[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index][Subject Index][Author Index]
Mega eruption may have wiped out [Cambrian] life
Mega eruption may have wiped out life
Larry O'Hanlon, Discovery News, Monday, 26 June 2006
Scattered rafts of black lava over northern and central Australia are
really part of one gigantic volcanic field that appears to be one of
oldest and largest on Earth, geologists believe.
If so, the half billion year old eruption might be the culprit in the
first mass animal extinction event in the history of life.
Australian geologists used the chemical signatures of the far-flung
basalt lava rocks and their ages to connect them to a single huge
volcanic eruptive episode between 505 and 508 million years ago...
GIS / Archaeologist http://heretichides.soffiles.com
Melbourne, Australia http://www.geocities.com/dannsdinosaurs