metalsmith
Cave Dweller
Member since October 2012
Posts: 1,537
|
Post by metalsmith on May 24, 2017 12:35:53 GMT -5
A huge thanks to my side-kick in the photo ... his levels of fitness put me in the shade and he refused to leave me even when there was a rather attractive alternative group he might have joined - for safety on the mountain of course!
|
|
metalsmith
Cave Dweller
Member since October 2012
Posts: 1,537
|
Post by metalsmith on May 24, 2017 12:31:41 GMT -5
Fantastic! Was it a road or trail run? Much of it on the fell side, but it does take in Ingleborough... Strictly speaking it is a mountain marathon and there are places where there are sheep trails; it crosses private land (with permission) and sometimes little or no paths to speak of; plenty of reasonable footpath - some flagged for erosion management; some rock covered ankle-breaker trail and about 300 yds of road. Some general pictures of Ingleborough hereThis is the steep bit (but not the really steep bit). I've never run so fast down here as we did on saturday. It was quite entertaining given the number of walkers on the hill. I would dare to say that it is the first time I've properly opened up and run since my accident in September 2013... (not my image)
|
|
metalsmith
Cave Dweller
Member since October 2012
Posts: 1,537
|
Post by metalsmith on May 24, 2017 1:04:32 GMT -5
Looks like you gave 100% plus! You finished - which itself shows perseverance toward your goals. Good at you!!! Also thank you for being the type of person who helps others. We need more of you! That's kind of you to say - thank you!
|
|
metalsmith
Cave Dweller
Member since October 2012
Posts: 1,537
|
Post by metalsmith on May 23, 2017 15:24:02 GMT -5
|
|
metalsmith
Cave Dweller
Member since October 2012
Posts: 1,537
|
Post by metalsmith on May 23, 2017 15:17:32 GMT -5
Manchester centre is just 45 miles from me.
There are 233,000 Muslims in Greater Manchester - 5% of the 2,550,000 population.
One bad one ...
|
|
metalsmith
Cave Dweller
Member since October 2012
Posts: 1,537
|
Post by metalsmith on May 23, 2017 15:02:30 GMT -5
Well no one challenged with a 'pic or it didn't happen' but here's the pic anyway. I'm in the fluoro. top staged with the Cave Rescue landy outside their HQ.
|
|
metalsmith
Cave Dweller
Member since October 2012
Posts: 1,537
|
Post by metalsmith on May 23, 2017 13:55:52 GMT -5
prescription. Special glasses for night driving that correct for astigmatism and cataracts. Also no line trifocals. Safety glasses is what I would prefer, due to all the farm work I do here. Very windy area and sometimes hay I am throwing to horses is blown back in my face. CAnnot begin to imagine what cost of surgery would be. Glasses would have very inexpensive frames, say less than $50.00. It os all in the lenses. Thanks for asking. Wow .. best wishes
|
|
metalsmith
Cave Dweller
Member since October 2012
Posts: 1,537
|
Post by metalsmith on May 23, 2017 13:30:55 GMT -5
Oolites ... coolites! The third rock is wonderful: great potential to show those off. What makes them oolites and not poppies? Pure curiosity. Cheers. My understanding is that no one knows how poppies form (or fill me in if you do). Oolites have a known phenomenon (think gobstopper) - supersaturated solutions, with concentric deposition happening upon a seed grain on a diurnal basis. There's another thread on oolites somewhere: they cover a huge swath of the USA and also (different swath) England. Think how many millions upon millions of tiny little spheres must have been rolling around at one time or another. Totally amazing!
|
|
metalsmith
Cave Dweller
Member since October 2012
Posts: 1,537
|
Post by metalsmith on May 22, 2017 16:08:16 GMT -5
Not the best picture ... pinolith maybe?
|
|
metalsmith
Cave Dweller
Member since October 2012
Posts: 1,537
|
Post by metalsmith on May 22, 2017 13:05:04 GMT -5
In the USA you seem to have many of our soft rocks infused with silica rocking the hardness up a step and making the rocks more resilient. @shotgunner Scott... maybe not ' is limestone': was limestone. Muddy limestone, given the depths it is found at the sediment is what is known as pelagic ooze, silica, that's where the replacement minerals originate coming from radiolaria since the terrestrial sediment sources are too distal. The sediments deposit out at the basin margins, but this is deep-sea / ocean material. Given the amount of shelly matter, it couldn't be anything else but a muddy lime originally. It is also worth looking at Belemnites in section - they'd fit the profile too.
|
|
metalsmith
Cave Dweller
Member since October 2012
Posts: 1,537
|
Post by metalsmith on May 22, 2017 11:12:26 GMT -5
*sigh* Again, those deposits are not old enough to have crinoids. Primarily small clam shells and such. The formation that material comes from is Miocene in age, much newer rocks than those containing crinoids which mainly died out in one of the earlier mass extinctions. There are still a few living criniods but not likely to be in those shallow water clam beds, mainly free swimming or deep water critters.....Mel Crinoids are now known to occur in the Miocene The extant crinoid fauna of the tropical western Atlantic includes 23 genera/34 species of "stalkless" comatulid crinoids and eight genera/ten species of stalked crinoids. This is far greater than the known diversity of fossil crinoids from the Antillean region, which spans circa 120 Ma. The apparent rarity of fossil crinoids is probably part artefact, produced by collection bias, taphonomic effects, and the relative rarity of exposures of sedimentary units deposited in 150+ m <depth>.
