krakatau walk

Home » Uncategorized » Whirlwinds of crystals called gravel devils spotted in Andes Mountains – SCIENCE NEWS

Whirlwinds of crystals called gravel devils spotted in Andes Mountains – SCIENCE NEWS

Whirlwinds of crystals called gravel devils spotted in Andes Mountains – SCIENCE NEWS
andesmountain12 APRIL 2017. Towering, crystal-filled twisters periodically swirl in a valley nestled between two volcanoes in the Andes Mountains, newly reported observations show. The odd weather events are the first record of large pieces of gravel efficiently moving across a landscape by suspension in air.
Geologist Kathleen Benison of West Virginia University in Morgantown spotted the whirlwinds during an expedition in 2007 to an otherworldly region of northern Chile. There, gypsum crystals form from evaporating volcanic pools of salty, acidic water. When the pools dry, exposing the crystals within, whirlwinds as big as half a kilometer across can sweep the crystals aloft, Benison reports online March 15 in Geology. She saw storms of crystals travel as far as five kilometers before dropping their payloads into large, dunelike piles.
Over time the far-flung crystals, some as long as 27 centimeters (which geologists still classify as gravel), meld together into a massive hunk. If found in the rock record, such crystal conglomerations could help geologists identify where strong whirlwinds howled long ago, Benison proposes.
IMAGE: CRYSTAL SWIRL Swirling winds in the Andes Mountains can carry gypsum crystals several kilometers before dumping them in large piles.
https://www.sciencenews.org/…/whirlwinds-crystals-called-gr…

Advertisements

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s

contact us

Carita Beach Pandeglang Banten Indonesia 42264 Mobile: +62 852 8424 6061 Whatsapp: +62 896 3543 4671