Re: [meteorite-list] URGENT - This is Very Important

In [meteorite-list] [meteorite-list} URGENT at:
http://six.pairlist.net/pipermail/meteorite-list/2011-December/081920.html
Michael Blood wrote


"Greetings all, 
Today your congressmen and women are debating a bill 
To CENSOR the internet! 
No, not about "kitty porn" or even about bomb making.... 
It is about corporate lobbying $. The want to censor anything 
That may not benefit their ability to make MORE MONEY. 
Please help to stop our country from becoming totally 
BY BIG BUSINESS FOR BIG BUSINESS instead of by the 
People, for the people! 
Democracy ONLY works if THE PEOPLE take an active Role. 
Please read below and, if you are a US citizen SIGN THE 
PETITION ! This most definitely effects the meteorite 
community."


....lengthy text deleted....


" This week there will be a historic filibuster of the Internet
Censorship Act where the names of every person that signs 
a petition against Internet censorship will be read. I added 
my name. Please add yours too. 


http://pol.moveon.org/nointernetcensorship/?r_by=-9483161-2FGPQSx&rc=pac_nointernetcensorship_letter.email.g0 "


A shorter URL for the above petition is http://tinyurl.com/SOPAPROTECTIP


The numerous problems with the SOPA and PROTECT IP
legislation is discussed in detail in "Congress considers 
anti-piracy bills that could cripple Internet industries" by
Alex Howard, O'Reilly Radar, Novmber 22, 2011.
http://radar.oreilly.com/2011/11/sopa-protectip.html


This is a very important issue as it will impact eBay, Youtube,
and any web site with user generated content that meteorite
people use to communicate with and educate each other and 
the public in general.


Other petitions are:


B. Stop the E-PARASITE Act
https://wwws.whitehouse.gov/petitions/!/petition/stop-e-parasite-act/SWBYXX55


C. US: Save the Internet
http://www.avaaz.org/en/save_the_internet_us/


Yours,


Paul H.

Meteorite Hunters Prepare to Scour Cottage Country (Canada)

Meteorite Hunters Prepare to Scour Cottage Country (Ontario, Canada)

Meteorite hunters prepare to scour cottage country 
by Carola Vyhnak, The Star, Toronto, Dec 17, 2011
http://www.thestar.com/news/article/1103757--meteorite-hunters-prepare-to-scour-cottage-country

Meteor crashes near Selwyn by Kennedy Gordan
Peterborough Examiner, Dec 15, 2011
http://www.thepeterboroughexaminer.com/ArticleDisplay.aspx?e=3404777

Yours,

Paul H.

Study shows how impact craters may form

Study shows how impact craters may form
http://dalje.com/en-world/study-shows-how-impact-craters-may-form/390016

Study shows how impact craters may form. Science News.
http://www.upi.com/Science_News/2011/10/20/Study-shows-how-impact-craters-may-form/UPI-26051319150854/#ixzz1cgD4itIS

Crater shapes, UPI
http://www.upi.com/story/image/fs/UPI-26051319150854/13191492262400/

F. Pacheco- Vazquez and J. C. Ruiz- Suarez, 2011, Impact 
craters in granular media: Grains against grains. Physical 
Reviews Letters. vol. 107, no. 218001, 5 pp
http://prl.aps.org/abstract/PRL/v107/i21/e218001

Happy Holidays,

Paul H.

Help with new "Holocene" crater – Additional Note

In the post Help with new "Holocene" crater, at
http://six.pairlist.net/pipermail/meteorite-list/2011-December/081906.html
the crater, which I discussed is the Corossol crater 
(50°3’N, 66°23’W) just offshore of the Sept Iles 
harbour, Gulf of St Lawrence, Canada. It is described in

Higgins, M.D., Lajeunesse, P., St-Onge, G., Locat, J., 
Duchesne, M., Ortiz, J., Sanfaçon, R., 2011. Bathymetric 
and Petrological Evidence for a Young (Pleistocene?) 
4-km Diameter Impact Crater in the Gulf of Saint 
Lawrence, Canada, 42nd Lunar and Planetary 
Science Conference, Houston, Texas.
http://www.lpi.usra.edu/meetings/lpsc2011/pdf/1504.pdf

Yours,

Paul H.

Help with new "Holocene" crater

In “Help with new Holocene crater, please” at
http://six.pairlist.net/pipermail/meteorite-list/2011-December/081869.html
Ed asked,

"The following structure has been proposed as a crater from 
the Holocene Start Impacts:

http://www.lpi.usra.edu/meetings/lpsc2011/pdf/1504.pdf

I do not play a geologist on television, nor am I one in real life, 
but if the "floor" of this crater dates from 10,900 BCE, then 
that would be the crater floor, and not infill sediments, and 
thus the impact itself would have had to have been well after 
10,900 BCE?"

