Frauke Klingelhoëfer
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View article: Earthquakes can drive hydrocarbon seepage along the Cyprus Arc
Earthquakes can drive hydrocarbon seepage along the Cyprus Arc Open
Understanding the mechanisms controlling hydrocarbon seepage in marine environments is crucial due to the toxicity of liquid components and the contribution of the gaseous fraction to carbon budgets. While natural seepage is common, the ro…
View article: New Kinematic Model of the Early Opening of the Equatorial Atlantic Realm
New Kinematic Model of the Early Opening of the Equatorial Atlantic Realm Open
The opening of the Equatorial Atlantic Ocean constitutes the final stage of Gondwana's breakup, leading to the separation of the African and South American continents. The early spreading has been debated due to the absence of magnetic ano…
View article: New Heat flow data in the Jamaica and Windward Passages
New Heat flow data in the Jamaica and Windward Passages Open
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 the HAITI-SIS cruise (2012) discussed in Rolandone et al. (2020). This …
View article: Unexpected post-breakup altitude of the distal continental margin of the Demerara Plateau (French Guiana): New constraints from LA-ICP-MS U-Pb calcite dating
Unexpected post-breakup altitude of the distal continental margin of the Demerara Plateau (French Guiana): New constraints from LA-ICP-MS U-Pb calcite dating Open
The Demerara Plateau is a submarine bathymetric high, 230 km-long and 170 km-wide, lying between 1000 and 3000 m-depth, and located north of French Guiana and Suriname shelves. On its northeastern border, the Bastille Plateau is a 16 km-lo…
View article: Seismotectonics of the Oriente Transform Fault revisited
Seismotectonics of the Oriente Transform Fault revisited Open
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 deformation kinematics are typically purely strike-slip,…
View article: Imaging the Twin Fault System Along the Northern Boundary of the Caribbean Plate
Imaging the Twin Fault System Along the Northern Boundary of the Caribbean Plate Open
The northern plate boundary of the Caribbean tectonic plate is a complex tectonic zone. After the collision of Cuba with the Bahamas Carbonate Platform in the Eocene, several strike-slip faults accommodated the eastward movement of the Car…
View article: Investigating North Caribbean geohazards: First results from the TWiST sea campaign
Investigating North Caribbean geohazards: First results from the TWiST sea campaign Open
The transpressive Northern Caribbean plate boundary contains an active twin strike-slip fault system – the Septentrional-Oriente fault zone (SOFZ) and the Enriquillo-Plantain Garden fault zone (EPGFZ). Within the past 15 years, the E…
View article: 3D travel-time tomography of the incoming plate at the Northern Lesser Antilles subduction trench
3D travel-time tomography of the incoming plate at the Northern Lesser Antilles subduction trench Open
Seismogenesis in subduction zones is profoundly shaped by the nature of the down-going crust and its lithosphere, their inherent structures, and hydration state. However, studying how these factors influence local seismicity remains challe…
View article: First P- and S-wave tomographic results of a wide-angle seismic profile from the Haiti-TWiST campaign
First P- and S-wave tomographic results of a wide-angle seismic profile from the Haiti-TWiST campaign Open
The Septentrional-Oriente Fault Zone (SOFZ) and Enriquillo-Plantain Garden Fault Zone (EPGFZ) have a history of producing devastating earthquakes and tsunamis around Haiti. However, the deep structures and the role of fluids in their proce…
View article: Manta-Ray : a study of the relationship between fluids and seismicity in the Lesser Antilles
Manta-Ray : a study of the relationship between fluids and seismicity in the Lesser Antilles Open
The Lesser Antilles subduction zone is one of very few regions where old oceanic crust formed at slow spreading rates is being subducted. Crust accreted at slow spreading ridges differs from crust formed at higher rates, mainly in its high…
View article: Vertical deformation along the northern Caribbean plate boundary zone: the uplifted marine terraces of northern Haiti.
Vertical deformation along the northern Caribbean plate boundary zone: the uplifted marine terraces of northern Haiti. Open
North of Haiti, oblique convergence occurs between the Caribbean plate and the Bahamas carbonate banks which belong to the North American plate. In this zone, plate motion is accommodated by: (1) the EW-trending North Hispaniola reverse Fa…
View article: The Not-So-Silent Depths
The Not-So-Silent Depths Open
A new book reveals that ocean depths are far from silent voids, but are actually alive with noise.
