Including Original "Paul H. Letters" Copyright © 1996-2025 Paul V. Heinrich / website © 1996-2025 Dirk Ross - All rights reserved.



Wednesday, 22 September 2021

Prehistoric Tunguska-sized Airburst in Jordan Valley 22SEP2021

Prehistoric Tunguska-sized Airburst in Jordan Valley

Bunch, T.E., LeCompte, M.A., Adedeji, A.V. et al. 
A Tunguska sized airburst destroyed Tall el-Hammam a Middle Bronze Age city in the Jordan Valley near the Dead Sea. Sci Rep 11, 18632 (2021).
https://doi.org/10.1038/s41598-021-97778-3

https://www.nature.com/articles/s41598-021-97778-3

Yours,

Paul H.

Monday, 20 September 2021

OT: LIVE: Volcano erupts on La Palma in the Canary Islands 20SEP2021

OT: LIVE: Volcano erupts on La Palma in the Canary Islands

Not meteorites, but still cool geology, look at LIVE: Volcano erupts on La Palma in the Canary Islands:
https://www.youtube.com/watch?v=CmQVquojJfo

I hope those are not urban lights in the foreground.
I do not know what the background chatter is about.

Stay Safe,

Paul

Sunday, 5 September 2021

Photogrammetric documentation of geologic features with a smartphone 05SEP2021

Photogrammetric documentation of geologic features with a smartphone

Below is an open access paper about photogrammetric documentation of geologic features in the field with a smartphone.

Corradetti, A., Seers, T.D., Billi, A. and Tavani, S., 2021.
Virtual Outcrops in a Pocket: The Smartphone as a Fully Equipped Photogrammetric Data Acquisition Tool. GSA Today, 31(9)
https://www.geosociety.org/GSA/Publications/GSA_Today/features/GSA/GSAToday/science/G506A/article.aspx

Related paper is:

Tavani, S., Corradetti, A., Granado, P., Snidero, M., Seers, T.D., and Mazzoli, S., 2019, 
Smartphone: An alternative to ground control points for orienting virtual outcrop models and assessing their quality: Geosphere, v. 15, p. 2043–2052,
https://doi.org/10.1130/GES02167.1

https://pubs.geoscienceworld.org/gsa/geosphere/article/15/6/2043/574968/Smartphone-An-alternative-to-ground-control-points

Yours,

Paul H.

Monday, 16 August 2021

Why don’t we see more meteorites after big asteroid belt collisions? 16AUG2021

Why don’t we see more meteorites after big asteroid belt collisions?

Why don’t we see more meteorites after big asteroid belt collisions?
Terrawatch Meteors, Kate Ravilious, The Guardian, August 3, 2021
https://www.theguardian.com/science/2021/aug/03/terrawatch-why-dont-we-seemore-meteorites-after-big-asteroid-belt-collisions

The paper is:

Terfelt, F. and Schmitz, B., 2021. Asteroid break-ups and meteorite delivery to Earth the past 500 million years. Proceedings of the National Academy of Sciences, 118(24) no. e2020977118.
https://www.pnas.org/content/118/24/e2020977118.short

Yours,

Paul H.

4.6 billion-year-old meteorite found in horseshoe footprint 16AUG2021

4.6 billion-year-old meteorite found in horseshoe footprint

4.6 billion-year-old meteorite found in horseshoe footprint
By Stephanie Pappas, Live Science
https://www.livescience.com/rare-carbonaceous-carbonate-meteorite-found.html

The meteorite is a rare carbonaceous chondrite

Yours,

Paul H.

Tuesday, 10 August 2021

A 4,565-My-old andesite from an extinct chondritic protoplanet 10AUG2021

A 4,565-My-old andesite from an extinct chondritic protoplanet

4.6-billion-year-old meteorite belongs to Earth’s long-lost baby cousin
By Mindy Weisberger, Live Science, March 8, 2021
A protoplanet in the early solar system spawned a unique type of meteorite
https://www.livescience.com/meteorite-asteroid-early-solar-system.html

Meteoritical Bulletin Database
Last update: 28 Mar 2021
Meteorite Bulletin 109
https://www.lpi.usra.edu/meteor/metbull.php?code=72475

Barrat, J.A., Chaussidon, M., Yamaguchi, A., Beck, P., Villeneuve, J., Byrne, D.J., Broadley, M.W. and Marty, B., 2021. 
A 4,565-My-old andesite from an extinct chondritic protoplanet. 
Proceedings of the National Academy of Sciences, 118(11).

Wednesday, 14 July 2021

Chicxulub impact tsunami megaripples in the subsurface of Louisiana 14JUL2021

Chicxulub impact tsunami megaripples in the subsurface of Louisiana

Giant tsunami from dino-killing asteroid impact revealed in fossilized ‘megaripples’
By Akila Raghavan, AAAS Science, Jul. 12, 2021
https://www.sciencemag.org/news/2021/07/giant-tsunami-dino-killing-asteroid-impact-revealed-fossilized-megaripples

The paper is:

Kinsland, G.L., Egedahl, K., Strong, M.A. and Ivy, R.,2021. 
Chicxulub impact tsunami megaripples in the subsurface of Louisiana: Imaged in petroleum industry
seismic data. Earth and Planetary Science Letters, 570, no.117063.
https://www.sciencedirect.com/science/article/abs/pii/S0012821X21003186

Yours,

Paul H.

