Przemyslaw Domel

Local Seismicity and Sediment Deformation in the West Svalbard Margin: Implications of Neotectonics for Seafloor Seepage

Przemyslaw Domel, Andreia Plaza‐Faverola, Vera Schlindwein, Stefan Bünz

Abstract In the Fram Strait, mid‐ocean ridge spreading is represented by the ultra‐slow system of the Molloy Ridge, the Molloy Transform Fault and the Knipovich Ridge. Sediments on oceanic and continental crust are gas charged and there are several locations with documented …

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Stress Constraints From Shear‐Wave Analysis in Shallow Sediments at an Actively Seeping Pockmark on the W‐Svalbard Margin

Sunny Singhroha, Bettina Schramm, Andreia Plaza‐Faverola, Przemyslaw Domel et autres

Abstract Mechanisms related to sub‐seabed fluid flow processes are complex and inadequately understood. Petrophysical properties, availability of gases, topography, stress directions, and various geological parameters determine the location and intensity of leakage which change over time. From tens of seafloor pockmarks mapped …

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Event recognition in marine seismological data using Random Forest machine learning classifier

Przemyslaw Domel, Clément Hibert, Vera Schlindwein, Andreia Plaza‐Faverola

SUMMARY Automatic detection of seismic events in ocean bottom seismometer (OBS) data is difficult due to elevated levels of noise compared to the recordings from land. Popular deep-learning approaches that work well with earthquakes recorded on land perform poorly in a marine …

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Local seismicity in the obliquely spreading setting of Fram Strait constrained from ocean bottom seismometers: Implications for fluid flow and methane seepage

Przemyslaw Domel, Vera Schlindwein, Andreia Plaza‐Faverola, Stefan Bünz

The Fram Strait opening is associated with a complex stress regime that results from the oblique relation between two ultra-slow spreading mid-ocean ridges, the Molloy ridge (MR) and the Knipovich Ridge (KR), offset by the Molloy Transform Fault (MTF). Gas-charged thick sedimentary …

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CAGE21-3 Cruise Report: Ocean bottom seismics and acoustic surveys on the West-Svalbard margin – a study of local seismicity and its effect on methane seepage

Andreia Plaza‐Faverola, Vera Schlindwein, Przemyslaw Domel, Mechita C. Schmidt‐Aursch et autres

Cruise CAGE21-3 with UiT’s research vessel R/V Helmer Hanssen was carried out to address the following objectives within the SEAMSTRESS project (Tectonic stress effects on Arctic methane seepage):1- Recovery of 10 Ocean Bottom Seismometers (OBS) deployed last year north of the Knipovich …

Origin and Periodic Behavior of Short Duration Signals Recorded by Seismometers at Vestnesa Ridge, an Active Seepage Site on the West-Svalbard Continental Margin

Przemyslaw Domel, Sunny Singhroha, Andreia Plaza‐Faverola, Vera Schlindwein et autres

Short duration events (SDEs) are reported worldwide from ocean-bottom seismometers (OBSs). Due to their high frequency (4–30 Hz) and short duration, they are commonly attributed to aseismic sources, such as fluid migration related processes from cold seeps, biological signals, or noise. We …

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Replication data for: Origin and periodic behavior of short duration signals recorded by seismometers at Vestnesa Ridge, an active seepage site on the west-Svalbard continental margin

Przemyslaw Domel, Sunny Singhroha, Andreia Plaza‐Faverola, Vera Schlindwein et autres

[description] This dataset contains 10-months of continous ocean bottom seismometers (OBS) data from Vestnesa Ridge (October 2015 - July 2016). Only vertical channels of seismometers are included. This data is used in in the article: Domel P, Singhroha S, Plaza-Faverola A, Schlindwein …

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Characterization of the seismic velocities in a gas chimney blow the actively seeping Lunde pockmark, Vestnesa Ridge, Svalbard Margin: Preliminary results

Bettina Schramm, Sunny Singhroha, Anke Dannowski, Sunil Vadakkepuliyambatta et autres

Hydrocarbon gases are actively seeping from pockmarks in the eastern part of the Vestnesa Ridge, western-Svalbard Margin. One of these is Lunde pockmark which is characterized by a seismic chimney below. Such seismic anomalies are widely believed to represent fluid migration pathways. …

Correlation between seepage activity and micro seismicity on the Vestnesa Ridge, NW- Svalbard continental margin

Przemyslaw Domel

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Effect of Regional Forcing on Fault-related Seepage off West-Svalbard

Andreia Plaza‐Faverola, Frances Ann Cooke, Przemyslaw Domel, Sunny Singhroha et autres

Analysis of AVO Anomaly in Rotliegend Sandstone in the Polish Lowland

Przemyslaw Domel

Summary Polish Lowland is an area with more than 50-years history of explorating oil and gas reserves. One of two most prominent reservoir rocks in this area is a Rotliegend sandstone, bearing mostly natural gas. In 2013, a large offset 3D seismic …

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