Margaret (Peggy) Delaney is marine geochemist known for her research on trace elements to examine changes in ocean chemistry over time.
[1] Following her Ph.D., Delaney joined the University of California Santa Cruz in 1983, and later became chair of the Ocean Sciences Department.
[2] At the time of her retirement in 2020, Delaney was Vice Chancellor for Planning and Budget at the University of California Santa Cruz.
[6] In 2004, Delaney was elected a fellow of the American Geophysical Union and the citation noted her:[6] innovative work defining links between biogeochemically important elements and past changes in climate; and her altruistic and exemplary service to the oceanographic communityDelaney's research used geochemical measurements to examine changes in ocean chemistry.
Delaney applied these geochemical tools to studies of the Pliocene,[13] the Paleocene-Eocene Thermal Maximum,[14] and changes in the ocean currents around Antarctica.