Feeds:
Posts
Comments

Posts Tagged ‘Quartz Vein’

I wanted to see how the ice columns had grown at the deep cut up in Westmoreland so off I went last week with low expectations. With the unusual warmth we’ve had I wasn’t sure I’d see any and when I saw the parking lot empty I was pretty sure I had wasted my time. No ice climbers on a January weekend is unheard of but I found out why; though there were ice columns most were rotten and crumbling.

An opaque finish on ice it does not bode well for an ice climber, because ice that looks like this is rotten and unsafe. Ice becomes rotten when water, air bubbles, and/or dirt get in between the grains of ice and cause it to honeycomb and lose its strength. Instead of a sharp ringing crack when it is struck it produces more of a dull thud. The grayish white color and matte finish are a sure sign that you should stay away from it when it’s hanging over your head. Ice grows very clear and  shiny when it’s cold and it doesn’t usually get rotten until March. Since January’s average temperature has been a full 8 degrees above normal I wasn’t that surprised to find it rotten.

The slush underfoot showed how warm it was, even in here where the temperature is usually a good 10 degrees cooler.

This is where I’d expect to see climbers. There were signs that they had been here but nothing recent.

Just so you can get an idea of the scale of the place here’s a shot of some ice climbers I took previously in about the same spot as the previous photo. It was a lot colder that year.

Leaving the northern canyon in the previous photos, I made my way into the southern canyon. It was here that disappointment hit me, because you could see as much stone as you could ice.

This photo from 2015, taken from about the same spot as the previous one, shows what the southern end of the trail looks like in a cold winter. You don’t see a lot of stone.

I did see some colored ice though. All of this ice is caused by groundwater constantly seeping through the fractured stone of the canyons and I think the color comes from various minerals in the water. This photo also shows another example of rotten ice; there is no shine to it at all when normally it would shine like glass. It’s dull and completely opaque.

The mineral laden water also stains the snow.

Here were some stains on the stone; caused by iron, I’m guessing.

There was some hard shiny ice here, but very little.

The railroad engineers knew about all the groundwater and they built drainage diches along the sides of the rail bed to carry it all away, but to see the ditches open and flowing in January was odd. Usually the ice covering them is strong enough by this time to walk on them.

The mosses seemed to be loving the weather and I loved seeing the mosses.

I’m guessing that I’ve been through here a hundred times or more but I had never seen this big vein of quartz until this day. That’s why naturalist John Burroughs said “To find new things, take the path you took yesterday.”

Here was an ice column just getting started. It was about as big around as your thigh and, though it’s hard to tell from the photo, it only touches the stone at its top and bottom. If it grows it will become as big as a tree trunk in diameter and attach itself to the stone all along its length. Clearly though, the mosses were winning on this day.

Here were some chunks of fallen ice along the side of the trail. When an ice column detaches from the wall it can fall across the entire trail, and when that happens this can be a very dangerous place to be. Once or twice I’ve seen small pieces fall; I didn’t hear a thing until they hit the ground so I doubt you would have any warning.

Here was more fallen ice. Any one of these pieces was big enough to kill someone and that probably explains why I didn’t see any snowmobilers here. I saw one lady on cross country skis and she looked like she was trying to get out of here as quickly as she could.

If a piece of ice or stone falls on you from way up there, you’re all done.

This is the biggest piece of ice I’ve ever seen and I know that don’t want to be anywhere near it if it lets go and slides into the trail. It’s like a small glacier.

Behind this ice was a hidden waterfall of groundwater and it made the ice crackle and sizzle like bacon frying in a pan. It was one of the strangest sounds I’ve ever heard in nature.

Here was another smaller waterfall that had washed away most of the ice that covered it. It shows how water streams off theses walls in places. When you understand that all this water is groundwater, running under the ground we walk on, it seems incredible.

Board by board the old lineman’s shack slowly disappears, yet still it stands, a testament to the quality of the railroad worker’s craftsmanship . Each year I tell myself it can’t possibly stand through another winter but here it is. How will I feel I wonder, when it finally comes down?

How much water can the weight of ice carry?
~Dianna Hardy

Thanks for coming by.

Read Full Post »

1-pond

Every now and then I get discombobulated and run out of ideas for blog posts. Inspiration is a funny thing that seems to come and go as it pleases, and though it has left me only three or four times since I started this blog it is always a bit disconcerting when it happens. It is almost as if my mind has gone completely blank as far as ideas are concerned but I’ve learned that this can be a special time, because when it happens I simply walk into the forest and let nature lead me where it will. On this day I decided to visit a local pond.

2-leaves-on-water

There were many leaves on the water surface, most of them oak.

3-oak

But not all of them had fallen. Oak leaves are still beautiful, even when they’re finished photosynthesizing.

4-low-water

The 8 foot strip of sand where there usually isn’t any showed how the drought has affected this pond.

5-alder-tongue-gall

Instead of being caused by an insect like many galls, alder (Alnus incana) tongue gall is caused by a fungus (Taphrina alni). The fungus chemically deforms parts of the ovarian tissue of the female cone-like catkins (strobiles) and causes long, tongue shaped galls known as languets to grow from them. These galls seem to like high humidity and are usually found on alders that grow near swamps, ponds and streams. There are many alders along the shores of this pond.