Monday, 28 June 2021

Meteorites and impacts: research, cataloguing and geoethics 28JUN2021

Meteorites and impacts: research, cataloguing and geoethics

Martínez-Frías, J., Meteorites and impacts: research, cataloguing and geoethics.
Seminarios SEM 10:75–87. Deposito legal: CA-602-2004 / ISSN: 1698-5478
http://www.ehu.eus/sem/seminario_pdf/SeminSEMv10p75-87.pdf

Pratesi, G. and Franza, A., 2021. Mineralogical, petrological and planetological
heritage. The (Italian) story so far. Rendiconti Lincei. Scienze Fisiche e Naturali,
32(1), pp.95-116. Open access
https://link.springer.com/article/10.1007/s12210-020-00970-2

Yours,

Paul H.

Monday, 7 June 2021

Two new publications about the Hiawatha impact crater, Greenland 07JUN2021

Two new publications about the Hiawatha impact crater, Greenland

Gustafsson, J., 2020. Impactites from the Hiawatha crater, North-West Greenland. unpublished MS thesis, Department of Geological Sciences, Stockholm University, Sweden. open access
Abstract
https://www.diva-portal.org/smash/record.jsf?pid=diva2%3A1512393&dswid=2029

PDF file
https://www.diva-portal.org/smash/get/diva2:1512393/FULLTEXT01.pdf


Silber, E.A., Johnson, B.C., Bjonnes, E., MacGregor, J.A., Larsen, N.K. and Wiggins, S.E., 2021. 

Sunday, 30 May 2021

The Shunga Event: Paleoproterozoic petroleum deposits, a possible mass extinction, and Vredefort impact 30MAY2021

The Shunga Event: Paleoproterozoic petroleum deposits, a possible mass extinction, and Vredefort impact

The Shunga Event; did a Precambrian mass extinction give rise to an ancient supergiant oil field?
https://www.geological-digressions.com/the-shunga-event-did-a-precambrian-mass-extinction-give-rise-to-an-ancient-supergiant-oil-field/

Geological Digressions, Earth science resources, SCICOMM
https://www.geological-digressions.com

Ancient Earth, Precambrian geology, origin of life, atmosphere, oceans
https://www.geological-digressions.com/ancient-earth/

Yours,

Paul H.

Sunday, 23 May 2021

Extraterrestrial Plutonium Found On Ocean Floor 23MAY2021

Extraterrestrial Plutonium Found On Ocean Floor

Freshly Made Plutonium From Outer Space Found On Ocean Floor
By Nell Greengrocer, NPR, May 13, 2021
https://www.wrkf.org/2021-05-13/freshly-made-plutonium-from-outer-space-found-on-ocean-floor

Scientists Find Plutonium Made in Outer Space on Ocean Floor Research suggests the rare, heavy element may have been created by the collision of two neutron stars, Smithsonian Magazine
https://www.smithsonianmag.com/smart-news/scientists-find-plutonium-made-outer-space-deep-sea-crust-180977739/

The paper is:

Wallner, A., Froehlich, M.B., Hotchkis, M.A.C., Kinoshita, N., Paul, M., Martschini, M., Pavetich, S., Tims, S.G., Kivel, N., Schumann, D. and Honda, M., 2021. 
60Fe and 244Pu deposited on Earth constrain the r-process yields of recent nearby supernovae. 
Science, 372(6543), pp.742-745.
https://science.sciencemag.org/content/372/6543/742.abstract

Yours,

Paul H.

Friday, 21 May 2021

Dating Wolfe Creek Crater, Australia 21MAY2021

Dating Wolfe Creek Crater, Australia

Dating Craters: Wolfe Creek is younger Meteor Crater older, than previously thought
https://www.syfy.com/syfywire/dating-craters-wolfe-creek-is-younger-meteor-crater-older-than-previously-thought

Barrows, T.T., Magee, J., Miller, G. and Fifield, L.K., 2019.
The age of Wolfe Creek meteorite crater (Kandimalal),Western Australia. 
Meteoritics & Planetary Science, 54(11), pp.2686-2697.

Yours,

Paul H.

Saturday, 15 May 2021

Recent active volcanism on Mars 15MAY2021

Recent active volcanism on Mars

Bad Astronomy | Volcanism on Mars may still be active today
https://www.syfy.com/syfywire/more-evidence-that-mars-is-volcanically-active-right-now-today



Horvath, D.G., Moitra, P., Hamilton, C.W., Craddock, R.A. and Andrews-Hanna, J.C., 2021. 

