Norman H. Sleep (born 14 February 1945) is an American geophysicist and professor of geophysics at Stanford University. He has done internationally recognized research on plate tectonics and many other areas of geology and planetology.
In 1967, Sleep graduated with a B.S. in mathematics from Michigan State University. He then studied geophysics at Massachusetts Institute of Technology (MIT), where he earned his master's degree in 1969 and a doctorate in geophysics in 1973. After a brief period as a postdoctoral research associate at MIT, he joined Northwestern University in 1973 where he was an assistant professor of geophysics until 1979. He was from 1979 to 1984 an associate professor and from 1984 to 1993 a full professor of geophysics and geology at Stanford University. Since 1993 he has been a professor of geophysics there.
Researchedit
Since 1969, Sleep has done research on mid-ocean ridges. He first demonstrated the temperature dependence of the ratio of water depth to the age of the underlying ocean floor and developed models that showed the great influence of the circulation of hydrothermalfluids on the chemistry of the seawater and the structure of the ridges. In the 1970s he explored the formation of stretched continental margins. He measured the subsidence rate, which can be determined from thickness and age of deposited sedimentary rock, and found that the subsidence history was not affected by the subsidence history of oceanic crust.
Sleep was the first to realize that the stratigraphic sequence on passive continental margins could be modeled by deposition on a thermally subsiding rifted margin. His idea also had considerable implications for hydrocarbon exploration along margins and in continental interior basins.[1]
Further areas of research were island arcs and subduction zones, the composition of the atmosphere, as well as impact events affecting the entire planet. In addition, he explored the mechanisms of geological disturbances, and was able to prove the great influence of water on their movements.
In the mid-1970s, he began research on magmatism, and until the early 1990s, dealt with the temperature history of the Earth's mantle. He also studied the formation and composition of mantle plumes, as they exist under Hawaii. Until the mid-1990s, he worked on transferring his findings in the field of magmatism to Mars and, with Roger J. Phillips, developed a model for the Tharsis region.[1]
Honors and awardsedit
Sleep has received numerous honors and awards: [2]
Norman H. Sleep and Kazuya Fujita: "Principles of Geophysics." John Wiley and Sons, 1997, ISBN978-0-86542-076-2, 608 pages.
with Euan G. Nisbet: "The habitat and nature of early life." Nature 409, no. 6823 (2001): 1083–1091, doi:10.1038/35059210
with Kevin Zahnle: "Carbon dioxide cycling and implications for climate on ancient Earth." Journal of Geophysical Research: Planets 106, no. E1 (2001): 1373–1399, doi:10.1029/2000JE001247
with K. Zahnle and Philip S. Neuhoff: "Initiation of clement surface conditions on the earliest Earth." Proceedings of the National Academy of Sciences of the United States of America 98, no. 7 (2001): 3666–3672, doi:10.1073/pnas.071045698
with A. Meibom, Th Fridriksson, R. G. Coleman, and D. K. Bird: "H2-rich fluids from serpentinization: geochemical and biotic implications." Proceedings of the National Academy of Sciences of the United States of America 101, no. 35 (2004): 12818–12823, doi:10.1073/pnas.0405289101
with K. Zahnle: "Impacts and the early evolution of life." In Comets and the Origin and Evolution of Life, pp. 207–251. Springer, Berlin, Heidelberg, 2006.
with Minik T. Rosing, Dennis K. Bird, William Glassley, and Francis Albarede: "The rise of continents—An essay on the geologic consequences of photosynthesis." Paleogeography, Palaeoclimatology, Paleoecology 232, nos. 2–4 (2006): 99–113, doi:10.1016/j.palaeo.2006.01.007
with Kevin Zahnle, Nick Arndt, Charles Cockell, Alex Halliday, Euan Nisbet, and Franck Selsis: "Emergence of a habitable planet." Space Science Reviews 129, no. 1–3 (2007): 35–78, doi:10.1007/s11214-007-9225-z
with Minik T. Rosing, Dennis K. Bird, and Christian J. Bjerrum: "No climate paradox under the faint early Sun." Nature 464, no. 7289 (2010): 744–747, doi:10.1038/nature08955
with Darcy E. Ogden: "Explosive eruption of coal and basalt and the end-Permian mass extinction." Proceedings of the National Academy of Sciences of the United States of America 109, no. 1 (2012): 59–62, doi:10.1073/pnas.1118675109
Referencesedit
^ abc"Norman H. Sleep, 1998 Walter H. Bucher Medal Winner". American Geophysical Union.
^Sleep's personal homepage at Stanford University (with list of recent publications)
^"2008 Awards: Citations, Replies, Wollaston Medal - Professor Norman Sleep". The Geological Society of London.
External linksedit
"Planetary Habitability for Everybody: An Innovative E-Text (a "Web book" by Norman H. Sleep)". NASA Astrobiology Institute. 2008.[dead link] GP 25: Planetary Habitability, School of Earth Sciences, Stanford University
"NAI Director's Seminar Series: Norm Sleep (Tectonics and habitability of silicate super-earths)". YouTube. 4 June 2012.
"The Late Veneer and Earth's habitability - Norm Sleep (SETI Talks)". YouTube. 13 January 2017.
