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Extension in the Tyrrhenian Sea and shortening in the Apennines as result of arc migration driven by sinking of the lithosphere
Previously proposed models for the evolution of the Tyrrhenian basin-Apenninic arc system do not seem to satisfactorily explain the dynamic relationship between extension in the Tyrrhenian and
Parsimonious Bayesian Markov chain Monte Carlo inversion in a nonlinear geophysical problem
Summary A key element in the solution of a geophysical inverse problem is the quantification of non-uniqueness, that is, how much parameters of an inferred earth model can vary while fitting a set
A Cenozoic record of the equatorial Pacific carbonate compensation depth
A carbonate accumulation record that covers the past 53 million years from a depth transect in the equatorial Pacific Ocean is presented and large superimposed fluctuations in carbonate compensation depth are found during the middle and late Eocene.
Orbital tuning as an inverse problem: Chronology of the early Aptian oceanic anoxic event 1a (Selli Level) in the Cismon APTICORE
[1] Orbital tuning, the process of fitting sedimentary cycles to orbital periodicities, can estimate with high resolution the timing and duration of key events in the geological record. We formulate
Expanded uncertainty quantification in inverse problems: Hierarchical Bayes and empirical Bayes
A common way to account for uncertainty in inverse problems is to apply Bayes' rule and obtain a posterior distribution of the quantities of interest given a set of measurements. A conventional
Gas hydrate occurrence from pore water chlorinity and downhole logs in a transect across the northern Cascadia margin (Integrated Ocean Drilling Program Expedition 311)
[1] A transect of four sites drilled by Integrated Ocean Drilling Program Expedition 311 provides an ideal data set to investigate the distribution of gas hydrates across the northern Cascadia
Receiver function inversion by trans‐dimensional Monte Carlo sampling
SUMMARY A key question in the analysis of an inverse problem is the quantification of the non-uniqueness of the solution. Non-uniqueness arises when properties of an earth model can be varied
M‐sequence geomagnetic polarity time scale (MHTC12) that steadies global spreading rates and incorporates astrochronology constraints
[1] Geomagnetic polarity time scales (GPTSs) have been constructed by interpolating between dated marine magnetic anomalies assuming uniformly varying spreading rates. A strategy to obtain an optimal
A simple method to estimate the fractal dimension of a self‐affine series
Time/space series of natural variables (e.g., surface topography) are often self-affine, i.e., measurements taken at different resolutions have the same statistical characteristics when rescaled by
On the robustness of elastic thickness estimates obtained using the coherence method
In order to uniquely determine the elastic thickness of the lithosphere, Te, from gravity and topography data, the coherence method explicitly assumes that surface and subsurface loads are