A rift event set off a domino effect of geologic processes that created conditions ripe for Antarctica’s glaciation, a new study suggests.
paleoclimatology & paleoceanography
Iceberg Scours Reveal Ancient Wind Patterns
Scour marks left by icebergs that ran aground thousands of years ago record the winds blowing off the Laurentide Ice Sheet.
Mongolian Mountains Rose When the Crust Bounced Back
A plate folded, the lithosphere sank, and up popped a mountain range.
Widening Channels and Westerly Winds Together Formed Earth’s Strongest Current
The Antarctic Circumpolar Current could only develop once wind patterns aligned with new ocean passages 34 million years ago, a new study suggests.
Introducing the New EIC of Paleoceanography and Paleoclimatology
We are delighted to announce that Sarah Feakins has just taken over as Editor-in-Chief of Paleoceanography and Paleoclimatology.
The AMOC of the Ice Age Was Warmer Than Once Thought
An analysis of sediment cores indicates that North Atlantic waters were relatively warm and continued to circulate even under major climate stress during the Last Glacial Maximum.
Snowball Earth’s Liquid Seas Dipped Way Below Freezing
Iron isotopes show that salty seawater pockets beneath the ice were as cold as −15°C.
How the Rise of a Salty Blob Led to the Fall of the Last Ice Age
Scientists have long suspected that high salinity levels in the deep ocean were responsible for keeping carbon dioxide locked away during the last ice age. New research finds the strongest evidence yet.
Successful Liquid Lake Conditions in a Cold Martian Paleoclimate
Simulations from a new lake model explain how liquid water could have been maintained over Mars in a cold climate, thus resolving a critical scientific gap in our understanding of Mars’ early history.
How a Move to the Shallows 300,000 Years Ago Drove a Phytoplankton Bloom
And what that could mean for today’s ocean.
