Moho depth structure of the eastern part of the Pyrenean belt derived from gravity data

Rivero, L.; Pinto, V.; Casas, Albert

doi:10.1016/s0264-3707(01)00073-4

Cited by 33 publications

(27 citation statements)

References 22 publications

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“…H=29.98-0.0075Δg (3) Recently, these relationships have been applied successfully by several authors to gravity data (e.g., Rivero et al, 2002;Ateş et al, 2012;Maden et al, 2015). In the present study, the Moho and Conrad depths of the study area were estimated from Eqs.…”

Section: Moho Depth Estimation From Gravity Datamentioning

confidence: 99%

Investigating Moho depth, Curie Point, and heat flow variations of the Yozgat Batholith and its surrounding area, north central Anatolia,Turkey, using gravity and magnetic anomalies

Bilim¹

2017

Turkish J Earth Sci

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This paper proposes an interpretation of the Bouguer gravity and magnetic anomaly map of the Yozgat Batholith and its surrounding area (north central Anatolia) for determination of crustal and geothermal structures. In the study area, the Moho and Conrad depths based on a relationship between Bouguer gravity anomaly and seismically determined crustal thickness were estimated as 34-39 km and 19.5-21.5 km, respectively. The crustal thickness of the study area increases from west to east. The estimated Curie point depths in the study area by means of spectral analysis of the magnetic data vary between 10.4 and 19.5 km. The shallow depths indicate that the magnetization is restricted to the upper crust in the study area. In addition, the heat flow values calculated for a thermal conductivity of 2.7 W m -1 K -1 range from about 80 to 150 mWm -2 . The shallow velocity structures in central Anatolia are consistent with the estimated high heat flow values in the upper crust and associated with comparatively high negative Bouguer gravity anomalies.

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Section: Moho Depth Estimation From Gravity Datamentioning

confidence: 99%

Investigating Moho depth, Curie Point, and heat flow variations of the Yozgat Batholith and its surrounding area, north central Anatolia,Turkey, using gravity and magnetic anomalies

Bilim¹

2017

Turkish J Earth Sci

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“…The Alpine chains are associated with gravity anomaly minima. Prior gravity and seismic studies indicate that the main cause of these anomalies is a thickened crust (e.g., Salas and Casas, 1993;Suriñach and Chavez, 1996;Casas et al, 1997;Gómez-Ortiz, 2001;Rivero et al, 2002;Gómez-Ortiz et al, 2005). Gravity anomaly minima have also been linked to the Tertiary Duero and Tajo Basins.…”

Section: Gravity Datamentioning

confidence: 99%

Crustal structure from gravity signatures in the Iberian Peninsula

Gómez-Ortíz

Agarwal

Tejero

et al. 2011

Geological Society of America Bulletin

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Through two-dimensional fi ltering and spectral analysis of gravity data, we infer the density structure of the Iberia Peninsula's lithosphere (western Europe). The gravity anomaly map of the Iberian Peninsula displays long-wavelength anomaly minima related to Alpine ranges. These anomalies are primarily linked to a greater crustal thickness. Low-pass fi ltering of the anomaly map using a cutoff wavelength of 150 km was adequate for effective separation of shallow and deep sources used for computing the three-dimensional (3-D) Moho interface.

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“…When the power spectrum method is applied to the gravity data, the cut off wavenumber is fixed in regional-residual separation and, when applied to the magnetic data, the Curie depth can be estimated (MADEN and GELIS¸LI 2001). Several empirical studies on crustal structure, as determined from the relation between a Bouguer gravity anomaly (Dg) and seismically-determined crustal thickness (H) performed by several authors (WOLLARD 1959;WOLLARD and STRANGE 1962;RAM BABU 1997;HOFSTETTER et al 2000;RIVERO et al 2002), have shown that they are linearly related. A brief account of the theory on the linear relationship between Dg and H is described below.…”

Section: Methodsmentioning

confidence: 99%

“…These empirical relationships between the Bouguer anomaly (Dg) and seismically-determined crustal thickness (H) reveal that they are linearly related (WOLLARD 1959;WOLLARD and STRANGE 1962;RAM BABU 1997;HOFSTETTER et al 2000;RIVERO et al 2002). In this study, we employ the Eqs.…”

Section: Crustal Structure Of the Erzurum-horasanpasinler Basinsmentioning

confidence: 99%

Determination of the Crustal and Thermal Structure of the Erzurum-Horasan-Pasinler Basins (Eastern Türkiye) Using Gravity and Magnetic Data

Maden

Aydın

Kadirov

2014

Pure Appl. Geophys.

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The Erzurum-Horasan-Pasinler basin, which surrounds Miocene rocks, is oriented approximately E-W and is located in Eastern Anatolia (Türkiye). East Anatolia, where ophiolitic and young volcanic rocks are widespread, is situated in the Alpine-Himalayan fold-thrust fault belt. The NW-SE trending North Anatolian Transform Fault Zone and the NE-SW trending East Anatolian Transform Fault Zone, formed by the compressional regime of East Anatolia, control the main tectonics of the study region. While the Moho and Conrad depths of the study region are 43.0 and 20.9 km, respectively, the average sedimentary thickness has been determined to be 5.2 km by using the power spectrum method. On the other hand, it is found that the depth of the Moho in the region varies from 41.0 to 44.5 km and the depth of the Conrad discontinuity varies between 22 and 26 km, as computed using empirical equations. The basement of the sedimentary layer is calculated to be 6 km by using inversion results applied to the residual gravity data. The Curie point depth and average heat flow value in this region are calculated as 18.0 km and 89.1 m Wm -2 , respectively. Geotherm calculations reveal that the Moho temperature is 1,028.0°C based on the crustal model. The high heat flow values obtained are attributed to tectonic activities and melting of the lithospheric mantle caused by upwelling of the asthenosphere.

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Moho depth structure of the eastern part of the Pyrenean belt derived from gravity data

Cited by 33 publications

References 22 publications

Investigating Moho depth, Curie Point, and heat flow variations of the Yozgat Batholith and its surrounding area, north central Anatolia,Turkey, using gravity and magnetic anomalies

Investigating Moho depth, Curie Point, and heat flow variations of the Yozgat Batholith and its surrounding area, north central Anatolia,Turkey, using gravity and magnetic anomalies

Crustal structure from gravity signatures in the Iberian Peninsula

Determination of the Crustal and Thermal Structure of the Erzurum-Horasan-Pasinler Basins (Eastern Türkiye) Using Gravity and Magnetic Data

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