T1. Bridging Two Continents: Active Intracontinental Tectonics in Asia and North America and the Associated Geohazards

Jing Liu, An Yin, Mian Liu

Intracontinental tectonics, exemplified by the diffuse crustal deformation in central Asia and the western U.S., and mid-continental earthquakes in North China and the eastern-central U.S., remains enigmatic. This session seeks researchers from all disciplines to exchange data and ideas to better understand active intracontinental tectonics and associated geohazards.

Tectonics/Tectonophysics

T2. Bridging Two Continents: Advances in Crustal Subduction and Ultrahigh-Pressure Metamorphism

Jane A. Gilotti, Yong-Fei Zheng
GSA Structural Geology and Tectonics Division; Mineralogical Society of America; GSA Mineralogy, Geochemistry, Petrology, and Volcanology Division; Geochemical Society

Presentations that explore the mineralogical, petrological, geochemical, geochronologic, and tectonic aspects of crustal subduction and ultrahigh-pressure metamorphism are welcome. Papers presenting theoretical, analytical, or conceptual advances toward the understanding of deep subduction-zone processes are encouraged.

Petrology, Metamorphic | Tectonics/Tectonophysics | Geochemistry |

T20. Embedded Research Projects in Upper Level Undergraduate Courses: A Plausible Panacea for the Dwindling Science and Engineering (S&E) Researchers Community (Posters)

K Solomon Isiorho, David O. Omole
Council on Undergraduate Research Geosciences Division; GSA Environmental and Engineering Geology Division

Early involvement of young science and engineering (S&E) students in research through their courses becomes important as the S&E population ages. Environmental related researches/projects abstracts by professors/students are encouraged for submission to this session.

Engineering Geology | Environmental Geoscience | Hydrogeology

T21. Environmental and Engineering Geology Student Research Competition

William J. Burns, Scott Burns
GSA Environmental and Engineering Geology Division

We encourage students to submit an abstract for the poster or oral presentation on topics related to any research related to environmental and engineering geology. Monetary awards will be given to the top presenters.

Engineering Geology | Environmental Geoscience | Quaternary Geology |

T24. Sedimentology of Large Rock and Volcanic Debris Avalanche Deposits

Anja Dufresne, Stuart Dunning, Sibylle Knapp
GSA Quaternary Geology and Geomorphology Division; GSA Environmental and Engineering Geology Division

Rock/debris avalanche deposits harbor important evidence of their emplacement processes. We welcome contributions of case studies of large landslides that make maximum use of natural exposures, and we encourage a focus on lithological variations.

Engineering Geology | Sediments, Clastic | Volcanology

T25. An Early Involvement of Undergraduates and K12 Students in Geological Research Brings a Strong Sense of Ownership and Achievement for Young Researchers (Posters)

Nazrul I. Khandaker
GSA Geoscience Education Division; GSA Environmental and Engineering Geology Division; GSA Geology and Society Division; GSA Sedimentary Geology Division; Council on Undergraduate Research Geosciences Division; National Earth Science Teachers Association; GSA Quaternary Geology and Geomorphology Division

Undergraduates and K12 students interested in demonstrating their research skills pertaining to broad geosciences, engineering geology, environmental, and sedimentology/geomorphology topics and receive professional feedback from the participating attendees are encouraged to consider this topical session.

Environmental Geoscience | Geoscience Education | Geoscience Information/Communication

T26. From Provenance to Sequestration: A Heavy Metal Journey

Michael Martnez-Coln, Henry Alegria
GSA Environmental and Engineering Geology Division; Geochemical Society

This session will highlight ongoing geological, biological, and biogeochemical processes involved in the behavior and transport of metals in aquatic and terrestrial systems.

Environmental Geoscience | Geochemistry | Soils |

T29. Restoring the Nations Largest Estuary: Lessons Learned from Efforts to Address Changes in Water Quality and Ecosystem Structure and Function within the Context of Landscape Change and Climate Variability in the Chesapeake Bay and Its Watershed

Christopher P. Carlson, Scott W. Phillips, Joel D. Blomquist, Lewis C. Linker, William C. Dennison
GSA Geology and Society Division; GSA Hydrogeology Division; GSA Environmental and Engineering Geology Division; GSA Quaternary Geology and Geomorphology Division

The session will focus on ecosystem response to restoration policies and practices to improve water quality and habitat in the tidal bay and throughout the watershed, emphasizing the influence of land use, geology, ecology, management actions, and climate variability.

Environmental Geoscience | Public Policy | Hydrogeology |

T32. Urban Geochemistry

W. Berry Lyons, David T. Long
International Association of GeoChemistry; Geochemical Society; GSA Environmental and Engineering Geology Division; GSA Geology and Society Division

This session encourages presentations that qualify and quantify the geochemical and biogeochemical impacts (temporal and spatial) of urbanization and urban activities on soil, water, and air resources, as well as on human and ecosystem health.

Environmental Geoscience | Geochemistry | Geology and Health |

T35. Honoring the Diverse Career of Dr. W. Berry Lyons: Geochemistry from Polar Deserts to Tropical Watersheds

Sarah K. Fortner, Carolyn B. Dowling, Karen Johannesson, Klaus Neumann, Carmen A. Nezat
GSA Mineralogy, Geochemistry, Petrology, and Volcanology Division; GSA Hydrogeology Division; GSA Limnogeology Division; International Association of GeoChemistry; Geochemical Society

This session honors W. Berry Lyons and his many contributions to geochemistry. Dr. Lyons has investigated polar to tropical settings. His research, collaborative abilities, and leadership inspire many and have built new directions in geochemistry.

Geochemistry | Hydrogeology | Limnogeology |

T37. Origins and Early Evolution of Life at the Mineral/Water Interface

Charlene F. Estrada, Punam Dalai, Nita Sahai
GSA Mineralogy, Geochemistry, Petrology, and Volcanology Division; Geochemical Society; GSA Planetary Geology Division

This session encourages studies that explore prebiotic organic molecule interactions with minerals that may have influenced the origins of life on early Earth and, potentially, on other terrestrial bodies.

Geochemistry | Mineralogy/Crystallography | Precambrian Geology

T38. Sigma Gamma EpsilonUndergraduate Research (Posters)

Erika R. Elswick
Sigma Gamma Epsilon

The goal of this session is to highlight recent and on-going undergraduate research in a student-friendly forum. The session is open to students and faculty co-authors working in any area of the geosciences.

Geochemistry | Paleontology, Biogeography/Biostratigraphy | Environmental Geoscience

T39. Sources, Transport, Fate, and Toxicology of Trace Elements and Organics in the Environment

LeeAnn Munk, David T. Long, W. Berry Lyons
International Association of GeoChemistry; Geochemical Society; GSA Mineralogy, Geochemistry, Petrology, and Volcanology Division

Basic and applied research on trace elements and organics in the environment are encouraged. Topics include those that relate to understanding and modeling sources, transport and fate; human and ecosystem health; environmental assessment and remediation.

Geochemistry | Environmental Geoscience | Geology and Health |

T42. Geoscience Data Repositories and Data Management Services

M. Lee Allison, Bruce Herbert
GSA Geoinformatics Division; GSA Quaternary Geology and Geomorphology Division

This session is intended to examine options and examples of design and implementation of geoscience data repositories along with data management services that can meet the emerging federal requirements and community needs.

Geoinformatics | Geoscience Information/Communication | Public Policy |

T45. Transforming the Life of the Geoscientist from Planning to Post-Submission: Cyberinfrastructure as an Agent of Change

Simon Goring, Noah McLean
GSA Sedimentary Geology Division; GSA Geoinformatics Division; GSA Structural Geology and Tectonics Division; GSA Geoscience Education Division; EarthCube

This end-user focused session will showcase the ways that science supported by EarthCube and other large-scale cyberinfrastructure projects will help shape and advance the research and outreach activities of geoscientists now and in the future.

Geoinformatics | Geoscience Information/Communication | Public Policy

T46. Using Digitized Data in Geological and Paleontological Research

Talia S. Karim, Gil Nelson
Paleontological Society; Society for the Preservation of Natural History Collections; GSA Geoinformatics Division; EarthCube C4P; iSamples

Digitization programs in paleontology and geology are producing large amounts of easily accessible data. This session will present developments in the research uses of digitized geoscience data and recent advances in data-publishing and mobilization.

Geoinformatics | Paleoclimatology/Paleoceanography | Paleontology, Diversity, Extinction, Origination

T47. Geology and Health: A Decade of Progress

Thomas H. Darrah, Suzette A. Morman, Andrew Hunt, Kevin E. Nick, Saugata Datta
GSA Geology and Health Division; GSA Geology and Society Division

Geology and health is a young, but impactful discipline with significant contributions to critical society issues. This session presents state-of-the-art research on the application of geological knowledge and techniques to assess potential health risks or benefits of geological materials.

Geology and Health | Environmental Geoscience | Hydrogeology |

T53. Geoheritage Matters (Posters)

Benjamin van Wyk de Vries, Tom Casadevall
GSA Geology and Society Division; GSA Geoscience Education Division; GSA Quaternary Geology and Geomorphology Division

Geoheritage is the protection of geological features, and it has strong outreach content. The session will discuss the evolution of geoheritage as geology and society advance, and its variation in time and socio- geographic location.

Geomorphology | Geoscience Education | History and Philosophy of Geology

T54. Geomorphology and Hydrology of Wildland Fires

Daniel Cadol, Francis K. Rengers
GSA Quaternary Geology and Geomorphology Division; GSA Environmental and Engineering Geology Division

This session seeks to bring together researchers studying the processes by which wildland fires affect the transport of water, sediment, and pyrogenic debris down hillslopes and through the fluvial network.

Geomorphology | Environmental Geoscience |

T58. Undergraduate Research Talks: The Next Step in Student Research Projects

Jacqueline A. Smith, Bradley G. Johnson, Edward C. Hansen
GSA Geoscience Education Division; GSA Quaternary Geology and Geomorphology Division; GSA Geoinformatics Division; Council on Undergraduate Research Geosciences Division

This session provides a venue for undergraduate students and recent graduates to present talks on completed research projects. Students may submit abstracts for research projects in any subdiscipline of geology, earth science, or environmental science.

Geomorphology | Quaternary Geology | Environmental Geoscience

T59. Advances in Crustal Geophysics and Tectonics: In Honor of G.R. Keller

Kevin L. Mickus, Catherine M. Snelson, Dennis L. Harry
GSA Geophysics Division; GSA Structural Geology and Tectonics Division; GSA Mineralogy, Geochemistry, Petrology, and Volcanology Division; GSA Geoinformatics Division

This session is to honor G.R. Keller, a leader in applying geophysics to solve tectonic and geoinformatic problems. He has used seismic and potential field data to investigate numerous tectonic environments (e.g., continental rifts, orogenic belts, and plateau uplifts) worldwide.

Geophysics/Geodynamics | Tectonics/Tectonophysics | Geoinformatics |

T62. Integrating Geophysical Characterization of the Near Surface for Carbon Cycle Studies in Peatland Soils

Gregory J. Mount, William Wright, Matthew McClellan
GSA Soils and Soil Processes Interdisciplinary Interest Group; GSA Geophysics Division; GSA Quaternary Geology and Geomorphology Division; Geochemical Society

This session focuses on the use of near surface hydrogeophysical methods to understand carbon cycle dynamics in the shallow subsurface, including studies on release events and potential storage.

Geophysics/Geodynamics | Soils | Geochemistry |

T69. Closing the Diversity Gap in Geoscience: Successful Models, Best Practices, Benefits, Outcomes, and Next Steps

Ashanti Johnson, David Siegfried, Lois Ricciardi
GSA Geology and Society Division; American Geophysical Union

This session presents successful models, practices, benefits, outcomes, and next steps for closing the diversity gap in geoscience. Program stakeholders highlight how fusing academic, research and diversity activities foster an inclusive and equitable geoscience community.

Geoscience Education | Geoscience Information/Communication | Environmental Geoscience

T70. Digital Technology in Real and Virtual Geoscience Experiences

Declan De Paor, Steven J. Whitmeyer, Callan Bentley
GSA Geoinformatics Division; GSA Environmental and Engineering Geology Division; GSA Geology and Health Division; GSA Geology and Society Division; GSA Geophysics Division; GSA Geoscience Education Division; GSA History and Philosophy of Geology Division; GSA Hydrogeology Division; GSA Karst Division; GSA Limnogeology Division; GSA Mineralogy, Geochemistry, Petrology, and Volcanology Division; GSA Planetary Geology Division; GSA Quaternary Geology and Geomorphology Division; GSA Sedimentary Geology Division; GSA Archaeological Geology Division; GSA Structural Geology and Tectonics Division; National Association of Geoscience Teachers; Geo2YC Division of the National Association of Geoscience Teachers; International Association for Geoscience Diversity

Digital technology is transforming geoscience practices. We seek presentations addressing applications of digital technology to all aspects of geoscience teaching, research, and outreach, with an emphasis on the importance and usefulness of innovations.

Geoscience Education | Geoscience Information/Communication |

T73. Everyone Says They're Teaching Earth Systems, But What Does That Really Mean?

Eric J. Pyle, Don Duggan-Haas
GSA Geoscience Education Division; National Association of Geoscience Teachers

What does it mean to teach Earth systems science? This session includes a series of cases and strategies that have been used to build understandings of Earth as a system and of systems more broadly.

Geoscience Education | Geoscience Information/Communication | History and Philosophy of Geology

T74. Extended Geology Trips with Special Emphasis on Study Abroad

Tania-Maria Anders, Mark Boryta

This session will offer tips, tricks, and topics for developing and running extended geology field trips both nationally and internationally. We especially encourage submissions that focus on how to implement study abroad programs that include considerable field components.

Geoscience Education

T75. Field-Based Educational Research: Insights from Field Camps, Field Trips, and Field-Based Courses

Miriam Barquero-Molina, Angela Van Boening, Heather L. Petcovic, Lauren N. Holder
GSA Geoscience Education Division; National Association of Geoscience Teachers

This session will present rigorous research in field-based geoscience education, including field camps, courses, trips, field-based research, and professional contexts. Research involving cognitive science such as spatial thinking, navigation, visualization skills, and utilizing teaching as research in the field will also be covered.

Geoscience Education | Geoscience Information/Communication |

T77. Geology and Hydrology in the National Parks: Research, Mapping, and Resource Management

Bruce A. Heise, F. Edwin Harvey, Jason P. Kenworthy
GSA Hydrogeology Division; GSA Geology and Society Division

This session addresses the roles of geology and hydrology in national parks. Presentations are encouraged on geologic and hydrologic research, paleontology, and geologic and water resource management in units of the U.S. National Park system.

Geoscience Education | Hydrogeology | Geoscience Information/Communication |

T91. Using Place-Based and/or Data Driven Approaches in Geoscience Undergraduate Teaching and Research

Diana Dalbotten, Emily Goesling
Council on Undergraduate Research Geosciences Division

This session explores exemplary teaching approaches that are either place-based or data-driven, and especially the possibility of creating place-based, data-driven learning experiences for undergraduates.

Geoscience Education

T92. Clear As Mud? Advancing Communication in the Geosciences

Justin M. Samuel, Christa K. Stratton, Susanna W. Blair
GSA Geology and Society Division; GSA Committee on Geology and Public Policy; GSA Geoscience Education Division

Communication research offers insight that can help us build a better societal conversation about science and advance more scientifically based policy decisions. This session examines dynamics for improving engagement across the geoscience/society interface.

Geoscience Information/Communication | Public Policy | Geoscience Education |

T95. Evolution of the Data Life Cycle

Hannah Winkler
Geoscience Information Society

With the increased expectations in sharing of geoscience research data and complexities in the evolution of the data life cycle, we evaluate best practices in scientific data collection, preservation, recovery, and subsequent reuse.

Geoscience Information/Communication | Geology and Health | Geoscience Education |

T102. Characterization and Remediation of Fractured Rock

Kent Novakowski, Bernie Kueper
GSA Hydrogeology Division

Papers on fundamental transport processes related to remediation in fractured rock, the application of numerical modeling to the design of remedial programs, novel characterization methods, or unique case studies (either laboratory of field), are solicited.

Hydrogeology |

T105. Fate and Remediation of Organic and Metal Contaminants in Wetlands and Sediments

Michelle M. Lorah, Isabelle Cozzarelli, Upal Ghosh
GSA Hydrogeology Division; GSA Environmental Engineering and Geology Division; Geochemical Society

This session focuses on processes controlling the fate of organic and metal contaminants in shallow groundwater and sediment, including in wetlands, estuaries, and lakes, and application to defining natural attenuation and developing, implementing, and monitoring remediation.

Hydrogeology | Environmental Geoscience | Geochemistry |

T107. In Situ Technologies for Energy Resource Extraction: The Role of Water

Tanya J. Gallegos, Carleton R. Bern
GSA Hydrogeology Division; GSA Energy Geology Division

This session explores water-related research in emerging or established in-situ technologies (e.g., in-situ recovery [ISR], borehole hydraulic mining, in-situ retorting, hydraulic fracturing) for recovering oil, gas, uranium, or coal, including hydrogeology, (bio)geochemistry, and water management.

Hydrogeology | Engineering Geology | Environmental Geoscience |

T111. Sustainability and Resilience in Major Urban Areas: The Need for Earth and Environmental Science Information in Formulating Plans, Policies, and Programs

Robert J. Shedlock, Claire Welty
GSA Hydrogeology Division; GSA Geology and Society Division; GSA Environmental and Engineering Geology Division

We seek presentations from across disciplines to explore how earth and environmental science information in urban areas is informing planners and policy makers responsible for environmental management, sustainability, and resilience programs in their metropolitan areas.

Hydrogeology | Environmental Geoscience | Public Policy |

T112. Understanding Saline Fluid Flow Systems: From Saltwater Intrusion to Geologic-Scale Brine Migration

Fabien Magri, Andrew H. Manning, Alicia M. Wilson
GSA Hydrogeology Division; International Association of Hydrogeologists; Society of Economic Geologists

This session seeks contributions that improve our understanding of saline fluid flow systems at local (coastal) to geologic scales by applying numerical, hydrochemical, and field investigations.

Hydrogeology | Environmental Geoscience | Marine/Coastal Science |

T113. Urban Groundwater Effects beyond Impervious Surface Cover

Claire Welty, Aditi S. Bhaskar, John M. Sharp
GSA Hydrogeology Division; GSA Environmental and Engineering Geology Division; GSA Geology and Society Division

The view of urban processes that affect urban groundwater quantity and quality is expanding beyond impervious surfaces to include green infrastructure, leaky infrastructure, and altered evapotranspiration. This session focuses on impacts of these processes to groundwater and stream

baseflow.

Hydrogeology |

T117. Enhancing the Toolkit for Karst Investigations

Douglas Gouzie, Toby Dogwiler, Joseph Myre
GSA Karst Division; GSA Hydrogeology Division

This session encourages papers presenting applications of novel, emerging, or increasingly cost-effective tools to be used in Karst investigations. Topics include recent advances in instrumentation and remote sensing, isotopic and geophysical methods, computational models of karst processes and systems, or other emerging methods.

Karst | Hydrogeology | Geophysics/Geodynamics |

T121. New Perspectives in Karst Geomicrobiology and Redox Geochemistry: Advances from 20 Years of Interdisciplinary Research and Exploring Our Future Frontiers

Annette Summers Engel, John R. Spear, Sarah K. Carmichael, Hazel A. Barton, Philip C. Bennett
GSA Karst Division; GSA Geobiology & Geomicrobiology Division; Karst Waters Institute; National Cave and Karst Research Institute; Geochemical Society

In the 20 years since the Karst Waters Institutesponsored symposium, Breakthroughs in Karst Geomicrobiology and Redox Geochemistry, we welcome contributions that highlight major achievements and latest advances in karst research. Interdisciplinary participation is encouraged.

Karst | Geomicrobiology | Geochemistry |

T123. Carbon Cycling in Lakes

Johan C. Varekamp, Amy Myrbo
GSA Limnogeology Division; GSA Quaternary Geology and Geomorphology Division; Geochemical Society

Lakes cycle carbon through photosynthesis or as depocenters for terrestrial particulate carbon. We seek abstracts that deal with carbon inputs, outputs, or cycling processes in lakes. We have a special interest in lakes with a volcanic or geothermal carbon input.

Limnogeology | Geochemistry | Sediments, Clastic |

T174. Microscopic Impact Records

Aaron J. Cavosie
GSA Mineralogy, Geochemistry, Petrology, and Volcanology Division; Geochemical Society

Advances in instrumentation allow microstructural and geochemical investigations of impact records at microscopic and smaller scales, providing new insights on impact histories. This session welcomes contributions describing approaches to unraveling small-scale records of impact processes.

Planetary Geology | Mineralogy/Crystallography | Geochemistry

T175. Oceans, Fire, and Ice of the Outer Solar System

Emily S. Martin, D. Alex Patthoff
GSA Planetary Geology Division; GSA Structural Geology and Tectonics Division; GSA Quaternary Geology and Geomorphology Division; GSA Geophysics Division; GSA Mineralogy, Geochemistry, Petrology, and Volcanology Division

We encourage abstracts relating to surface, structural, and tectonic processes; interior, and thermal evolution of solid bodies of the outer solar system; and planetary analogs. This includes experimental, observational, and theoretical approaches.

Planetary Geology

T176. Past and Present Biosignature Recognition on Earth and Mars

Sally L. Potter-McIntyre, Charity Phillips-Lander
GSA Mineralogy, Geochemistry, Petrology, and Volcanology Division; GSA Planetary Geology Division

Diagnostic biosignatures can be from extant life (e.g., spectral atmospheric signatures) or preserved in the rock record (e.g., stromatolites). This forum will discuss advances in the search for life, focusing specifically on Earth and Mars.

Planetary Geology | Sediments, Clastic | Sediments, Carbonates |

T181. Non-Traditional Funding for Research: Opportunities and Challenges

Erik R. Hankin, Maeve A. Boland, Kasey S. White
GSA Geology and Society Division; Geology and Public Policy Committee

Non-traditional mechanisms for research funding, such as Internet crowdfunding and federal prizes, are increasing, along with the share of research funded outside the federal government. This session will examine advantages and limitations of this shift.

Public Policy

T182. Similar Information, Different Results: Fracking from State to State (Posters)

R. Laurence Davis, Christopher P. Carlson
GSA Geology and Society Division; GSA Geoinformatics Division; GSA Energy Geology Division

Using similar data, different states have formulated different approaches to oil and gas recovery using hydrofracking. At this session, geologists and policy makers will outline their state's policies and discuss how they were developed.

Public Policy | Environmental Geoscience | Energy Geology |

T202. Paleosol Case Studies: Resurrecting Ancient Critical Zones through Space and Time

Emily J. Beverly, R. Hunter Harlow, William E. Lukens
GSA Soils and Soil Processes Interdisciplinary Interest Group; SEPM (Society for Sedimentary Geology); GSA Quaternary Geology and Geomorphology Division

Paleosols record dynamic processes operating on past landscapes. We welcome case studies focusing on terrestrial paleoclimatology, particularly those utilizing paleosols to understand spatial and temporal changes in Critical Zones of the past.

Soils | Sediments, Clastic | Paleoclimatology/Paleoceanography |

T212. Deconstructing Rodinia: Neoproterozoic-Cambrian Geologic Evolution of Laurentias Margins

Chris Holm-Denoma, Arthur J. Merschat
GSA Structural Geology and Tectonics Division; GSA Geophysics Division; GSA Sedimentary Geology Division; GSA Mineralogy, Geochemistry, Petrology, and Volcanology Division; Precambrian Geology; SEPM (Society for Sedimentary Geology); Geochemical Society; Society of Economic Geologists; Paleoceanography/Paleoclimatology Discipline; Paleontological Society

This session aims to bring together scientists with broad interests and ideas regarding the breakup of Rodinia and its impact on the geosphere and biosphere, especially in regard to the Neoproterozoic-Cambrian geologic evolution of Laurentias margins.

Tectonics/Tectonophysics | Precambrian Geology | Paleoclimatology/Paleoceanography

T213. Integrating Perspectives on the Formation, Evolution, and Destruction of Continental Crust: From 0 to 4600 Ma

Paul A. Mueller, Robert Stern, David Snyder, M.B. Magnani, M.E. Bickford
Geochemical Society; GSA Geophysics Division; GSA Mineralogy, Geochemistry, Petrology, and Volcanology Division; Mineralogical Society of America; Geological Association of Canada; Mineralogical Association of Canada; GSA Planetary Geology Division

Constraining the extent to which the geochemical, geophysical, and tectonic characteristics of modern arc systems (oceanic and continental) and LIPS (large igneous provinces) can be applied to the Precambrian record (Archean and Proterozoic) of crustal evolution.

Tectonics/Tectonophysics | Petrology, Igneous | Precambrian Geology |

T214. Mountains across the Oceans: Caledonian, Variscan, and Appalachian Orogenies through Time

Jeffrey Marsh, Loic Labrousse, Nicolas Pinet, Stacia M. Gordon
GSA Structural Geology and Tectonics Division;EGU Division on Tectonics and Structural Geology; GSA Mineralogy, Geochemistry, Petrology, and Volcanology Division

This session seeks abstracts concerning the Caledonian, Variscan, and Appalachian orogens and aims to have a wide variety of geologic subdisciplines represented, with work from geologists, geophysicists, and modelers.

Tectonics/Tectonophysics | Structural Geology | Petrology, Metamorphic

T215. Novel Methods, Applications, and Data Interpretations in Thermochronology

Alexis K. Ault, William R. Guenthner
Geochemical Society; GSA Structural Geology and Tectonics Division; GSA Geoinformatics Division; GSA Mineralogy, Geochemistry, Petrology, and Volcanology Division

This session highlights new thermochronometers, novel applications of existing thermochronometers, and innovative approaches to interpreting complex datasets. Contributions addressing a range of geologic questions and from the high to low temperature thermochronology communities are encouraged.

Tectonics/Tectonophysics | Geochemistry | Geomorphology |

T216. Recent Developments in Understanding Rift Systems: What We've Learned and What We Still Don't Know

Nathalie Nicole Brandes, Paul T. Brandes, Audra E. Basal

This multidisciplinary session focuses on recent studies concerning modern and ancient rift systems, including structure and tectonics, volcanic activity, ore deposit formation, and sedimentation.

Tectonics/Tectonophysics | Volcanology | Sediments, Clastic

T217. Rift-Drift, Seafloor Spreading, and Subduction Zone Tectonics of Collisional Orogens: Comparative Analysis of the Circum-Mediterranean and Appalachian-Caledonian Orogenic Belts

Andrea Festa, Yildirim Dilek
GSA Structural Geology and Tectonics Division; GSA Geophysics Division; GSA Mineralogy, Geochemistry, Petrology, and Volcanology Division; GSA Sedimentary Geology Division; GSA Quaternary Geology and Geomorphology Division; Marine/Coastal Science Discipline

Contributions presenting new geological, geochemical, geochronological, and geophysical data and tectonic models from the Circum-Mediterranean and Appalachian-Caledenonian orogenic belts are welcome in order to discuss processes involved in different stages of their collision-driven geodynamic evolution.

Tectonics/Tectonophysics | Structural Geology | Geophysics/Geodynamics

T218. Comparative Approaches to Studying Impact Ejecta Deposits and Volcanic Flows

Jacob E. Bleacher, Kelsey Young
GSA Planetary Geology Division; NASA Solar System Exploration Research Virtual Institute; GSA Mineralogy, Geochemistry, Petrology, and Volcanology Division

Similarities between impact ejecta deposits and volcanic flows are leading to comparable research approaches. Techniques for the study of both deposit types will be compared in this session.

Volcanology | Planetary Geology

T219. Intraplate and Divergent Boundary Volcanism: A Tribute to the Distinguished Career of David Clague

Wendy A. Bohrson, Jacqueline Dixon
GSA Mineralogy, Geochemistry, Petrology, and Volcanology Division; Geochemical Society; Mineralogical Society of America; Marine/Coastal Science Discipline

David Clague, 2015 Distinguished Career MGPV Award recipient, is recognized for his multidisciplinary, data-intensive approach to studying volcanoes. This session will feature research by those inspired by Daves many contributions to volcanology, petrology, and geochemistry.

Volcanology | Petrology, Igneous | Geochemistry