4 weeks 3 days
Expedition 342 Paleogene Newfoundland Sediment Drifts
No public posts in this group. You must login and become a member in order to post messages, and view any private posts.
June 2, 2012 – August 1, 2012
St. George, Bermuda to St. John’s, Newfoundland
Co-Chief Scientists: Richard Norris (Scripps Institution of Oceanography, USA) & Paul Wilson (National Oceanographic Centre, UK)
Expedition Project Manager/Staff Scientist: Peter Blum (IODP USA)
Education Officer: Caitlin Scully (Scripps Institution of Oceanography, USA)
In 1912 the Titanic collided with an iceberg in the frigid waters of the North Atlantic. Now, 100 years later, Expedition 342 strives to discover past climate conditions that led to the Arctic ice that sank the unsinkable.
Today, the Titanic rests on a bed of sediment that was deposited after the dinosaurs went extinct 65 million years ago. The JOIDES Resolution will pass the Titanic to collect samples from the Paleogene (65-23 million years ago), a time when global climate was in a state of change.
It began with a period of extreme warmth known as the Paleocene-Eocene Thermal Maximum (the PETM). High temperatures and warm oceans created a “hothouse earth.” The planet got so hot, so quickly, that life was profoundly changed. Plants flourished in the warm humid environment. Forests and swamps extended to the poles because there was little to no ice on the planet. On land, mammals thrived and the first whales, horses, and primates appeared. In contrast, the warming oceans experienced changing currents and a mass extinction of plankton in the deep sea.
As millions of years passed, plate tectonics shifted the continents. As the land moved, so did the ocean currents. These new and changing ocean currents helped to cool the seas and eventually the planet. After the PETM, the cooling planet was interrupted by many more periods of warmth, yet none had the same profound global effects.
The sediment being collected on Expedition 342 records Paleogene changes in both global climate as well as shifting ocean currents. These sediments act as an archive. By studying the chemistry and fossils within sediment samples, the Expedition 342 science party will be able to recreate the ice-free “hothouse earth” of the PETM, the subsequent cooling of the planet, and the eventual creation of Arctic sea ice – the very ice that sank the unsinkable Titanic.
Check out the Expedition 342 Photos and Videos!
Request a live ship-to-shore video broadcast here!
Who is Onboard for Expedition 342?
The map shows the "home ports" of the international science crew of Expedition 342 in BLUE and the drilling locations in GREEN! Click below for an interactive version and see how close we really are to the wreck of the Titanic.
- Quick video about ocean driling and climate change
- “Hothouse Earth” National Geographic article describing the PETM
- What was it like living during the Paleogene? Check out it’s three epochs: