Marjorie Korringa

Marjorie Kitchel Korringa (née Whallon; 8 August 1943 - 8 September 1974) was an igneous petrologist, volcanologist, and structural geologist. She is chiefly known for her research on active fault systems as a critical part of decision-making for the location of oil pipelines and nuclear reactors.

Early life and education Korringa was born on August 8, 1943, in Richmond, Indiana to Robert Edward and Dorothy (Curme) Whallon. She graduated in 1960 from high school in Averill Park, New York. Graduating cum laude, she obtained a Bachelor of Arts in geology from Radcliffe College in Cambridge, Massachusetts in 1964.

Career and research She began her career at the University of Nevada as a geological consultant to Professor David B. Slemmons, who conducted research in earthquake geology and engineering. Slemmons and Korringa discovered two large ash-flow sheets in the Eureka Valley Tuff near Bridgeport, California, along with a smaller overlying unit of ash-flow tuff. This finding confirmed the suggested correlation of the volcanic rock quartz latite in this area.

At the University of Nevada, she also worked with Donald C. Noble regarding volcanic petrology in North America and Peru. This is where her interest in active faults and landslides started. In Mono County, California, they evaluated strontium and lead isotopic data, finding that the obsidian from Glass Mountain was the result of fractional crystallization. Noble and Korringa continued their research by studying calcium variations in whole-rock and glass samples from Quaternary lavas in Crater Lake, Oregon.

Korringa joined Woodward-Clyde Consultants, a civil, geotechnical and environmental engineering and construction firm, where she researched active faulting. In the Alyeska fault study for the Trans-Alaska Pipeline System, she was the central, leading participant. She co-authored numerous reports for the company, her most noteworthy being the Alyeska fault study's "Basis for Pipeline Design for Active-Fault Crossings for the Trans-Alaska Pipeline." In the two years that Marjorie worked with Woodward-Clyde Consultants, she became chairman of the Geology-Seismology-Geophysics Planning Committee. She was headed for significant managerial responsibility, as she "influenced almost every phase of their geologic practice."

By the time of her death in 1974, she had a principal role in designing the extent of evaluation, along with the photo geological interpretation of imagery, for three projects at Woodward-Clyde: the study of a nuclear-reactor project in California, a nuclear-reactor siting in Italy, and the Managua earthquake and its faults for the Nicaraguan government. She was a member of the environmental organization the Sierra Club and attempted to preserve numerous natural areas. She was especially active in the Sierra Club's efforts to establish a Redwood National Park.

Korringa was married twice, and was single at the time of her death. She had presented a paper on active faults at the International Symposium on Recent Crustal Movements in Zurich a few days prior. She had paid a brief visit to her parents, who lived on Crete, before taking the TWA flight for Rome, where she was to take part in a nuclear-reactor siting study for the Italian government. Her body was never recovered.

Legacy A year after Korringa's death, The Marjorie K. Korringa Scholarship Fund was established at Stanford University. The scholarship's purpose was to promote further geologic learning and interest in her most prominent fields of research, namely volcanic petrology and active fault systems. The funding allowed the next generation of women going into both undergraduate and graduate geology programs to extend and build upon Korringa's initial studies.

Along with Korringa's applied geologic efforts that enhanced Woodward-Clyde's productivity and economic results, her extensive philosophical and theoretical evaluations, in the form of laboratory and field studies, contributed to the growth of academic geology.

Selected publications Publications as selected in Korringa's memorial.