An interdisciplinary approach to the evaluation of physical parameters of shallow marine sediments

Abstract

A large number of high-resolution seismic investigations and in situ geotechnical measurements were carried out in the southern Baltic, offshore Bornholm. The geotechnical measurements, carried out with Ifremer's Geotechnical Module and Kiel's GISP system, provided information on cone resistance, induced pore pressure and density of the surficial sediments. The seismic data were subjected to different processing techniques, including detrending and multiple quotient division, which made it possible to deduce the reflection coefficients and impedance contrasts at subbottom interfaces. The different geotechnical and From

Cruise report for a seismic investigation of gas hydrates in the Mississippi Canyon region, northern Gulf of Mexico: Cruise M1-98-GM

“…4a,b and 5). Towed-array data from this experiment will be processed at MMTC to derive estimates of reflection coefficients from a multiple-quotient analysis (Missiaen et al, 1996), to study frequency dependence of reflection coefficients for the hydrate stability zone based on the different seismic sources. For the OBS data, the variable response of the two different OBS recording systems will be assessed to look at near-field response of possible hydrates in the underlying sedimentary section.…”