Diagenetic dynamics and signals within Earthquake-mobilised sediments (Japan Trench, IODP Expedition 386)
Lead Research Organisation:
University of Leeds
Department Name: School of Earth and Environment
Abstract
Seafloor deposits on the slope offshore Japan can become remobilised by large Earthquakes, and can then end up in the deep trench that is the ultimate site of deposition. Therefore, studying the chemical composition of these Earthquake-related mud layers can eventually help to reconstruct the past dynamics and ferocity of Earthquakes in Japan over the last tens of thousands of years. In addition, these trench sediments are highly efficient at burying carbon away from the atmosphere, and can therefore contribute significantly to storing CO2 fixed as biomass for vert long time periods, helping to balance the continuous addition of this greenhouse gas to the atmosphere by human activity.
Organisations
People |
ORCID iD |
| Robert Newton (Principal Investigator) |
| Description | The work has produced a dataset of sediment geochemistry from the Japan Trench which can be used to understand the processes of carbon burial and other element cycles at this location. |
| Exploitation Route | The dataset forms part of a wider ongoing effort to characterize and understand the oceanic carbon cycle. It will be used to understand how this varies from place to place. |
| Sectors | Environment,Other |