Petrologists and experimental petrologists

Jakob Sederholm

Jakob Johannes Sederholm (1863–1934) was a Finnish geologist who directed the Geological Commission of Finland and, through his 1907 monograph Om granit och gnejs, founded the study of migmatites.

James Burleigh Thompson (1921–2011) was an American metamorphic petrologist and mineralogist at Harvard University who applied chemical thermodynamics to rocks and was elected to the National Academy of Sciences in 1967.

James Furman Kemp

James Furman Kemp (1859–1926) was an American geologist and Columbia University professor known for applying petrography to economic geology and the origin of ore deposits.

Jethro Teall

Jethro Teall (1849–1924) was a British geologist who wrote the landmark British Petrography (1888) and directed the Geological Survey of Great Britain from 1901 to 1914.

Johan Herman Lie Vogt

Johan Herman Lie Vogt (1858–1932) was a Norwegian geologist and metallurgist who applied physical chemistry to magmatic melts and helped establish the magmatic-segregation hypothesis for nickel-copper sulfide ores.

John Flett (Scottish geologist)

John Smith Flett (1869–1947) was a Scottish physician-turned-geologist who directed the Geological Survey of Great Britain from 1920 to 1935 and studied the Old Red Sandstone of Orkney.

John Wesley Judd

John Wesley Judd (1840–1916) was a British geologist and petrographer who established the volcanic origin of the Hebridean lava plateaus and taught at the Royal School of Mines.

Joseph P. Iddings

Joseph P. Iddings (1857–1920) was an American petrologist who worked for the U.S. Geological Survey, deciphered Yellowstone's igneous geology, and co-created the C.I.P.W. classification of igneous rocks.

Louis V. Pirsson

Louis V. Pirsson was an American geologist and petrologist, professor at Yale's Sheffield Scientific School, and co-developer of the quantitative classification of igneous rocks published in 1902 and 1903.

Marc M. Hirschmann

Marc M. Hirschmann is an American experimental petrologist and geochemist at the University of Minnesota, known for work on mantle melting and deep Earth cycles of water and carbon.

Nikolai Sobolev (Николай Владимирович Соболев)

Nikolai Sobolev (Николай Владимирович Соболев) was a Russian mineralogist and petrologist in Novosibirsk, an Academician best known for proving diamond inclusions are syngenetic and opening ultrahigh-pressure metamorphic diamond study.

Nikolay Sobolev

Nikolay Vladimirovich Sobolev (Соболев Николай Владимирович; 1935–2022) was a Soviet and Russian mineralogist and petrologist in Novosibirsk known for work on diamonds, kimberlites, and ultrahigh-pressure metamorphism.

Norman L. Bowen

Norman L. Bowen (1887–1956) was a Canadian experimental petrologist whose 1922 reaction series showed that many igneous rocks crystallize from one parent magma; his 1928 book established physical chemistry as petrology's basis.

Orville Frank Tuttle

Orville Frank Tuttle (1916–1983) was an American experimental petrologist who showed that granite forms from a water-bearing melt and designed the Tuttle bomb pressure vessel.

Pentti Eskola

Pentti Eskola (1883–1964) was a Finnish geologist and petrologist, professor at the University of Helsinki, who originated the metamorphic facies concept and won the Wollaston Medal.

Peter B. Kelemen

Peter B. Kelemen is an American petrologist and Arthur D. Storke Professor at Columbia's Lamont-Doherty Earth Observatory, elected to the National Academy of Sciences in 2014.

Peter J. Wyllie

Peter J. Wyllie (P. J. Wyllie) is an experimental petrologist known for laboratory studies of magmas and volatiles, and was Professor of Geology at Caltech from 1983 to 1999.

Peter John Wyllie

Peter John Wyllie, born 1930 in London, is a British-born experimental petrologist and Caltech professor emeritus known for laboratory work on magma formation, granite genesis, and carbonatite magmas.

Reginald Aldworth Daly

Reginald Aldworth Daly (1871–1957) was a Canadian-born American petrologist who spent most of his career at Harvard University and is best known for the theory of magmatic stoping.

Robert G. Coleman

Robert Griffen Coleman was an American geologist at the U.S. Geological Survey and Stanford University, known for his 1977 monograph Ophiolites, Ancient Oceanic Lithosphere? and elected to the National Academy of Sciences in 1980.

Stephen E. Haggerty

Stephen E. Haggerty was a mantle petrologist and diamond geologist who spent most of his career at the University of Massachusetts Amherst, studying diamonds and Earth's upper mantle.

Suzanne Mahlburg Kay

Suzanne Mahlburg Kay is an American igneous petrologist and geochemist, a Cornell professor emerita known for four decades of research on Andean magmatism and the 2023 Penrose Medal.

Ted Ringwood

Ted Ringwood (1930–1993) was an Australian geochemist and geophysicist who, working at the Australian National University from 1958, proposed the pyrolite model of mantle composition.

Thomas George Bonney

Thomas George Bonney (1833–1923) was an English geologist and Anglican clergyman who pioneered the microscopic study of rocks in Britain and taught geology at Cambridge and University College London.

Timothy L. Grove

Timothy L. Grove is an American experimental petrologist and MIT professor emeritus known for showing that Ring of Fire magmas hold far more water than thought.

W. Gary Ernst

W. Gary Ernst, full name Wallace Gary Ernst, is an American metamorphic petrologist and Stanford emeritus professor, a pioneer in documenting high-pressure and ultrahigh-pressure metamorphism in ancient subduction zones.

Waldemar Christofer Brøgger

Waldemar Christofer Brøgger (1851–1940) was a Norwegian geologist and mineralogist who pioneered magmatic differentiation theory through decades of study of the Oslo region's Permian igneous rocks.