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Post by oregon on May 23, 2022 14:52:50 GMT -5
Thanks for the update Dave! I've got a couple places I hound that I know pretty well that don't have cell service...but I won't be going out there for awhile. When I do, I'm going to try the other one's out to see how they do. If you find something you end up liking, please let me know. As we started this discussion, I've been on the 'net a bit and Google Maps seems to be at the top of the list for stuff like this (offline maps). If you end up going the Onx route (they do have a free trial if I recall), I'd love to see your feedback. You can Check out Avenza as well. I think they patented putting Location data into pdf's, which has unfortunately stymied the competition. Still the free version isn't bad, works without cell service, lets you have three maps currently active (I store the others elsewhere on my phone, load them when needed) there are lots of free maps available from the store (all of the USGS quads etc), and lots of governmental agencies publish free geo-referenced pdfs as well that work with this. (you do need some kind of connection to download maps) Offline satellite imagery is a bit tougher.
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Post by oregon on May 21, 2022 23:21:40 GMT -5
So, since i'm back in town until tomorrow, my dad and I decided it would be a smart idea to go explore all of the rimrock where the Bat Cave jasper was found. We were hoping to find some new deposits or unfound material, but unfortunately fell short. Making the long steep hike to the base, here is the beginning of the rimrock looking north to where the bat cave was found. No more gate across the road? That seems like an ongoing battle at that site...
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Post by oregon on May 17, 2022 14:34:56 GMT -5
I see your point oregon . Good catch. The Institution for Creation Research article is highly generalized and void of many points found in the much more detailed Nature Paper. I was able to interpret the Creation Research article, lol the Nature paper quickly exceeded my educational limits. I would be very interested in how the omissions in the creation article affect the conclusion of this subject in layman's terms. I think the Nature Paper is saying that this particular animal has been known to have communal outhouses and that this behavior is not necessarily related to being corralled by a flooding situation.
Yeah, This happens a lot. Referencing a peer reviewed scientific article to lend credence to entire speculation, unrelated conclusions. If it's on the internet is must be true. The Creation Research hypotheses are a load of dino crap ihmo. Nothing personal, I'm sure you can appreciate.
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Post by oregon on May 17, 2022 11:45:51 GMT -5
I found a coprolite deposition scenario that may interest you Randy. It suggests that a group of dinosaurs of all ages were corralled by high water on top of some hills and did their business there being surrounded by rising water(suggesting the Biblical flood or a flood). They were making deposits at rates of up to 80 turds per square yard as if tightly packed together (and perhaps in an accelerated rate fearing their pending doom of being drowned !). In Argentina silicification is so rampant due to the vast volcanic ash fields. The deposit of feces was then silicified in place with their flat bottoms pointing down suggesting their original deposit placement location and deposit patterns. hmmm. There are many new scientist that are finding merit in the Biblical flood. This article is one of many other similar subjects in a video catalog. www.icr.org/article/digging-into-fossil-outhouse/A PS: "The Chañares Formation also left another surprise. Not only did this rock layer contain concentrated areas of fossil dung and the bones of large herbivores, but it also held the remains of a fossil ray-finned fish and crocodile-like reptiles." Could it be the crocodiles were feeding on the drowning dinosaurs ? Could have been a yum-yum moment for those denisons...Just like rising lakes attract fish feeding on fresh morsels as the water rises into dryer land.
Interesting read of the Original paper, not sure I'm on board with the "Institute for Creation Research" interpretation.
Abstract
Defecation in communal latrines is a common behaviour of extant mammals widely distributed among megaherbivores. This behaviour has key social functions with important biological and ecological implications. Herbivore communal latrines are only documented among mammals and their fossil record is exceptionally restricted to the late Cenozoic. Here we report the discovery of several massive coprolite associations in the Middle-Late Triassic of the Chañares Formation, Argentina, which represent fossil communal latrines based on a high areal density, small areal extension and taphonomic attributes. Several lines of evidence (size, morphology, abundance and coprofabrics) and their association with kannemeyeriiform dicynodonts indicate that these large synapsids produced the communal latrines and had a gregarious behaviour comparable to that of extant megaherbivores. This is the first evidence of megaherbivore communal latrines in non-mammal vertebrates, indicating that this mammal-type behaviour was present in distant relatives of mammals and predates its previous oldest record by 220 Mya.
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Post by oregon on Apr 25, 2022 16:45:05 GMT -5
take it somewhere to have a left handed thread put on the end, best option, gives you future options. or if you can (Assuming the end is 3/4..) :
Sections of 1" pvc cut to length to sandwich everything together.
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Post by oregon on Apr 21, 2022 13:44:14 GMT -5
"Pelletized" poop - reminds me of all the deer poop fertilizing my lawn! The outer layer certainly looks like a conglomeration of pellets, and you can see at least a couple layers that have the 'pellets' individually agatized.
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Post by oregon on Apr 8, 2022 9:30:59 GMT -5
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Post by oregon on Apr 8, 2022 6:15:54 GMT -5
Little better than the stock 2" opening .
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Post by oregon on Apr 5, 2022 14:39:44 GMT -5
It reminds me I need to find better petrified wood to work! LOL Okay, so here's my question. When cutting the poop, why is it always cross-sections that are showing up? Why isn't there a lengthwise section of limb that shows up in the cut? Good question. I actually do find them but they are much less obvious to identify, even to the point of it just being speculation as to what they are. I'm also thinking sections are probably usually pretty short - think of a horse eating carrots.... Really here because I was just clearing off the saw...
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Post by oregon on Apr 1, 2022 23:30:01 GMT -5
- Its a freaking 24" saw. That's midlife crisis large. Sure I have a couple of stones that could use that size, but am I really going to get value out of that? I wanted to make sure I wasnt restricted, but is it overkill?
