Geology

You are currently browsing the archive for the Geology category.

This shot here (and above) has found a home here as well.

A few dozen million years ago, in the Eocene — not far back, as geology goes — a large lake covered much of what’s now western Colorado and eastern Utah. A lot of organic muck fell to the bottom, and now that muck is oil. Problem is, it’s locked in shale, and extracting it is no bargain… yet.

If and when it ever gets to be a bargain, look to see some of The West’s prettiest landscape ripped up.

Edge-on, the old lake bed presents itself as the Book Cliffs*, which overlook I-70 for a hundred miles. I took some shots of the region when we drove past them last year. And one of those shots now illustrates this post by Brandon Keim in his Wired blog.

[* My geography and my geology were corrected below in the comments by Ron Schott, a genuine geologist. Brandon Keim wrote about oil shales using my photo. There are oil shales, but not in these Book Cliffs deposits, which are older. The oil shales are in strata above the ones exposed here. Apologies for the errors.]

What we’re presented with here is a set of costs that can only be rationalized in terms that regard the extraction of all the world’s oil as an economic necessity — and nothing else.

I hear arguments for mining oil from places like this and a few memorable lines from the Doors’ “When the music’s over” come to mind:

What have they done to the Earth?
What have they done to our fair sister?
Ravaged and plundered and ripped her and bit her.
Stuck her with knives in the
Side of the dawn and
Tied her with fences and
Dragged her down.

Great song, by the way. Also the one that foreshadowed the demise of Tony Soprano on the penultimate episode of Tony’s show.

Is there foreshadowing here too?

InciWeb just updated 8 minutes ago, with this report:

Fire continued creeping to the north, east, and west with limited movement due to competing wind that kept the fire from making any significant runs. On the south flank significant containment was gained due to the diminishing down canyon winds.

Fire progression continues on the northeast and northwest perimeters. The west perimeter of the fire has progressed into Tecolote Canyon.

Just added a bunch more maps to this photo set.

Tag: sbgapfire.

I’d put more on Twitter, except it isn’t working for me when I go there. 🙁

I’ve loaded too many pictures onto this blog, so for this round I’m going to just point to shots elsewhere: in this case to a photo set of  maps built with .kml files from the MODIS Active Fire Program and Google Earth.

The latest one, from about 6pm this evening, has fewer active hot spots than the previous one from 4am this morning, or the one before that from yesterday afternoon. Not sure how to interpret that, but whatever. It’s data.

This afternoon we took a walk along the beach, where hundreds of families and other social groups had set up homes and kitchens and play areas along the beach and in the park, in preparation for the fireworks tonight. It’s an annual festival, and a lot of fun. There was hardly a sign of the fire, since the wind was mostly onshore.

But this evening the wind shifted, and now we’re getting orange clouds of low smoke and ash fall.

The fire hasn’t stopped the fireworks though. Going next door now for a party. Watch for pictures of that show too.

Tag: sbgapfire.

You fly enough and they bump you up to Business Class whether you want it or not. That’s how United Airlines works, and for most passengers that’s not a bad thing. In my case I often don’t want it because it means giving up a window seat I’ve carefully chosen back in what we used to call Coach.

But that’s what happened last Wednesday, when I flew from Amsterdam to Chicago. I got bumped to an aisle seat in the Business Section. Worse, nearly everybody with a window seat closed their shades. For viewing we might as well have been in the cargo hold.

The “air show” system that displays flight progress on a map was also down, although a couple times I was able to tell where I was with my GPS, which (amazingly) was able to pick up the 4+ satellites required to to quadrangulate our location 38,000 feet over the Earth.

So I knew when we got to Greenland — my favorite place to shoot from on high . I asked my seatmate, who had the window, if she’d mind if I took some pictures of the land below. She said okay, we opened her shade, and that’s how I got these shots here.

The conditions were less than ideal. It’s never good to shoot out the sunny side of a plane in any case, because the direct light illuminates all the scratches, debris depositions and other imperfections in the windows, which are optically awful to begin with. This window was average or worse in those respects, and on this day Greenland was also hazy, with lots of clouds amidst the mountains. Still, I got some decent shots — enough, at least, to slake my thirst for geographic and geological spectacle and knowledge-building.

I took more shots a bit later, after we crossed the white expanse of Greenland’s middle (at just above the 63rd parallel, which is just 3 degrees south of the Arctic Circle), but need to work instead. Meanwhile, if any Flickr freaks want to help me name some of the mountains, glaciers and other features I shot in that series (or any of the others), please do. I found a few details on Google Earth and filled them in.

The caption for the above reads,

The water body is a glacial bay called Norrivig. Behind it is an island in the midst of which is “Azimuthbjerg” lat=63.4333333, lon=-41.6666667. Here is NotSoGreen on the same area, which also points to this Jason Sloan photo on Flickr. This is all in the Tunu or East Greenland, one of four large Greenland counties, or administrative districts. East Greenland is known natively as Ostgrönland. The glacier or gletcher emptying into Norrivig Bay is Thrym. The mouintain beyond is Hvidbjørn Bjerg, at
N 63° 31′ 0” W 41° 49′ 0”, or 63.51667 / -41.81667, with GeoNameId : 3423410.

Hope that helps the curious find out more.

If you’re interested in Greenland — and I would highly recommend it, because it’s not only beautiful but melting — check out NotSoGreen. Wonderful service.

Shot this series of pictures, mostly of islands in Boston Harbor, while ascending to the skies out of Logan on Sunday, en route to San Francisco. The one above is Rainsford Island. (And my shot is a lot prettier than the one at that last link, on Wikipedia. They can use it if they like.)

