Gravity Anomalies and the Crust of the Earth in the Pacific Basin

Woollard, George P.; Strange, William E.

doi:10.1029/gm006p0060

Cited by 22 publications

(4 citation statements)

References 25 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…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%

See 1 more Smart Citation

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.

View full text Add to dashboard Cite

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.

show abstract

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.

View full text Add to dashboard Cite

show abstract

“…In the study, the first vertical derivative of the gravity data was calculated, then UC was applied. Then, depth transformation was performed using Wollard and Strange (1962)'s depth transformation. 3D visualization of tectonic and structural elements at a depth range of approximately 14-42 km given in Figure 3.…”

Section: Contents Research Articlesmentioning

confidence: 99%

Imaging the tectonic components under the Eastern Mediterranean and Black Sea with gravity (satellite) data

Toker¹,

Ulugergerli²

2021

Bulletin of the Mineral Research and Exploration

View full text Add to dashboard Cite

Tectonic structures in the Black Sea and the Levantine Sea were mapped using satellite gravity data. The relationship between Antalya and Cyprus arcs is revealed by the deformation traces of the arc formation. The Cyprus arc which over the slice that disappears from the South of the Anaximander seamounts to the Northeast, can traceable at the western end of the Antalya Bay. The distinction of western and eastern basins in the Black Sea is also mapped. Due to the low spatial resolution, additional studies with higher resolution are required.

show abstract

“…We determine the Moho depth using two formulas proposed by Demenitskaya (1958) and Woollard and Strange (1962). We compare these results with those obtained using the proposed formula below (Woollard 1959) (Table 1).…”

Section: Moho Morphologymentioning

confidence: 99%

Evidence for a new regional NW–SE fault and crustal structure in Tunisia derived from gravity data

Arfaoui

Reid

Inoubli

2015

Geophysical Prospecting

View full text Add to dashboard Cite

A new Tunisian gravity map interpretation based on the Gaussian filtered residual anomaly, total horizontal gradient, and Moho discontinuity morphology established from gravity data exhibit a new regional northwest–southeast fault extending from Eastern Kairouan to Ghardimaou (Algeria–Tunisia Boundary). It presents a horizontal gradient maximum lineament that terminates the north–south Jurassic structures in the Kairouan plain. Further, this interpretation reveals other known fault systems and crustal structures in Tunisia. The new regional northwest–southeast fault constitutes with the north–south axis and Gafsa–Jefara faults the deepest faults coinciding with the Moho flexures, which had an important role in their initiation. They constitute the border intra‐continental crust faults of the Mesozoic rift. The newly recognized deep fault has critical implications for mineral and petroleum perspectives.

show abstract

Gravity Anomalies and the Crust of the Earth in the Pacific Basin

Cited by 22 publications

References 25 publications

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

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

Imaging the tectonic components under the Eastern Mediterranean and Black Sea with gravity (satellite) data

Evidence for a new regional NW–SE fault and crustal structure in Tunisia derived from gravity data

Contact Info

Product

Resources

About