Showing posts with label night. Show all posts
Showing posts with label night. Show all posts

Saturday, August 27, 2011

Alpenglow and Tentglow

On the way over to Great Basin National Park last week, I grabbed this quick photo of the alpenglow hitting the west side of Wheeler Peak (13,063 feet ASL), partly because the lower line of the pinkish band was hitting the mountain at just about tree line. The pinkish band is sometimes known as the Belt of Venus or antitwilight arch, at least when it is seen in the sky, and the dark purplish blue area below the alpenglow is the Earth's shadow on the mountain. It is sometimes called the dark segment, at least when seen in sky.

If you happen to be standing on a mountain when this pinkish phenomenon is visible to those to the west of you, you will be standing in the pinkish, dying light of the sun, just before it goes below your western horizon (presuming you aren't in Alaska or somewhere very far north or very far south, where the sun doesn't always set in the west, but can set in the north or south, or not set at all). As the pinkish, last light of the sun leaves you on your mountain perch, the terminator will come upon you, you'll be in the twilight zone, and then you will pass into the night (all while standing still).
In this grainier enlargement of the same photo, you can see that the pinkish alpenglow isn't exactly congruent with tree line in all places.
We drove on, to find and set up camp in the dark, at about 9800 feet on the other side of that same mountain.

Recent Great Basin N.P. Blogospherics:
A Park without it's Namesake at Geotripper
We Head Underground in the Great Basin at Geotripper
Great Basin National Park at Nature's Blog
My Backyard - Great Basin NP at WATCH FOR ROCKS

Wednesday, September 29, 2010

In the Dark of the Night


It is so good, after a long day - of work, of computers, of tubular rocks - to lie down knowing that I won't have to get up early in the morning. It is also good, after more than ten days of work in a row, to know that I will have a day of sleeping in, a day of some quiet with a few errands - think: laundry - before a partial day of driving to two nights and two days of mine geology field tripping.

Darkness: at night, I love it!


[posted 20Nov2010 from the Draft folder]

Thursday, December 31, 2009

New Year's Eve 2009

The last photos of 2009, taken on New Year's Eve, 31 Dec 2009.
The last sunset, looking east, with magnificent wave clouds above and behind the Schell Creek and Duck Creek Ranges.
The last sunset, looking west, with our hiking hill barely in view at the bottom of the photo.
The last birds: a couple of juncos braving the cold evening, despite a relatively empty bird feeder.
Certainly not the last icicles of the winter!
The last full moon - a blue moon - not an eclipsed moon in this locale.

Hope you're having a great New Year's Eve. I'm spending mine having a toast or two by myself. It's Friday night on MOH's schedule - that is, it's his last night shift of three, before a couple days off in the middle of his month.

Saturday, November 14, 2009

Late Night Ramblings: From Becke Lines to Mining Scams

Poetic. It's not that I'm feeling poetic, but that word came to mind, so I wrote it down.

I've had the jimmy legs while trying to sleep, so I've opened the window a crack and am drinking a cold dPf while writing in my journal. I'm using a headlamp with a red LED - this has the odd effect of giving the shadow of my moving pen a deep turquoise line on the left side (toward the light) and a deep red line on the right side (away from the light and more or less behind my hand). These colors, and their arrangement around the edges of my pen and hand, remind me first of Becke lines, which surround mineral grains immersed in oils or epoxy media. Then - especially when I turn the pages of this spiral journal - they remind me of 3-D glasses, as if I've somehow entered some supra-dimensional movie. I haven't, though, I'm just writing and wondering where the one-day-late snow is, and whether I have the window cracked too far open for comfort.

(The deep turquoise and deep red lines - which may entirely be optical effects inside my eyes, as I can only see them when the pen shadow or journal moves - has the effect of making this red-lit white paper appear pink to orange to occasionally yellow. It's as though my eyes are trying to convince my brain that I'm using ordinary incandescent lighting.)

And that reminds me - didn't some country just recently outlaw incandescent bulbs? (Actually, several have.) If only the other bulbs worked consistently. I try to buy the most expensive ones in hopes that they will turn out to be the best ones. Hopefully there is enough "byproduct"mercury from the gold mines of the world so we won't have to go back to mining mercury at mercury mines - such as the ones in Spain and Slovenia (Almadén, Idrija) and the ones in the Coast Ranges of California (New Almadén, New Idria). Seeing liquid mercury drip from old trench and pit exposures is something I'd rather not see every day. And, likewise, running across old-looking but still-in-use jars of mercury used for gold extraction by old-timers - whether in some out-of-the-way prospect north of Napa Valley or down some dusty dirt road in the Mojave Desert - is not something I like to come upon unawares or unexpectedly.

The old-timers in question (some of them are still around, perhaps?) are always quite casual about showing you their gold-rich mercury, and they are equally casual about showing you their dusty, disorganized assay labs out in the middle of nowhere. Jars, bottles, and tools of all sorts are scattered on old wooden work benches built against walls - these are their lab tables. From one etched, north-facing window, you have a nice view of the creosote desert and rocky granitic mountains. Want to have lunch in here? (I think not.) And is that an ice chest I see over near the doorway to the main cabin? Yes, the garage-shed assay-lab is attached to the living area of this old field shack. Too many rusted and broken parts, too much dust, and too many old and unknown lab chemicals are lying around loose.

Where did you say you're getting the gold from? Those pinkish brown, fractured granites over there, the ones with the narrow seams of goethitic iron-oxides in either brown carbonate or microcrystalline silica? Veins, you call them? I think I'd be being generous if I called them veinlets. Okay, we'll high-grade just those tiny veinlets, and then we'll see. We'll get back to you after our commercial lab does its thing. (No, you can't do the assays for us. We're already thinking that you got the gold the same place you bought the mercury - maybe in some old Mother Lode mining town?) Maybe we'll be back, and maybe we won't - but no, we won't be looking at your lab anymore, no matter how proud you are of it.

