Story Comments
Posted by: Isoparm 1 year, 8 months ago
This page is a permanent archive of the comment below and its replies.
To view this comment in the context of the full discussion for the story, use this link.
-
-
Neutral
Klarissa1 year, 8 months ago
This comment is below the standard viewing threshold View It »
Volcano, Not Global Warming Effects, May be Melting an Antarctic Glacier, January 21, 2008
Scientists have discovered a layer of volcanic ash and glass shards in Antarctica, evidence of an old eruption by a still active volcano that researchers believe may be contributing to the thinning of Antarctic glacial ice.
Hugh F.J. Corr and David G. Vaughan, two scientists with the British Antarctic Survey, recently published their discovery of the volcanic layer in the journal Nature Geoscience. The discovery is unique according to Dr. Vaughan. He said "This is the first time we have seen a volcano beneath the ice sheet punch a hole through the ice sheet."
The volcano's heat could possibly be melting and thinning the ice and raising the speed of the Pine Island Glacier in West Antarctica.
Reply-
Neutral
Klarissa1 year, 8 months ago
This comment is below the standard viewing threshold View It »
The thickness of the ice above the layer mean that the scientists could date it to roughly 200 B.C., plus or minus 240 years or so. But the researchers think they can narrow it down more than that. From previous examinations of ice cores, they knew that a volcano had erupted in Antarctica some time around 325 B.C., although they had not known where the eruption had happened. Dr. Vaughan said: "We're fairly confident this is the same eruption."
Source: New York Times
Reply
-
-
loading ...
Eagle_Eye
Obaku
Post Reply
You are not signed in to Propeller.com. Please sign in to post a reply.