The article stated,

"The minimum age was established using data from 
a ~7 metre core taken in the central trough, which 
almost reached the basement, as defined by seismic 
data. Calibrated 14C ages of shells in the sediments can 
be extrapolated to give an estimate of the age of the 
base of the sedimentary sequence of ~12,900 cal BP, 
if no hiatus or older sediments were preserved 
between the base of the core and the bedrock. This is 
taken to be the youngest possible age of the impact."

The "floor" of the crater was not dated to ~12,900 cal BP.
It is estimated age of the oldest sediments that covers the
crater that dates to that period. This age only represents 
the latest period of sedimentation occurred in the area. 
Without addition information, it is entirely possible that 
either older sediments existed and have been eroded; 
there was a period of nondeposition before the accumulation
of the sediments covering it; or a combination of both.
All that can be said is the crater is older than ~12,900 
cal BP and younger than Ordovician. The morphology of 
this crater looks likes it has been significantly modified 
by erosion, which suggests that parts of the crater and 
possibly older sediments have been removed by erosion.

Thie ~12,900 cal BP date corresponds to the point in time
that the deglaciation of this part of Canada occurred. This 
would have been the when the ice sheet that covered and 
scoured this region melted back to expose the bottom of
the Gulf of St. Lawrence this part of the Canada. My 
interpretation of this date is that it represents the point
in time when the Laurentide Ice Sheet melted back 
enough to locally expose the bottom of the Gulf of St. 
Lawrence and first allow sediments to accumulate on the
eroded and scoured surface of this crater. Prior to that
time, it was likely covered and scoured by Laurentide 
Ice Sheet. Thus, this crater likely predates the last 
glacial maximum by a unknown period of time much 
like the Charity Shoals crater. From what I can see, this
is definitely not a “Holocene” crater and certainly 
predates the Younger Dryas by a significant period of 
time.

Best wishes,

Paul H.

SW Auzzie hole in the ground

“in “SW Auzzie hole in the ground” at:
http://six.pairlist.net/pipermail/meteorite-list/2011-December/081755.html
Mike wrote:

“Came across this Dec. 3, 2011 posting.

http://www.youtube.com/watch?v=dYjpfYyH2wo

Would seem fantastical for it to actually be an 
impact crater within a dried up stock watering 
pond. . . .

Anyone on the list in that part of the world?”

The largest discontinuous ring is likely the rim of a 
stock pond because of its location in a dry valley 
and the road that connects directly to it. The circular
features within the rim of the stock pond look like 
“bathtub rings” that represent the former “shorelines” 
/ extents of the pond that formed as the pond dried up.

The coordinates for this feature, which is about
45 meters in diameter, are:

1. Northing 6,313,739, Easting 553,490
UTM Zone 50

2. latitude: 33 degrees 18’ 51” South
longitude: 117 degrees 34’ 29” East

It is in Lot 3286 Ballaying Road, 
Ballaying, West Australia, Australia

The experts in local geology are:

Geological Survey of Western Australia
Department of Mines and Petroleum
Mineral House, 100 Plain Street
East Perth, Western Australia 6004

http://en.wikipedia.org/wiki/Geological_Survey_of_Western_Australia

Best wishes,

Paul H.

Annual Antarctica Meteorite Search

1. At the bottom of the world, a controversial 
search for cosmic leftovers, The Washington
Post, December 4, 2011.
http://www.washingtonpost.com/national/health-science/at-the-bottom-of-the-world-a-controversial-search-for-cosmic-leftovers/2011/12/02/gIQAUU8hTO_story.html

2. Antarctica Shines as Icy Bastion of Space Science 
by Charles Q. Choi, SPACE.com
http://www.space.com/13881-antarctic-astronomy-south-pole-telescopes-universe.html

“Astronomy in Antarctica will soon experience 
a centennial of its own — the very first meteorite 
discovered in the Antarctic, the Adelie Land 
Meteorite, or ALM, was found on Dec. 5, 1912.”

and 3. Space & Antarctica special: Meteorite hunters 
back on the ice - Don Pettit back to space. Space
Explorers Web, December 6, 2011.
http://explorersweb.com/space/news.php?id=20526

Happy Holidays, 

Paul

Who to contact if an impact crater has been found?

Bob Loeffler wrote:

“Someone contacted me about finding a meteorite impact 
crater and wants to know who to contact to get it verified 
and then get credited for his find. He didn’t say if he found 
any meteorites around/in it.  Any ideas of who he should 
contact?  He said it’s in Colorado.’

In addition to the Denver Museum of Nature and Science,
he can also contact the Colorado Geological Survey at:

http://geosurvey.state.co.us/about/Pages/ContactUs.aspx
http://geosurvey.state.co.us/about/Pages/StaffDirectory.aspx

The local state geologists are well qualified for providing
opinions about potential meteorite impact craters. One of
their (geologic) mapping geologists would be the best 
person to contact.

