Major Decisions: Geology

At SUU we provide innovative and relevant education Choosing a major is a first step. I'm Scott Wyatt, president of Southern Utah University. This series of spotlights will allow you to meet and hear from professors who have found their passion and teach it every day. Who do we have with us, Ellen? This is Spotlight on Geology with Dr. Johnny MacLean. Thank you so much for being with us today. Thanks for having me! So tell me what you love about your field. Well, geology is the study of how the earth changes and so I love getting outside […]

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TIMELAPSE OF THE ENTIRE UNIVERSE

We are going on a trip This video depicts every 13 billion years of time on a 10-minute scale – from the biggest blast to today. Every second that passes represents 22 million years. On this scale, humans only appear in the last split second The universe starts at 5, The universe starts at 4, The universe starts at 3, The universe starts at 2, The universe starts at 1, Event: The Big Bang Event: first star From the primitive gas cloud and cosmic dust, Gravitated stars. Event: first star formation Event: create the first galaxy Gravity binds star systems […]

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6 Times Scientists Radically Misunderstood the World

[ ♪ Intro ] Science is a process filled with trial and error. Which means we don’t always get it right the first time. In hindsight, some of the working theories in any scientific field — from biology, to geology, to chemistry, to astronomy — might seem a little ridiculous. And some have definitely been more ridiculous than others. So here are 6 ways scientists radically misunderstood the world in their attempts to figure out how it works. “Where do babies come from?” is an age-old question. For some animals, that answer was fairly obvious. But tiny creatures like worms, […]

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What is a Sedimentary Rock?

In this video we're going to be talking about sedimentary rocks. Please make sure to have [your] rock's flowchart ready as we're going to be filling in another portion of it today. Let's get started. Of course, as I mentioned, we're talking about sedimentary rocks, the second in a variety of rocks in our rocks chapter. Please recall that rocks are classified according to the way in which they formed. So, for example, igneous rocks formed from the cooling and solidification of Magma or Lava. Now, sedimentary rocks form in an entirely different way, which I'd like to describe now. […]

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Iceland Geology #1 – What 5 Volcanoes are Ready for Eruption

Welcome to this new topic of this Icelandic channel but scientist have recently informed Icelanders that we have 5 volcanoes ready for eruption What volcanoes are we talking about, how dangerous are they and will they effect the rest of Europe or the whole world My name is Gylfi and I will be your guide for today in order to lead you trough those questions and I will add useful links below in the same timeline as the video runs since it's plenty of material online. This is first and foremost a simplified overview and hopefully a useful beginners guide […]

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Geology/Oceanography 2 (Plate Tectonics)

Hey guys, welcome back! Today we're going to be talking about Plate Tectonics. Plate Tectonics is one of the most important concepts in all of geology to understand. If you don't understand Plate Tectonics, then a lot of the rest of the course is going to be a little difficult to grasp. So make sure that you pay close attention, and if you have any questions please contact me either on the discussion board or by email. Let's just jump right in then. Plate tectonics was first proposed by a German scientist named Alfred Wegener in 1912. He didn't call […]

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Conglomerate (geology)

conglomerate is a coarse-grained clastic sedimentary rock that is composed of a substantial fraction of rounded to sub-angular gravel sized clasts for example granules pebbles cobbles and boulders larger than 2 millimeters in diameter conglomerates formed by the consolidation and lithification of gravel conglomerates typically contain finer grained sediment for example either sand silt clay or combination of them called matrix by geologists filling their interstices and are often cemented by calcium carbonate iron oxide silica or hardened clay the size and composition of the gravel size fraction of a conglomerate may or may not vary in composition sorting and […]

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The Whole Saga of the Supercontinents

By now, you’ve surely picked up on the idea that the study of natural history is basically the study of how the world has changed. The study of how we all got here. And of course, the world continues to change, all the time. I mean, literally. I’m not just talking about how life adapts, or how the climate is changing. I mean the planet itself, as an object, is in a constant state of flux — because the ground beneath your feet is always moving. So, the place where you are right now was not always … there. For […]

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Can We Get DNA From Fossils?

More than 120 million years ago, in a hot, conifer-filled forest in what’s now India, a small insect made a terrible mistake. While searching for a tasty meal of pine pollen it wandered one step too far, only to find itself trapped in sticky, yellow resin. Tired from its flight, this small weevil was quickly entombed in the fragrant yellow material, which eventually became the substance we know today as Amber. Then, in 1993, scientists cracked open this very same piece of amber. They took the body of the weevil, and they sampled its DNA. Now, this is not a […]

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A Brief Introduction to Minerals

Hi, everyone in this video. We’re going to be talking about Minerals, so let’s get started What are minerals anyway well in the simplest sense of the term minerals are the building blocks of rocks? Here’s a rock. This is a piece of the igneous rock called granite if you look carefully at this chunk of granite You’ll see all sorts of speckles of Gray and white and black and if you in You’ll see that these are crystals mineral crystals this particular piece granite has the mineral quartz Biotite Mica and Plagioclase feldspar We’ll study these more detail later […]

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