nemesis21
noticing nice landscape pebbles
Member since August 2017
Posts: 88
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Post by nemesis21 on Sept 27, 2018 14:21:05 GMT -5
WARNING: I'm definitely not an expert so take what my guesses are with a grain of salt That aside, I'd guess it's more of a partial mammoth molar shape. I looked at this post [ link] and saw that certain types of mammoth resemble the shape pretty well toward the narrower portion of the tooth. Also I'd guess that the ridges may be more or less connected depending on wear/how old the animal is. Maybe this will help get you to the right place even if it's wrong
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nemesis21
noticing nice landscape pebbles
Member since August 2017
Posts: 88
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Post by nemesis21 on Jun 26, 2018 19:05:50 GMT -5
I always wanted to try growing mushrooms after watching this video but I haven't gotten around to it. Love Morels.
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nemesis21
noticing nice landscape pebbles
Member since August 2017
Posts: 88
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Post by nemesis21 on Jun 19, 2018 13:22:13 GMT -5
I don't think any climate scientist would argue with you about temperatures being warmer/colder than they are today in the distant past. Yes, those temperatures were very likely naturally occurring events(sorry Atlantis believers). However, the current rate of change is a troubling aspect if you consider how correlated these temperature spikes are with mass extinction events.
Even if you think we are not the cause of the CO2 increases or climatic variability, you should be worried about the consequences. If anything that graph should make you more worried about how much the temperature can change and what you might expect the consequences to be in a world that has an ever-increasing human population.
I would love for you to cite some sources on this. As far as I know, humans began using fire over 100,000 years ago and coal use wasn't utilized until ~1000 BCE and wasn't prevalent until the industrial revolution. Go ahead and stick your head in the sand if you like about climate change, but I would defer to someone who is trained in climate science to interpret data before you. If you don't think the climate is complicated you aren't doing it right.
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nemesis21
noticing nice landscape pebbles
Member since August 2017
Posts: 88
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Post by nemesis21 on Mar 25, 2018 8:49:14 GMT -5
I've always liked how ancient cultures utilized natural stone. Too bad we don't do it more today. There's not going to be much of our buildings left in a few thousand years except our plastic garbage. By the way, if you're into building with columnar basalt you should check out Nan Madol.
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nemesis21
noticing nice landscape pebbles
Member since August 2017
Posts: 88
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Post by nemesis21 on Mar 9, 2018 10:15:42 GMT -5
Here are a few interesting ones I have. An alien palm print? Agatized jawbreaker? Donald Trump in agate form? Or does the agate have too much hair for that?
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nemesis21
noticing nice landscape pebbles
Member since August 2017
Posts: 88
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Post by nemesis21 on Feb 18, 2018 14:20:43 GMT -5
11/12 look like stromatlitic jasper. I'd guess mary ellen, but I don't know for sure. 10 might be as well, but it's hard to tell from the pictures.
Edit: For clarity it might be better to space out the pictures with the number. It's hard to tell if you are putting the number before or after the picture.
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nemesis21
noticing nice landscape pebbles
Member since August 2017
Posts: 88
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Post by nemesis21 on Feb 17, 2018 19:18:23 GMT -5
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nemesis21
noticing nice landscape pebbles
Member since August 2017
Posts: 88
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Post by nemesis21 on Jan 14, 2018 16:19:51 GMT -5
These would have to be my coolest finds. Leaves are from South Central BC and the fern? or fish bone? is from the West side of the Rockies in Alberta. What puzzles me is the leaves fossil are on one slab with 4 inches in-between the front and back. Could this be two different time periods? I'm no expert, but it looks kinda like a palm leaf to me.
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nemesis21
noticing nice landscape pebbles
Member since August 2017
Posts: 88
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Odd LSA
Jan 13, 2018 16:47:21 GMT -5
Post by nemesis21 on Jan 13, 2018 16:47:21 GMT -5
Looks like fort banding to me. Sometimes the color difference is quite obscure or non-existent between bands. Plus it's covered in limonite.
If you get it wet/oiled it will probably look like more of a laker.
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nemesis21
noticing nice landscape pebbles
Member since August 2017
Posts: 88
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Post by nemesis21 on Jan 8, 2018 20:12:23 GMT -5
Saw this old version of a mouse trap that can hold multiple rodents and thought it was pretty cool. You could probably build something like this to scale and save yourself the trouble of drowning them all.
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nemesis21
noticing nice landscape pebbles
Member since August 2017
Posts: 88
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Post by nemesis21 on Jan 8, 2018 20:06:14 GMT -5
That banded piece is really cool!
Are those limestone cliffs you're searching in? It's kinda hard to tell from the picture.
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nemesis21
noticing nice landscape pebbles
Member since August 2017
Posts: 88
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Post by nemesis21 on Jan 2, 2018 23:36:09 GMT -5
I'm partial to stromatolites especially the really colorful mary ellen. I found this piece earlier today and it's quickly becoming a favorite. Too bad it's not bigger! I also found a really cool agatized coral in southern MN a few years ago that fluoresces under UV.
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nemesis21
noticing nice landscape pebbles
Member since August 2017
Posts: 88
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Post by nemesis21 on Jan 1, 2018 10:50:11 GMT -5
Have never found a "flowing" chert here before. They usually have very straight edges. Also, are not white. Interesting...... What do you mean by "flowing"? If you're talking about the polished side it's probably due to glacial/water activity. You could always try knapping a piece off to see what's inside .
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nemesis21
noticing nice landscape pebbles
Member since August 2017
Posts: 88
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Post by nemesis21 on Dec 31, 2017 17:14:46 GMT -5
Was down to -15 or -20 F here in Minnesota yesterday. Now it's a balmy -5 with a low near -11 tonight!
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nemesis21
noticing nice landscape pebbles
Member since August 2017
Posts: 88
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Post by nemesis21 on Dec 31, 2017 16:36:57 GMT -5
I think something might be lost in translation with "psoriasis". Maybe they mean scaly?
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nemesis21
noticing nice landscape pebbles
Member since August 2017
Posts: 88
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Post by nemesis21 on Dec 30, 2017 16:52:17 GMT -5
My guess is some kind of dolomite/dolostone.
Edit: Could be chert also.
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nemesis21
noticing nice landscape pebbles
Member since August 2017
Posts: 88
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Post by nemesis21 on Dec 29, 2017 19:53:54 GMT -5
Yea the middle one is definitely unfinished. I think it broke when knapping it out because there is a big chunk sticking out on the underside. The far right one probably broke when hitting something. The left one is complete as far as I can tell since all the sides are knapped/sharp. I think it may be a blade/point that broke at one point and was repurposed into a scraper or something. At least that's what I was told when I was out there.
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nemesis21
noticing nice landscape pebbles
Member since August 2017
Posts: 88
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Post by nemesis21 on Dec 29, 2017 17:11:07 GMT -5
I have no idea to what time period these date to, but I found them all on the ground walking around. The top 3 are from Wyoming and the bottom quartz one is from Minnesota.
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nemesis21
noticing nice landscape pebbles
Member since August 2017
Posts: 88
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Post by nemesis21 on Dec 29, 2017 16:54:28 GMT -5
Yea, some of those meteor knives are incredible. I think bob kramer makes some really awesome damascus meteor chef style knives (see below). Too bad they cost a small fortune. I think I saw 1 knife sell for like $31,000.......
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