Moving Off the Ophiolite Standard

The Galapagos
Click on the image above for  the lovely details
Source: Google Earth

Another of ma belle soeur's is Barbara (Bobbie) John. Bobbie is a research geologist who teaches at the University of Wyoming. Over the Thanksgiving holiday, she chatted with me about her upcoming cruise. We're not talking kicking back with a Mai Tai on the Lido Deck, and checking out the action in the deep end of the pool. At the end of this quarter, Bobbie's going to head off on a jaunt aboard the Joides Resolution to study the action a good ways down beneath the ocean waves.

Out there on the Cocos Plate, west of the Galapagos there's a V-shaped ridge known as Hess Deep. The Deep is a crack under the ocean. Once aboard the ship, Bobbie and the rest of the gang will be drilling a hole down into Hess Deep, and recovering the rock (which at that point will be known as drill core) that comes back up in the drill rod to see what they've found.

How far will y'all be a' drillin' Bobbie? 

OK...we're drill at approx 4872 m below sea level....so  roughly 15980 feet or nearly 1500 feet deeper than Mt Whitney is above sea level (if that helps).  This depth is likely not totally accurate as we have to find a drill site and then go for it...will keep you updated as we go. 

Adios.

Bobbie

And why bother?

Because the current model research scientists have of what lies below the ocean crust in the Cocos plate, is based on rocks transported far from their origin onto remote continents, by tectonic forces (plate tectonic uplift). Geologists refer to these ancient assembleges as ophiolites. Ain't that a beautiful name? 

On this trip, the folks on the Joides Resolution want to see the fresh stuff. They are planning to get a more accurate picture of what lies under the ocean right there, right now, in situ. 

Check Out Hess Deep
by Clicking on the Image above
A V-Shaped Crack in the Bathysphere
West of the Galapagos

Fairy Houses

Click on the image above
For a close-up view of the lands where the Fairy Folk Dwell

Fairy housing beats ours hands down. The fay folk are the green construction originals when it comes to environmentally 

conscientious

 developments.

• Pefectly permeable pavement - no challenge to the aquifer!
• Edible totally organic roofs and walls reduce the cost of transporting food to the home
• High-efficiency, non-fueled solar lighting
• Totally compostable buildings lead to no-waste, no environmental impact

Hawks Ahead - Hiking Edgewood

My Kind of Study Break

A Red-Tail Hawk, I think.

Using my low-level cell phone camera, and was I glad I had it.

I'd been focusing on learning about what triggers mass wasting. She was focusing on finding supper.  I think she missed out on her opportunity, as I came around the corner feet away from her in the grass, wrestling with something small and ground-dwelling.


What a reward for studious effort.

Adenostoma fasciculatum - Looking a little seedy ain't yah?

Please click on the illustration above to fully enjoy this beauty

Adenostoma fasciculatum
Chamise graces the chaparral at Edgewood Park

Are you a Celebrant of National Pie-For-Breakfast Day?

Happy National Pie-For-Breaksfast-Day for those of us in the U.S. This fine holiday, of historic national importance, was created by ma Belle Seour Kathy John A merry holiday to all!

Edgewood Shale Once an Ocean?

Edgewood Shale, The ultimate in Time Travel
Ancient Muds Tells Us Still Waters Once Lay Deep Here

Cascades Ahead, Juan de Fuca Plate Off the Port Bow

Click on the illustration above 

to get up close and personal with this Cascadian view

Crater Lake was the first big stop on our recent trip into the Cascades.  It was also my first good long view of a range of mountains that first shoots up in my home state of California and dances all the way along through Oregon, Washington and into British Columbia.

The volcanic nature of many of these mountain peaks are all the fault of that boisterous Juan de Fuca plate. Or, if you prefer, you can blame it on Juan's kin, the troublesome North American plate. Skimming along towards each other atop the earth's mantle, at the rate of a couple of centimeters a year, both are headed on a disaster course.

As little Juan continues to converge into that big ole North American plate, watch out! Being more dense (of course since he's an oceanic plate) Juanito is just making trouble for himself. He's getting subducted under his bigger continental cousin. You'd think those oceanic plates would have figured out by now, that's the way the laws of plate tectonics work. But those kids never seem to learn!