlasobscura.com/articles/find-fossils-urban-geology

London Pavement Geology
http://londonpavementgeology.co.uk

Yours,

Paul H.