This is an archive of CompuServe forum messages from 1985 to 1995, as saved in transcripts by John Foust.
Search Results (40 messages)
Nathan– I don't know if the Sabina paper is still in print (GSC publications are notorious for going out of print). You may already know that there is a newer volume that covers the Bancroft area: Sabina, Ann P. 1986. Rocks and Minerals for the Collector: Bancroft-Parry Sound area and…
Hi, Doug– I'm pretty much satisfied with the "hydrocarbon-doped smectite" hypothesis, as it fits the environment of deposition, and there seem to be no significant objections (chemically/physically/petrologically). I'll maybe have to read up some more on smectites and hydrocarbons, just to be sure (or get hold of somebody who can…
Hi, Doug– >> Hydrocarbon inclusions in minerals often fluoresce a bright yellowish-white…> Are we talking radioactive like granite, or radioactive like high-grade uranium ore here? > Can you describe the brightness and precise color in terms of any "commonplace" (to fluorescent colors) mineral specimens?
Fluor. Mystery mineral
Message #174237
Here's one for you fluorescent-mineral hounds: I have a sample of rock from an oil-well core cut in the Jurassic Nordegg Member of the Fernie Formation in Alberta, Canada. The main lithology of the Nordegg member is dark brown to black, calcareous, very organic/petroliferous marine shale. The shale is locally…
Hi, Doug and Kamron! >> The lithosphere is colder than the mantle below it because it is more able to lose its heat to the surface. This makes it denser, and given any opportunity, it will sink …> (Kamron): Greenland looks like it drifted north while Iceland drifted south. >…
Ron, Ed's suggestions for searching other forums sounds good to me. I'm afraid I don't personally know much about Antarctica, or know anyone who studies it. Keep looking for responses in this forum, as I've found there are lots of good responses to my questions, but they may take a…
Hi, Ed– Here in paradise, there's 8 inches of snow on the ground, and it's been about -20 deg. for the last week or more, with a cold east wind! Oh, well, at least the skiing's good. 😉 –Howard (Calgary, Canada)
Hi, Doug– Please don't be nervous on my account! You are probably right about an old slice of Africa being welded onto NA, east of the Appalachians–I don't know–my knowledge of the various Eastern NA orogenic events is very cursory…I'm afraid I've become a victim of my own rash generalizations.…
Kamron– >> If this all happened…why do the continents fit so well together right now.
Ed– >> Agreed with most of your post, but I understood the collision BEGAN at this time or a little earlier and progressed southward…the bulk of the continental collision occurred even later, in the early Permian. Am I way off base here?
Doug– >> I also used the term "graben" solely for the former case – I hope it does not apply also to stretch marks due to an uplift.
#Rock Clubs On-Line
Message #172162
Hi, Doug Don't know if you're including fossil clubs in your database…if so, mine is: 75272.1316@compuserve.com Alberta Palaeontological Society P.O. Box 35111, Sarcee Postal Outlet Calgary, Alberta, Canada T2K 4M2 Howard Allen.
Origin of "Gulfian"?
Message #172155
Jim, Thanks for your input concerning the term "Gulfian." I figured it had to be a local term, since I'd never heard of it, and wasn't sure if it was still in use. Richard's message (#171862) narrows down the age ranges to my satisfaction. Thanks again, Howard
#Fold mountains
Message #172154
Kamron >> The deposits having slopped over the edge of the shelf would have seams that tilted upward. The general direction of the force pushing on them if it came from an ocean basin plate would be working the section in an upward angle. How would this transfer back hundreds…
Origin of "Gulfian"?
