Maya Tolstoy

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Maya Tolstoy is a marine geophysicist known for her work on earthquakes in the deep sea. From Fall 2018 through December 2019 she was the Interim Executive Vice President and Dean of the Faculty of Arts and Sciences at Columbia University. As of 2022, she is the Maggie Walker Dean in the College of the Environment at the University of Washington.

Contents

Education and career

Tolstoy was interested in both science and theater while growing up, [1] but a fascination with earthquakes led her to a career in geoscience. [2] Tolstoy received her B.S. in geophysics from the University of Edinburgh in 1988 and earned a Ph.D. from Scripps Institution of Oceanography in 1994. [3] Following her Ph.D., she was first a postdoctoral research at Scripps Institution of Oceanography and then at Lamont–Doherty Earth Observatory. In 1996 she joined the faculty at Lamont–Doherty Earth Observatory, and was promoted to professor in 2016. [3] In January 2022 she started her position as the Maggie Walker Dean of the College of the Environment at the University of Washington. [4] [5]

Research

Tolstoy is known for her research using sound in the ocean to deep-sea earthquakes. Her early research investigated a 2006 undersea eruption on the East Pacific Rise. [6] While many of her instruments were trapped in lava, enough could be recovered to track the sequence of events that led to the eruption. [7] Her subsequent research has examined earthquakes at Axial Seamount, [8] the connections between tides and deep-sea earthquakes, [9] and the along-axis flow of fluids at the East Pacific Rise. [10] Tolstoy's research has linked changes in sea level with patterns of earthquake activity in the deep sea, [11] research which has implications for the release of carbon dioxide, a greenhouse gas, into the atmosphere. [12]

In addition to her research, Tolstoy led an initiative defining issues encountered by women in science that culminated in a 2018 report that presented issues at Columbia University, [13] and she has worked to overcome issues in unequal treatment of women and minorities in hiring for academic positions. [14] Tolstoy was also in the 2005 James Cameron film about the deep ocean Aliens of the Deep, [15] [16] and was a finalist in the 2009 astronaut interview process at NASA. [1]

Selected publications

Awards and honors

In 2009, Tolstoy received a Women of Discovery Award for her work on deep-sea exploration. [17] She was a 2012 invited speaker at the Nobel Conference, [18] and delivered the 2016 Francis Birch Lecture at the American Geophysical Union meeting. [19]

Related Research Articles

<span class="mw-page-title-main">Lake Toba</span> Crater lake located in Sumatra, Indonesia

Lake Toba is a large natural lake in North Sumatra, Indonesia, occupying the caldera of a supervolcano. The lake is located in the middle of the northern part of the island of Sumatra, with a surface elevation of about 900 metres (2,953 ft), the lake stretches from 2.88°N 98.52°E to 2.35°N 99.1°E. The lake is about 100 kilometres long, 30 kilometres (19 mi) wide, and up to 505 metres (1,657 ft) deep. It is the largest lake in Indonesia and the largest volcanic lake in the world. Toba Caldera is one of twenty Geoparks in Indonesia, and was recognised in July 2020 as one of the UNESCO Global Geoparks.

DSV <i>Alvin</i> Crewed deep-ocean research submersible

Alvin (DSV-2) is a crewed deep-ocean research submersible owned by the United States Navy and operated by the Woods Hole Oceanographic Institution (WHOI) in Woods Hole, Massachusetts. The vehicle was built by General Mills' Electronics Group in Minneapolis, Minnesota. Named to honor the prime mover and creative inspiration for the vehicle, Allyn Vine, Alvin was commissioned on 5 June 1964. The submersible is launched from the deep submergence support vessel RV Atlantis (AGOR-25), which is also owned by the U.S. Navy and operated by WHOI. The submersible has made more than 5,000 dives, carrying two scientists and a pilot, to observe the lifeforms that must cope with super-pressures and move about in total darkness, as well as exploring the wreck of Titanic. Research conducted by Alvin has been featured in nearly 2,000 scientific papers.

