Was thinking of you today, Lij -- Sin and Tacos aka Lesbobitca Land

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Date Posted: Sunday, May 01, 09:48:00pm
Author: AurraSing
Author Host/IP: d154-20-56-110.bchsia.telus.net / 154.20.56.110
Subject:

Was thinking of you today, Lij

We drove up to Nanaimo this morning to grocery since Ali now works at Costco part time and we use her free membership...

On the way back we were about to go past a large exposed rock bluff that was blasted out when the highway bypass was created when we spotted several dozen people wearing safety vests standing in the small ditch between the side of the highway and the rock bluff. Ali sort of laughed and said, "Must be the geology students!"

Sure enough it would appear some kind of field class was going on. So much for being way out in the boonies, they were about a fifteen minute walk uphill from the campus!

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[> Sorry, I guess.... -- Lij, Thursday, May 05, 04:34:51pm (adsl-99-102-185-117.dsl.bltnin.sbcglobal.net/99.102.185.117)

.......... I didn't think of coming here for a while.

Yep, we go where the rocks are! And they don't have to be in the boonies. Highway rock cuts are great places to go. I still have a favorite road cut on Interstate 64 south of my home in Indiana to find Mississippian crinoids and blastoids. The cut is stair stepped, so it makes it easy to get to most of the exposed section. So many people have been banging on the cut that it almost looks as if it has been mined.

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[> [> No problem. Just never considered rock cuts could be that interesting. -- AS, Sunday, May 08, 11:32:49pm (d154-20-56-110.bchsia.telus.net/154.20.56.110)

The interesting places I think of are the shales fields and parts of the Rockies I have been to where you can see the huge folds where the earth rippled likes a huge marble cake. I'm not a rock hound though so I tend to be dazzled by odd formations and the odds of seeing a fossil. Speaking of which, people have found some truly amazing gigantic fossilized ammonites back in the Elk Valley but I don't think I have ever heard anyone mention them in connection with the local coal mines here...must be a different era I guess. Huh.

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[> [> [> I know what you mean.... -- Lij, Monday, May 09, 01:27:53pm (adsl-99-102-184-101.dsl.bltnin.sbcglobal.net/99.102.184.101)

I've remember the BC Rockies and have pinned several pictures to my Geology board at:

https://www.pinterest.com/lynnfdr/geology/

Such as:

https://www.pinterest.com/pin/157485318198946858/

https://www.pinterest.com/pin/157485318195719943/

https://www.pinterest.com/pin/157485318198520000/

https://www.pinterest.com/pin/157485318197867658/

And Ammonites:

https://www.pinterest.com/pin/157485318198946987/

And quite a few others.

Though, I don't know if you can see them without being a member of Pinterest??

From what I remember of the Nanaimo Group sediment from which the coal was mined it is a complex of deltaic sediments and turbidity flows that was deposited primarily in the Cretaceous, but also into the Paleocene. The source was to the west - a geo-anticlinal terrain which buckled up over the subduction zone. So much the lower section of sediments at Nanaimo are of the right age for ammonites. You just have to find the more marine sediments in the Group. A blogger I follow wrote about it a couple of years ago:

http://geotripper.blogspot.com/2014/08/northern-convergence-vancouver-island_22.html

And he has other posts that cover Vancouver Island that you might find interesting.

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[> [> [> [> Thanks! I've been offline a fair bit this last week and just catching up -- AS, Monday, May 16, 08:38:42pm (d154-20-56-110.bchsia.telus.net/154.20.56.110)

That post about Nanaimo was pretty good-the First Nations people of this area still create petroglyphs but use a Dremel now, there are a few at the salmon hatchery we visit regularly. The fossils of this area are interesting, I thought we should have a fairly good selection given the coal mining that helped create so much of this particular area!

I'll have to try those Pintrest when I am on my PC, for some reads my iPad doesn't even want to copy them to open. Weird! I think we've seen a few fern and very simple fossils but nothing like we have seen when we walk along creek beds in either the BC Rockies or over in Alberta in the Crowsnest area. Nothing huge, mind you but enough to to get the kids excited!!

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