Subducted slabs beneath the eastern Indonesia–Tonga region: insights from tomography

  title={Subducted slabs beneath the eastern Indonesia–Tonga region: insights from tomography},
  author={R. Hall and Wim Spakman},
  journal={Earth and Planetary Science Letters},

Figures from this paper

Oceanic crust in the mid-mantle beneath west-central Pacific subduction zones: evidence from S to P converted waveforms

SUMMARY The fate of subducted slabs is enigmatic, yet intriguing. We analyse seismic arrivals at ∼ 20– 50 s after the direct P wave in an array in northeast China (NECESSArray) recordings of four

Mantle constraints on the plate tectonic evolution of the Tonga–Kermadec–Hikurangi subduction zone and the South Fiji Basin region

The Tonga–Kermadec–Hikurangi subduction zone is a major plate boundary in the Southwest Pacific region, where the Pacific plate subducts westward underneath the Australian plate. Considerable

Subduction history of the Tethyan region derived from seismic tomography and tectonic reconstructions

[1] In the mantle underneath the Tethyan suture zone, large volumes of positive velocity anomalies have been imaged by seismic tomography and interpreted as the present-day signature of subducted

Interrelation of the stagnant slab, Ontong Java Plateau, and intraplate volcanism as inferred from seismic tomography

The seismological structure beneath the equatorial Melanesian region, where is tectonically unique because an immense oceanic plateau, a volcanic chain and subduction zones meet, is investigated using data collected from an approximately 2-year-long seismic experiment around the Ontong Java Plateau.

When slabs collide: A tectonic assessment of deep earthquakes in the Tonga-Vanuatu region

An unusual group of more than 100 earthquakes is located ∼600 km beneath the North Fiji Basin in the southwest Pacific Ocean. These earthquakes are attributed to seismicity within detached segments



Tomographic and geological constraints on subduction along the eastern Sundaland continental margin (South-East Asia)

The SE Asian region is characterised by the active subduction of Cenozoic marginal basins. A new tomographic model interpreted in the light of geological data, provides details on the geometry of the

Complex morphology of subducted lithosphere in the mantle beneath the Tonga trench

AT the Tonga trench, old Pacific sea floor subducts at a rapid rate below the Indo-Australia plate, generating most of the world's deep earthquakes (focal depth >300 km)1,2 and producing a deep slab

Geodetic observations of very rapid convergence and back-arc extension at the Tonga arc

THE Earth's most active zone of mantle seismicity arises from the subduction of the Pacific plate at the Tonga trench1. It is not known why this slab generates so many more earthquakes than other

Tectonics of the Indonesian region

The plate-tectonic evolution of a region can be deduced by following the as­ sumptions that subduction zones are characterized by ophiolite, melange, wildflysch, and blueschist, that intermediate and

Mesozoic plate-motion history below the northeast Pacific Ocean from seismic images of the subducted Farallon slab

A three-dimensional spherical computer model of mantle convection is used to show that seismic images of the subducted Farallon plate provide strong evidence for a Mesozoic period of low-angle subduction under North America.

Seismotectonics of New Guinea: A model for arc reversal following arc-continent collision

The structure and evolution of the northern New Guinea collision zone is deduced from International Seismological Center (ISC) seismicity (1964–1985), new and previously published focal mechanisms

Tectonic setting of Western Pacific marginal basins