Researchers in geology, geophysics, geochemistry, and hydrology

Martin J. Whitehouse

Martin J. Whitehouse is a British-born isotope geochemist and professor at the Swedish Museum of Natural History in Stockholm, where he has directed the NordSIMS ion microprobe facility since 2000.

Martin Menzies

Martin A. Menzies is a British isotope geochemist and volcanologist, a professor at Royal Holloway, University of London, known since 1980 for work on the enriched mantle.

Martinus Theodorus van Genuchten

Martinus Theodorus ("Rien") van Genuchten, born 1945 in the Netherlands, is a Dutch soil hydrologist whose 1980 equation for unsaturated soils has gathered more than 30,000 citations.

Martyn Clark

Martyn Clark is a hydrologist and Canada Research Chair at the University of Calgary, known for the CAMELS data set and the FUSE and SUMMA modeling frameworks.

Mary Catherine Hill

Mary Catherine Hill is an American hydrologist and University of Kansas professor who spent 33 years at the USGS developing MODFLOW, the world's most widely used groundwater model.

Mary Lou Zoback

Mary Lou Zoback is an American geophysicist and seismologist known for the World Stress Map, a 28-year USGS career, and election to the National Academy of Sciences in 1995.

Matthew G. Jackson

Matthew G. Jackson is an American geochemist who uses isotope geochemistry to study Earth's mantle, known for finding Earth's oldest mantle material beneath Baffin Island.

Matthew J. Fouch

Matthew J. Fouch is an American geophysicist known for seismic imaging of the lithosphere and upper mantle, who received the 2006 PECASE award while at Arizona State University.

Matthew Kirwan

Matthew Kirwan is a coastal wetland scientist and eco-geomorphologist who is Professor and Chair of Coastal & Ocean Processes at the Virginia Institute of Marine Science.

Matthew Rodell

Matthew Rodell is a hydrologist at NASA's Goddard Space Flight Center who measures groundwater depletion from orbit using GRACE satellites and leads the Global Land Data Assimilation System.

Maurice Gignoux

Maurice Gignoux (1881–1955) was a French geologist who directed the geology laboratory of the University of Grenoble for over 25 years and wrote Géologie stratigraphique, translated worldwide.

Maurice Lugeon

Maurice Lugeon (1870–1953) was a Swiss geologist based in Lausanne, chief proponent of the nappe theory of Alpine tectonics and founder of the Lugeon test for rock permeability.

Max L. Coleman is an isotope geochemist, Emeritus Professor at the University of Reading and a researcher at NASA's Jet Propulsion Laboratory working on stable-isotope biosignatures and the search for life on Mars.

Max Wyss

Max Wyss is a seismologist, Caltech PhD of 1970 and Wadati Professor Emeritus at the University of Alaska Fairbanks, known for his 1981 multiple asperity model for earthquake prediction.

Merril Eisenbud

Merril Eisenbud (1915–1997) was an American environmental health scientist, founding director of the Atomic Energy Commission's Health and Safety Laboratory, author of Environmental Radioactivity, and New York City's first Environmental Protection Administrator.

Michael A. Wulder

Michael A. Wulder is a Canadian senior research scientist with the Canadian Forest Service in Victoria, British Columbia, known for national forest mapping using Landsat satellite data.

Michael F. Hochella

Michael F. Hochella, also known as M. F. Hochella, is an American Earth scientist who helped establish nanogeoscience and was elected to the National Academy of Sciences in 2026.

Michael Gurnis

Michael Gurnis is a geophysicist and Caltech's Smits Professor of Geophysics, known for showing that mantle convection and subduction drive dynamic topography and the flooding of continents.

Michael I. Bird

Michael I. Bird, also published as Michael Bird, is an isotope geochemist and Distinguished Professor at James Cook University's Cairns campus, known for the pyrogenic carbon cycle.

Michael L. Bender

Michael L. Bender is an American geochemist known for pioneering ice core gas-isotope geochemistry, a National Academy of Sciences member who taught at Princeton from 1997 to 2015.

Sep 20, 2026

Michael Manga

Michael Manga is a Canadian-born geophysicist and volcanologist at the University of California, Berkeley, known for applying fluid dynamics to volcanoes, earthquakes, groundwater, and water inside Mars.

Michael P. Lamb

Michael P. Lamb is a geomorphologist and professor of geology at the California Institute of Technology, where he has led the Earth Surface Dynamics Laboratory since 2009.

Michael R. Rampino

Michael Rampino is an earth and planetary scientist at New York University, on its faculty since 1985, known for the Shiva hypothesis of cyclic comet-impact extinctions.

Mike Archer (Australian paleontologist)

Mike Archer is an Australian paleontologist known for his work on the evolution of Australian marsupials and monotremes and for developing the Riversleigh fossil deposits in Queensland.

Mikhail Sadovsky

Mikhail Alexandrovich Sadovsky (Михаил Александрович Садовский; 1904–1994) was a Soviet geophysicist who led physical measurements at the first Soviet atomic bomb test and derived the Sadovsky formulas.

Milton Nunn Bramlette

Milton Nunn Bramlette (1896–1977) was an American geologist and professor at the Scripps Institution of Oceanography, known for pioneering the use of calcareous nannofossils to date ocean sediments.

Minik T. Rosing

Minik T. Rosing is a Greenlandic-Danish geologist and professor at the University of Copenhagen, known for 1999 carbon-isotope evidence of life in Greenland's oldest rocks.

Minze Stuiver

Minze Stuiver was a Dutch-born radiocarbon scientist who founded and directed the Quaternary Isotope Laboratory at the University of Washington and created the CALIB calibration software.

Mordeckai Magaritz

Mordeckai Magaritz (1944–1993) was an Israeli isotope geochemist at the Weizmann Institute of Science in Rehovot, known for carbon-isotope studies of geological boundaries, Negev Desert palaeoclimate, and Israel's coastal aquifers.