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The Tangihua complex, New Zealand : implications for cretaceous - oligocène c...
New major oxide, trace element and isotopic analyses of basal tic lavas from the Tangihua Complex, Northland, New Zealand, have led to the development of a new model... -
The role of colloidal matter in transfer of chemical elements in the boreal z...
The objective of this thesis was to study element speciation and migration in the boreal environments (Karelia and Central Russia). Specific goals were to i)... -
Dynamics, sources and speciation of trace elemetns in the Orge River watershe...
The aim of this work is to study the dynamics of trace elements (TE) in the water column of the Orge River. In the upstream part of the watershed, land uses consist... -
Paleoenvironmental reconstruction of the Sarmatian (Middle Miocene) Central P...
Palaeoenvironmental changes in the Sarmatian Central Paratethys were reconstructed by studying foraminifers (36 species) and ostracods (28 species) from two boreholes... -
Trace element speleothem record of climatic variations from speleothems
Calcareous deposits forming within caves, also known as speleothems, have become acknowledged paleoclimatic archives. One of their main interests is that they can be... -
Bio-geochemical study of a lake system from the Amazonian Floodplain: The cas...
The Amazon Rivers catchments area is composed of 5% area of floodplain. The question is “how does this area impact the biogeochemistry of the Amazon main stem?”.<br... -
B/Ca ratio of foraminifers : a proxy for the carbon cycle in the ocean
It has been shown recently that the B/Ca ratio of planktonic foraminifers depends on the seasurface water pH, while benthic foraminifer B/Ca depends on the carbonate...
