A5033880547- Methane Hydrates and Related Phenomena
- Hydrocarbon exploration and reservoir analysis
- Geological Studies and Exploration
- Atmospheric and Environmental Gas Dynamics
- Geology and Paleoclimatology Research
- earthquake and tectonic studies
- Geological and Geophysical Studies Worldwide
- Geological formations and processes
- Geological and Geochemical Analysis
- Geological and Geophysical Studies
- Climate change and permafrost
- Marine and environmental studies
- Archaeological and Historical Studies
- Geological and Tectonic Studies in Latin America
- Spacecraft and Cryogenic Technologies
- Oceanographic and Atmospheric Processes
- Reservoir Engineering and Simulation Methods
- Geotechnical and Geomechanical Engineering
- Geophysics and Gravity Measurements
- Arctic and Antarctic ice dynamics
- Archaeological and Geological Studies
- Meteorological Phenomena and Simulations
- Aquatic and Environmental Studies
- Plant Water Relations and Carbon Dynamics
- Seismic Imaging and Inversion Techniques
Institut des Sciences de la Terre de Paris
2014-2024
Sorbonne Université
2012-2024
Centre National de la Recherche Scientifique
2012-2024
Ghent University
2002-2019
Université Paris Cité
2009-2015
Ghent University Hospital
2008-2012
Institut de physique du globe de Paris
2009-2010
Marine Research Centre
2010
Vrije Universiteit Brussel
1998-2004
Yahoo (United Kingdom)
2003
Because global coverage of heat flow measurements is still poor in many areas, empirical estimators based on the geology, thermotectonic age or velocity structure upper mantle have often been used to affect an estimate regions where such are absent. On basis assumption that strongly related its geodynamic environment, one may integrate multiple proxies derived from a large body geological and geophysical data sets assembled during past decades; these should help better capture variety...
This data publication contains the compilation of global heat-flow by International Heat Flow Commission (IHFC; http://www.ihfc-iugg.org/) Association Seismology and Physics Earth's Interior (IASPEI). The presented release 2021 generated between 1939 constitutes an updated extended version 2012 IHFC database (IHFC 2012; later re-published as PANGAEA release: Global Compilation Group, 2013). 74,548 from 1,403 publications. 55% reported values are continental domain (n ~ 40,870), while...
We report the field observation of hydrate deposits different crystal structures in same cores a mud volcano Kukuy Canyon. link those to chemical fractionation during gas crystallization. Gas composition and crystallographic analyses samples reveal involvement two distinct source types formation at present or past: microbial (methane) thermogenic (methane ethane) types. The clathrate structure II, observed for first time fresh water sediments, is believed be formed by higher mixing gas.
Research Article| July 01, 2002 Sublacustrine mud volcanoes and methane seeps caused by dissociation of gas hydrates in Lake Baikal P. Van Rensbergen; Rensbergen 1Renard Centre Marine Geology, University Ghent, Krijgslaan 281-S8, B-9000 Gent, Belgium Search for other works this author on: GSW Google Scholar M. De Batist; Batist J. Klerkx; Klerkx 2Department Geology Mineralogy, Royal Museum Central Africa, Tervuren, R. Hus; Hus 3Renard Poort; Poort Vanneste; Vanneste N. Granin; Granin...
Since 1963, the International Heat Flow Commission has been fostering compilation of Global Database to provide reliable heat-flow data. Over time, techniques and methodologies evolved, calling for a reorganization database structure reassessment stored Here, we results collaborative, community-driven approach set-up new, quality-approved global database. We present background information on how is determined this important thermal parameter could be systematically evaluated. The latter...
The Amazon River culminates in one a deep-sea fan up to 10 km thick, dynamic setting which the rapid deposition of organic-rich sediment drives linked processes methanogenesis, fluid migration and venting, gas hydrate formation, large-scale slope instability. Growth over last 8 Ma has been accompanied by its gravitational collapse on shale detachments form extensional compressional belts across shelf upper (96%) are
Transform faults are often considered to be geometrically simple, nearly linear, vertical structures that localize crustal deformation within a narrow zone surrounding the fault. The kinematics typically purely strike-slip, parallel far-field plate motion, with seismic slip above brittle-ductile transition, near 600 °C isotherm, which is well predicted by thermal models. Although deviations from these simplified features have been described, much remains learned about seismogenic...
