Results 81 to 90 of about 2,201 (156)

Differences in the Sulfate–Methane Transitional Zone in Coastal Pockmarks in Various Sedimentary Environments

open access: yes, 2020
Different types of pockmarks, including single pockmarks, circular pockmarks, elongated pockmarks, chain-type pockmarks, and compound pockmarks, were identified in coastal areas around Fujian, China.
Shaohua Zhao   +4 more
core   +1 more source

Semi-automated characterisation of seabed pockmarks in the central North Sea [PDF]

open access: yes, 2012
Pockmarks are indicators of focused fluid seepage, most notably gas such as methane, and can occur in vast numbers in many marine and even in lacustrine environments.
Long, D., Gafeira, J., Diaz-Doce, D.
core   +1 more source

Distribution Characteristics and Evolution Mechanism of Pockmark Group in the Northwestern Xisha Uplift, South China Sea

open access: yesJournal of Marine Science and Engineering
Submarine pockmarks are typical seafloor micro-geomorphic landforms formed by deep fluid seepage and sediment erosional processes. Based on high-resolution multibeam bathymetric data, multi-channel seismic sections and sediment core data, the present ...
Tianqi Lu   +5 more
doaj   +1 more source

Giant pockmarks in a carbonate platform (Maldives, Indian Ocean).

open access: yes, 2011
Circular structures and depressions in carbonate platforms are known to represent karst chimneys or sinkholes which form as a response to rock solution. This formation mechanism is plausible for shallow-water carbonates which lie in the reach of meteoric
Reijmer, J.J.G.; id_orcid   +12 more
core   +1 more source

Role of pockmarks in diversity and species assemblages of coastal macrobenthic communities

open access: yes, 2015
We used existing bathymetric data to study the macrofauna of a geophysical pockmark field restricted to a benthic habitat engineered by the tubiculous amphipod Haploops nirae in South Brittany (France).
Thiebaut, Eric   +5 more
core   +1 more source

A side-scan sonar mosaic of pockmarks on the Scotian Shelf

open access: yes, 1978
Pockmarks, cone-shaped depressions that occur in unconsolidated fine sediments at the seabed, are generally thought to be formed by gas ascending from underlying sediments.
Heiner W. Josenhans   +2 more
core   +1 more source

Using Distributed Temperature Sensing for Long-Term Monitoring of Pockmark Activity in the Gulf of Patras (Greece): Data Processing Hints and Preliminary Findings. [PDF]

open access: yesSensors (Basel), 2023
Fakiris E   +8 more
europepmc   +1 more source

Distribution and origin of natural gas leakage in the Colorado Basin, offshore Argentina 2 Margin, South America: seismic interpretation and 3D basin modelling

open access: yesGeologica Acta, 2014
The detailed analysis of a dense 2D seismic reflection dataset and data from 8 exploration wells, allowed us to identify, map out and characterize possible indications of past and present-day hydrocarbon leakage (i.e.
Z. ANKA   +5 more
doaj  

Gravity complexes as a focus of seafloor fluid seepage: the Rio Grande Cone, SE Brazil. [PDF]

open access: yesSci Rep, 2023
Ketzer M   +10 more
europepmc   +1 more source

Channel Confined Pockmarks - A Case Study from the Present Day Seafloor, Offshore Niger Delta

open access: yes, 2013
Using a 738 km2 3D seismic dataset from deep offshore Niger Delta, two types of channel confined pockmarks (channel-margin and intra-channel pockmarks) have been identified and imaged within a submarine channel on the present-day seafloor, offshore Niger
Huuse, M.; id_orcid   +5 more
core   +1 more source

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