Seismic deformation structures of the post-2300 a BP muddy sediments in Kawachi lowland plain, Osaka, Japan

During the course of electron transmission investigations of the deformation structures associated with shock-loaded thin foil specimens of 70/30 brass, it was observed that in a number of instances preferential etching occurred along grain boundaries; and that the degree of etching appeared to depend upon the various experimental conditions prevailing during electropolishing. These included the electrolyte composition, the average current density, and the temperature in the vicinity of the specimen. In the specific case of 70/30 brass shock-loaded at pressures in the range 200-400 kilobars, the predominant mode of deformation was observed to be twin-type faults which in several cases exhibited preferential etching similar to that observed along grain boundaries. A novel feature of this particular phenomenon was that in certain cases, especially for twins located in the vicinity of the specimen edge, the etching or preferential electropolishing literally isolated these structures from the matrix.

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3D soft-sediment deformation structures: evidence for Quaternary seismicity in the Madrid basin, Spain

Terra Nova ◽

10.1046/j.1365-3121.1997.d01-32.x ◽

1997 ◽

Vol 9 (5) ◽

pp. 208-212 ◽

Cited By ~ 1

Author(s):

P.G. Silva ◽

J.C. Canaveras ◽

S. Sanchez-Moral ◽

J. Lario ◽

E. Sanz

Keyword(s):

Soft Sediment ◽

Deformation Structures ◽

Sediment Deformation ◽

Soft Sediment Deformation

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Dead Sea shoreline facies with seismically-induced soft-sediment deformation structures, Israel

Israel Journal of Earth Sciences ◽

10.1560/gxht-ak5w-46ef-vtr8 ◽

2000 ◽

Vol 49 (4) ◽

pp. 197-214 ◽

Cited By ~ 18

Author(s):

Dan Bowman ◽

Dorit Banet-Davidovich ◽

Hendrik J. Bruins ◽

Johannes Van der Plicht

Keyword(s):

Dead Sea ◽

Soft Sediment ◽

Deformation Structures ◽

Sediment Deformation ◽

Soft Sediment Deformation

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The Deformation Structure of the Nuclei 32S and 36Ar

JOURNAL OF ADVANCES IN PHYSICS ◽

10.24297/jap.v13i2.6028 ◽

2017 ◽

Vol 13 (2) ◽

pp. 4678-4688

Author(s):

K. A. Kharroube

Keyword(s):

Single Particle ◽

Electric Quadrupole ◽

Quadrupole Moments ◽

Moments Of Inertia ◽

Deformation Structures ◽

Particle Potential ◽

Nilsson Model ◽

Single Particle Potential ◽

Axes Of Symmetry ◽

Good Agreement

We applied two different approaches to investigate the deformation structures of the two nuclei S32 and Ar36 . In the first approach, we considered these nuclei as being deformed and have axes of symmetry. Accordingly, we calculated their moments of inertia by using the concept of the single-particle SchrÃ¶dinger fluid as functions of the deformation parameter Î². In this case we calculated also the electric quadrupole moments of the two nuclei by applying Nilsson model as functions of Î². In the second approach, we used a strongly deformed nonaxial single-particle potential, depending on Î² and the nonaxiality parameter Î³ , to obtain the single-particle energies and wave functions. Accordingly, we calculated the quadrupole moments of S32 and Ar36 by filling the single-particle states corresponding to the ground- and the first excited states of these nuclei. The moments of inertia of S32 and Ar36 are then calculated by applying the nuclear superfluidity model. The obtained results are in good agreement with the corresponding experimental data.

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The effect of seismic deformation mechanisms on fluid migration in accumulation area of gold ore concentrations

Доклады Академии наук ◽

10.31857/s0869-5652484187-92 ◽

2019 ◽

Vol 484 (1) ◽

pp. 87-92

Author(s):

T. M. Zlobina ◽

V. A. Petrov ◽

K. Yu. Murashov ◽

A. A. Kotov

Keyword(s):

Fluid Flow ◽

Flow Control ◽

Deformation Mechanisms ◽

Fluid Migration ◽

Fluid Regime ◽

Gold Ore ◽

Fluid Flow Control ◽

Seismic Deformation ◽

Fluid Inflow ◽

Main Influence

This study investigates the effect of mechanisms of paleode formations during the period of fluid inflow into the accumulation sphere of gold concentrations. Such mechanisms are believed to correspond to DC- and NDC- type seismic mechanisms, whose main influence on fluid migration lies on the formation of different, relative to fluid regime parameters, structural and hydrodynamic organizations of the ore-forming system, and fluid flow control within the area of the accumulation of ore concentrations.

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Aseismic and seismic impact on development of soft-sediment deformation structures in deep-marine sand-shaly Crocker Fan in Sabah, NW Borneo

Journal of King Saud University - Science ◽

10.1016/j.jksus.2021.101522 ◽

2021 ◽

pp. 101522

Author(s):

Muhammad Jamil ◽

Numair Ahmed Siddiqui ◽

Muhammad Umar ◽

Muhammad Usman ◽

Nisar Ahmed ◽

...

Keyword(s):

Soft Sediment ◽

Deformation Structures ◽

Marine Sand ◽

Sediment Deformation ◽

Soft Sediment Deformation ◽

Seismic Impact

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Lacustrine Slope-Related Soft-Sediment Deformation Structures in the Cretaceous Gyeokpori Formation, Buan Area, SW Korea, and Volcanism-Induced Seismic Shocks as Their Possible Trigger

Minerals ◽

10.3390/min11070721 ◽

2021 ◽

Vol 11 (7) ◽

pp. 721

Author(s):

Ukhwan Byun ◽

A.J. (Tom) van Loon ◽

Kyoungtae Ko

Keyword(s):

Facies Analysis ◽

Deformation Mechanisms ◽

Volcanic Area ◽

Cohesive Sediments ◽

Soft Sediment ◽

Deformation Structures ◽

Sediment Deformation ◽

Soft Sediment Deformation ◽

Siliciclastic Rocks ◽

Sediment Layers

The Gyeokpori Formation in the Buan volcanic area primarily contains siliciclastic rocks interbedded with volcanoclastics. These sediments are characterized by a variety of soft-sediment deformation structures (SSDS). The SSDS in the Gyeokpori Formation are embedded in poorly sorted conglomerates; slump folds are also present in the formation. The deformation mechanisms and triggers causing the deformation are not yet clear. In the present study, the trigger of the SSDS in the Gyeokpori Formation was investigated using facies analysis. This included evaluation of the reworking process of both cohesive and non-cohesive sediments. The analysis indicates that the SSDS are directly or indirectly associated with the alternation of conglomerates and mud layers with clasts. These layers underwent non-cohesive and cohesive deformation, respectively, which promoted SSDS formation. The slump folds were controlled by the extent of cohesive and non-cohesive deformation experienced by the sediment layers in the slope environment. The SSDS deformation style and morphology differ, particularly in the case of reworking by slump activity. This study contributes to the understanding of lacustrine slope-related soft-sediment deformation structures.

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