Best wishes,

Paul H.

Dark days of the Triassic: Extraterrestrial Impact or Volcanic Eruption?

An online article in the new issue of Nature discusses 
whether either an extraterrestrial impact or volcanic
eruption caused mass extinctions at the end of the 
Triasssic about 200 million years ago. The article is:


Smith, Roff, 2011, Dark days of the Triassic: Lost world. 
Nature. vol. 479, pp. 287-289. DOI: doi:10.1038/479287a 
http://www.nature.com/news/dark-days-of-the-triassic-lost-world-1.9375  


"Did a giant impact 200 million years ago trigger a 
mass extinction and pave the way for the dinosaurs?"


Free pdf version of the article at:
http://www.nature.com/polopoly_fs/1.9375!/import/pdf/479287a.pdf


Yours,


Paul H.

Online PDF File of Henbury Impact Craters Publication and Map

One of the USGS publications lacking an online PDF  file at 
the USGS Publication warehouse at http://pubs.er.usgs.gov/ is

Milto, D. J., 1968, Structural geology of the Henbury meteorite 
craters, Northern Territory, Australia. Professional Paper 
no. 599-C, United States Geological Survey, Reston, Virginia.

However, a PDF file of this publication and its accompanying 
map can be found at:

http://www.scribd.com/doc/73594449
http://www.scribd.com/doc/73594449/Henbury-Meteorite-Craters-Australia-USGS

http://www.scribd.com/doc/73593979
http://www.scribd.com/doc/73593979/Henbury-Meteorite-Craters-Australia-Map

Yours,

Paul H.

Online PDF files of USGS Publications, i.e. Jeptha Knob, Sierra Madera, Etc.

Dear Friends,

Free PDF and other files of United States Geological Survey 
can found online and downloaded from the “USGS Publications 
Warehouse” at: 

http://pubs.er.usgs.gov/

Examples of the USGS publications with PDF files that can be 
downloaded from this site are:

Cressman, E. R., 1981, Surface geology of the Jeptha Knob 
cryptoexplosion structure, Shelby County, Kentucky.
Professional Paper no. 1151-B. United States Geological
Survey, Reston, Virginia. 16 pp.

PDF file at http://pubs.usgs.gov/pp/1151b/report.pdf
Plate 1 at http://pubs.usgs.gov/pp/1151b/plate-1.pdf
http://ngmdb.usgs.gov/Prodesc/proddesc_4735.htm

Wilshire, H. G., T. W. Offield, K. A. Howard, and D. Cummings,
1972, Geology of the Sierra Madera cryptoexplosion structure, 
Pecos County, Texas. Professional Paper no. 599-H. United 
States Geological Survey, Reston, Virginia. 41 pp.

PDF file at http://pubs.usgs.gov/pp/0599h/report.pdf
Plate 1 at http://pubs.usgs.gov/pp/0599h/plate-1.pdf
Plate 2 at http://pubs.usgs.gov/pp/0599h/plate-2.pdf
Plate 3 at http://pubs.usgs.gov/pp/0599h/plate-3.pdf
Plate 4 at http://pubs.usgs.gov/pp/0599h/plate-4.pdf

Geologic maps can be found in the National Geologic
Map Database at:

http://ngmdb.usgs.gov/ngmdb/ngmdb_home.html
http://ngmdb.usgs.gov/ngmdb/ngm_catalog.ora.html
http://ngmdb.usgs.gov/ngmdb/ngm_quicksearch.html

Yours,

Paul H.

Manmade Objects Found in Weird Places While Meteorite Hunting

Dear Friends,

As part of a short article, possibly paper, I am 
collecting accounts of out-of-place metal and other 
manmade objects that have been found in the middle 
of nowhere while meteorite hunting. I am looking
for examples of manmade objects that have been found 
in the mountains and on the dry lakes of the
southwestern United States, outback of Australia, 
or similar areas far from roads and inhabited areas. 
The article / paper needs accounts, which can be 
cited as personal communications, of manmade objects 
that have been found in places far from where they 
normally would be expected to be found. They are 
to be used as examples of how manmade objects get 
scattered all over the landscape often in the most
unexpected places in a geoarchaeology article / paper.

If possible, I would prefer separate emails, in addition
to what you post to this list. Digital pictures of such
objects that I might use in publications would be 
extremely useful.

I would be especially interested in accounts and pictures 
of spark plugs and other automobile parts that have been 
in either weird, unexpected, of out of the way places well
away from either roads or inhabited areas.

In return for such accounts, I am willing to do what
I can answer questions about geology that a person 
might have and find information or publications for 
which you are looking.

Best wishes,

Paul

Paul V. Heinrich
Louisiana Geological Survey
3079 Energy, Coast, and
      Environment Building
Louisiana State University
Baton Rouge, LA 70803