David A. D. Evans is an American professor of

geology Geology (). is a branch of natural science concerned with the Earth and other astronomical objects, the rocks of which they are composed, and the processes by which they change over time. Modern geology significantly overlaps all other Earth ...

and

geophysics Geophysics () is a subject of natural science concerned with the physical processes and Physical property, properties of Earth and its surrounding space environment, and the use of quantitative methods for their analysis. Geophysicists conduct i ...

Yale University Yale University is a Private university, private Ivy League research university in New Haven, Connecticut, United States. Founded in 1701, Yale is the List of Colonial Colleges, third-oldest institution of higher education in the United Stat ...

. He works on quantitative reconstruction of supercontinents. He is involved in the

Snowball Earth The Snowball Earth is a historical geology, geohistorical hypothesis that proposes that during one or more of Earth's greenhouse and icehouse Earth, icehouse climates, the planet's planetary surface, surface became nearly entirely freezing, fr ...

theory of Precambrian ice ages by demonstrating that the magnetic latitudes of ancient ice deposits were tropical. He is also the head of Berkeley College, one of Yale's fourteen residential colleges.

Biography

Evans was born and raised in

Milwaukee, Wisconsin Milwaukee is the List of cities in Wisconsin, most populous city in the U.S. state of Wisconsin. Located on the western shore of Lake Michigan, it is the List of United States cities by population, 31st-most populous city in the United States ...

, the second child of a lawyer and a homemaker. He attended Nicolet High School in Milwaukee. He received his undergraduate degree in geology and geophysics from Yale College in 1992. He completed his graduate work at the

California Institute of Technology The California Institute of Technology (branded as Caltech) is a private research university in Pasadena, California, United States. The university is responsible for many modern scientific advancements and is among a small group of institutes ...

. He is married to Lely Dai Evans, with children Corinne (born 2002) and Jamie (born 2003).

Career

Using

paleomagnetism Paleomagnetism (occasionally palaeomagnetism) is the study of prehistoric Earth's magnetic fields recorded in rocks, sediment, or archeological materials. Geophysicists who specialize in paleomagnetism are called ''paleomagnetists.'' Certain ...

of rocks from South Africa, Australia, Canada, Brazil, Russia and China, Evans has worked to reassemble the configuration of supercontinents that preceded

Pangea Pangaea or Pangea ( ) was a supercontinent that existed during the late Paleozoic and early Mesozoic eras. It assembled from the earlier continental units of Gondwana, Euramerica and Siberia (continent), Siberia during the Carboniferous period ...

. He was a member of drilling projects of the Kaapvaal craton with the Agouron institute for geobiology, and a member of the scientific team to develop a large igneous province global "barcode" record of plume magmatism on Earth. He has also contributed primary data demonstrating that ancient ice ages had continental ice sheets reaching tropical latitudes, which has been incorporated into the Snowball Earth theory of the planet's long term paleoclimate. Evans is involved with the latest efforts at reconstructing the history of supercontinents on Earth through the last three billion years. He is the Director of Undergraduate Studies in the Department of Geology and Geophysics at Yale University; and the current coordinator of field student expeditions to locations including Norway, Queensland, Australia, British Columbia, Canada, New Zealand, and South Africa, as well as undergraduate excursions to Sicily and Barbados. He has spent sabbatical leaves in Taiwan and Australia, where he studied modern and ancient mountain building processes. Evans is a 2002 honoree of the Packard Fellowship in Science and Engineering, and a finalist for the Blavatnik Awards for young scientists.

Interests

Evans musical interests include Bela Fleck and Victor Wooten, Ludwig van Beethoven, Public Enemy, and Claude Debussy. At Yale, he has performed with the Berkeley College Orchestra as a bassist, both as an undergraduate student and a professor. He is known to colleagues and students as 'Majestic D,' his alter ego who infuses hip hop culture with educational geology themes. He is fluent in German and proficient in Chinese.

Selected bibliography

* * * * * * *

References

External links