Crust and upper mantle structure beneath southeast Australia from ambient noise and teleseismic tomography

2016 ◽  
Vol 689 ◽  
pp. 143-156 ◽  
Author(s):  
N. Rawlinson ◽  
S. Pilia ◽  
M. Young ◽  
M. Salmon ◽  
Y. Yang
Keyword(s):  
Upper Mantle ◽  
Ambient Noise ◽  
Mantle Structure ◽  
Crust And Upper Mantle ◽  
Teleseismic Tomography ◽  
Southeast Australia ◽  
Upper Mantle Structure

Crust and upper mantle structure of North Borneo explored using surface waves from ambient noise

2020 ◽  
Author(s):  
Omry Volk ◽  
Conor Bacon ◽  
Felix Tongkul ◽  
Nick Rawlinson
Keyword(s):  
Surface Waves ◽  
Upper Mantle ◽  
Ambient Noise ◽  
Seismic Analysis ◽  
Sedimentary Basins ◽  
Mantle Structure ◽  
Crust And Upper Mantle ◽  
Phase Velocities ◽  
Upper Mantle Structure ◽  
North Borneo

<p>South-East Asia is one of the most tectonically complex regions on Earth. North Borneo in particular is home to a number of intriguing features, the formation of which is not fully understood. These include the North-West Borneo trough, the rapidly uplifted 4000m high Mt Kinabalu and the uplifted circular sedimentary basins such as the Maliau Basin. To study North Borneo's tectonics in depth we deployed a new dense temporary network of 46 broadband seismometers across the regionin a semi-regular grid pattern with approximately 40km spacing. This closely spaced network, which operated for 22 months, allows a high-resolution seismic analysis of the crust and mantle under North Borneo. Here, we use ambient noise cross-correlations to measure phase velocities of surface waves. We then use the phase velocities to analyze the crustal and upper mantle structure.</p>

Crust and Upper Mantle Structure Beneath the Eastern United States

2021 ◽  
Author(s):  
Chengping Chai ◽  
Charles Ammon ◽  
Monica Maceira ◽  
Herrmann B. Robert
Keyword(s):  
United States ◽  
Upper Mantle ◽  
Mantle Structure ◽  
Eastern United States ◽  
Crust And Upper Mantle ◽  
Upper Mantle Structure

Crust and upper mantle structure along the flank of Kōko Seamount

1980 ◽  
Vol 70 (4) ◽  
pp. 1161-1169
Author(s):  
K. Furukawa ◽  
J. F. Gettrust ◽  
L. W. Kroenke ◽  
J. F. Campbell
Keyword(s):  
Upper Mantle ◽  
Seismic Refraction ◽  
Crustal Thickness ◽  
Mantle Structure ◽  
Crust And Upper Mantle ◽  
Velocity Gradients ◽  
Upper Mantle Structure ◽  
Hawaiian Ridge ◽  
Seamount Chain ◽  
Emperor Seamount Chain

abstract Inversion of an 80-km-long reversed seismic refraction profile near the northwestern flank of Kōko Seamount indicates that the crust adjacent to the southern end of the Emperor Seamount chain is approximately 9-km thick with no dip in the refracting horizons. These data require positive P-velocity gradients in the crust and upper mantle to fit the observed amplitudes. The crustal refractor P velocities and crustal thickness found are in general agreement with those found previously for the Emperor chain and near the Hawaiian Ridge. It is inferred from our data that the tectonic mechanism which created the Emperor and Hawaiian chains was highly localized.

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