Message #172153
Dick, Thanks for the info re: "Gulfian" I'm glad you also defined "Comanchean" and "Cohuilan," as these terms are equally mysterious to me and my library! Howard
Kamron: What about all that mud…and all the salt in the oceans? I don't think there is any "missing" material that needs to be explained away. The ultimate origin of all clastic sedimentary rocks is igneous and metamorphic rocks–granites, lavas, gneisses, etc. All these primary rocks are composed of mixtures…
Mike:
Hi, Kamron What was the 1% that presumably gave it the appealing name "black muck"? Some of the more interesting sands in my collection are the single-mineral sands that occur in some areas where heavier minerals are sorted by wave or current action into concentrated deposits. The most common of…
Rod: Thanks for the info, regarding boxes and the South African sand collector. As I noted in my reply to Nathan, there seems to be a disagreement re: the address of David Shannon Minerals. Will the real David Shannon please stand up? 🙂
Nathan: Thanks for the info re: micromount boxes. Looks like I should be able to find something to my liking. One problem seems to have cropped up… You show David Shannon's address as 6649 E Rustic Drive, while Dr. Burroughs (Message #165748) has 1727 W. Drake Circle. Either D. Shannon…
Hi, Andreas- I've never seen sand size scales embedded in resin, but we wellsite geologists use plastic cards with scaled (Wentworth/phi) sand sizes for quick, accurate size comparison. My favorite card is made by: Canadian Stratigraphic Service Ltd., 3613 33 Street NW, Calgary, Alberta, Canada T2L 2A7, phone (403) 284-1112…
Hi, Doug! You mean I'm NOT the only one on the planet who collects sand?? I can use this bit of information next time my friends tell me to "get a life, Howard!" I've got a small, but diverse collection of sands from all over the world– including Antarctica and…
#Micromount boxes
Message #165622
Hi Dr. Burroughs! You seem like the right guy to quiz about something I've been looking for to house some of my smaller fossils. A friend gave me a small box that originally contained a lapel pin, but he had no idea where it came from originally, and there was…
John: Another possible source of scopes, though probably inconvenient unless you live or have friends in Houston or Denver is oil company liquidation auctions. Every time the oil industry hits the skids and a new round of "downsizing and rationalization" occurs, some interesting items hit the "used office supplies" auctions.…
John: I bought my microscope over 12 years ago, at a geological supply company, here in Calgary, Canada. At the time, they were offering cheap rates on used microscopes for geology students. I paid about $250. (At that time it probably retailed new for about $800-1000). The scope is a…
#16061-
NW Paleontological Assoc
Message #16132
Tracy: Sorry to take so long getting back to you…I'm at a remote location and have only limited access to a phone (and a crummy cellular link, at that!). Glad to hear from a former member! Darren Tanke dropped out some time ago, due to problems commuting to/from Drumheller. Our…
Mike: There is a lot of tertiary outcrop here in western Canada, much of it fossiliferous, including fairly diverse mammalian faunas (Paleocene, Oligocene, Miocene), plants and some insects. If any of your members are interested in this area, I can probably scrounge up some references for further reading. Howard Allen
Hi Bruce! Good to hear from you, eh? 😉 Any good fossils in Guyana, or are you a hard-rock guy? Howard
Michael: >>several areas of Miocene/Oligocene marine sediments containing fossil crustaceans…All are found in concretions, and generally very hard to prepare
James: Welcome to the club! Did you catch our (brief) discussion of glacial land forms in "Airliner Geology"? Might still be on the forum.
Doug: >>Fully-automatic access programs ("navigators") like OzCIS, TAPCIS, and so on would help a lot.
Hi Graham, Just another welcome, from another (relatively) new member. I visited the UK last year for two weeks–didn't see any volcanoes 😉 but had a great time fossil-hunting in Dorset. I was especially impressed with the ability to come around a headland in the rain and find a nice,…
Doug– Thanks for the welcome…pretty friendly bunch online! Will be out in the bush for the next month or so: if my messages go unanswered for a while, it's not because I'm ignoring anyone. Will try (good luck!) to log on via cellular phone once in a while. Howard
Hi Michael, Thanks for the welcome and the invite. If I ever get a break from work, I'd like to head west and do some scrounging around on Vancouver Island, etc. I've heard Washington State has some interesting Cretaceous or Tertiary crab fossils…? Your find of a "clam in a…
Don, Alberta DOES have draconian fossil collecting laws. But as with most laws, there is a letter of the law and a spirit of the law, and in this case, as long as the spirit is followed, the letter is rarely enforced. This is basically how it works at present:…
Kamron: >>Since you seem familiar with glaciers have you inspected the moraine often? I have an unsettled problem with the formation of gravel. Isn't the gravel very rough surfaced in the moraine?
Kamron (Excuse my newbie naivete–don't know what PMFJI means!) Your description of the igneous dike in Mexico sounds interesting. I've never seen anything like that. Something you Americans probably don't see too much of is glacial landforms, which can be pretty wild when seen from the air over much of…
John: Thanks for the welcome. I'm surprised to hear I'm the only Canuck in this forum, since there are hundreds (maybe thousands?) of geologists in Canada, especially in Alberta & Calgary. Yes, you've heard right–this can be a very good area for collecting. Almost all periods, from Precambrian to Recent…
Doug: Your message reminds me of a flight I took in 1988 from Miami, FL to Calgary, AB via Orlando and Salt Lake City, UT. I also got the "geologist's seat" (window seat, ahead of the wing) and saw some remarkable scenery. By far the most interesting sight over Florida…
New Forum Member
Message #162572
Hello all, I'm a Compuserve/online newbie, so just getting a feel for things. I'm a geologist in Calgary, Alberta, Canada, and my principal interests are paleontology (especially invertebrate) and sedimentary geology. I've already browsed some interesting items in this forum–looks good so far! Also joined the dinosaur forum, so you…