Not to be disparaging about your claims, but though the ankeritic-goethitic veinlets are interesting, they look too narrow and mostly too far apart to be likely to carry the barren granite they're cutting. (Although it's true, they could indicate something at depth, or something underneath that shallow alluvium just over there, right off your claims. But don't worry, we'll still want to lease your claims - if there is anything we want to come back to after we see some real assay numbers.)

(Besides which, old Joe up the road apiece - quite apiece at that - warned us that you were running some kind of scam down here. But maybe he just wants us to lease his claims, not yours. So, we'll see.)

And who was I with, down there in the east-central Mojave? Seems it was in the same area where a small gold mine was operating - the mine that routinely over-loaded their blast holes such that the metal roof of their mine office had dents and holes from large rocks that fell out of the sky every day, rocks blasted out of their small open pit. We ate lunch near the buses, that field trip day, then drove an entire mile away to avoid the coming bombardment.

I don't know what year it was. The location suggests to me that I was there with either PB or NJ - although the sampling part could have been a joint effort with BS and an assistant of his - except I don't think we worked that area with double partners. So the answer may be forever lost in the dirt and dust of that messy lab or in the steep and rocky slopes two canyons over.

Could I find that mine shack again? Maybe. I have a geographic location tucked firmly away in my head - it's a little SSW of that small gold mine, down some wide southerly-heading dirt road, generally SE of that broad, alluvial-choked peak, and in some vague area between or amongst two north-south-trending ranges. Besides which, unless it was on a tiny piece of private land, it's probably gone.

From 12Nov09, 9:33pm

Tuesday, December 2, 2008

Travel to Northwest

I will be/am en route and at the Northwest convention in Reno for the next couple days. I may already be behind on any comments, but will try to stay in touch, and do have mobile reading capability, but do not always have mobile commenting capability (it seems erratic or I just don't get it). Any posts in the next couple days will have been pre-posted.

If any other Geo/Bloggers will be at the meeting, I would probably be able to meet Thursday after the LLLL session or at the evening bash. I'll be there, passing my business cards around to any and all interested parties.

And now, just too tired to do anything but get to sleep!

Saturday, November 1, 2008

A Slow Day?

Is it a slow day? That is the question! To slow, or not to slow...

I'm having a bit of a headache this morning; so far I'm not ready to call it a migraine, but most of my headaches become such by the middle or latter part of the day. Oh, woe is me! :(

I'm also, perhaps, having just the incipient bit of a cold virus, which I will probably fight off by tomorrow, especially since we will be getting to sleep an extra hour, and a recent article has it that fall forward is one of the best things we do for ourselves every year, never mind some recent opinions or bloggish uproar about the article. [And UPDATE - here's another well thought out blog post that explains things in great detail, and also explains why fall-back is a good thing, why spring-forward is a bad thing.] I'm mostly referring to the once-again brouhaha about whether scientific-type bloggers should 1) blog at all, 2) ever dare to state a scientific statement, question, or opinion - reasoned or otherwise - on a blog, or 3) dare to refuse to use a real name, when, as everyone knows, we might have our houses robbed or our persons abused if random internet-type people could actually google us and find where we live and whether we happen to be at home or not. I'm also not stating that the "bloggish uproar" is in any way negative - or positive - I am, at this point, merely noting its recurrent presence. [And P.S. to any internet-type stalkers or creepish types - the Silver Fox has caretakers and guardians, with guns and ammo, posted at all her many and several places of residence, wherever they may be.]

It does seem like a slow day to me. I'm waking up slowly, am drinking coffee slowly, am getting ready (for what?) slowly, am writing slowly, and my head feels like a mass of thick-bedded limestone: gray, thick, and easy to dissolve in cold, dilute hydrochloric acid. In fact, that dissolution may have started sometime in the night while I was sleeping, for all I can tell.

On a less satirical [or facetious?] note: the sunrise was beautiful, the weather warmish for 43oF [note: the little "o" is going to henceforth stand for degrees on this blog, as I've gotten tired of writing out "degrees" and have also gotten tired of going into the html editor and typing the appropriate ascii code for the degree symbol], the clouds heavy and cloudish [note: I will also continue to use such silly, idiotic, or ridiculous made-up words like "cloud-ish," with or without a dash, as is my right as a writer]. It was dark when I walked out the door to get into my truck. [Boo hoo.] Tomorrow morning it won't be so dark, but in a month it will probably be darker. Alaska Al, if he is reading this longish, slowish, braided and meandering blog post, would probably tell me (or you) to toughen up or tough it out - it's been dark in the mornings in Alaska for more days than it has been down here, and they are probably, by now, losing at least 7 minutes of daylight every day.

I'd post a Halloween picture of some sort, but MOH and I didn't manage to do Halloween this year. [Doing Halloween is kind of like doing lunch - it's something you do, and it's optional.] I might post a picture from last year's doings, but I'll have to think about it. It's really a kind of scary - oooooh! - picture!

Saturday, August 16, 2008

Mapping at Night

So, after two days of mapping, it's night, my feet are sore, and I'm trying to go to sleep. And what's going on? Every time I close my eyes, I try to draw outcrops on my map sheet. For some reason, that then wakes me up. Or, I'll be walking around an outcrop taking GPS readings, and my foot steps on a soft bit of earth or a hackly rock, and that wakes me up. It feels so real that I jerk my foot back, which makes my whole body jerk.

Well, time to give it another shot: my 4:30 alarm comes early, even if I do snooze it until 5:00!

Goodnight.