<span class="mw-page-title-main">Toba catastrophe theory</span> Supereruption 75,000 years ago that may have caused a global volcanic winter

The Youngest Toba eruption was a supervolcano eruption that occurred around 74,000 years ago at the site of present-day Lake Toba in Sumatra, Indonesia. It is one of the Earth's largest known explosive eruptions. The Toba catastrophe theory holds that this event caused a global volcanic winter of six to ten years and possibly a 1,000-year-long cooling episode, leading to agenetic bottleneck in humans.

<i>Emiliania huxleyi</i> Unicellular algae responsible for the formation of chalk

Emiliania huxleyi is a species of coccolithophore found in almost all ocean ecosystems from the equator to sub-polar regions, and from nutrient rich upwelling zones to nutrient poor oligotrophic waters. It is one of thousands of different photosynthetic plankton that freely drift in the photic zone of the ocean, forming the basis of virtually all marine food webs. It is studied for the extensive blooms it forms in nutrient-depleted waters after the reformation of the summer thermocline. Like other coccolithophores, E. huxleyi is a single-celled phytoplankton covered with uniquely ornamented calcite disks called coccoliths. Individual coccoliths are abundant in marine sediments although complete coccospheres are more unusual. In the case of E. huxleyi, not only the shell, but also the soft part of the organism may be recorded in sediments. It produces a group of chemical compounds that are very resistant to decomposition. These chemical compounds, known as alkenones, can be found in marine sediments long after other soft parts of the organisms have decomposed. Alkenones are most commonly used by earth scientists as a means to estimate past sea surface temperatures.

<span class="mw-page-title-main">Submarine volcano</span> Underwater vents or fissures in the Earths surface from which magma can erupt

Submarine volcanoes are underwater vents or fissures in the Earth's surface from which magma can erupt. Many submarine volcanoes are located near areas of tectonic plate formation, known as mid-ocean ridges. The volcanoes at mid-ocean ridges alone are estimated to account for 75% of the magma output on Earth. Although most submarine volcanoes are located in the depths of seas and oceans, some also exist in shallow water, and these can discharge material into the atmosphere during an eruption. The total number of submarine volcanoes is estimated to be over 1 million of which some 75,000 rise more than 1 km above the seabed. Only 119 submarine volcanoes in Earth's oceans and seas are known to have erupted during the last 11,700 years.

<span class="mw-page-title-main">Clathrate gun hypothesis</span>

The clathrate gun hypothesis is a proposed explanation for the periods of rapid warming during the Quaternary. The idea is that changes in fluxes in upper intermediate waters in the ocean caused temperature fluctuations that alternately accumulated and occasionally released methane clathrate on upper continental slopes. This would have had an immediate impact on the global temperature, as methane is a much more powerful greenhouse gas than carbon dioxide. Despite its atmospheric lifetime of around 12 years, methane's global warming potential is 72 times greater than that of carbon dioxide over 20 years, and 25 times over 100 years .These warming events would have caused the Bond Cycles and individual interstadial events, such as the Dansgaard–Oeschger interstadials.

<span class="mw-page-title-main">Juan de Fuca Ridge</span> Divergent plate boundary off the coast of the Pacific Northwest region of North America

The Juan de Fuca Ridge is a mid-ocean spreading center and divergent plate boundary located off the coast of the Pacific Northwest region of North America. The ridge separates the Pacific Plate to the west and the Juan de Fuca Plate to the east. It runs generally northward, with a length of approximately 500 kilometres (310 mi). The ridge is a section of what remains from the larger Pacific-Farallon Ridge which used to be the primary spreading center of this region, driving the Farallon Plate underneath the North American Plate through the process of plate tectonics. Today, the Juan de Fuca Ridge pushes the Juan de Fuca Plate underneath the North American plate, forming the Cascadia Subduction Zone.