New heat flow data, acquired in offshore Haiti, Cuba and Jamaica during the HAITI-TWIST cruise (2024), will be presented. These data complete earlier acquisitions from HAITI-SIS (2012) discussed Rolandone et al. (2020). This study based on in-situ measurements Bottom Simulating Reflector (BSR) derived flow, revealed a regionally low of approximately 40-50 mW/m², with some localized high values exceeding 80 mW/m². Elevated was observed only near major strike-slip fault...
Abstract We explored the submarine portions of Enriquillo–Plantain Garden Fault zone ( EPGFZ ) and Septentrional–Oriente SOFZ along Northern Caribbean plate boundary using high‐resolution multibeam echo‐sounding shallow seismic reflection. The bathymetric data shed light on poorly documented or previously unknown fault zones running over 200 km between Haiti Jamaica 300 Dominican Republic Cuba ). primary plate‐boundary structures are a series strike‐slip segments associated with pressure...
Periodic revisions of the Global Heat Flow Database (GHFD) take place under auspices International Commission (IHFC) Association Seismology and Physics Earth's Interior (IASPEI). A growing number heat-flow values, advances in scientific methods, digitization, improvements database technologies all warrant a revision structure GHFD that was last amended 1976. We present new for GHFD, which will provide basis reassessment existing global data set. The fields within are described detail to...
ABSTRACT In this paper, we present new seismic and heat‐flow data that show the base of hydrate stability zone (BHSZ) in Lake Baikal to be locally characterized by abnormal variations depth, with distinct regions deeper‐than‐normal shallower‐than‐normal BHSZ. These are related strong lateral heat flow, occur close association important rift‐basin faults. Areas shallow BHSZ also presence several methane seeps mud volcanoes at lake floor. We infer surface expression escape pathways for...
Abstract Since the Miocene, thinned continental crust below Alboran Sea and its overlying sedimentary cover have been undergoing deformation caused by both convergence of Eurasia Africa deep processes related to Tethyan slab retreat. Part this is recorded at Xauen Tofiño banks in southern Sea. Using swath bathymetry multichannel seismic reflection data, we identified different stages styles deformation. The South Basin made up Early Miocene Pliocene layers that correlate with West depocenter...
Abstract Molecular and stable isotope compositions of hydrate-bound gases collected from 59 hydrate-bearing sites between 2005 to 2019 in the southern central sub-basins Lake Baikal are reported. The δ 2 H methane is distributed − 310‰ 270‰, approximately 120‰ lower than its value marine environment, due difference lake water seawater. Hydrate-bound originate microbial (primary secondary), thermogenic, mixed gas sources. Gas hydrates with ethane (δ 13 C: 60‰, H: 250‰) were retrieved at...
Knowledge of cage occupancies and hydration numbers ( n ) naturally occurring gas hydrate in a local environment is important for the improvement global estimates hydrate‐bound natural gas. We report on differences number hydrates from Lake Baikal. Natural both structures I II (sI sII) ranging composition pure CH 4 to mixed containing up 15% C 2 H 6 are compared. The average = 6.1 sI recovered Malenky Bolshoy mud volcanoes, 6.2 hydrates, 3–4% K‐2 volcano, 6.9 sII about volcano. due small...
Gas hydrates are natural gas reservoirs in ice‐like crystalline solids, and stable pore spaces of submarine sediments water depths greater than about 300–500 m. They have been recovered many the world's oceans, both at larger sub‐bottom (up to 450 m) by drilling near seafloor shallow cores gravity‐coring. In latter case, related sites enhanced seepage such as cold seeps mud volcanoes [ Ginsburg Soloviev , 1998]. Multidisciplinary field investigations during two cruises revealed new, large...