description Robert G. Coleman Overview
Robert G. Coleman was an American geologist whose research on ophiolites helped clarify how fragments of ancient oceanic lithosphere can be preserved within continental mountain belts. His work connected field observations of ultramafic and mafic rocks with the developing theory of plate tectonics, using rock assemblages and structures to reconstruct former oceanic crust and mantle. Coleman is particularly associated with the geological interpretation of ophiolite complexes and their role in understanding vanished oceans.
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What are ophiolites, the subject of Robert G. Coleman's research?
Ophiolites are fragments of oceanic lithosphere that were thrust onto continents and preserved on land. They can include mantle peridotite, gabbro, sheeted dikes, pillow lavas, and marine sediments.
How did Robert G. Coleman help plate-tectonic science?
His research connected the rock sequence in ophiolites with the structure of ancient oceanic crust. That evidence helped geologists interpret how seafloor material formed and was later emplaced on continents.
Which institutions were associated with Robert G. Coleman?
Robert G. Coleman was a professor of geology at Stanford University and also worked with the United States Geological Survey. His 1973 USGS-linked work on ophiolites reflects that research focus.
Did Robert G. Coleman study rocks besides ophiolites?
Yes, his work also covered ultramafic rocks and serpentinite, which are important for understanding the mantle and oceanic lithosphere. He continued publishing scientific books and articles after retiring from Stanford and the USGS.
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