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Paul Asimow

Editor of Geochemistry, Geophysics, Geosystems

Diagram of various mantle plume behaviors.
Posted inEditors' Highlights

Modeling Mantle Dynamics as the Earth Slowly Cools

by Paul Asimow 19 February 202511 February 2025

An update of the convection code ASPECT enables full coupling of plume dynamics with buoyancy effects of transition zone phase relations, showing how early layering gave way to whole-mantle plumes.

2 graphs from the paper.
Posted inEditors' Highlights

Machine Learning for Geochemists Who Don’t Want to Code 

by Paul Asimow 9 February 20249 February 2024

Geochemistry π is an easy-to-use step-by-step interface to carry out common machine learning tasks on geochemical data, including regression, clustering, classification, and dimension-reduction.

Map of study area with symbols.
Posted inEditors' Highlights

Machine Learning Identifies Source Volcanoes of Ash Deposits

by Paul Asimow 8 November 20236 November 2023

Tracing ash layers from explosive eruptions back to their source volcanoes is needed to evaluate hazards to population and aviation, a problem addressed by a new machine learning classification method.

Diagram from the study
Posted inEditors' Highlights

Piecing Together the Roots of the Ancient Australian Continent

by Paul Asimow 25 October 202326 October 2023

Mineral compositions from numerous volcanic rocks that sample the mantle keel beneath Western Australia’s Kimberley Craton reveal the temperature and mineralogy that explain its long-lived stability.

Photo showing technologies for monitoring volcanic gas emissions.
Posted inEditors' Highlights

Send in the Drones: Safely Monitoring Volcanic Gas Emissions

by Paul Asimow 8 June 20238 June 2023

New drone technology was combined with satellite and ground-based data to improve volcanic gas flux monitoring at the remote Bagana Volcano in Papua New Guinea.

World map
Posted inEditors' Highlights

Machine Learning Looks Anew at Isotope Ratios in Oceanic Basalts

by Paul Asimow 25 October 202224 October 2022

While past attempts to define isotopic endmembers and assign them a geodynamic significance ended in controversy, a machine-learning clustering algorithm offers a solution to this classical problem.

A diagram and a graph showing how ocean island eruptions are much more likely to exhibit SO2 degassing and deformation.
Posted inEditors' Highlights

Why Do Arc Volcanoes Deform Less Than Ocean Island Volcanoes?

by Paul Asimow 15 August 202215 November 2022

Volcanic ground deformation is not simply correlated with erupted volume. Researchers propose that high concentrations of magmatic volatiles make systems more compressible and suppress deformation.

Two phase diagrams calculated by (a) Perple_X and (b) the new MAGEMin software.
Posted inEditors' Highlights

A New, Fast Computational Tool for Magmatic Phase Equilibria

by Paul Asimow 11 August 202222 December 2022

Thermodynamic calculations in multiphase, multicomponent magmatic systems can be slow and buggy. A new parallel architecture solves the free energy minimization problem much faster than alternatives.

Photograph of a volcano erupting.
Posted inEditors' Vox

Dynamics of Volcanic Processes

by Olivier Roche, Yosuke Aoki, Nikolai Bagdassarov, Michael Heap, Sigrun Hreinsdottir, Qinghua Huang, Daniel Pastor-Galán, Michael Poland, Maria Sachpazi, Fang-Zhen Teng, Gregory Waite, Marie Edmonds, Paul Asimow, Minghua Zhang and Graziella Caprarelli 6 July 202220 September 2022

A new cross-journal special collection invites contributions on modern approaches used to investigate dynamics of volcanic processes.

A representation of the “plumbing system” underneath a volcano, with multiple reservoirs at different depths in the crust where magma may be stored.
Posted inEditors' Highlights

Machine Learning Helps See into a Volcano’s Depths

by Paul Asimow 27 April 202215 November 2022

How big might future volcanic eruptions be? Crystals carry information to answer this and machine learning methods can visualize and interpret this multidimensional data.

A view of a Washington, D.C., skyline from the Potomac River at night. The Lincoln Memorial (at left) and the Washington Monument (at right) are lit against a purple sky. Over the water of the Potomac appear the text “#AGU24 coverage from Eos.”

Features from AGU Publications

Research Spotlights

Mapping the Ocean Floor with Ancient Tides

6 May 20256 May 2025
Editors' Highlights

First Benchmarking System of Global Hydrological Models

7 May 20257 May 2025
Editors' Vox

Decoding Crop Evapotranspiration

6 May 20256 May 2025
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