[meteorite-list] Article on Hypothesized Scottish Precambrian Impact Crater

[Paul via Meteorite-list]

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 Crtare 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
http://tinyurl.com/StacFadaImpact
http://tinyurl.com/StacFadaImpact002

Yours,

Paul H.
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[meteorite-list] Ad: ebay - NWA 10023 - New Plessitic Pallasite!

[Ruben Garcia via Meteorite-list]

Hi all,

I just listed another hundred or so meteorites on ebay. Among them are
small individuals of the new plessitic pallasite (NWA 10023) as well
as affordable Saint-Severin, Kainsaz, Udei Station and many other
specimens.

http://www.ebay.com/sch/mr-meteorite/m.html?item=321650824190=STRK%3AMESELX%3AIT=nc&_trksid=p2047675.l2562



-- 
Rock On!

Ruben Garcia
http://www.MrMeteorite.com
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Re: [meteorite-list] Annual Moon Impacts More Frequent Then Previously Estimated

[almitt2--- via Meteorite-list]

Hi Kelly,

Always appreciate your posts to the list! Thank you for sharing this resource.

--AL Mitterling

Quoting "Beatty, Kelly via Meteorite-list"
:


hi, Paul...

it's an interesting revelation that demonstrates the power of LRO's



camera. but some of the write-ups are not getting it right (e.g.

the
New Scientist story claims "A new count of the moon?s craters has 
turned up 33 per cent more than predicted." sheesh!)


if you want some context, including interviews with specialists 
beyond the press release, I recommend my S colleague Camille 
Carlisle's write-up here: https://is.gd/LxmxoZ



clear skies,
Kelly

**
J. Kelly Beatty
Senior Editor, Sky & Telescope
F+W, A Content and eCommerce Company

Sky & Telescope.com
617-864-7360 x22168
@NightSkyGuy


-Original Message-
From: Meteorite-list 
[mailto:meteorite-list-boun...@meteoritecentral.com] On Behalf Of 
Paul via Meteorite-list

Sent: Thursday, October 13, 2016 9:29 PM
To: Meteorite-list@meteoritecentral.com
Subject: [meteorite-list] 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.
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Re: [meteorite-list] BANMA (L5, S2) officially registered as witnessed fall

[karmaka via Meteorite-list]

No confusion about the coordinates! Sorry about this!
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[meteorite-list] BANMA (L5, S2) officially registered as witnessed fall

[karmaka via Meteorite-list]

The meteorite which fell between BANMA (班玛) and Mǎn Zhǎng Xiāng (满掌乡), in Banma 
County (班玛县), Golog Tibetan Autonomous prefecture, Qinghai province in China on 
24 August 2016 at about 21:00 local time is now officially registered in the 
Meteoritical Bulletin Database as BANMA.
 
http://www.lpi.usra.edu/meteor/metbull.php?code=64021
 
Still the exact fall location remains confusing.
 
Both 33°15'11"N, 100°27'54"E AND 33°15.18’N, 100°27.9’E  are mentioned in the 
writeup.

Could anyone clarify the exact fall location? Thank you!

Best regards

Martin
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[meteorite-list] Meteorite Picture of the Day

[Paul Swartz via Meteorite-list]

Today's Meteorite Picture of the Day: Seymchan

Contributed by: Bernd Pauli

http://www.tucsonmeteorites.com/mpodmain.asp?DD=10/15/2016
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