Margaret Delaney

Margaret (Peggy) Delaney is marine geochemist known for her research on trace elements to examine changes in ocean chemistry over time.

Education and career Delaney earned her B.S. in chemistry from Yale University in 1973 and a Ph.D. from the Massachusetts Institute of Technology/Woods Hole Oceanographic Institution Joint Program (1983). Following her Ph.D., Delaney joined the University of California Santa Cruz in 1983, and later became chair of the Ocean Sciences Department. At the time of her retirement in 2020, Delaney was Vice Chancellor for Planning and Budget at the University of California Santa Cruz.

In her service to the community, Delaney was the editor of the journal Paleoceanography and Paleoclimatology from 1996 to 1999. In 2005, Delaney started a three-year term as editor of the journal Earth and Planetary Sciences. She was also involved in the leadership and management of the Ocean Drilling Program (ODP) and the Integrated Ocean Drilling Program (IODP).

In 2004, Delaney was elected a fellow of the American Geophysical Union and the citation noted her: These elemental ratios in corals can be used to reconstruct ocean chemistry and Delaney examined trace element levels in corals found at the Galapagos Islands. In marine sediments, Delaney examined the accumulation of phosphorus in the equatorial Pacific, tracked phosphorus from riverine sources and particles to the seafloor. Delaney applied these geochemical tools to studies of the Pliocene, the Paleocene-Eocene Thermal Maximum, and changes in the ocean currents around Antarctica.

Selected publications

Awards and honors Fellow, American Geophysical Union (2004) Outstanding Educator Award, Association for Women Geoscientists (1993)