Journal of Geophysical Research: Solid Earth Archives - Page 15 of 29

Two images comparing a high-resolution pore network in rock and a reconstruction of the same by the machine learning model.

Reconstructing Rocks with Machine Learning

by D. O'Malley 12 July 20213 October 2022

Machine learning can be used to accurately reconstruct high-resolution, 3D images of rocks from 2D cross-sections, which opens the door to more detailed simulations.

Editors' Highlights

Previous Intra-oceanic Subduction Found Beneath South America?

by M. Assumpção 9 July 202127 January 2023

Newly mapped fast velocity slabs in the lower mantle may be remnants of westward dipping intra-oceanic subduction, before flipping to the present eastward subduction beneath South America at 85 Ma.

Two plots comparing data fits for initial and recovered models.

Editors' Highlights

Improved Seismic Imaging Via Optimal Transport Theory

by Michael Bostock 7 July 202110 March 2022

Seismic waveform inversion is inherently non-linear. New objective functions based on optimal transport theory mitigate nonlinearity yielding stable solutions without need for accurate initial models.

Lava that erupted from the Juan de Fuca Ridge formed these pillow and sheet flow basaltic rocks on the seafloor off the coast of Oregon.

Research Spotlights

Magma Pockets Lie Stacked Beneath Juan de Fuca Ridge

by Sarah Stanley 14 June 202127 October 2021

Analysis of new imaging data suggests that vertically stacked magma chambers are short-lived and contribute to eruptions.

Aftermath of the 2011 Tōhoku-oki earthquake in Japan

Research Spotlights

A New Approach to Calculate Earthquake Slip Distributions

by Morgan Rehnberg 4 June 202124 May 2022

A transdimensional, probabilistic approach is more flexible than traditional least squares fits and provides better handling of sharply varying slip distributions.

Top panel is a world map showing global distribution of submarine volcanoes. Bottom panel is a plot showing types of available recordings of submarine eruptions since the first eruption recorded in 1939.

Editors' Highlights

A Comprehensive Review of Submarine Volcano Seismoacoustics

by Gregory P. Waite 19 May 202111 May 2022

Although most of Earth’s lava erupts beneath the oceans, submarine volcanoes are comparatively understudied, but a new review of submarine volcano seismoacoustics provides a framework for future work.