OPEN THREAD 20200101

Basically, all legal free speech is allowed. We will assist the authorities in dealing with illegal speech. You are each other’s moderators. Have fun. And don’t forget to MAGA at nuclear levels.

Citizen U

Day 56 – BARIUM.

16 thoughts on “OPEN THREAD 20200101

  1. It’s quite unusual be at home on a holiday, playing “elemental word association” with your friends, and encounter one where the first association is “enema”.

    But here we are…..

    Liked by 1 person

  2. Apparently, barium got the name it did from the weight of the ore it was found in.

    Which is funny, because it’s not particularly heavy stuff, 3.51 times as heavy as water; about average for a surface rock. (The average over the entire earth, iron core included, is 5.5.)

    Liked by 1 person

  3. Barium was discovered by Sir Humphrey Davy. In 1807, he isolated potassium and sodium…..then rolled into 1808, when he isolated calcium, strontium, barium, magnesium, and boron. Considering how many people never get credit for discovering a single element, discovering five in one year seems like Just. Showing. Off.

    Then, again, there is no element named “davium”…..[*ahem, atomic number 106*].

    Liked by 2 people

  4. There is a very rare blue fluorescent gemstone, benitoite, which was discovered near the San Benito River in California. It has been named the official state gemstone for the state. Its chemical formula is BaTiSi3O9.

    Liked by 1 person

  5. California is essentially one large playground for geologists. There are two large scale geological processes that dominate the state, they’ve been going-on for a while, and they’ll be going-on for a while to come. Both involve the movement of tectonic plates

    The first is the gradual drift between the North American Plate and the Pacific Plate. This is famously evidenced by the San Andreas Fault, but that is merely a symptom of a larger dynamic. Simply put, the entire edge of the Pacific Plate is headed northward compared to the North American Plate.

    The second process is subduction — where one plate is shoved underneath another one. Pieces of the one going under can refuse to go under and instead stick to leading edge of the upper plate. Some pieces of the lower plate might rapidly melt and bubble to the surface as volcanoes. In one example, the Nevadan Orogeny, a plate known as the Tiburon Plate was shoved under California. Its far edge is now under Yosemite, and there is just a little bit left offshore (now called the Juan de Fuca Plate). This happened relatively quickly (in about 10 million years) about 150 million years ago and must have been great fun.

    Here’s a very short video —

    Liked by 3 people

    1. Geologists consider the Juan de Fuca plate to be part of the old Farallon plate, most of which is long gone. The other two remaining pieces of it are the Cocos plate near Central America, and the Nazca plate by South America.

      The join between the Farallon and whatever was east of IT is now under Yellowstone. It was probably a mid-oceanic ridge, and, even though it’s buried under North America, it’s still spreading and magma is still welling up through it. A bit of that upwell is what drives Yellowstone.

      If you look at a relief map of Idaho, you can see a hundred mile wide trench dug through the mountains, towards Yellowstone. That’s actually the mark of the continent being dragged over the Yellowstone “hot spot”. The trapped granitic magma builds up pressure and every couple of years or so there’s a KABOOM that wipes out a hundred miles of mountains. THAT, my friends, isn’t just a volcano, it’s a supervolcano.

      If Yellowstone decides NOW is the time, I want to be in New Zealand for the festivities.

      Liked by 1 person

  6. More subduction video —

    Maybe there needs to be a more comprehensive video — “The Art of Subduction”. “Oh, baby, baby — slide right on under me……it’ll get you hot.”

    Liked by 3 people

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