6-false-dandelion

The big surprise of the day was this false dandelion blossom (Hypochaeris radicata.) The flowers of false dandelion look much the same as those of true dandelions in a photo, but in the field they are much smaller and stand on 6-8 inch long, wiry stems. They’re obviously very hardy.

7-trail

All of the previous photos were taken before I had even set foot on the nice wide trail that follows along one side of the pond. That’s how much there is to see here.

8-fern-on-stone

The boulder that you can see on the right in the previous photo had a crack in it and one of our evergreen ferns decided to call it home. I’ve known this fern for several years now and I’ve never seen it get much bigger than an orange.

9-beech-leaves

I was grumbling to myself about the harsh sunlight and how difficult it was to take a decent photo in conditions like these, and then I saw this and stopped grumbling. The sunlight coming through the beech leaves made a beautiful picture and I sat down on a stone to take a photo and admire the scene. That’s when nature decided to show me a few more things.

10-bark-beetle-markings

I looked down and saw a pine limb that had been attacked by bark beetles. There’s nothing unusual about that but what was unusual were the channels that looked as if they had saw teeth. They’re usually smooth sided and I’ve never seen any like them and haven’t been able to find anything like them on line. They reminded me of ancient hieroglyphs. I’d like to know more about them if anyone is familiar with them.

11-squirrels-lunch

To my right on a log was what remained of a squirrel’s lunch. It looked like there was plenty of acorn meat left and I wondered if I had scared it away. Squirrels in this neck of the woods like to sit up on a log or stone or even a picnic table to eat; virtually anywhere off the ground. An adult gray squirrel can eat up to two pounds of acorns each week. Since there are 60-80 acorns in a pound a gray squirrel eats a lot of them each week. At the high end that’s 23 acorns per day. This year there are enough to support a lot of squirrels.

12-smoky-eye-boulder-lichen

A rock near the one I sat on was covered with beautiful smoky eye boulder lichens (Porpidia albocaerulescens.) The blue bits are the spore bearing apothecial disks of the lichen. They have a waxy coating that reflects light much like the whitish bloom on blueberries and which makes them appear blue in the right light. The black border on each disk makes them really stand out from the body (Thallus) of the lichen even though each one is smaller than a baby pea.

13-mycelium

I rolled a log aside to see if there were any cobalt blue crust fungi on it but instead I saw this where the log had been. The mycelium of an unknown fungus was there in the leaves, reminding me of a distant nebula where stars are born, or a streak of lightning flashing in the evening sky, or a woman in the wind with her hair and dress blowing all about her. I love these beautiful bits of nature that can capture your mind and let you step outside of yourself for a time, oblivious to everything except the beauty before you. If somebody were to ask me right now why I spend so much time in the woods and why I do this blog I’d have to show them this photo. And then hope they understood that it’s all about the beauty of this life.

14-frosted-fungi

I saw a few bracket fungi on a nearby tree but they were past their prime. Our mushroom season is about over now except for a handful of the so called winter mushrooms.

15-witch-hazel

The fragrance of witch hazel (Hamamelis virginiana) was with me all along the path. Witch hazel is our last wildflower to bloom and is pollinated by owlet moths, which are active in winter and are called winter moths. These moths raise their body temperature by shivering. Their temperature can rise as much as 50 degrees and this allows them to fly and search for food when it’s cold.  It must work well because our witch hazels are always loaded with seed pods.

16-script-lichen

Many script lichens decorated the tree trunks. I always find myself looking for words in photos like this one. I never find them but I do see random letters. The light colored background is the body of the lichen and the darker “script” is where it releases its spores. There are 39 species of script lichens in North America and many more throughout the world, and their most important identification characteristic is their squiggly apothecia. I’ve seen examples that have apothecia that all run horizontally or vertically, but most seem random like those in the photo. The script lichen I want to see most of all is the asterisk script lichen, with apothecia that look like tiny stars.

17-frullania-asagrayana-liverwort-2

There are about 800 species of Frullania liverworts and many grow as epiphytes on the bark of trees and shrubs where the humidity is high. Epiphytic plants take nothing from the host plants they grow on, so this liverwort does no harm to trees. It can look very lacy and fern like at times. Sometimes it reminds me of the beautiful fan corals found on distant coral reefs, as the above example does.

18-frullania-asagrayana-liverwort

The very small leaves of the Frullania liverwort are strung together like beads. Some Frullania liverworts are said to be very fragrant but I keep forgetting to smell them. That probably happens because a close shot of them is always very hard for me to get and takes quite a lot of concentration.

19-quartz-vein-in-granite

In geology a vein is not tubular but is, according to Wikipedia  “a sheet like body of crystallized minerals within a rock. Veins form when mineral constituents carried by an aqueous solution within the rock mass are deposited through precipitation. The hydraulic flow involved is usually due to hydrothermal circulation.” Veins can also be beautiful, as this vein of milky quartz in a granite stone shows. If I remember my geology lessons correctly if the quartz were in a tubular form it would be called an intrusion.

So, that’s what nature showed me when I walked into the woods with a blank mind. The answer to what to write a blog post about came when I wasn’t thinking about the question. Just walking into the forest and looking around was all I needed to do.

Once you really commence to see things, then you really commence to feel things. ~Edward Steichen

Thanks for stopping in.

Read Full Post »