Slah Boulila

I am Geologist at Sorbonne University (Paris, France). I am interested in cyclic climate and oceanic processes encoded in past (paleo) sedimentary records.
I acquire and use high-resolution geophysical and geochemical data from the sedimentary records (either from outcrops or from subsurface-drilling programs) to address three multidisciplinary, interrelated topics: (1) astronomical calibration of the Cenozoic and Mesozoic time scales, (2) the role of orbitally controlled climate and sea-level changes in the hierarchy of sedimentary sequences, and (3) to which extent the sedimentary record could provide constraints on astronomical modeling. In this latter topic, I am interested in two subjects: (a) constrain tidal-dissipation parameters (and dynamic ellipticity of the Earth) by calculation of the precession frequency (constant, p) from well-preserved sedimentary cycles, and (b) mapping the expression of Myr- to multi-Myr-long astronomical cyclicities in the Cenozoic and Mesozoic strata, esp. their implication for the chaotic behavior of the inner solar system, expressed in these long orbital periodicities as resonant angles.