<span class="mw-page-title-main">Tao-Rusyr Caldera</span> Stratovolcano with a caldera on the island of Onekotan

Tao-Rusyr Caldera is a stratovolcano located at the southern end of Onekotan Island, Kuril Islands, Russia. It has 7.5 km wide caldera formed during a catastrophic eruption less than 10,000 years ago. The waters of Kol'tsevoe Lake fill the caldera, along with a large symmetrical andesitic cone, Krenitsyn Peak, that rises as an island within the lake. This volcano was named after Captain Pyotr Krenitsyn of the Imperial Russian Navy.

<span class="mw-page-title-main">Cobb–Eickelberg Seamount chain</span> Range of undersea mountains formed by volcanic activity of the Cobb hotspot in the Pacific Ocean

The Cobb-Eickelberg seamount chain is a range of undersea mountains formed by volcanic activity of the Cobb hotspot located in the Pacific Ocean. The seamount chain extends to the southeast on the Pacific Plate, beginning at the Aleutian Trench and terminating at Axial Seamount, located on the Juan de Fuca Ridge. The seamount chain is spread over a vast length of approximately 1,800 km. The location of the Cobb hotspot that gives rise to these seamounts is 46° N—130° W. The Pacific plate is moving to the northwest over the hotspot, causing the seamounts in the chain to decrease in age to the southeast. Axial is the youngest seamount and is located approximately 480 km west of Cannon Beach, Oregon. The most studied seamounts that make up this chain are Axial, Brown Bear, Cobb, and Patton seamounts. There are many other seamounts in this chain which have not been explored.

<span class="mw-page-title-main">Aragonite sea</span> Chemical conditions of the sea favouring aragonite deposition

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The Chixoy-Polochic Fault, also known as Cuilco-Chixoy-Polochic Fault, is a major fault zone in Guatemala and southeast Mexico. It runs in a light arc from the east coast of Guatemala to Chiapas, following the deep valleys of the Polochic River, Chixoy River and Cuilco River.

<span class="mw-page-title-main">Gerald Haug</span> German geologic climatologist

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<span class="mw-page-title-main">Bruce P. Luyendyk</span> American geophysicist and oceanographer (born 1943)

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John A. Baross is an American marine microbiologist and professor of oceanography and astrobiology at the University of Washington who has made significant discoveries in the field of microbial ecology of hydrothermal vents and the physiology of thermophilic bacteria and archaea.

Cynthia Ebinger is an American geoscientist at Tulane University known for her research on continental rifts and the movement of continental plate boundaries.

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Anne M. Tréhu is a professor at Oregon State University known for her research on geodynamic processes, especially along plate boundaries. She is an elected fellow of the American Geophysical Union.

Rachel Haymon is a marine geologist known for her work linking geological and biological processes occurring at deep-sea hydrothermal vents. In 2005 she was elected a fellow of the Geological Society of America.