Monday, 3 May 2021

An investigation of the Echo Cliff structure, Kansas 3MAY2021

An investigation of the Echo Cliff structure, Kansas

Lane, A.E., 2018. The Echo Cliff structure: identification and analysis of a possible Kansan impact structure. unpublished thesis, Kansas State University, Manhattan, Kansas.
https://krex.k-state.edu/dspace/handle/2097/38882
https://krex.k-state.edu/dspace/bitstream/handle/2097/38882/AdamLane2018.pdf

The abstract states:

"...variations in the topography of the Precambrian basement and
faulting from the Bolivar-Mansfield Tectonic Zone are responsible
for the geophysical anomalies..."

and

"Therefore, there is currently no evidence in support of the
claim that the Echo Cliff structure is an impact structure."

Yours,

Paul H.

Thursday, 29 April 2021

Wild 22-Million-Year Journey of a Meteorite 29APR2021

Wild 22-Million-Year Journey of a Meteorite

Astronomers Trace Wild 22-Million-Year Journey of a Meteorite That Crashed to Earth
https://www.sciencealert.com/astronomers-trace-22-million-year-journey-of-a-meteorite-that-crashed-to-earth

Motopi Pan
https://www.lpi.usra.edu/meteor/metbull.php?code=74065

The open access paper is:

Jenniskens, P., Gabadirwe, M., Yin, Q.Z., Proyer, A., Joses, O., Kohout, T., Franchi, F., Gibson, R.L.,
Kowalski, R., Christensen, E.J. and Gibbs, A.R.,
The impact and recovery of asteroid 2018 LA.
Meteoritics & Planetary Science.
https://onlinelibrary.wiley.com/doi/full/10.1111/maps.13653

Yours,

Paul H.

Titanium bubbles created by supernova 29APR2021

Titanium bubbles created by supernova

Titanium bubbles discovered in supernova could help solve mystery of exploding stars
By Ashley Strickland, CNN, April 27, 2021
https://www.cnn.com/2021/04/27/world/supernova-titanium-cassiopeia-a-scn/index.html

Chandra Detects Stable Isotope of Titanium in Cassiopeia A, Sci News, Apr 28, 2021
http://www.sci-news.com/astronomy/chandra-titanium-cassiopeia-a-09602.html

The paper is;

Sato, T., Maeda, K., Nagataki, S., Yoshida, T., Grefenstette, B., Williams, B.J., Umeda, H.,
Ono, M. and Hughes, J.P., 2021. 
High-entropy ejecta plumes in Cassiopeia A from neutrino- driven convection. 
Nature, 592(7855), pp.537-540.

Yours,

Paul H.

Sunday, 25 April 2021

Sutter’s Mill meteorite once contained carbon dioxide-rich water 25APR2021

Sutter’s Mill meteorite once contained carbon dioxide-rich water

Tsuchiyama, A., Miyake, A., Okuzumi, S., and others, 2021,
Discovery of primitive CO2-bearing fluid in an aqueously altered carbonaceous chondrite. Science Advances 21 Vol. 7, no. 17, eabg9707, DOI: 10.1126/sciadv.abg9707
https://advances.sciencemag.org/content/7/17/eabg9707

https://advances.sciencemag.org/content/7/17/eabg9707/tab-pdf

Sutter's Mill - https://www.lpi.usra.edu/meteor/metbull.php?code=55529

Yours,

Paul H.

Tuesday, 23 March 2021

Live Video of Iceland Eruption March 2021

Live Video of Iceland Eruption 2021

I know this is not meteorite related. Live video of an erupting volcano can just as fun.

Iceland Eruption Live Stream | Geldingadalur
Daily Iceland, March 22, 2021
https://www.youtube.com/watch?v=ApcVizUV0Xk

Helstu tíðindi: Gas mælist yfir hættumörkum
https://www.ruv.is/frett/2021/03/18/helstu-tidindi-gas-maelist-yfir-haettumorkum

Sjáðu hraunrennslið í Geldingadölum síðasta sólarhring
22.03.2021 - 16:29 Innlent · Geldingadalagos · Jarðhræringar á
Reykjanesskaga
https://www.ruv.is/frett/2021/03/22/sjadu-hraunrennslid-i-geldingadolum-sidasta-solarhring

Scientists Grill Hot Dogs Using Lava From Iceland Volcano
CBS Miami, Mar 22, 2021
https://www.youtube.com/watch?v=y6VHewvyH5o

Yours,

Paul H.

Friday, 12 March 2021

A fireball, a driveway and a priceless meteorite - Gloucestershire, UK

A fireball, a driveway and a priceless meteorite - Gloucestershire, UK
on TwitterA fireball, a driveway and a priceless meteorite

Jonathan Amos, BBC News, March 9, 2021
https://www.bbc.com/news/science-environment-56337876

Yours

Paul H.

Tuesday, 9 March 2021

Korea New Impact Crater reported

Korea New Impact Crater Reported

It is open access.

Lim, J., Hong, S.S., Han, M., Yi, S. and Kim, S.W., 2021.
First finding of impact cratering in the Korean Peninsula.
Gondwana Research, 91, pp.121-128.
https://www.sciencedirect.com/science/article/pii/S1342937X20303105

Stay safe,

Paul