swap_horiz Thomas Alfred Jaggar Alternatives

1

Harry Hess

Harry Hammond Hess (1906–1969) was an American geologist and a professor at Princeton University. He served as an office...

American 20TH Century Historical Plate Tectonics

9.5 Brilliant

2

James Dwight Dana

James Dwight Dana (1813-1895) was an American geologist, mineralogist, and zoologist who made significant contributions...

American 19TH Century Historical Mineralogy

9.4 Excellent

3

John Ostrom

John Ostrom (1928–2005) was an American paleontologist whose work fundamentally altered modern paleontology and evolutio...

American 20TH Century Historical Theropods

9.3 Excellent

4

Charles Richter

Charles Francis Richter was an American seismologist and physicist who spent most of his career at the California Instit...

American 20TH Century Historical Seismology

9.3 Excellent

5

Harlen Bretz

Harlen Bretz was an American geologist whose fieldwork in the early 20th century led to a radical theory about the forma...

American 20TH Century Historical Geomorphology

9.3 Excellent

6

Don Anderson

Don L. Anderson was an American geophysicist and seismologist who served as a professor at the California Institute of T...

American 20TH Century Historical Geophysics

9.2 Excellent

7

Maurice Ewing

Maurice Ewing was an American geophysicist and oceanographer who founded the Lamont Geological Observatory at Columbia U...

American 20TH Century Historical Geophysics

9.1 Excellent

8

John Imbrie

John Imbrie was an American paleoceanographer who significantly advanced the understanding of Earth's climate history. H...

American 20TH Century Historical Paleoclimatology

9.1 Excellent

9

Robert Dietz

Robert Dietz (1914–1995) was an American geologist and oceanographer recognized for his contributions to marine geology...

American 20TH Century Historical Seafloor Spreading

9.0 Excellent

10

Francis Birch

American geophysicist (1903–1992) who applied high-pressure mineral physics to Earth's interior, proposing that the inne...

American 20TH Century Historical High Pressure

9.0 Excellent

11

Raymond Cecil Moore

Raymond Cecil Moore was an American geologist and paleontologist who lived from 1892 to 1974. He is best known for found...

American 20TH Century Historical Paleontology

8.9 Great

12

Donald A. Swanson

Donald A. Swanson is an American volcanologist and longtime United States Geological Survey scientist whose work include...

American 20TH Century Volcanology Hawaiian Volcanoes

8.9 Great

13

Bruce Heezen

Bruce Heezen (1924–1977) was an American oceanographer and marine geologist who worked at Columbia University's Lamont G...

American 20TH Century Historical Marine Geology

8.8 Great

14

George Tilton

George Tilton was an American geochemist who co-developed the uranium-lead (U-Pb) geochronology technique in the 1950s....

American 20TH Century Historical Geochemistry

8.7 Great

15

Alexander R. McBirney

Alexander R. McBirney was an American geologist and petrologist known for experimental studies of igneous rocks and fiel...

American 20TH Century Igneous Petrology Volcanology

8.7 Great

16

David Johnston

David A. Johnston (1949–1980) was an American volcanologist with the United States Geological Survey. On May 18, 1980, h...

American 20TH Century Historical Volcanology

8.6 Great

17

E-an Zen

E-an Zen (1928–2014) was a Taiwanese-American geologist who served as a senior research geologist with the United States...

American 20TH Century Historical Usgs

8.5 Great

18

Frank Alvord Perret

Frank Alvord Perret was an American inventor and volcanologist who pioneered the use of instruments to observe and measu...

American 20TH Century Historical Observation

8.1 Great

19

Alexander McBirney

Alexander McBirney was an American volcanologist and geologist affiliated with the University of Oregon. He conducted ex...

American 20TH Century Historical Igneous Petrology

7.7 Good

20

Donald Peterson

Donald Peterson was an American scientist recognized for his valuable contributions to geological research and the broad...

American 20TH Century Historical Usgs

4.9 Poor