View article: Index
Index Open
Abiotic/geological (geophony), 2 Accelerometer, 8 Accurate acoustic propagation models, 232 Acoustic Doppler current profilers (ADCPs), 10, 61 Acoustic emission, 62 of bubble, 165 Acoustic measurements, in ocean, 14 Acoustic noise, 7 Acous…
View article: An Introduction to the Ocean Soundscape
An Introduction to the Ocean Soundscape Open
The ocean soundscape is composed of sound from natural origins related to geological processes (geophony) and marine life (biophony) and of manmade origin (anthrophony). Early seismologic studies focused on earthquakes and classified most …
View article: Tsunami scenario triggered by a submarine landslide offshore of northern Sumatra Island and its hazard assessment
Tsunami scenario triggered by a submarine landslide offshore of northern Sumatra Island and its hazard assessment Open
Near the northern border of Sumatra, the right-lateral strike–slip Sumatran fault zone splits into two branches and extends into the offshore, as revealed by seismic sounding surveys. However, due to its strike–slip faulting characteristic…
View article: Coexistence of Adjacent Siliciclastic, Carbonate, and Mixed Sedimentary Systems: An Example From Seafloor Morphology in the Northern Lesser Antilles Forearc
Coexistence of Adjacent Siliciclastic, Carbonate, and Mixed Sedimentary Systems: An Example From Seafloor Morphology in the Northern Lesser Antilles Forearc Open
Three main types of factors commonly control the nature of the clasts, the arrangement of the distinctive lithologies, and the general architecture of turbidite systems: sedimentation rate and carbonate production; climates and glacio-eust…
View article: New insights on the relationship between inherited structures of the opening of the Algero-Balearic basin and recent inversion of its southern margin
New insights on the relationship between inherited structures of the opening of the Algero-Balearic basin and recent inversion of its southern margin Open
<p>The Algero-Balearic Basin (ABB) is an Oligo-Miocene back-arc basin resulting from a polyphase tectonic evolution involving Tethyan subduction retreat and bilateral slab tear propagation. The ABB was fully opened by the Tortonian, …
View article: Monitoring a submarine strike-slip fault, using a fiber optic strain cable
Monitoring a submarine strike-slip fault, using a fiber optic strain cable Open
<p>The goal of the ERC (European Research Council) funded project - FOCUS is to apply laser reflectometry on submarine fiber optic cables to detect deformation at the seafloor in real time using BOTDR (Brillouin Optical Time Domain R…
View article: Deep structure of the Demerara Plateau and its two-fold tectonic evolution: from a volcanic margin to a transform marginal plateau, insights from the Conjugate Guinea Plateau
Deep structure of the Demerara Plateau and its two-fold tectonic evolution: from a volcanic margin to a transform marginal plateau, insights from the Conjugate Guinea Plateau Open
Transform marginal plateaus (TMPs) are large and flat structures commonly found in deep oceanic domains, but their origin and relationship to adjacent oceanic lithosphere remain poorly understood. This paper focuses on two conjugate TMPs, …
View article: Initiation of transform continental margins: the Cretaceous margins of the Demerara plateau
Initiation of transform continental margins: the Cretaceous margins of the Demerara plateau Open
During the end of the lower Cretaceous, the connection between the South and the Central Atlantic accretionary axis led to the oblique opening of the Equatorial Atlantic, and to the separation of Africa and South America by alternating tra…
View article: Back‐Arc Dynamics Controlled by Slab Rollback and Tearing: A Reappraisal of Seafloor Spreading and Kinematic Evolution of the Eastern Algero‐Balearic Basin (Western Mediterranean) in the Middle‐Late Miocene
Back‐Arc Dynamics Controlled by Slab Rollback and Tearing: A Reappraisal of Seafloor Spreading and Kinematic Evolution of the Eastern Algero‐Balearic Basin (Western Mediterranean) in the Middle‐Late Miocene Open
In spite of clear fan‐shaped magnetic anomalies in the Eastern Algero‐Balearic Basin (EABB), the way how and the time when seafloor spreading occurred are still debated. In this work, a new seismo‐stratigraphic interpretation based on deep…
View article: Tsunami scenario triggered by submarine landslide offshore of northern Sumatra Island and its hazard assessment
Tsunami scenario triggered by submarine landslide offshore of northern Sumatra Island and its hazard assessment Open
Near the northern border of Sumatra, the right-lateral strike-slip Sumatran Fault Zone splits into two branches and extends into the offshore, as revealed by seismic sounding surveys. However, due to its strike-slip faulting characteristic…
View article: Elongated Giant Seabed Polygons and Underlying Polygonal Faults as Indicators of the Creep Deformation of Pliocene to Recent Sediments in the Grenada Basin, Caribbean Sea
Elongated Giant Seabed Polygons and Underlying Polygonal Faults as Indicators of the Creep Deformation of Pliocene to Recent Sediments in the Grenada Basin, Caribbean Sea Open
Based on 2D seismic profiles, multibeam and seabed grab cores acquired during the Garanti cruise in 2017, 1–5 km wide seabed giant polygons were identified in the Grenada basin, covering a total area of ∼55,000 km 2 , which is the largest …