The globally-warm climate of the Early Eocene Climatic Optimum (EECO) offers a potential analog for a future greenhouse world. Studying the Eocene ocean gives us a window into an Earth where marine carbon cycling may have been much different from what is observed in the present. I use a long barite record in the Indian Ocean to contrast carbon expo...
Climate dynamics are primarily forced by physical parameters such as insolation and ocean circulation; however, purely physical models fail to replicate the abrupt changes seen in climate records, implicating biogeochemical internal feedback mechanisms as important factors in the global climate system. Marine nutrient supply is a primary avenue tha...
In marine geophysics, high-resolution data collection is critical for investigating seafloor geomorphology and near-surface stratigraphy, particularly for geohazard assessments. The integration of multibeam bathymetry, sub-bottom profiling, deep multichannel seismic data, and well data provides valuable insights into both recent and ancient geologi...
AbstractI investigated water temperature, dissolved oxygen (DO), clarity, salinity, stable oxygen isotopes (δ18O), pH, alkalinity, dissolved inorganic carbon (DIC), the stable carbon isotope of DIC (δ13CDIC), silica, and nitrate in the open water of a tropical mangrove estuary and rivers feeding the estuary. I aimed to document how anthropogenic po...
The SUBSAINTES’17 cruise took place between the 2nd and 24th of April in an area be- tween the islands of Les Saintes and Dominica. This area has been mapped with ship- board multibeam surveys (Bathysaintes’10 onboard N/O Pourquoi Pas? PI: N. Feuillet & C. Deplus). Les Saintes and Dominica are linked by a network of normal faults that inter- act wi...
Shimmer, Tangle, Deep, Dark, Wet is an exploration of the possibilities of the publication, the underwater world, editorial work and an investigation in different materials. The work includes among other things, a professional mermaid, a marine geologist, three underwater rugby players, and a poem about the waves in the Persian Gulf. / Skimmer, tra...
Over nearly a century, seismology has provided valuable earthquake observation and information. The locations of earthquake hypocenters have helped define the spatial distribution of faults that host earthquakes and helped identify regions that may have large and damaging events in the future. However, exactly how aseismic slip, small earthquakes, ...
The marine carbon cycle is a major driver of global climate. Reliable marine carbon cycle proxies are required to study the relationship between life in the ocean and climate in the past and to predict how the marine carbon cycle may change in the future. Pelagic barite in marine sediments is a valuable marine carbon cycle proxy. However, many aspe...
Because the seafloor is a complex ecosystem, a multidisciplinary approach must be adopted in order to produce comprehensive habitat maps. Such multidisciplinary projects have been lacking for the Dutch area of the North Sea. To address this lack, the Distribution, structure and functioning of low resilience seafloor communities and habitats of the ...
This thesis explored the use of bulk stable nitrogen (δ15N) and carbon (δ13C) isotope records from central Pacific proteinaceous deep-sea corals to create novel multi-millennial scale, sub-decadal resolution records of export production in this ocean region. I used live collected and subfossil coral specimens from both the central North Pacific Sub...
