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2018 GSA Fellows
Sean P.S. Gulick (The University of Texas at Austin): For leader-
ship in the marine geophysical community, for sustained research
in the topics of tectonics and climate interactions, geohazards
of convergent margins, and studies of impact cratering.
—Peter Haeussler
Julia Eve Hammer (University of Hawaii): For rigorous yet
imaginative contributions to understanding how silicate magmas
crystallize, evolve, and erupt, as well as for outstanding and
innovative training of students in the lab and in the classroom.
—Michelle Coombs
Masaki Hayashi (University of Calgary): Masaki Hayashi’s
innovative contributions to the fields of wetland hydrology,
vadose-zone processes in cold regions, and alpine hydrology and
hydrogeology have greatly advanced these disciplines. His focus
on groundwater and its exchanges with other hydrological com-
ponents has been highly valued by his many colleagues, students,
and numerous water-resource managers. —Donald Rosenberry
Sidney Ann Rasbury Hemming (Columbia University and
LDEO): For recognition of fundamental contributions to geologic
research, training of geologists, and for development of innova-
tive approaches in detrital geochronology and fundamental
insights into the origins and significance of ice-rafted debris and
sediments for understanding past climate and physical oceanog-
raphy. —Peter Reiners
Charles Murray Henderson (University of Calgary): Dr.
Henderson is a leading expert on conodont biostratigraphy and
paleobiogeography of the Late Paleozoic and Early Mesozoic. He
has been instrumental in developing global biozonation schemes
and establishing international stage boundaries for both the
Permian and Triassic. He has been a leader of the ICS’s
Subcommission on Permian Stratigraphy. —Thomas Algeo
Gregory Dean Hoke (Syracuse University): Dr. Hoke has made
outstanding contributions to the critical analysis and application
of cutting-edge clumped isotope and cosmogenic dating tech-
niques to the temporal and spatial evolution and geodynamics of
orogenic belts and plateaus of the Andes and SE Asia and leader-
ship of GSA’s International Interdisciplinary Interest Group.
—Jeffrey Karson
Steven Matthew Holland (University of Georgia): Steven
Holland has unified sequence stratigraphy and paleobiology, fun-
damentally changing our understanding of the fossil record and
geologic time. A contributor in all senses, he has done this
through both excellent scientific research and outstanding train-
ing of students, while also serving the field’s institutions and his vator in multidisciplinary graduate education in the geosciences.
university in exemplary fashion. —L. Bruce Railsback
Kurt Hollocher (Union College): From a small undergraduate
college, Kurt published outstanding papers on geochemistry of
metamorphosed igneous rocks, thereby contributing to under-
standing of the early Paleozoic paleogeography of Iapetus, north-
ern Appalachians, and Mid Norway. Highly productive under-
graduate teaching. Organized NEGSA Meetings. Local water
and air pollution problems. —Peter Robinson
www.geosociety.org/gsatoday
Ganqing Jiang (University of Nevada–Las Vegas): Ganqing
Jiang has made major contributions to our understanding of the
Neoproterozoic Earth, including its stratigraphy, carbon isotopic
record, changing redox conditions, and geochronology.
—Nicholas Christie-Blick
Thomas M. Johnson (University of Illinois): Tom Johnson has
made fundamental contributions to the analysis of chromium,
selenium, mercury, and uranium isotopes in groundwater, in the
context of environmental hydrogeology. In addition, he serves as
the head of the geology department at a Research I university,
where he is also an admired and innovative teacher.
—Stephen Marshak
Philip L. Johnson (Cotton, Shires and Associates, Inc.): Elected
to Fellowship as the Engineering and Environmental Geology
Division’s 2017 E.B. Burwell Jr. awardee.
Anthony I.S. Kemp (University of Western Australia): For his
contributions to our understanding of granite petrogenesis and
the growth and evolution of continental crust. —Jeffrey Vervoort
Scott D. King (Virginia Tech): For insightful leadership in devel-
oping methods to model convection in the interior of the earth
and other terrestrial planets and applying these methods to yield
new insights into geodynamics. —Seth Stein
“… had a significant impact on the field of geology as a
researcher, teacher, and member of the GSA community …”
John W. Lane Jr. (U.S. Geological Survey): Dr. Lane is nomi-
nated in recognition of his extraordinary work in developing and
applying geophysical methods to critical problems in water
resources worldwide and his exemplary dedication to mentoring
students and new and practicing geoscience professionals in gov-
ernment and academia. —Denis R. LeBlanc
Thomas John Lapen (University of Houston): Dr. Thomas J.
Lapen has an exemplary record of scholarly publications in first-
rate geologic journals pertaining to a wide spectrum of geologic
problems ranging from metamorphic and tectonic studies to
those concerned with isotopic geochemistry of modern hot
springs. —Henry Chafetz
Laura K. Lautz (Syracuse University): Laura Lautz is a leading
hydrogeologist interested in interactions between surface and
groundwater, focusing on how physical hydrological processes
influence water quality and water movement. She also is an inno-
—Donald Siegel
David Stuart Leigh (University of Georgia): David Leigh is an
eminent geoscientist whose specialty area is fluvial geomorphol-
ogy. He is a long-time member of GSA and active in at least two
Divisions of the Society. His scientific contributions together
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