Results 1 to 10 of about 2,314 (228)

Q-compensated reverse-time migration for natural gas hydrate using fractional viscoacoustic wave equation

open access: yesEnergy Reports, 2021
Natural gas hydrate (NGH) is a potential clean alternative energy source for fossil fuels. In seismic imaging profiles, NGH is often identified by the bottom-simulating reflection (BSR), which is characterized by strong reflection amplitude and negative ...
Yaxin Ning, Yanfei Wang
doaj   +1 more source

The Investigation of Shallow Structures at the Meishan Fault Zone with Ambient Noise Tomography Using a Dense Array Data

open access: yesApplied Sciences, 2022
Seismic monitoring relies on seismography. However, the high cost of seismic equipment has presented a challenge to increasing the density of seismic networks in previous decades.
Wei-Jhe Wu, Chien-Min Su, Chau-Huei Chen
doaj   +1 more source

High-resolution shear-wave seismic reflection as a tool to image near-surface subrosion structures – a case study in Bad Frankenhausen, Germany [PDF]

open access: yesSolid Earth, 2016
Subrosion is the subsurface leaching of soluble rocks that results in the formation of depression and collapse structures. This global phenomenon is a geohazard in urban areas.
S. H. Wadas, U. Polom, C. M. Krawczyk
doaj   +1 more source

Study of blind thrust faults underlying Tokyo and Osaka urban areas using a combination of high-resolution seismic reflection profiling and continuous coring

open access: yesAnnals of Geophysics, 2003
We acquired high-resolution seismic reflection profiles and continuously cored boreholes to evaluate active flexures produced by major blind thrust fault systems within two densely populated Neogene-Quaternary sedimentary basins in Japan: the ...
K. Miura   +8 more
doaj   +1 more source

Buried volcanic structures in the Gulf of Naples (Southern Tyrrhenian Sea, Italy) resulting from high resolution magnetic survey and seismic profiling

open access: yesAnnals of Geophysics, 2005
In this paper we present a correlation between volcanic structures and magnetic anomalies in the Gulf of Naples (Southern Tyrrhenian Sea) based on high resolution magnetic profiling.
S. Ruggieri   +6 more
doaj   +1 more source

Detecting thin layer by using different seismic geophones and special processing technique at an archaeological site in Southeastern China

open access: yesГеофизический журнал, 2015
The properties of geophones are important factors for high-resolution seismic exploration and have great influence on data quality. In this study we will address the problems of ultra-shallow seismic data acquisition and processing.
A. Lizan   +5 more
doaj   +1 more source

Submarine Stratigraphy of the Eastern Bay of Naples: New Seismo-Stratigraphic Data and Implications for the Somma-Vesuvius and Campi Flegrei Volcanic Activity

open access: yesJournal of Marine Science and Engineering, 2022
The submarine stratigraphy of the eastern Bay of Naples is studied through seismo-stratigraphic data correlated with borehole data. Multichannel seismic profiles are interpreted in order to reconstruct the stratigraphic relationships between the ...
Gemma Aiello
doaj   +1 more source

Seismic imaging of a thermohaline staircase in the western tropical North Atlantic [PDF]

open access: yesOcean Science, 2010
Multichannel seismic data acquired in the Lesser Antilles in the western tropical North Atlantic indicate that the seismic reflection method has imaged an oceanic thermohaline staircase.
I. Fer   +4 more
doaj   +1 more source

Source signature processing in deep water, Gulf of Mexico: comparison between deterministic deconvolution and phase conjugation

open access: yesAnnals of Geophysics, 2000
The Center for Marine Resources and Environmental Technology has been developing a new method to improve the resolution of high-resolution seismic profiling.
C. R. Partouche
doaj   +1 more source

Shallow seismic reflection imaging of the Inabanga–Clarin portion of the North Bohol Fault, Central Visayas, Philippines

open access: yesGeoscience Letters, 2019
On 15 October 2013, a magnitude 7.2 earthquake was generated from a previously unidentified fault in the island of Bohol. This fault was named the North Bohol Fault (NBF) by authorities.
Romer Carlo T. Gacusan   +1 more
doaj   +1 more source

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