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References

  1. 1 2 Pratt, Sara E. (May 8, 2015). "Down to Earth With: Marine Geophysicist Maya Tolstoy". www.earthmagazine.org. Retrieved 2022-02-05.
  2. Delaney, Peggy; Abrantes, Fatima; Alexander, Vera; Alldredge, Alice L.; Almogi-Labin, Ahuva; Alonso, Belén; Anand, Pallavi; Ates, Sibel Bargu; Bauch, Dorothea; Bell, Robin E.; Benitez-Nelson, Claudia (2005). "Autobiographical Sketches of Women in Oceanography". Oceanography. 18 (1): 65–246. ISSN   1042-8275. JSTOR   43925658.
  3. 1 2 "Homesite of Maya Tolstoy | Curriculum Vitae". www.ldeo.columbia.edu. Retrieved 2022-02-05.
  4. "Maya Tolstoy named dean of the UW College of the Environment". UW News. June 2, 2021. Retrieved 2022-02-05.
  5. "A Trio of Women Scholars Who Have Been Appointed to Endowed Positions". Women In Academia Report. 24 June 2021.
  6. Tolstoy, M.; Cowen, J. P.; Baker, E. T.; Fornari, D. J.; Rubin, K. H.; Shank, T. M.; Waldhauser, F.; Bohnenstiehl, D. R.; Forsyth, D. W.; Holmes, R. C.; Love, B.; Perfit, M. R.; Weekly, R. T.; Soule, S. A.; Glazer, B. (22 December 2006). "A Sea-Floor Spreading Event Captured by Seismometers". Science. 314 (5807): 1920–1922. Bibcode:2006Sci...314.1920T. doi:10.1126/science.1133950. PMID   17124289. S2CID   10275659.
  7. Chadwick, William W. (2006). "A Submarine Volcano Is Caught in the Act". Science. 314 (5807): 1887–1888. doi:10.1126/science.1137082. ISSN   0036-8075. JSTOR   20035087. S2CID   35015215.
  8. Tolstoy, Maya; Wilcock, William S.D.; Tan, Yen Joe; Waldhauser, Felix (2018). "A Tale of Two Eruptions: HOW DATA FROM AXIAL SEAMOUNT LED TO A DISCOVERY ON THE EAST PACIFIC RISE". Oceanography. 31 (1): 124–126. doi: 10.5670/oceanog.2018.118 . ISSN   1042-8275. JSTOR   26307796.
  9. Tolstoy, Maya; Vernon, Frank L.; Orcutt, John A.; Wyatt, Frank K. (1 June 2002). "Breathing of the seafloor: Tidal correlations of seismicity at Axial volcano". Geology. 30 (6): 503–506. Bibcode:2002Geo....30..503T. doi:10.1130/0091-7613(2002)030<0503:BOTSTC>2.0.CO;2. ISSN   0091-7613.
  10. Tolstoy, M.; Waldhauser, F.; Bohnenstiehl, D. R.; Weekly, R. T.; Kim, W.-Y. (January 2008). "Seismic identification of along-axis hydrothermal flow on the East Pacific Rise". Nature. 451 (7175): 181–184. Bibcode:2008Natur.451..181T. doi:10.1038/nature06424. PMID   18185585. S2CID   4320243.
  11. Tolstoy, Maya (2015). "Mid-ocean ridge eruptions as a climate valve". Geophysical Research Letters. 42 (5): 1346–1351. Bibcode:2015GeoRL..42.1346T. doi: 10.1002/2014GL063015 . ISSN   1944-8007. S2CID   55300326.
  12. McSpadden, Kevin (February 6, 2015). "Undersea Volcanoes May Impact Climate Change". Time. Retrieved 2022-02-05.
  13. June, Audrey Williams (October 26, 2018). "What Factors Hold Back the Careers of Women and Faculty of Color? Columbia U. Went Looking for Answers". Chronicle of Higher Education. 65 (8).
  14. Xia, Karen (February 1, 2019). "Columbia has $185 million in dedicated funds. Why is hiring diverse faculty still so difficult?". UWIRE Text.
  15. Eagan, Daniel (February 2005). "Aliens of the Deep". Film Journal International. Vol. 108, no. 2.
  16. REED, CHRISTINA (2005). "Into the Abyss". Scientific American. 292 (2): 24–25. Bibcode:2005SciAm.292b..24R. doi:10.1038/scientificamerican0205-24. ISSN   0036-8733. JSTOR   26060865. PMID   15715384.
  17. "Women Explorers | The Leonard Lopate Show". WNYC. April 28, 2009. Retrieved 2022-02-05.
  18. "Maya Tolstoy, Ph.D. - Nobel Conference 48 | Nobel Conference". gustavus.edu. Retrieved 2022-02-05.
  19. "Francis Birch Lecture | AGU". www.agu.org. Retrieved 2022-02-05.