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San Jacinto Graben

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Journal Article

Gravity analysis using an exponential density-depth function; San Jacinto Graben, California Available to Purchase

Lindrith Cordell
Journal: Geophysics
Published: 01 August 1973
Geophysics (1973) 38 (4): 684–690.
DOI: https://doi.org/10.1190/1.1440367
... profile over a graben structure at San Jacinto, California. The computed basin configuration is consistent with the seismically determined basement depth of 2.4 km and the estimated density layering of the graben fill. GeoRef, Copyright 2008, American Geological Institute. Reference includes data...
View PDF for article title, Gravity analysis using an exponential density-depth function; <span class="search-highlight">San</span> <span class="search-highlight">Jacinto</span> <span class="search-highlight">Graben</span>, California
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Estimated basement depth profile from the San Jacinto graben, California, USA. The blue dotted curve in (a) represents the observed gravity anomaly, and the solid red line shows the inverted gravity anomaly. The solid red line in (b) represents the inverted depth profile from Chai and Hinze (1988), and the filled region represents the inverted sedimentary basin using SPODEA.

Estimated basement depth profile from the San Jacinto graben, California, U... Available to Purchase

Published: 08 April 2021
Figure 11. Estimated basement depth profile from the San Jacinto graben, California, USA. The blue dotted curve in (a) represents the observed gravity anomaly, and the solid red line shows the inverted gravity anomaly. The solid red line in (b) represents the inverted depth profile from Chai
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San Jacinto graben. (a) The observed (solid line) and fitted ϕz anomalies calculated by the Gauss-FFT method (M=2) applied to the exponential model in Cordell (1973) (plus sign) and the hyperbolic model in Lima and Silva (2014) (cross). (b) The estimated sedimentary-basement interfaces by Cordell (1973) (solid line) and Lima and Silva (2014) (dotted line).

San Jacinto graben. (a) The observed (solid line) and fitted ϕ z ... Available to Purchase

Published: 29 January 2016
Figure 11. San Jacinto graben. (a) The observed (solid line) and fitted ϕ z anomalies calculated by the Gauss-FFT method ( M = 2 ) applied to the exponential model in Cordell (1973) (plus sign) and the hyperbolic model in Lima and Silva (2014) (cross). (b) The estimated
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San Jacinto graben. (a) Observed (dots) and fitted (dashed line) gravity anomalies. (b) Estimated relief using the proposed method with μI=10, μF=200 and the parameters listed in Table 2.

San Jacinto graben. (a) Observed (dots) and fitted (dashed line) gravity an... Available to Purchase

Published: 10 October 2014
Figure 11. San Jacinto graben. (a) Observed (dots) and fitted (dashed line) gravity anomalies. (b) Estimated relief using the proposed method with μ I = 10 , μ F = 200 and the parameters listed in Table  2 .
Image
San Jacinto Graben. Bouguer anomaly according to Cordell (1973) (dots in upper panels) and depth-to-basement estimates (solid lines in lower panels) using (a) TV regularization and (b) smoothness inversion. The fitted anomalies (solid lines in the upper panels) are produced by the estimated basement topographies shown in the corresponding lower panels. Cordell's (1973) depth-to-basement estimate is shown in doted lines in the lower panels.

San Jacinto Graben. Bouguer anomaly according to Cordell (1973) (dots in ... Available to Purchase

Published: 07 January 2011
Figure 7. San Jacinto Graben. Bouguer anomaly according to Cordell (1973) (dots in upper panels) and depth-to-basement estimates (solid lines in lower panels) using (a) TV regularization and (b) smoothness inversion. The fitted anomalies (solid lines in the upper panels) are produced
Journal Article

2D modeling and inversion of gravity data using density contrast varying with depth and source–basement geometry described by the Fourier series Available to Purchase

Juan García-Abdeslem
Journal: Geophysics
Published: 01 January 2003
Geophysics (2003) 68 (6): 1909–1916.
DOI: https://doi.org/10.1190/1.1635044
... geometry allows the interpreter to reconstruct a broad variety of geometries for the geologic structures using a small number of free parameters. Both modeling and inversion methods are illustrated with examples using field gravity data across the San Jacinto graben in southern California and across...
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View PDF for article title, 2D modeling and inversion of gravity data using density contrast varying with depth and source–basement geometry described by the Fourier series
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Journal Article

Combined modeling and smooth inversion of gravity data from a faulted basement relief Available to Purchase

Williams A. Lima, João B. C. Silva
Journal: Geophysics
Published: 10 October 2014
Geophysics (2014) 79 (6): F1–F10.
DOI: https://doi.org/10.1190/geo2013-0357.1
...Figure 11. San Jacinto graben. (a) Observed (dots) and fitted (dashed line) gravity anomalies. (b) Estimated relief using the proposed method with μ I = 10 , μ F = 200 and the parameters listed in Table  2 . ...
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View PDF for article title, Combined modeling and smooth inversion of gravity data from a faulted basement relief
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Journal Article

