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Results tagged “geology” from 60 Second Science

Geologists propose new time period named for humans; Humankind: 'We're #1!'

2aedc_fan2.jpg Everyone has their favorite period in geologic history: The Mesozoic is popular with the ladies, Ordovician is an all-around nice dude and Triassic, Jurassic, and Cretaceous are pretty cool if you can ever get them to stop hanging out with one another (which is like, never). Remember that one time Pleistocene came over to Precambrian's party and yakked in the sink after all those Jaegerbombs? Classic — I love that guy.

It's time to welcome a new epoch to the party: A group of geologists have proposed naming a new epoch, the Anthropocene, after humans. The period would encompass the last 200 years or so, and the geologists think the move is appropriate "because during the past 2 centuries, human activity has become the primary driver of most of the major changes in Earth's topography and climate."

Each geological epoch earns a name based on the characteristics found in the stratigraphic layers of rock found during the designated time period. The Carboniferous, for instance, is so named because of the vast deposits of coal that formed upon the compression of that periods wide-ranging swamps and bogs. The Anthropocene will similarly reflect humans' impact on that stratification — hopefully in the way we've altered the physical and chemical nature of ocean sediments, ice cores, and surface deposits rather than, say, Heidi and Spencer's pointless alteration of the pop cultural landscape.

Of course, Rosie O'Donnell's footprints might represent a dovetailing of the two.

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Moving Waters May Still Be Muddy [podcast]

Today's 60 Second Science Podcast is brought to you by Muddy Waters, natch:

Moving Waters May Still Be Muddy

Full transcript after the jump...

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'Excrement of the gods': 20 things you didn't know about gold

2db28_prospector.jpg Back when I used to prospect for gold in my handsome youth (pictured), I always told my fellow golddiggers Scrappy Pete, Fartin' Jim and Paris Hilton that the ocean floor had vast reservoirs of the color, and that's where we should be diggin'. They never believed me, but this list of the top "20 Things You Didn't Know About Gold" from Discover renders my hunch true, along with plenty of other factoids relating to everyone's favorite shiny metal.

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Supervolcanic time bomb (aka Yellowstone) has side benefit: keeping US safe from earthquakes

Yes, the supermassive magma plume beneath Yellowstone National Park is overdue for an eruption, which would dump inches of ash over the entire continent, plunge the globe into a decade-long nuclear winter, and kill a billion people. But that's a small risk to run in return for its real value: keeping the Pacific Northwest earthquake-free.

Beneath Washington and Oregon, the Pacific oceanic crust is crunching into and under the North American continent -- which should result in enough seismic chaos to prevent people from stacking two Legos on top of each other, much less building a worldwide coffee empire. Luckily, the so-called "Yellowstone plume" acts like earth's own Astroglide, lubing up the tectonic plates and ensuring the world's continued access to Pumpkin Spice Lattes.

[via New Scientist]

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