In essence then, if the deposits represent that rare environment (but do they?) then there's every chance that they may contain crinoids.
|
|
metalsmith
Cave Dweller
Member since October 2012
Posts: 1,537
|
Post by metalsmith on May 22, 2017 8:45:09 GMT -5
Metalsmith : I have some mica schist with garnets - the kind you can crumble. This piece does not crumble. I'm very very new to this. I hope that was a helpful answer! Its a start! If you're familiar with schistosity then you should know it when you see it (I take it maybe not from your answer). Not all schist crumbles, but much of it does. Also it doesn't take a huge stretch of the imagination to dig to the etymological root of the word; one which pervades the grade with much negativity even thought the mineralogy isn't necessarily tainted with any of it. In my climbing days, such crumbly material used to be closely aligned with the Germanic 'schist', just in (the very remote) case you were struggling. Sometimes it helps to back away from one possible answer just as much as it does to edge towards a positive identification. I can't help much further without additional images or preferably some basic mineralogical tests being tried.
|
|
metalsmith
Cave Dweller
Member since October 2012
Posts: 1,537
|
Post by metalsmith on May 22, 2017 8:39:06 GMT -5
Widespread those little critters were. Found a creek full of them last summer very high up in the Rockies. Yes - hence bio-stratigraphy works so well at providing relative ages of rocks & we can correlate the various bands across the globe despite different thicknesses / depositional environments / matrix colour-chemistry etc!
|
|
metalsmith
Cave Dweller
Member since October 2012
Posts: 1,537
|
Post by metalsmith on May 22, 2017 8:30:31 GMT -5
But to put my worth in. I would think it is either garnets in schisty matrix or corundum in zoisite. If you have a simple black light flashlight, the corundum should florescence bright red, where garnets don't. Also zoisite will be harder than a schisty garnet matrix. And welcome from old England. fantastic5 indeed that is a very confident (/ good) answer based upon one photo and no technical info. I don't see much by way of schistosity, but then maybe it's just not obvious in the photo. rebeccaink are you familiar with schistose foliation / texture? Do you observe any? It has to be the biggest give away so far as involving schist without a blacklight, though u/v would be a great piece of diagnostic kit to have.
|
|
metalsmith
Cave Dweller
Member since October 2012
Posts: 1,537
|
Post by metalsmith on May 22, 2017 0:34:33 GMT -5
I'm not getting much cutting done these days. This is about the only thing that has been cut this month except for a couple of 2-3mm diam turquoise discs. I'm just keeping my oar in and anyway I can't find an image of the rough, but what chance for this with the present competition? There's a chance I might get to cut something else today.
|
|
metalsmith
Cave Dweller
Member since October 2012
Posts: 1,537
|
Post by metalsmith on May 21, 2017 22:35:04 GMT -5
Yes Tela, I believe that is one name for this form of stone. I think metalsmith had other names also. Chas? Here are two more pics. One of the nodule and the other a detail closeup. This stuff seems hard. Sorry, no testing yet. Lol Hi Scott, yes, please find a link to this this recent thread/postI also see Crinoids. These rocks are pretty typical of the Carboniferous Limestone that we find over here. In fact I noted some on the top of the mountain I ran recently (all the photos expand if you click them). Here in the England, the limestones can polish up quite well, but these fossils tend to be relatively soft and break easily unless they are found in chert nodules; they're generally kept as fossil samples. In the USA you seem to have many of our soft rocks infused with silica rocking the hardness up a step and making the rocks more resilient. ETA just a bit more regarding assemblages - I believe these are generically called fossil assemblages and can be classified (such is the nature of the human) into life assemblages or living assemblages and death assemblages.
|
|
metalsmith
Cave Dweller
Member since October 2012
Posts: 1,537
|
Post by metalsmith on May 21, 2017 17:10:48 GMT -5
All different views of the same rock. See why I was surprised? Ok ... so would I be right saying that the oolites appear to be present in a specific bed. This happens!
|
|
metalsmith
Cave Dweller
Member since October 2012
Posts: 1,537
|
Post by metalsmith on May 21, 2017 15:43:54 GMT -5
Oolites ... coolites! The third rock is wonderful: great potential to show those off.
|
|
metalsmith
Cave Dweller
Member since October 2012
Posts: 1,537
|
Post by metalsmith on May 21, 2017 7:37:17 GMT -5
You have a beautiful polish on all of those!
|
|
metalsmith
Cave Dweller
Member since October 2012
Posts: 1,537
|
Post by metalsmith on May 20, 2017 12:38:53 GMT -5
Thanks everyone! I'm back with limited energy. The first half was amazing but then I ran out of juice...
A friend and I set off well; not leading (we wouldn't want to) but towards the front of the pack. There comes to a split in the route and everyone we were with turned right- the half marathon course. We turned left and ran well up the mountain. Coming down was awesome. Running around the base of the mountain showed up the the lack of those longer training runs! Eventually my legs gave up and I couldn't run at all, even down hill they were cramping. Nonetheless we had such a good start that we were still in a good place, just limited to walking. We finished and I don't have my previous times to hand but I think we'd taken 20 minutes off. Just think had we got to run more!
6hrs 17 if anyone is interested, but times mean nothing in mountain events; so much comes down to the route / ascent / descent (one was killer!) / prior and on the day conditions. A good day was had and raised some dough for cave rescue (they do mountain rescue too).
|
|