Like many islands and hills in the Boston area, Rainsford is a drumlin or two. Given its shape, I’d call it Fish Island.

Got a lot more pictures from that trip, but they’ll have to wait. Meanwhile, here’s a slide show from the last cross-country trip.

To get (and stay) in shape, I’ve been spending more time off-grid. Less blogging and twittering, more time communing with nature. Some of that time I’m not indulging my curiousities. Or at least I’m resisting them. No electronics, for example. It was on one of those walks that I became curious about the story of infrastructure, past and present. What were these metal plates doing in the ground? Why were they there? Why were there so many of them? What were their different purposes? Which ones were remnants of services or companies no longer in existence? Which ones had found new uses? Why do so many carry the signatures of companies and utilities long dead?

I started on the Minuteman Bikeway, which passes close to our home not far from Harvard, where I’m headquartered these days. With a minimal slope, it’s perfect for active but low-stress strolling or biking. And it connects a lot of interesting historic sites. At one end is the Alewife “T” stop on the Red Line subway. At the other is something in Belmont I haven’t reached yet, because I usually go only as far as Lexington. Most of the stretch runs through Arlington, which combines the former villages of West Cambridge and Menotony. This is roughly the path along which the British soldiers retreated from Lexington on April 19, 1775, losing men (mostly boys, actually) and killing colonials of many ages. Thus started the Revolutionary War.

The Middlesex Central Railroad was born in 1846 and died in 1982. Part of it was better known as the Lexington and West Cambridge Railroad. It began as a vein of commerce, carrying goods from mills and ponds along its path. The Earth was colder in the early days of the railroad, and the winters were longer. Ice cut from Spy Pond was shipped all over the world from docks in Boston. This past winter the pond was thick enough to support skating for about three days.

But I’ve become more interested in the infrastructure story. So, over the last couple weeks, as Spring breaks out along the trail, I’ve been shooting pictures, mostly of stuff on the ground, before it gets haired over with vegetation, in faith that patterns will start making sense to me. I’ve also shot a lot around Cambridge, Boston and other places, but haven’t put those up yet. Right now I’m adding descriptions to the photos in this set here.

This is part of a long-term project, methinks. We’ll see how it goes. If you’re interested in following the same threads, tell me in the comments below.

Clicking on the picture above will take you on a slideshow tour of the Grand Canyon, shot from the right side of an LAX-bound 757 that departed from Boston. I have no idea what movie was showing at the time; though I do know I refused, as I usually do, to close my windowshade to reduce ambient light on the ancient crappy ceiling-mounted TV screens. The scene outside upstaged the movie in any case, as it has been doing for the last several million years, as the Kaibab Plateau has pushed its dome upward and the Colorado has stayed roughly where it had been since the many millions of years before that, when it wandered lazily across a flat plain.

As ranking canyons go, the Grand Canyon is almost too grand. It’s freaking huge. From the air I find it far more dramatic to peer down into its narrower regions, such as the one above, which is early in the Colorado’s course through the canyon. The series follows the canyon from east to west, from not far below Glen Canyon dam and the Vermillion Cliffs area to Vulcan’s Throne and Lava Falls, where relatively recent flows have slopped their blackness down across the canyon’s iconic layer-cake strata.

What is most amazing to me about this corner of The West is that it was obviously placid through so many time stretches across the last almost two billion years. The West is painted with the colors of long periods of relative quiet, as sands and silts and gravel and cobbles were deposited by braided rivers and transgressing seas.

All of the Grand Canyon’s strata were laid down before the age of dinosaurs. Younger layers such as those comprising the Vermillion Cliffs to the East, the Grand Staircase upstream in the Glenn Canyon area, in Canyonlands, Arches, and most of Utah’s most colorful layer-cake displays — Bryce, Zion, Capitol Reef, Cedar Breaks, San Rafael Reef and Swell — are comprised of younger rock eroded off the top of the Kaibab Plateau.

Some of the shots were taken with my Canon 30d, and others with my tiny PowerShot 850. which does a better job of shooting straight down through the window. Its smaller lens distorts less through the plane’s multiple layers of bad glass and plastic windows. And the display on the back lets me shoot without looking through an eyepiece. It’s not perfect, but not bad, either.

I still miss my Nikon Coolpix 5700, which took lots of great pictures out plane windows, and was frankly much better at that job than the Canon, mostly because the Coolpix’ objective lens was smaller (again, better for looking at angles through the terrible optics of plane windows), and partly because the camera’s flip-out viewer allowed me to hold the camera to the window at angles I could not put my face, but where I could still see and frame the view.

The only reason to close state geography data is to protect a few existing monopoly businesses.

Making that data available to the public is a good idea in any case. But the big pro-business reason is that it makes countless businesses possible. Remember the world without GPS? The world with it is better. For countless businesses, as well as ordinary citizens. Geodata should be a rising tide that lifts all boats.

When pro-business means pro-monopoly, something is wrong.

Thanks to Tara for the pointer.

Got some nice pictures of the Cornwall Coast, while still ascending out of Heathrow en route to Washington and Boston.

The shot above is of Padstow Bay, with Trebetherick and the Polzeaths on the right, above Padstow and Daymer Bays. (The latter is the lower, or southern, one.)

Interesting to see how the surf hits the Polzeaths at full force. Some pretty big waves there. You can also see the corduroy surface of the ocean, as the waves advance from a swell coming in from the west.

« Older entries § Newer entries »