Gravity anomalies of two-dimensional bodies of irregular cross-section with density contrast varying with depth Available to Purchase

I. V. Radhakrishna Murthy, D. Bhaskara Rao
Journal: Geophysics
Published: 01 September 1979
Geophysics (1979) 44 (9): 1525–1530.
DOI: https://doi.org/10.1190/1.1441023
... is used to obtain the structure of the San Jacinto Graben, California, where sediments filling the graben have an exponential increase in density with depth. GeoRef, Copyright 2005, American Geological Institute. Reference includes data supplied by Society of Exploration Geophysicists, Tulsa, OK, United...
View PDF for article title, Gravity anomalies of two-dimensional bodies of irregular cross-section with density contrast varying with depth
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Journal Article

Fourier forward modeling of vector and tensor gravity fields due to prismatic bodies with variable density contrast Available to Purchase

Leyuan Wu, Longwei Chen
Journal: Geophysics
Published: 29 January 2016
Geophysics (2016) 81 (1): G13–G26.
DOI: https://doi.org/10.1190/geo2014-0559.1
...Figure 11. San Jacinto graben. (a) The observed (solid line) and fitted ϕ z anomalies calculated by the Gauss-FFT method ( M = 2 ) applied to the exponential model in Cordell (1973) (plus sign) and the hyperbolic model in Lima and Silva (2014) (cross). (b) The estimated...
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Journal Article

Gravity Anomaly Modeling of Sedimentary Basins by Means of Multiple Structures and Exponential Density Contrast-depth Variations: A Space Domain Approach Available to Purchase

V. Chakravarthi, B. Ramamma, T. Venkat Reddy
Published: 01 November 2013
Jour. Geol. Soc. India (2013) 82 (5): 561–569.
DOI: https://doi.org/10.1007/s12594-013-0188-2
... in India and the other over the San Jacinto graben, California. In case of synthetic example, the assumed structure resembles a typical intracratonic rift basin formed by normal block faulting and filled with thick section of sediments. The proposed modeling technique yielded information that is consistent...
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View PDF for article title, Gravity Anomaly Modeling of Sedimentary Basins by Means of Multiple Structures and Exponential Density Contrast-depth Variations: A Space Domain Approach
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Journal Article

Total variation regularization for depth-to-basement estimate: Part 1 — Mathematical details and applications Available to Purchase

Cristiano M. Martins, Williams A. Lima, Valeria C. F. Barbosa, João B. C. Silva
Journal: Geophysics
Published: 07 January 2011
Geophysics (2011) 76 (1): I1–I12.
DOI: https://doi.org/10.1190/1.3524286
...Figure 7. San Jacinto Graben. Bouguer anomaly according to Cordell (1973) (dots in upper panels) and depth-to-basement estimates (solid lines in lower panels) using (a) TV regularization and (b) smoothness inversion. The fitted anomalies (solid lines in the upper panels) are produced...
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View PDF for article title, Total variation regularization for depth-to-basement estimate: Part 1 — Mathematical details and applications
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Journal Article

Stable inversion of gravity anomalies of sedimentary basins with nonsmooth basement reliefs and arbitrary density contrast variations Available to Purchase

Valeria C. F. Barbosa, Joao B. C. Silva, Walter E. Medeiros
Journal: Geophysics
Published: 01 June 1999
Geophysics (1999) 64 (3): 754–764.
DOI: https://doi.org/10.1190/1.1444585
... in incorporating any a priori knowledge about the density contrast variation, it was applied to the Bouguer anomaly over the San Jacinto Graben, California. Two different exponential laws for the decrease of density contrast with depth were used, leading to estimated maximum depths between 2.2 and 2.4 km. GeoRef...
View PDF for article title, Stable inversion of gravity anomalies of sedimentary basins with nonsmooth basement reliefs and arbitrary density contrast variations
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Journal Article

Geophysical inversion using approximate equality constraints Available to Purchase

Walter E. Medeiros, Joao B. Silva
Journal: Geophysics
Published: 01 December 1996
Geophysics (1996) 61 (6): 1678–1688.
DOI: https://doi.org/10.1190/1.1444086
...) operational simplicity because of the solution insensitivity to the damping parameter. The method is also applied to the Bouguer anomaly over San Jacinto Graben, California, producing results consistent with previous interpretations. GeoRef, Copyright 2005, American Geological Institute. Reference includes...
View PDF for article title, Geophysical inversion using approximate equality constraints
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Journal Article

Gravity interpretation using Fourier transforms and simple geometrical models with exponential density contrast Available to Purchase

D. Bhaskara Rao, M. J. Prakash, N. Ramesh Babu
Journal: Geophysics
Published: 01 August 1993
Geophysics (1993) 58 (8): 1074–1083.
DOI: https://doi.org/10.1190/1.1443491
.... After applying end corrections to improve the discrete transforms of observed gravity data, the transforms are interpreted for model parameters. This method is first tested on two synthetic models, then applied to gravity anomalies over the San Jacinto graben and Los Angeles basin. GeoRef, Copyright...
View PDF for article title, Gravity interpretation using Fourier transforms and simple geometrical models with exponential density contrast
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Journal Article

