Jun 20-15

Past-E-Mail: Cam Notes - 2015: June: Jun 20-15
Presque Isle Park fungi    ...scroll down to share comments
Photos by Danielle Adams
More large fungi    ...scroll down to share comments
Photos by Danielle Adams
Root-bound trail    ...scroll down to share comments
Photos by Danielle Adams
Big dark rock    ...scroll down to share comments
Photos by Danielle Adams
Interesting rock layers    ...scroll down to share comments
Photos by Danielle Adams
Tired, broken tree    ...scroll down to share comments
Photos by Danielle Adams


By
Mary Drew at Pasty Central (Mdrew) on Saturday, June 20, 2015 - 08:22 am:

One of the advantages of living in Marquette, for Danielle Adams, is being able to head out to Presque Isle Park to hike around and check things out.

During her excursion this day, she spotted some large fungi growing on downed trees along the trail she was walking. And from the looks of the root system in her third photo, she had to pay attention when walking the trail so as not to get tripped up with all those exposed roots. She also encountered some interesting rock specimens, especially the one that looks like it has layer upon layer making up its interesting shape.

The tree in Danielle's last photo must have been broken and bent over for a time now, since all the bark is worn off and it looks like prime wood for a beachside bonfire. This is one place that I have to put on my bucket list. I've been to Marquette so many times that I cannot even count them anymore, but it's always with a mission in mind. One of these days, I just need to go there and explore places such as this.


By Janie T. (Bobbysgirl) on Saturday, June 20, 2015 - 08:27 am:

Simply Superior!


By mickill mouse (Ram4) on Saturday, June 20, 2015 - 08:40 am:

it is amazing what you come across on a walk thru nature....


By Alex "UP-Goldwinger" (Alex) on Saturday, June 20, 2015 - 08:43 am:

Humongous funky fungus amongus...very nice!


By Capt. Paul (Eclogite) on Saturday, June 20, 2015 - 08:49 am:

If I had to guess, "big dark rock" looks like a piece of the Deer Lake Peridotite. "Interesting rock layers", believe it or not, is actually the same Jacobsville Sandstone you see along the east side of the Keweenaw. We've been out to Presque Isle many times and always see something different during each visit. I'm sure we'll be out there again next month....


By Shirley Waggoner (Shirlohio) on Saturday, June 20, 2015 - 09:17 am:

Very interesting!!


By Deb S. (Usedtobeayooper) on Saturday, June 20, 2015 - 09:29 am:

Love these, and I especially love the tree root.
Reminds me of something I'd see at Esrey in the
Keweenaw. Thanks, Danielle.


By Duane P. (Islandman43) on Saturday, June 20, 2015 - 09:55 am:

Great photos today of some interesting residents of Hotel Earth.


By Pat & Glenda (Gormfrog) on Saturday, June 20, 2015 - 11:48 am:

Capt.Paul is correct, each trip to Presque Isle holds something different and interesting, especially if you just wander a bit off the loop road. Very unique area, and almost always some unique visitors to chat with.


By jbuck (Jbuck) on Saturday, June 20, 2015 - 11:52 am:

OK, Capt Paul, you can't say that without reminding us (if you have explained before) something about Deer Lake Peridotite!


By Capt. Paul (Eclogite) on Saturday, June 20, 2015 - 02:32 pm:

The Deer Lake Peridotite is a metamorphosed peridotite sill named for its type locality (where the best outcrop is), Deer Lake north of Ishpeming. The rocks were originally deposited during the NeoArchean (2.7 Ė 2.5 Ga) as peridotites likely derived from the lower crust. They were then metamorphosed into serpentinite (or serpentinized peridotite) which we see today around Ishpeming. In places, the serpentinite has been metamorphosed further into talc. Also, the Deer Lake Peridotite is the host rock at the Ropes Gold Mine, with the gold being found in quartz veins that cut across the Peridotite. I donít want to get into the intricate details of the rock right now; just the Cliff Notes version. I could go into a dissertation on Marquette area geology, but I donít want to bore anyone on Pasty. ;-)


By jbuck (Jbuck) on Saturday, June 20, 2015 - 06:10 pm:

Thanks Capt Paul! It seems safe to say you aren't boring MOST of the Camers who find this type of information fascinating.


