Estimating tectonic history through basin simulation-enhanced seismic inversion: geoinfomatics for sedimentary basins

Download

index.pdf

Date

2004-01-01

Author

Tandon, K
Tuncay, Kağan
Hubbard, K
Comer, J
Ortoleva, P

Metadata

Show full item record

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Item Usage Stats

221
views

0
downloads

A data assimilation approach is demonstrated whereby seismic inversion is both automated and enhanced using a comprehensive numerical sedimentary basin simulator to study the physics and chemistry of sedimentary basin processes in response to geothermal gradient in much greater detail than previously attempted. The approach not only reduces costs by integrating the basin analysis and seismic inversion activities to understand the sedimentary basin evolution with respect to geodynamic parameters- but the technique also has the potential for serving as a geoinfomatics platform for understanding various physical and chemical processes operating at different scales within a sedimentary basin.

Subject Keywords

Geochemistry and Petrology, Geophysics

URI

https://hdl.handle.net/11511/42269

Journal

GEOPHYSICAL JOURNAL INTERNATIONAL

DOI

https://doi.org/10.1111/j.1365-246x.2004.02126.x

Collections

Department of Civil Engineering, Article

Suggestions

OpenMETU
Core

Evaluation of Site Response with Alternative Methods: A Case Study for Engineering Implications Sisman, Fatma Nurten; Askan Gündoğan, Ayşegül; Asten, Michael (Springer Science and Business Media LLC, 2018-01-01) In this paper, efficiency of alternative geophysical techniques for site response is evaluated in two sedimentary basins on the North Anatolian Fault Zone. For this purpose, fundamental frequencies of soils and corresponding amplitudes obtained from empirical horizontal-to-vertical spectral ratio curves from microtremors, weak motions and strong motions are compared with results from one-dimensional theoretical transfer functions. Theoretical transfer functions are computed using S-wave velocity profiles de...
Sensitivity Study of Hydrodynamic Parameters During Numerical Simulations of Tsunami Inundation Ozer, Ceren; Yalçıner, Ahmet Cevdet (Springer Science and Business Media LLC, 2011-11-01) This paper describes the analysis of a parameter, "hydrodynamic demand,'' which can be used to represent the potential for tsunami drag force related damage to structures along coastlines. It is derived from the ratio of drag force to hydrostatic force caused by a tsunami on the structure. It varies according to the instantaneous values of the current velocities and flow depths during a tsunami inundation. To examine the effects of a tsunami in the present study, the analyses were performed using the tsunam...
Time domain Gauss-Newton seismic waveform inversion in elastic media Sheen, Dong-Hoon; Tuncay, Kağan; Baag, Chang-Eob; Ortoleva, Peter J. (Oxford University Press (OUP), 2006-12-01) We present a seismic waveform inversion methodology based on the Gauss-Newton method from pre-stack seismic data. The inversion employs a staggered-grid finite difference solution of the 2-D elastic wave equation in the time domain, allowing accurate simulation of all possible waves in elastic media. The partial derivatives for the Gauss-Newton method are obtained from the differential equation of the wave equation in terms of model parameters. The resulting wave equation and virtual sources from the recipr...
Full waveform inversion for seismic velocity and anelastic losses in heterogeneous structures Askan Gündoğan, Ayşegül; Bielak, Jacobo; Ghattas, Omar (Seismological Society of America (SSA), 2007-12-01) We present a least-squares optimization method for solving the nonlinear full waveform inverse problem of determining the crustal velocity and intrinsic attenuation properties of sedimentary valleys in earthquake-prone regions. Given a known earthquake source and a set of seismograms generated by the source, the inverse problem is to reconstruct the anelastic properties of a heterogeneous medium with possibly discontinuous wave velocities. The inverse problem is formulated as a constrained optimization prob...
Sea level variability at Antalya and Mentes tide gauges in Turkey: atmospheric, steric and land motion contributions Simav, Mehmet; Yildiz, Hasan; Turkezer, Ali; Lenk, Onur; Ozsoy, Emin (Springer Science and Business Media LLC, 2012-01-01) Sea level trends and interannual variability at Antalya and Mentes tide gauges are investigated during the 1985-2001 period, quantifying the roles of atmospheric, steric and local land motion contributions. Tide gauge sea level measurements, temperature/salinity climatologies and GPS data are used in the analyses and the results are compared with the output of a barotropic model forced by atmospheric pressure and wind. The overall sea level trends at two tide gauges collocated with GPS are in the range of 5...

Citation Formats

K. Tandon, K. Tuncay, K. Hubbard, J. Comer, and P. Ortoleva, “Estimating tectonic history through basin simulation-enhanced seismic inversion: geoinfomatics for sedimentary basins,” GEOPHYSICAL JOURNAL INTERNATIONAL, pp. 129–139, 2004, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/42269.