To: “Analysis of gravity anomalies of sedimentary basins by an asymmetrical trapezoidal model with quadratic density function” by D. B. Rao in GEOPHYSICS (55, 226-231). Available to Purchase

Journal: Geophysics
Published: 01 May 1990
Geophysics (1990) 55 (5): 639.
DOI: https://doi.org/10.1190/1.1442876
... of the objective function, damping parameter, and various parameters of the model with respect to iteration number; the results are superior to those obtained when using constant density contrasts. In addition, I apply the method in the interpretation of gravity anomalies over the San Jacinto graben and the lower...
View PDF for article title, To: “Analysis of gravity anomalies of sedimentary basins by an asymmetrical trapezoidal model with quadratic density function” by D. B. Rao in GEOPHYSICS (55, 226-231).
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Journal Article

Analysis of gravity anomalies of sedimentary basins by an asymmetrical trapezoidal model with quadratic density function Available to Purchase

D. Bhaskara Rao
Journal: Geophysics
Published: 01 February 1990
Geophysics (1990) 55 (2): 226–231.
DOI: https://doi.org/10.1190/1.1442830
... the values of the objective function, damping parameter, and various parameters of the model with respect to iteration number; the results are superior to those obtained when using constant density contrasts. In addition, I apply the method in the interpretation of gravity anomalies over the San Jacinto...
View PDF for article title, Analysis of gravity anomalies of sedimentary basins by an asymmetrical trapezoidal model with quadratic density function
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Journal Article

Concept of effective density; key to gravity depth determinations for sedimentary basins Available to Purchase

Vadim A. Litinsky
Journal: Geophysics
Published: 01 November 1989
Geophysics (1989) 54 (11): 1474–1482.
DOI: https://doi.org/10.1190/1.1442611
... the depths of basins from gravity data for the San Jacinto graben, California, and the Tucson basin, southern Arizona. The hyperbolic functions are more reliable and realistic than exponential ones. The effective density contrast of sediments filling the Tucson basin and density-depth dependence were...
View PDF for article title, Concept of effective density; key to gravity depth determinations for sedimentary basins
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(a) Changes in the residual variance along the iterative process for inverting the San Jacinto graben data using a density model similar to Fett (1968). (b) The variation of density contrast with depth assumed in this study (thin line) is compared with the one inferred by Fett (1968) from a seismic refraction survey (thick stepping line). (c) Inferred geometry of the San Jacinto graben. (d) Observed (filled circles) and computed (line) gravity anomaly. (e) Misfit between observed and computed anomalies.

(a) Changes in the residual variance along the iterative process for invert... Available to Purchase

Published: 01 January 2003
F IG . 4. (a) Changes in the residual variance along the iterative process for inverting the San Jacinto graben data using a density model similar to Fett (1968) . (b) The variation of density contrast with depth assumed in this study (thin line) is compared with the one inferred by Fett (1968
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Variable density-contrast curves approximated using fourth-order polynomial density-contrast functions. The dashed line denotes the hyperbolic density-contrast curve in San Jacinto Graben (Rao et al., 1995), the solid line denotes the exponential density-contrast curve in San Jacinto Graben (Chai and Hinze, 1988), and the dotted-dashed line denotes the parabolic density-contrast curve in the Los Angeles Basin (Chakravarthi et al., 2002). The rectangles, stars, and triangles denote the curves of fourth-order polynomial functions with different coefficients, respectively (listed in Table 1).

Variable density-contrast curves approximated using fourth-order polynomial... Available to Purchase

Published: 16 May 2017
Figure 1. Variable density-contrast curves approximated using fourth-order polynomial density-contrast functions. The dashed line denotes the hyperbolic density-contrast curve in San Jacinto Graben ( Rao et al., 1995 ), the solid line denotes the exponential density-contrast curve in San Jacinto
Image
(a) Changes in the residual variance along the iterative process for inverting the San Jacinto graben gravity data using a density model similar to Cordell (1973). (b) The polynomial density–depth model of this study. (c) Inferred geometry of the San Jacinto graben after the eighth iteration (thin line) and after the fiftieth iteration (thick line). (d) Observed (filled circles) and computed gravity anomaly after the eighth iteration (thin line); the thin line overlapping the observed gravity was obtained after the fiftieth iteration. (e) Misfit between observed and computed anomalies after the fiftieth iteration.

(a) Changes in the residual variance along the iterative process for invert... Available to Purchase

Published: 01 January 2003
F IG . 2. (a) Changes in the residual variance along the iterative process for inverting the San Jacinto graben gravity data using a density model similar to Cordell (1973) . (b) The polynomial density–depth model of this study. (c) Inferred geometry of the San Jacinto graben after the eighth