It always amazes me how wildflowers and plants can find enough nourishment to flourish on the rocky shorelines of the U.P. Today's study of this phenomenon, has been made possible by Patrick McKenney, Steve Haagen, and Joseph Hurley, over in our ever expanding Guest Gallery. The vegetation in question in these three specimens, are not really growing out of the rock itself, but actually growing out of a crack in the stone. After doing a bit of Internet research, I've come up with a key ingredient needed for this plant evolution. All three photos contain that fundamental element....what is it?
solid rock is the starting point for soil and all those garden veggies we grow. Over time, wind, rain and other weathering factors break up rock into little pieces. Lichens help this process. Usually the first plant to appear on bare rock surfaces, lichens secrete acids which dissolve the rock. Lichens also loosen rock as the plant swells and contracts during wet and dry periods. These particles are blown or washed into crevices or onto lower ground. Like plants growing between cracks in a sidewalk,or rocks ,mosses, weeds, and tiny organisms move in as the soil collects.
Mary, I'd say the presence of water nearby to provide spray, fog and dew to the plants make their life possible. The moisture collects in the cracks along with dust and rock eroding from winter frosts to provide some nutrients - lightening gives a little nitrogen with rainfall and the little things hang on with the perserverance of all healthy life. Your selection of pictures make my morning brighter after a night at work. I sleep the better for it. Thanks to you all.
By P&G,TN on Thursday, August 26, 2004 - 07:50 am:
There has to be some dirt. Water will come from the rain. A seed had to be blown there. That's my guess.
In Georgia, we have Stone Mountain, which is the biggest hunk of granite in the world. There are TREES on it in a few areas and we have always found that to be amusing.
Pete Wis: We used to call one of them "Bald Mountain" and its a steep climb through the woods from the west. Pretty much a cliff on the east and south. Its been years since I've been out there, but its on my list of things to do with my next vacation. I'm sure one of the locals can give directions.
By Lez on Thursday, August 26, 2004 - 09:47 am:
Seven more days and then its Bessemer bound for 18 days. Staying at Blackjack Resort and visiting friends in Ironwood, plus all the fishing we can handle on Lake Gogebic. The best way to keep friends when you have 2 small kids(3 and 7)is to stay at a Hotel or Lodge etc. God willing we will be moving to the UP within the next 18months. Da wife thinks its a good idea-after 14 years of pleading.We also hope to get over to the Houghton area also after visiting Ontonagon/Victoria. We have 3 or 4 day trips planned.We plan on living around Ironwood but we want to check out all available options.
By Mr. Wheatman, South end on Thursday, August 26, 2004 - 11:28 am:
Speaking of Finnish words... Can someone define these two in detail? I am SURE I won't spell them correctly, but here goes...
Gubika (I think it's a bar?) Rondimucki (Some type of a home on the lake?)
My Uncle Henry, (I won't spell his name right either), Lokkinan lived in what he always called the Rondimucki.
Thanks!
By Katherine on Thursday, August 26, 2004 - 12:40 pm:
What a lovely way to spend my lunch-time! The pictures are breath-taking and the conversation the most stimulating I've read in eons. Though I'm geographically a troll, part of my heart belongs to da UP. I've always been amazed at the tenacity and strength of plants/trees... blooming flowers 1/2 inch high in the Mojave Desert, Giant Sequoias, Bristlecone Pines thousands of years old, and even the old hemlocks, oaks and maples that cling to the ledges in Grand Ledge. The friend who sent me here thought someone might know of a source for Petoskey Stone beads--I've heard they are sold in the Keweenaw 'at a rock/souvenier store'. Send details to: strassburgk@michigan.gov}. Thanks......for now, back to work!
By julie b., MI on Thursday, August 26, 2004 - 12:49 pm:
Ok folks, here is a somewhat scientific explanation of soils!! Mechanical and chemical weathering of sediment and the pre-existing solid rock (bedrock) underlying it produce "regolith", or a rock blanket. Geologists call the upper few meters of regolith which contains mineral and organic materials "soil", which are the most common product of weathering on land. There are 5 important factors in soil development. 1) A soils "parent material" is the bedrock (in our case, basalt or conglomerate) and sediment (sandstone or glacial materials) from which a soil develops. The parent materials mineral content determines the nutrient richness of the resulting soil and the amount of soil produced. 2) An area's "climate" (temperature and precipitation) controls the rate of chemical weathering and consequently the rate of soil formation. Chemical weathering and soil formation is most rapid in warm, moist climates and slowest in cold, dry climates. 3) "Topography" influences the availability of water and other weathering factors as well as soil accumulation. Level, low lying areas contain the deepest soils while steep slopes have little or no soil accumulation. 4) "Vegetation" provides organic matter to soils and produces much of the ingrediants for chemical weathering reactions. 5) The last factor is "time". It may only take a few hundred years for a soil to develop in a warm climate but may require thousands of years in a cold or arid region. So what does this mean for our little plant? Well, it probably means that it has an ample supply of nutrients from the rock (calcium, iron, etc..), an endless supply of water, and perhaps a little SISU to survive the winter.
