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The fascinating, awe inspiring, beer drinking world influenced by the earths oldest science. This blog is about all things geology. Landmarks, minerals, sedimentary deposition, pretty pictures, and humor all fall into this category. If you ever have questions dealing with your labs or you homeworks, ask. I will be able to find you the answer if I don’t know it off the top of my head. Also, send me links and I will give you credit. geologyrocks.tumblr.com/ask
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added on 11.04.2010 - 15:21:37 from bookmarkfavorit
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https://geologyrocks.tumblr.com/
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Latest News
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mewpre:
Natural Bridge Trip (2/2)
After seeing the Natural Bridge, we went to the Caverns at Natural Bridge (creative name is creative).
While waiting for the tour to start, I looked around in the gift shop, which had a collection of rocks, minerals, and all that jazz. I love stores like this because they’re like geology museums where you can touch and/or buy all the exhibits! Even though I couldn’t afford any the ones I liked, it’s still fun to think I COULD purchase them. I’m weird like that.
My favorite was probably the Labradorite (second picture). It had this really cool internal shine that made it look like it was glowing from the inside.
And then, it was time for the tour! Though I’ve been to more impressive caverns, it’s always really neat to see all the rock formations and stuff. Maybe I should have been a geologist instead. Oh well.
Given that the admission was almost as much as at the Natural Bridge, we’d probably not come see the caverns again. But at least we can say we saw them.
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03.07.2014 - 19:30:25
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https://geologyrocks.tumblr.com/post/90672554246
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rocksandants:
Humans will now be forever inscribed into the Earth’s geological history. Our everlasting signature? Plastic-infused stones. The newly identified stone, according to a report from The Geological Society of America, has been officially named plastiglomerate. It is formed when plastic trash melts and fuses together with natural materials such as basaltic lava fragments, sand, shells, wood and coral, resulting in a plastic-rock hybrid. Researchers say the new material is likely to last a very long time, possibly becoming a permanent marker in Earth’s geologic record. In the photo above: An example of clastic plastiglomerate found on Kamilo Beach. Clastic type is a combination of “basalt, coral, shells, and local woody debris” that are “cemented with grains of sand in a plastic matrix.” (via Plastiglomerate: The New And Horrible Way Humans Are Leaving Their Mark On The Planet)
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03.07.2014 - 16:15:21
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https://geologyrocks.tumblr.com/post/90658439560
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thegemstoneco:
Check out the crazy patterns on these Seraphinite tumbled stones! www.thegemstoneco.com #gemstone #crystal #beauty #nature #seraphinite #rock #geology #nofilter
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02.07.2014 - 22:45:22
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https://geologyrocks.tumblr.com/post/90587697436
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earthstory:
Geologic ClockIt really is hard to fathom the scale of geologic time. The recent TV series “Cosmos” used one favorite trick, compressing the history of the universe into a single calendar year. This graphic is a different setup, showing the age of the Earth on the face of a clock.If we tried to picture how long our lives are on a geologic timeline, the bit of the planet’s history that we occupy barely registers. The Earth is right around 4.56 billion years old. If that length of time were compressed into 12 hours, then each second on the clock face would represent over 100,000 years.1 second ago on this clock face was during the start of the last glaciation. During that last second, 90,000 years of glaciation and the rise of the entire human civilization took place.Many of the major events in evolution are shown on this clock. The appearances of land plants, land animals, animals in the oceans with hard parts, and multicellular life all are shown. There Yesterday, we referred to an era of time in the Precambrian covering nearly a billion years; that is ¼ of this clock. Even geologists are used to thinking of time periods like the Cambrian as a long time ago, but the last 540 million years is but 10% of this clock, equivalent to an hour and 20 minutes.Some quibbles could be taken with exactly where the dates are hung on this clock, but the mental exercise of comparing all of human civilization taking place in a tenth of a second is hopefully an interesting way to think about geologic time.-JBBImage credit: (public domain label):http://en.wikipedia.org/?title=Talk%3AGeologic_Timescale#mediaviewer/File:Geologic_clock.jpgYesterday’s post:https://www.facebook.com/photo.php?fbid=706357562758624
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02.07.2014 - 19:30:11
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https://geologyrocks.tumblr.com/post/90571129880
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mapsontheweb:
Age of oceanic crust
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02.07.2014 - 16:15:31
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https://geologyrocks.tumblr.com/post/90557015124
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lizardskizardjesuswizard:
labradorite
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01.07.2014 - 22:45:15
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https://geologyrocks.tumblr.com/post/90486902760
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skeptv:
Fields of Thought
Collections-based research involves a wide variety of people interested in vastly different scales of space and time—from population genetics in mice to global climate change to galaxies across the universe.
…To date, no natural history collection has an entire galaxy inside of its collection cabinets. However, for astrophysicists to model the universe, meteorite collections can deliver useful snapshots of the history of our own galaxy — meteorites.fieldmuseum.org/node/8
A primary aim of today’s natural history collections is to offer such glimpses of the past. Those glimpses show us not only what the world was like in the past, but also how researchers in the past looked at the world. It can be hard to know how to bring together all of those scales of space, time, and perspective, but variation itself is a common thread for natural history collections and the collaborators working across them.
via The Field Museum.
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01.07.2014 - 19:30:50
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https://geologyrocks.tumblr.com/post/90470505241
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01.07.2014 - 16:15:14
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https://geologyrocks.tumblr.com/post/90456051152
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