By mickill mouse (Ram4) on Saturday, June 20, 2015 - 07:05 pm:

you can learn something new everyday. ;O)


By Alex "UP-Goldwinger" (Alex) on Saturday, June 20, 2015 - 07:07 pm:

Interesting stuff, Capt.!


By Alex "UP-Goldwinger" (Alex) on Saturday, June 20, 2015 - 08:16 pm:

...reminds me of a rock formation that comes out of the earth in a curved shape, then curved back down and resurfaces again hundreds of miles away. Can't remember the name or place...maybe Australia???


By Deb S. (Usedtobeayooper) on Saturday, June 20, 2015 - 08:38 pm:

Definitely safe to say that the Capt knows his
stuff.


By Capt. Paul (Eclogite) on Saturday, June 20, 2015 - 09:31 pm:

Alex,
You're thinking of Ayers Rock (Uluru) and the Olgas in Australia. Below is a figure showing the relationship.

UluruOlgas


By Alex "UP-Goldwinger" (Alex) on Saturday, June 20, 2015 - 10:20 pm:

That's it, Capt.
http://www.crystalinks.com/ayersrock.html


By Danielle Adams (Badkid) on Saturday, June 20, 2015 - 11:25 pm:

Thanks everyone! I always find something that catches my
eye there at Presque Isle! Love that place and love that I'm so
close!! :)


By Alex "UP-Goldwinger" (Alex) on Saturday, June 20, 2015 - 11:30 pm:

Y'all listen to Capt...he got's college.


By D. A. (Midwested) on Saturday, June 20, 2015 - 11:33 pm:

Doesn't the same sort of geosyncline show up in the
formation of the Keweenaw and Isle Royale?

Not that it's related so much to the geology, but
more to the lack of topsoil, that rooted trail
reminds me of Isle Royale trails.


By FRNash/PHX, AZ (Frnash) on Saturday, June 20, 2015 - 11:39 pm:

Alex "UP-Goldwinger" (Alex):
"Y'all listen to Capt...he got's college."

Yep, that and nollege, er… knowledge. 😉


By Capt. Paul (Eclogite) on Saturday, June 20, 2015 - 11:50 pm:

Yes it does, D.A. In fact, the "geosyncline" you speak of can be traced using the Greenstone Flow, which outcrops along the cliff on the Keweenaw as well as the ridges along the spine of Isle Royale.

No, thank you Danielle! Hopefully we'll be able to meet up later this summer....


By D. A. (Midwested) on Sunday, June 21, 2015 - 12:09 am:

I remembered "something" from high school earth
science.

I've collected several polished Greenstones from
Isle Royale, long before the practice was outlawed
a few years ago.

http://www.minsocam.org/msa/collectors_corner/usgs/b1309f38.jpg


By Alex "UP-Goldwinger" (Alex) on Sunday, June 21, 2015 - 12:21 am:

Interesting stuff...like we are all connected, somehow.


By Thomas Baird (Thomas) on Sunday, June 21, 2015 - 07:02 am:

Yes, interesting, Shirley.


By Capt. Paul (Eclogite) on Sunday, June 21, 2015 - 03:25 pm:

Well, I try.....


By jbuck (Jbuck) on Sunday, June 21, 2015 - 06:00 pm:

Saw this news item:

The Humboldt Mill opened its doors to the public for the first time on Friday. The summer tour season has started and this year visitors can see the Humboldt Mill as well as Eagle Mine. No tour group has ever set foot inside the Humboldt Mill until now.

Is the Humboldt Mill unique in any way?


By Capt. Paul (Eclogite) on Sunday, June 21, 2015 - 06:23 pm:

Not really. Cleveland Cliffs (CCI) built the mill in the 1950s for the milling of iron ore from their adjacent open pit mine. CCI ran the operation until the early 1980s when they sold it to Callahan Mining Company in 1985. Callahan then used the mill to process gold ore from Ropes Gold Mine until they too ceased operation around 1992. Rio Tinto/Eagle Mine bought it in 2008 and refurbished the mill to process ore from Eagle. Today, the mill (and mine) is owned by Lundin Mining.


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