December 15, 2023
norman, sleep, norman, sleep, born, february, 1945, american, geophysicist, professor, geophysics, stanford, university, done, internationally, recognized, research, plate, tectonics, many, other, areas, geology, planetology, contents, education, career, resea. Norman H Sleep born 14 February 1945 is an American geophysicist and professor of geophysics at Stanford University He has done internationally recognized research on plate tectonics and many other areas of geology and planetology Contents 1 Education and career 2 Research 3 Honors and awards 4 Selected publications 5 References 6 External linksEducation and career editIn 1967 Sleep graduated with a B S in mathematics from Michigan State University He then studied geophysics at Massachusetts Institute of Technology MIT where he earned his master s degree in 1969 and a doctorate in geophysics in 1973 After a brief period as a postdoctoral research associate at MIT he joined Northwestern University in 1973 where he was an assistant professor of geophysics until 1979 He was from 1979 to 1984 an associate professor and from 1984 to 1993 a full professor of geophysics and geology at Stanford University Since 1993 he has been a professor of geophysics there Research editSince 1969 Sleep has done research on mid ocean ridges He first demonstrated the temperature dependence of the ratio of water depth to the age of the underlying ocean floor and developed models that showed the great influence of the circulation of hydrothermal fluids on the chemistry of the seawater and the structure of the ridges In the 1970s he explored the formation of stretched continental margins He measured the subsidence rate which can be determined from thickness and age of deposited sedimentary rock and found that the subsidence history was not affected by the subsidence history of oceanic crust Sleep was the first to realize that the stratigraphic sequence on passive continental margins could be modeled by deposition on a thermally subsiding rifted margin His idea also had considerable implications for hydrocarbon exploration along margins and in continental interior basins 1 Further areas of research were island arcs and subduction zones the composition of the atmosphere as well as impact events affecting the entire planet In addition he explored the mechanisms of geological disturbances and was able to prove the great influence of water on their movements In the mid 1970s he began research on magmatism and until the early 1990s dealt with the temperature history of the Earth s mantle He also studied the formation and composition of mantle plumes as they exist under Hawaii Until the mid 1990s he worked on transferring his findings in the field of magmatism to Mars and with Roger J Phillips developed a model for the Tharsis region 1 Honors and awards editSleep has received numerous honors and awards 2 1980 James B Macelwane Medal of the American Geophysical Union 1980 Fellow of the American Geophysical Union 1984 Fellow of the Geological Society of America 1991 George P Woollard Prize of the Geological Society of America 1993 Fellow of the American Association for the Advancement of Science 1997 Alfred Wegener Medal of the European Union of Geosciences 1998 Walter H Bucher Medal of the American Geophysical Union 1 1999 Member of the National Academy of Sciences 2008 Wollaston Medal 3 Selected publications editNorman H Sleep and Kazuya Fujita Principles of Geophysics John Wiley and Sons 1997 ISBN 978 0 86542 076 2 608 pages with Euan G Nisbet The habitat and nature of early life Nature 409 no 6823 2001 1083 1091 doi 10 1038 35059210 with Kevin Zahnle Carbon dioxide cycling and implications for climate on ancient Earth Journal of Geophysical Research Planets 106 no E1 2001 1373 1399 doi 10 1029 2000JE001247 with K Zahnle and Philip S Neuhoff Initiation of clement surface conditions on the earliest Earth Proceedings of the National Academy of Sciences of the United States of America 98 no 7 2001 3666 3672 doi 10 1073 pnas 071045698 with A Meibom Th Fridriksson R G Coleman and D K Bird H2 rich fluids from serpentinization geochemical and biotic implications Proceedings of the National Academy of Sciences of the United States of America 101 no 35 2004 12818 12823 doi 10 1073 pnas 0405289101 with K Zahnle Impacts and the early evolution of life In Comets and the Origin and Evolution of Life pp 207 251 Springer Berlin Heidelberg 2006 with Minik T Rosing Dennis K Bird William Glassley and Francis Albarede The rise of continents An essay on the geologic consequences of photosynthesis Paleogeography Palaeoclimatology Paleoecology 232 nos 2 4 2006 99 113 doi 10 1016 j palaeo 2006 01 007 with Kevin Zahnle Nick Arndt Charles Cockell Alex Halliday Euan Nisbet and Franck Selsis Emergence of a habitable planet Space Science Reviews 129 no 1 3 2007 35 78 doi 10 1007 s11214 007 9225 z with Minik T Rosing Dennis K Bird and Christian J Bjerrum No climate paradox under the faint early Sun Nature 464 no 7289 2010 744 747 doi 10 1038 nature08955 with Darcy E Ogden Explosive eruption of coal and basalt and the end Permian mass extinction Proceedings of the National Academy of Sciences of the United States of America 109 no 1 2012 59 62 doi 10 1073 pnas 1118675109References edit a b c Norman H Sleep 1998 Walter H Bucher Medal Winner American Geophysical Union Sleep s personal homepage at Stanford University with list of recent publications 2008 Awards Citations Replies Wollaston Medal Professor Norman Sleep The Geological Society of London External links edit Planetary Habitability for Everybody An Innovative E Text a Web book by Norman H Sleep NASA Astrobiology Institute 2008 dead link GP 25 Planetary Habitability School of Earth Sciences Stanford University NAI Director s Seminar Series Norm Sleep Tectonics and habitability of silicate super earths YouTube 4 June 2012 The Late Veneer and Earth s habitability Norm Sleep SETI Talks YouTube 13 January 2017 Retrieved from https en wikipedia org w index php title Norman Sleep amp oldid 1178579346, wikipedia, wiki, book, books, library,
