2026 John Maclennan: Earth Science Researcher – H-Index, Publications & Awards

Discipline name	D-Index	World Ranking	Current World Ranking	National Ranking	Current National Ranking	Publications	Citations
Earth Science	53	2949	2692	333	309	177	7780

John Maclennan publication distribution in Earth Science in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Earth Science in 2026. The highlighted bar marks where John Maclennan sits on this spectrum.

38 publications 603+

This scientist: 177 publications — 53rd percentile

53% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 603 publications or more.

John Maclennan D-index placement in Earth Science in 2026

The chart shows the D-index (discipline H-index) distribution of Earth Science scientists ranked by Research.com in 2026. The highlighted bar marks where John Maclennan sits on this spectrum.

30 D-Index 106+

This scientist: 53 D-Index — 70th percentile

70% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 106 D-Index or more.

Overview

John Maclennan is affiliated with the University of Cambridge in the United Kingdom. Their research predominantly lies within the field of Earth and Planetary Sciences, with a particular focus on geophysics, geological and geochemical analysis, and related subfields. Their body of work covers a wide variety of topics relevant to understanding volcanic processes, tectonics, and the geochemical behavior of Earth's interior.

Maclennan has published extensively, with a notable concentration of work appearing in journals such as Geochemistry Geophysics Geosystems, Nature Communications, Geochimica et Cosmochimica Acta, and Earth and Planetary Science Letters. These venues reflect an emphasis on geochemical and geophysical investigations.

Recent papers authored or co-authored by Maclennan include:

Rapid shifting of a deep magmatic source at Fagradalsfjall volcano, Iceland (2022), published in Nature
Global influence of mantle temperature and plate thickness on intraplate volcanism (2021), published in Nature Communications
Reconstructing Magma Storage Depths for the 2018 Kılauean Eruption From Melt Inclusion CO₂ Contents: The Importance of Vapor Bubbles (2020), published in Geochemistry Geophysics Geosystems
Chalcophile elements track the fate of sulfur at Kīlauea Volcano, Hawai'i (2020), published in Geochimica et Cosmochimica Acta
Microstructural constraints on magmatic mushes under Kīlauea Volcano, Hawaiʻi (2020), published in Nature Communications

Frequent co-authors collaborating with Maclennan include:

Simon Matthews
Marie Edmonds
Enikö Bali
Guðmundur H. Guðfinnsson
Penny Wieser

The main fields of study Maclennan specializes in are:

Earth and Planetary Sciences

Subfields of particular focus encompass:

Geophysics
Atmospheric Science
Geochemistry and Petrology
Artificial Intelligence
Environmental Chemistry

Maclennan's research covers main topics that include:

Geological and Geochemical Analysis
Earthquake and Tectonic Studies
High-pressure Geophysics and Materials
Geology and Paleoclimatology Research
Geochemistry and Geologic Mapping
Geological Formations and Processes Exploration
Methane Hydrates and Related Phenomena

Best Publications

The link between volcanism and deglaciation in Iceland

J. Maclennan;M. Jull;D. McKenzie;L. Slater

305
Citations
Estimating Divergence Dates and Substitution Rates in the Drosophila Phylogeny

Darren J. Obbard;John Maclennan;Kang-Wook Kim;Andrew Rambaut

282
Citations
Drilling to gabbro in intact ocean crust

Douglas S. Wilson;Damon A.H. Teagle;Jeffrey C. Alt;Neil R. Banerjee

258
Citations
Reconstructing the deep CO2 degassing behaviour of large basaltic fissure eruptions

Margaret E. Hartley;John Maclennan;Marie Edmonds;Thor Thordarson;Thor Thordarson

208
Citations
Joint inversion of seismic and gravity data for lunar composition and thermal state

Amir Khan;Amir Khan;J. A. D. Connolly;J. Maclennan;J. Maclennan;Klaus Mosegaard

186
Citations
Concurrent Mixing and Cooling of Melts under Iceland

J. Maclennan

171
Citations
Compositional trends of Icelandic basalts: Implications for short-length scale lithological heterogeneity in mantle plumes

Oliver Shorttle;John Maclennan

170
Citations
Quantifying lithological variability in the mantle

Oliver Shorttle;John Maclennan;Sarah Lambart

146
Citations
Plume-driven upwelling under central Iceland

J. Maclennan;D. McKenzie;K. Gronvöld

146
Citations
V-shaped ridges around Iceland: Implications for spatial and temporal patterns of mantle convection

Stephen M. Jones;Nicky White;John Maclennan

142
Citations
Melt inclusions track pre-eruption storage and dehydration of magmas at Etna

S.J. Collins;D.M. Pyle;J. Maclennan

142
Citations
Lead isotope variability in olivine-hosted melt inclusions from Iceland

John Maclennan

140
Citations
Crustal accretion under northern Iceland

J. Maclennan;D. McKenzie;K. Gronvöld;L. Slater

138
Citations
Crystal–Melt Relationships and the Record of Deep Mixing and Crystallization in the ad 1783 Laki Eruption, Iceland

David A. Neave;Emma Passmore;John Maclennan;Godfrey Fitton

133
Citations
A continuous 55-million-year record of transient mantle plume activity beneath Iceland

Ross Parnell-Turner;Nicky White;Tim Henstock;Bramley J. Murton

129
Citations
Magmatic filtering of mantle compositions at mid-ocean-ridge volcanoes

Ken H. Rubin;John M. Sinton;John Maclennan;Eric Hellebrand

126
Citations
Melt mixing and crystallization under Theistareykir, northeast Iceland

J. Maclennan;D. McKenzie;K. Grönvold;N. Shimizu

124
Citations
Geochemical variability in a single flow from northern Iceland

J. Maclennan;D. McKenzie;F. Hilton;K. Gronvöld

120
Citations
Thermal models of oceanic crustal accretion: Linking geophysical, geological and petrological observations

J. Maclennan;J. Maclennan;T. Hulme;S. C. Singh

119
Citations
Melting during late-stage rifting in Afar is hot and deep.

David J. Ferguson;J. Maclennan;I. D. Bastow;D. M. Pyle

115
Citations

Frequent Co-Authors

Marie Edmonds University of Cambridge

Nicky White University of Cambridge

Karl Grönvold University of Iceland

Bramley J. Murton National Oceanography Centre

Dan McKenzie University of Cambridge

Thorvaldur Thordarson University of Iceland

Amir Khan ETH Zurich

Timothy J. Henstock University of Southampton

Robert S. White University of Cambridge

Clive Oppenheimer University of Cambridge

External Links

Personal website of John Maclennan

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