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How to ContributeAdding / correcting localities
28th Dec 2011 17:04 UTCJean-Yves Lamoureux
My mistake ... No action needed !
20th Jan 2012 07:26 UTCAnonymous User
20th Jan 2012 07:34 UTCRock Currier Expert
20th Jan 2012 14:27 UTCDavid Von Bargen Manager
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24th Jan 2012 03:35 UTCAnonymous User
24th Jan 2012 03:47 UTCDebbie Woolf Manager
24th Jan 2012 04:24 UTCAlfredo Petrov Manager
24th Jan 2012 19:53 UTCDon Saathoff Expert
Welcome aboard!!!
30th Jan 2012 12:32 UTCNorman King 🌟 Expert
First I documented that the Deadwood Formation is rife with glauconitic strata. (Incidentally, it also contains metasomatized dolostone beds rich in gold and other goodies mined in the Deadwood and Lead areas.) The locality that came with the specimen lists Brownsville, Lawrence Co., South Dakota. Well, Brownsville is a ghost town today, but there is a convenience store there, along US385 several miles south of Deadwood. This precise locality is in an outcrop area of Precambrian crystalline rocks–not where you might expect to find glauconite. Using a combination of topographic maps and a map showing the elevation of the Precambrian surface, I was able to determine that the contact between crystalline rocks and the Cambrian Deadwood Formation winds its way across the area all around the site of Brownsville, so, although you have to get off the main drag by a few miles, this is ripe territory for finding glauconite.
I thought the locality page could use those two bits of information–the reference to glauconite in the Deadwood Formation, and the geological map showing the height of the Precambrian surface (that's basically the height of the Precambrian-Deadwood contact, to show that it intersects the surface in the area). First, I input the source for lithological/mineralogical verification, published in 1909. When I hit to add the map citation (that might be a more credible one, published in 2010), the locality page was already done with me, the glauconite was already there, and it seemed to be saying, “What do you think you’re trying to do, you idiot!”
But I’m happy–my mineral is added, and I am vindicated. So, is Mindat happy with that? (Really?)
10th Jan 2013 22:36 UTCPatrick Haynes (2) Expert
The National Dividend Mine in the Tomichi (Creek) District, Gunnison Co., CO.
Thanks
10th Jan 2013 23:34 UTCDavid Von Bargen Manager
You go to the Tomichi (Creek) District, page http://www.mindat.org/loc-49905.html
On the edit dropdown menu (rightmost button)
3rd option is add sublocality (click it)
see:
http://manual.mindat.org/index.php/Locality_Editor
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