- I feel like I don't have the experience to warrant such a significant saw. I've watched my stones get cut in the club shop, but I've never personally operated one. I am comfortable with tools, but I feel like an imposter.
I want to do lapidary work as art and I love geology. It has been my outlet in a very difficult time in my life. I'm glad to have a saw (when it gets here in 6-8w) that I can use and pass down. I'm glad I can finally start cutting some rocks and making cabs. And if you're up for it - I guarantee I will be bringing questions to this forum. Big new shiny things are attractive, but if I were to advise someone with the wee bit of info you gave, I'd say 18" would be a better fit.
-Not everyone can fit a 24, 18" are much easier to sell/ pass on. The maintenance, cost of operation etc are significantly less. I always try to become scarce when the 24" at the shop needs a cleanout, one of the worst jobs in the world imho. You'll generate quite a bit more rock sludge as the kerf of a 24" blade is close to double that of an 18? Rocks that are large enough to need a 24" saw are often a pain in the back.
Really, like most things, boils down to what you want to do. I'd venture that the bulk of slabbing is done on saws smaller than 24 " (wo any evidence to back that up) But if you want to make lots of bookends or large projects, good choice. For the price, could you actually get a 10-12" slabber and the 18"? There are lots of small things that are very enjoyable to cut just for the geologist's sake When I'm walking by the garage in the summer I find I'm much more apt to chuck something from my bins in the smaller saw, less work or quicker cuts, not sure.
If you have access to a shop, talk to some other people, get input etc.
2c
being the weekend etc, I bet you can still change things if you wish.
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Post by oregon on Mar 31, 2022 23:58:11 GMT -5
when you have your UV light out, you have to be careful what you shine it at... Coprolite innards seem to fluoresce well. Strong Orange colors from the innards, and some with a pale green/white. 365nm
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Post by oregon on Mar 31, 2022 21:34:19 GMT -5
Uranium Mineralization of Fossil Wood
Sounds like some of the opal from Virgin Valley fits the bill, but This really doesn't look/feel opal to me. No radioactivity...
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Post by oregon on Mar 31, 2022 12:02:18 GMT -5
As there's no discernible radioactivity, I don't think there's any Uranium involved, Guessing maybe a Mn compound, sorta like old glass bottles?
It's nice agatized wood. Doesn't seem to be any opal or calcite. It'll make lovely tumbles to shine a UV light at.
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Post by oregon on Mar 30, 2022 22:48:36 GMT -5
Utah Petrified wood makes me think one must be getting close to Arizona. Shining my UV flashlight at the bucket was quite a surprise. There are some bright green and orange fluorescences. I borrowed an analytic Geiger counter thinking Utah and Uranium... alas, there is no appreciable radioactivity above normal background. Anyone know what minerals, components might be responsible for the fluorescence?
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Post by oregon on Mar 28, 2022 11:03:14 GMT -5
jamesp Awesome point. Certainly a lifetime find. So the Tundra got replaced by a FJ Cruiser?!
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Post by oregon on Mar 28, 2022 10:43:01 GMT -5
When you're typing your thread out (or a reply) look at the bottom of the box you're typing your post in. There's a "BBCode" tab down on the bottom left - next to the "Preview" tab which you would be in regularly. Click on the BBCode tab - look for your image address which will something like this: img style="max-width:100%;" src="https://res.cloudinary.com/drqxosbjp/image/upload/v1648422656/u1lwbg4on6yr4ijvqd5d.jpg" alt="" Where it says max-width:100%, try changing that percentage to 200% and see if that will work to increase your picture size. It works when I want to downsize from 100% down to 60%. img width="90%" src="https://res.cloudinary.com/drqxosbjp/image/upload/v1648422656/u1lwbg4on6yr4ijvqd5d.jpg" alt="rth rocks" Will do it, 80 or 90% looks better imho than 100%, you can also add a center="true" if you're there and worry about aesthetics . Always wondered why the default is only 50% or such... see below. - A box of motor oil?!.. sry I'm not responsible for the subject material. fyi Tommy
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Post by oregon on Mar 27, 2022 16:15:16 GMT -5
Randy directed some Utah coprolites my way, I hear he has too many in his yard No interpretation needed, just a pretty picture, bit of clear agate, red jasper, & small dendrites... getting to be as addictive to cut as thundereggs.
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Post by oregon on Mar 12, 2022 12:50:15 GMT -5
Fiesta ware, or Uranium Glass, which also just happened to show up with my UV Flashlight the other day edit: - I *think* it's Manganese in the old bottles, Uranium glass tends to have a green cast under normal light as well. These also show no radioactivity. I'd be happy to be corrected.
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Post by oregon on Mar 2, 2022 19:50:50 GMT -5
What a gorgeous area and a unique landscape (to me anyway!). Another reason to visit the area.
Are those some type of birch tree?
Aspen, actually interesting Basque history carved into lots of the older trunks, think there was a collection done a few years ago of the 'arborgraphs'. Was a big sheep herding area I believe. I don't have pics from the escarpment, the eastern side is actually more impressive, the snow fall kept us from venturing to the rim that time. It's a massive fault block, so approaching from the west doesn't look like any dramatic scenery, but as you climb, you see these huge glaciated "U" shaped valleys. Over the rim, it drops several thousand feet dramatically. I think the summit is ~9700', probably the highest place you can take a vehicle in Oregon. Nice gallery here steensrimrun.net/
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Post by oregon on Mar 2, 2022 17:20:04 GMT -5
Fun spot, needs a few eye level pics... These were on the west side a few fall's ago.. haven't been on the east side for a bit... google album here ,
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