Mystery behind emerald green jade icebergs solved Green icebergs revisited. By Pranjal Mehar - Marc

[Judi Lynn]

Green icebergs revisited.

By Pranjal Mehar - March 9, 2019




File photo: © AGU 100 / Stephen G. Warren, Collin S. Roesler, Richard E. Brandt, Mark Curran
Ice crystals form in supercooled seawater beneath several Antarctic ice shelves as they rise to the ice‐shelf base they scavenge particles from the water and incorporate them into the growing basal ice. Icebergs of marine ice vary in color from blue to green, depending on the nature and abundance of foreign constituents in the seawater that became trapped in the ice as it grew.

Such green jade icebergs have fascinated sailors and explorers for decades. Now, scientists have discovered the origin of their unique hue and revealed their important mission.

Glaciologist Stephen Warren from the University of Washington said, “We always thought green icebergs were just an exotic curiosity, but now we think they may actually be important.



© AGU 100 / Stephen G. Warren, Collin S. Roesler, Richard E. Brandt, Mark Curran

Warren has been studying the phenomenon of jade icebergs for three decades and noticed early on that the green ’bergs were denser than their blue-white counterparts, often without any air pockets whatsoever inside them.

More:
https://www.techexplorist.com/mystery-behind-emerald-green-jade-icebergs-solved/21467/

[MFM008]

1. Beautiful