I'm in the same situation as Dr. Nat; I went to school for a really really long time to know this stuff!! I think it paid off ;-)
Whooo hooo! There's a lot of intelligence (sometimes represented by great humor) represented here!!
By Rex Skea MI on Thursday, August 26, 2004 - 02:05 pm:
Another greeting from sunny Nevada! I just got out of a rather boring (but mandatory) faculty meeting and it is a great treat to be able to sit in my office now and look at the pretty pictures on the PastyCam and read all the comments. Capt. Paul provided an excellent explanation about how soils form. I am amazed that a mining geologist who flirted with the ladies during most of his soils class remembers so much ;-) Just as an addition to his explanation: There are thousands of different kinds of soils that can form. The single most important factor affecting soil formation is climate. As Capt. Paul mentioned, the rate of chemical weathering is controlled primarily by temperature and precipitation. However, in a place like the U.P. of Michigan, physical weathering is also affected to a large part by climate. On those nice Spring and Autumn days when the weather is warm during the daytime but freezes at night, lots of physical weathering of the rocks is taking place. It starts when water flows into tiny, tiny microcracks in the rocks. At night, the water freezes. Water expands as it freezes, enlarging the crack, eventually making the crack large enough for a little bit of soil to form, a seed to fall, and pretty flowers to grow.
By DebDiver from Canton on Thursday, August 26, 2004 - 03:05 pm:
Last summer there was a coffee shop in downtown Houghton that had internet access, can't remember what the name was but the caramel latte was excellent!
By mckenneyp, GR MI on Thursday, August 26, 2004 - 03:23 pm:
Audrey, San Jose, CA - As DebDiver from Canton said there is a place right downtown Houghton, it's on the North Side of the road that you can get internet access with a purchase. I don't drink any sort of coffe, but my wife liked whatever she got and I got to surf the web. This was just a few weeks ago.
Even on vacation a Network Engineer can only go SO LONG with out the internet... I start to feel claustrophobic!
Thanks Mary for Posting my Picture! Wouldn't it figure the one day Work is NUTS and I can't check it until way in the afternoon my picture is up there.
Somebody thought the flower was a Harebell, and I belive taht to be correct. There is a picture in my gallery from last year of one also.
Hope you all enjoyed the pic. It was taking at Presque Isle in Marquette. Have a great rest of the day!
By Greta got-rocks, Milw on Thursday, August 26, 2004 - 03:50 pm:
Pete from Lansing - hey, couch monkey - see you over the Labor Day weekend. I'll be up nort for a wedding reception and checking out the final embellishments of the newly refurbished schmitt house at the cottage - new paint job and new floor tiles. Hoo, hoo - can hardly wait.
By Therese from just below the bridge on Thursday, August 26, 2004 - 03:54 pm:
I'm so glad I found this site over the summer! In the past few months I've enjoyed great debates, casual conversation, fantastic pictures, found a distant relative right here in fond du lac and learned about SISU. Today was no different, I laughed out loud with the visual on the cyber cafe : ) Nice job Mary and Charlie, keep up the good work.
By The Infrequent Poster on Thursday, August 26, 2004 - 05:38 pm:
HAHAHA! There wasn't one in the rantamokki, but I remember going to the Gay Kapakka and playing with a dog named ACE, when it was owned by a lady, maybe 35 years ago, or so. Thanks for the correction!!! Now tell me how to spell my uncle's last name! LOL.
By DB on Thursday, August 26, 2004 - 06:41 pm:
Audrey : ) HaHaHa! Traprock valley road is a nice scenic drive. Fond du Lac, wisconsin. It's about 2258.92 miles east of san jose...or approx 33 hours and 45 minutes (well, according to mapquest). Fond du Lac is on the southern most tip of Lake Winnebago.
By Bek, Fond du Lac on Thursday, August 26, 2004 - 07:30 pm:
Audrey, It's our last harrah before school starts so we're sticking close to home. We have the zoo, county fair and chuck e cheese for sure. Are you visiting family in michigan? how long you staying? What brought you there the first time?
By Audrey, San Jose, CA on Thursday, August 26, 2004 - 07:53 pm:
Sweet Pea: I was Capt. Paul's favorite person to flirt with-- that's why he married me.
Grimace: Capt. Paul graduated Tech with a geology degree and now is an independent mining consultant. Me, I warp young minds at the University of Nevada Las Vegas.
By I dunno. on Friday, August 27, 2004 - 12:00 am: