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GSA 2018 ANNUAL MEETING & EXPOSITION
T139. Work on the Zircon, Highlight the Apatite: Wielding Advocates: John M. Cottle; Sarah Penniston-Dorland; Mark J.
the Power of Accessory Minerals and Honoring the Caddick
Contributions of Bruce Watson, 2018 Roebling Medalist
Metamorphic petrology, a cornerstone of solid earth research,
Cosponsors: Mineralogical Society of America; Geochemical provides constraints on geodynamic processes. On the eve of the
Society; GSA Mineralogy, Geochemistry, Petrology, and Mineralogical Society of America centenary, this session will
Volcanology Division; Volcanic and Magmatic Studies Group; highlight past, recent, and future developments in metamorphic
American Geophysical Union petrology.
Disciplines: Petrology, Igneous, Petrology, Metamorphic, PLANETARY GEOLOGY
Geochemistry
T143. The Age of Small World Exploration: Major Results
Advocates: Calvin F. Miller; Mark Harrison; Sumit Chakraborty; from Minor Planets and Other Small Solar System Bodies
Frederick J. Ryerson; Julia E. Hammer
Cosponsors: GSA Planetary Geology Division; GSA Geophysics
Accessory minerals have become major contributors to our and Geodynamics Division
understanding of petrogenesis. We seek contributions on acces-
sory minerals (apatite, rutile, monazite, etc.) from experimental, Disciplines: Planetary Geology, Geophysics/Geodynamics,
theoretical, and field-based studies that carry forward the legacy Structural Geology
of innovation of Bruce Watson, 2018 Roebling Medalist.
Advocates: Kynan H.G. Hughson; David A. Williams
T140. Frontiers in Mineralogy, Petrology, and
Geochronology: A Session in Honor of Dana Medalist Jörg Understanding “small worlds” like asteroids, comets, and the
Hermann comparatively large dwarf planets is key to understanding the
nature of our solar system. We welcome abstracts related to geo-
Cosponsors: Mineralogical Society of America; GSA Mineralogy, logic, geophysical, and compositional analyses of “small worlds.”
Geochemistry, Petrology, and Volcanology Division
T144. Friends of Hoth: Episode III—Bodies of the Outer
Disciplines: Petrology, Igneous, Petrology, Metamorphic, Solar System
Mineralogy/Crystallography
Cosponsor: GSA Planetary Geology Division
Advocates: Bradley Hacker; Marc M. Hirschmann; Hugh St.C.
O’Neill Discipline: Planetary Geology
Recent decades have witnessed considerable advances in min- Advocates: Emily S. Martin; D. Alex Patthoff
eralogy, petrology, and geochronology, underpinned largely by
new micro-analytical methods, computational power, and cross- We encourage abstracts relating to surface, structural, and tec-
fertilization from other fields. This session is devoted to highlight- tonic processes; interior and thermal evolution; and planetary ana-
ing recent achievements and promising novel approaches. logs as they pertain to solid bodies in the outer solar system. This
includes experimental, observational, and theoretical approaches.
T141. Different Personalities of Granites and Rhyolites: Silicic
Magmas from the Lower Crust to the Surface—A Session in T145. Apollo 17 Forty-Five Years on: Reanalysis of the
Honor of Calvin Miller, Recipient of the MGPV Distinguished Geochemistry, Geophysics, and Field Geology in Light of Data
Geological Career Award from the Lunar Reconnaissance Orbiter and Other Recent
Missions
Cosponsor: GSA Mineralogy, Geochemistry, Petrology, and
Volcanology Division Cosponsors: GSA Planetary Geology Division; GSA Geophysics
and Geodynamics Division; GSA Geoinformatics Division
Disciplines: Petrology, Igneous, Geochemistry, Volcanology
Disciplines: Planetary Geology, Geochemistry, Geophysics/
Advocates: Guilherme A.R. Gualda; Lily L. Claiborne; Jonathan Geodynamics
S. Miller; Delores Robinson
Advocates: Noah E. Petro; Jacob E. Bleacher; C.R. Neal; H.H.
Calvin Miller investigates silicic magmatism, from deep crustal Schmitt
granites to erupted rhyolites, using techniques including field rela-
tionships, petrography, geochemistry, geochronology, and acces- Forty-five years since the Apollo 17 mission to the Taurus-
sory mineralogy. Contributions in these topics are welcome to Littrow Valley, the analysis of the samples, interpretation of sur-
celebrate his career and legacy. face measurements, and field observations are being revisited in
the context of newly acquired remote sensing data.
T142. Metamorphic Petrology Past, Present, and Future:
Preparing for the Next 100 Years with the Mineralogical T146. Geomorphology and Landscape Evolution of Mars
Society of America
Cosponsors: GSA Planetary Geology Division; GSA Quaternary
Cosponsors: Mineralogical Society of America; GSA Mineralogy, Geology and Geomorphology Division; GSA Sedimentary
Geochemistry, Petrology, and Volcanology Division Geology Division
Disciplines: Petrology, Metamorphic, Mineralogy/ Disciplines: Planetary Geology, Geomorphology
Crystallography, Tectonics/Tectonophysics
36 4–7 November • Indianapolis, Indiana, USA
