Results 31 to 40 of about 51,259 (279)

The origin of fine scale acoustic stratigraphy in deep-sea carbonates [PDF]

open access: yes, 1979
In this paper we investigate the origin and geologic significance of the closely spaced high-frequency subbottom acoustic reflectors characteristic of pelagic carbonates.
Mayer, Larry A.
core   +2 more sources

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

Seismic Reflection Imaging of a Deep‐Penetrating Red River Fault in the Yinggehai Basin, Northwest of the South China Sea

open access: yesGeophysical Research Letters, 2023
The Yinggehai Basin (YB) in the northwest of the South China Sea (SCS) has preserved the complete evolution of the Red River Fault (RRF), whose motion over time has largely contributed to shaping the current tectonic framework of the southeastern Tibetan
Lun Li, Shaoping Lu, Rui Gao, Chao Lei
doaj   +1 more source

Anatomy and origin of authochthonous late Pleistocene forced regression deposits, east Coromandel inner shelf, New Zealand: implications for the development and definition of the regressive systems tract [PDF]

open access: yes, 2004
High-resolution seismic reflection data from the east Coromandel coast, New Zealand, provide details of the sequence stratigraphy beneath an autochthonous, wave dominated inner shelf margin during the late Quaternary (0-140 ka). Since c.
Bard E.   +50 more
core   +2 more sources

Echo-character of the NW Iberian continental margin and the adjacent abyssal plains

open access: yesJournal of Maps, 2018
The acoustic facies analyses have provided an important basis for sedimentary processes in the deep-sea environments. The echo-character mapping, through the interpretation and correlation of very high-resolution seismic profiles, is a very useful tool ...
Adolfo Maestro   +9 more
doaj   +1 more source

Retrieving shallow shear-wave velocity profiles from 2D seismic-reflection data with severely aliased surface waves [PDF]

open access: yes, 2019
The inversion of surface-wave phase-velocity dispersion curves provides a reliable method to derive near-surface shear-wave velocity profiles. In this work, we invert phase-velocity dispersion curves estimated from 2D seismic-reflection data.
Carcione, Jose M.   +2 more
core   +1 more source

An integrated biostratigraphy and seismic stratigraphy for the late Neogene continental margin succession in northern Taranaki Basin, New Zealand [PDF]

open access: yes, 2006
Our aim has been to develop an integrated biostratigraphy and seismic stratigraphy for the Pliocene and Pleistocene formations (Ariki, Mangaa, Giant Foresets) in northern Taranaki Basin to better understand the evolution of the modern continental margin ...
Armentrout JM   +17 more
core   +2 more sources

The Quaternary slip rate of the Yangsan Fault offshore the SE Korean Peninsula and implications for seismic hazard assessment

open access: yesGeomatics, Natural Hazards & Risk, 2021
The Yangsan Fault, a NNE-trending strike-slip fault, is a pronounced active structure in the Korean Peninsula which recently generated an earthquake with moment magnitude MW 5.5 (ML 5.8) that was the largest instrumentally recorded event in Korea.
Seonghoon Moon   +6 more
doaj   +1 more source

New prospective gas plays in pliocene sands, offshore Nile Delta Basin: A case study from Kamose-1 well at North Sinai Concession, Egypt

open access: yesPetroleum Research, 2022
The Pliocene sands in the offshore parts of the Nile Delta Basin represent significant gas reservoirs. Several targets have been recently discovered in different places along the offshore Nile Delta Basin.
Mohammad Abdelfattah Sarhan
doaj   +1 more source

High-resolution seismic profiling on water

open access: yesAnnals of Geophysics, 2000
Herein is presented an overview of high-resolution seismic profiling on water. Included are basic concepts and terminology as well as discussions of types of sources and receivers, field practice, data recording and data processing. Emphasis is on digital single-channel profiling for engineering and environmental purposes.
openaire   +3 more sources

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