-
Article
Periodic changes in the Cretaceous ocean and climate caused by marine redox see-saw
Periodic changes in sediment composition are usually ascribed to insolation forcing controlled by Earth’s orbital parameters. During the Cretaceous Thermal Maximum at 97–91 Myr ago (Ma), a 37–50-kyr-long cycle...
-
Article
The impact of ocean deoxygenation on iron release from continental margin sediments
Bioavailable iron is released from anoxic sediments, such as those that underlie the Peruvian upwelling zone. Analyses of iron levels in sediments from this region suggest that iron release occurs in a relativ...
-
Article
Active mud volcanoes on the upper slope of the western Nile deep-sea fan—first results from the P362/2 cruise of R/V Poseidon
In February 2008, cruise P362/2 was undertaken aboard R/V Poseidon to the Giza and North Alex mud volcanoes (MVs) on the upper slope of the western Nile deep-sea fan. Emitted fluids were strongly depleted in chlo...