World Record Specimen? |
Colorado Prospector - Gem and mineral prospecting and mining forums > Prospecting, Mineral Collecting and Treasure Hunting Forums > Gem and Mineral Specimen Finds or Processes  |
World Record Specimen? |
 Mar 6 2016, 01:16 PM
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 Rock Bar!  Group: Members Posts: 613 Joined: 16-October 08 From: Central Colorado Member No.: 6,813  |
There's been very few scientific studies published on slickensides. The term was first used used in England in the early 19th century to describe the polished, ribbed and fluted faces found in lead ore-bearing veins along a fault.The common slickenside is no thicker than the width of a hair and seldom exceeds the thickness of a playing card.
The greatest thickness of coating and deformed layering in research documents I can access is less than 5 mm. Here's photos of my find that is 3X thicker! This is indicative of a very high slip-rate and suggests a cataclysmic event happening right here in Colorado. I'd be interested in any information on similar slickensides. Thanks.
-------------------- Annual Dues Paying Member Since 2008
Tonko Mining Company "Some day this crater is going to be a greatly talked about place, and if the above credit is due, as is certainly the case, I would like to have it generally known for the sake of the children." Daniel Moreau Barringer 2/1/1912 in a letter about the Barringer Meteorite Crater, Arizona USA |
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 Mar 6 2016, 03:11 PM
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 Moderator Group: Members Posts: 4,459 Joined: 25-August 09 From: way on up thar Member No.: 6,983 |
Wow Johnny, I don't know if I should congratulate you or start preparing for doomsday.
-------------------- /l ,[____], l---L-OlllllllO- ()_) ()_)--o-)_) BLACK SANDS MATTER! Very Happy CP Lifetime Member CP CORE TEAM Referral Code CE213 |
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Mar 6 2016, 05:01 PM
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#3
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Rock Bar! Group: Members Posts: 613 Joined: 16-October 08 From: Central Colorado Member No.: 6,813 |
QUOTE (swizz @ Mar 6 2016, 02:11 PM)  Wow Johnny, I don't know if I should congratulate you or start preparing for doomsday. The specimen was collected from another meteorite impact crater that I recently discovered. I'm still working on the size and age of the structure but you're right...it is evidence of a doomsday event for sure! -------------------- Annual Dues Paying Member Since 2008
Tonko Mining Company "Some day this crater is going to be a greatly talked about place, and if the above credit is due, as is certainly the case, I would like to have it generally known for the sake of the children." Daniel Moreau Barringer 2/1/1912 in a letter about the Barringer Meteorite Crater, Arizona USA |
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Mar 7 2016, 12:38 PM
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 Rock Bar! Group: Members Posts: 637 Joined: 5-April 11 From: All of Colorado Member No.: 15,615 |
Very interesting Johnny,
Never heard of such a critter but it looks like another way used to de-sifer the past geological events. Hope you get that new impact well documented. Have a good one, Woody -------------------- Proud CP Lifetime Member
(currently working hard in the procurement department) |
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Mar 8 2016, 11:31 AM
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 Rock Bar! Group: Members Posts: 875 Joined: 25-July 14 From: Westminster, CO Member No.: 117,949 |
I learn something new everyday! Thanks for this!
-------------------- Lifetime Member
opera non verba "All courses of action are risky, so prudence is not in avoiding danger (it's impossible), but calculating risk and acting decisively. Make mistakes of ambition and not mistakes of sloth. Develop the strength to do bold things, not the strength to suffer." ~Niccolò Machiavelli Ref Code: EM448 |
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Mar 8 2016, 04:21 PM
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#6
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Rock Bar! Group: Members Posts: 613 Joined: 16-October 08 From: Central Colorado Member No.: 6,813 |
Here's a set of pics of the "best" slickenside I had ever collected...until I found the one at the new crater. It is easy to see that even an intense slickenside is usually very thin. Many times, folks won't even notice a slickenside feature while rockhounding. Since mineral deposits and slickesides are commonly found together, it is always a good idea to keep an eye out for them when prospecting.
-------------------- Annual Dues Paying Member Since 2008
Tonko Mining Company "Some day this crater is going to be a greatly talked about place, and if the above credit is due, as is certainly the case, I would like to have it generally known for the sake of the children." Daniel Moreau Barringer 2/1/1912 in a letter about the Barringer Meteorite Crater, Arizona USA |
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Mar 19 2016, 12:41 AM
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#7
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Rock Bar! Group: Members Posts: 613 Joined: 16-October 08 From: Central Colorado Member No.: 6,813 |
I've cut and polished a unique specimen recovered from the fallback breccia that exhibits the "world record" slickensides. The photos show what I believe to be a fragment of the meteorite that created the ancient crater.
Specimen View with scale
Polished Surface View
Broken Surface View
-------------------- Annual Dues Paying Member Since 2008
Tonko Mining Company "Some day this crater is going to be a greatly talked about place, and if the above credit is due, as is certainly the case, I would like to have it generally known for the sake of the children." Daniel Moreau Barringer 2/1/1912 in a letter about the Barringer Meteorite Crater, Arizona USA |
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Mar 24 2016, 11:55 PM
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#8
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Rock Bar! Group: Members Posts: 613 Joined: 16-October 08 From: Central Colorado Member No.: 6,813 |
Today, I split another sample of suspected meteorite from the impact structure. Here's the photo fresh from the diamond saw in natural light. This is a much less weathered specimen and has more eye appeal, in my opinion.
-------------------- Annual Dues Paying Member Since 2008
Tonko Mining Company "Some day this crater is going to be a greatly talked about place, and if the above credit is due, as is certainly the case, I would like to have it generally known for the sake of the children." Daniel Moreau Barringer 2/1/1912 in a letter about the Barringer Meteorite Crater, Arizona USA |
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Mar 25 2016, 05:50 PM
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#9
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Moderator Group: Members Posts: 4,459 Joined: 25-August 09 From: way on up thar Member No.: 6,983 |
Interesting... have you concluded it's meteorite?
-------------------- /l ,[____], l---L-OlllllllO- ()_) ()_)--o-)_) BLACK SANDS MATTER! Very Happy CP Lifetime Member CP CORE TEAM Referral Code CE213 |
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Mar 25 2016, 06:16 PM
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#10
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Rock Bar! Group: Members Posts: 613 Joined: 16-October 08 From: Central Colorado Member No.: 6,813 |
QUOTE (swizz @ Mar 25 2016, 06:50 PM) Interesting... have you concluded it's meteorite? I have  but the scientists I'm in contact with for classification are backlogged a year or more...
-------------------- Annual Dues Paying Member Since 2008
Tonko Mining Company "Some day this crater is going to be a greatly talked about place, and if the above credit is due, as is certainly the case, I would like to have it generally known for the sake of the children." Daniel Moreau Barringer 2/1/1912 in a letter about the Barringer Meteorite Crater, Arizona USA |
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Mar 26 2016, 08:19 AM
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#11
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 Master Mucker! Group: Admin Posts: 7,206 Joined: 7-October 03 From: Colorado Member No.: 4 |
That's a fantastic find Johnny!!
 Why does the cut look so rough though? What kind of blade are you using to slab them on the diamond saw if you don't mind me asking.
-------------------- Education is the key to the future,
and participation opens the door to opportunity. Discover your prospecting independence & success! ColoradoProspector.com Owner/Webmaster Core team member ♥  |
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Mar 26 2016, 10:48 AM
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#12
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Rock Bar! Group: Members Posts: 613 Joined: 16-October 08 From: Central Colorado Member No.: 6,813 |
QUOTE (Mrs.CP @ Mar 26 2016, 09:19 AM) That's a fantastic find Johnny!! Why does the cut look so rough though? What kind of blade are you using to slab them on the diamond saw if you don't mind me asking.Good Morning Mrs. CP, True story...I swear! Years ago my wife agreed to spend $75 our of our company budget to purchase a used diamond saw that was being advertised in the local paper. The nice lady that owned the saw had used it to "rough" material for many years before we took it over. Our vintage Star Diamond Industries Model 10c is still running on all original factory equipment including blade and belt! It has cut A LOT of meteor wrongs along with a good share of hard space rock. Man can you hear the difference in the blade singing when it gets hold of a real meteorite. Our old saw wobbles a bit when it eats through the chondrites but still gets the job done, eventually. A few hours of hand polishing selected specimens with wet/dry sandpaper and the rough saw marks disappear. I know there is a great need for me to upgrade my equipment but most of the company resources go to prospecting...travel, gas, food, claim maintenance fees, etc. Now that I've retired from my scientist/researcher position with the Colorado Department of Natural Resources, I have more time to follow-up on my projects but less disposable income to invest in other things like work saving devices. Have a great day. We've got snow over here.  Good time to break out the sandpaper  -------------------- Annual Dues Paying Member Since 2008
Tonko Mining Company "Some day this crater is going to be a greatly talked about place, and if the above credit is due, as is certainly the case, I would like to have it generally known for the sake of the children." Daniel Moreau Barringer 2/1/1912 in a letter about the Barringer Meteorite Crater, Arizona USA |
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