V014
Extensional Systems through Space and Time: From Magma Genesis to Surface Expression
Session ID#: 250507
Session Description:
Extensional tectonic settings provide valuable insights into the interplay between tectonic, magmatic, and surface processes. These environments host a wide spectrum of volcanic and magmatic activity, shaped by diverse crustal and mantle conditions. Advancing our understanding of these complex systems requires an interdisciplinary contribution from petrology, volcanology, geochemistry, geodynamics, and related fields. This session invites interdisciplinary studies that explore rift and extensional systems through fieldwork, remote sensing, laboratory analyses, and both analog and numerical modeling. We particularly welcome research focused on comparative analyses across extensional provinces, coupling of volcanic and tectonic processes, magmatic evolution, and investigations with implications for volcanic hazard assessment.
Co-Sponsor(s):
Index Terms:
3619 Magma genesis and partial melting [MINERALOGY AND PETROLOGY]
3690 Field relationships [MINERALOGY AND PETROLOGY]
8109 Continental tectonics: extensional [TECTONOPHYSICS]
8178 Tectonics and magmatism [TECTONOPHYSICS]
Primary Convener: Jisoo Kim, USGS Cascades Volcano Observatory, Vancouver, WA, United States
Conveners: Amdemichael Zafu Tadesse, University of Oxford, Department of Earth Sciences, Oxford, United Kingdom, Jacqueline L Giblin, Arizona State University, School of Earth and Space Exploration, Tempe, United States and Albert Kyambikwa, Goma Volcano Observatory, Goma, Congo
Student/Early Career Convener: Jacqueline L Giblin, Arizona State University, School of Earth and Space Exploration, Tempe, United States
Adigrat Basalts, Northern Ethiopia: Geochemical Constraints on the Final Stage of Flood Basalt Activity (1855097)
Tanya Furman, Pennsylvania State University, Department of Geosciences, University Park, United States, Kahsay Nugsse Tesfay, Baylor University, Geoscience, Waco, TX, United States; Aksum University, Shire Campus, Department of Geology, Tigray, Ethiopia, Mia Petrucela, Pennsylvania State University, Department of Chemistry, University Park, PA, United States, Daniel J Peppe, Baylor University, Department of Geosciences, Waco, United States, Amdemichael Zafu Tadesse, University of Oxford, Department of Earth Sciences, Oxford, United Kingdom and Luelseged Emishaw, Midwestern State University, Kimbell School of Geosciences, Wichita Falls, TX, United States
The Conditions of Melt Generation during the Rifting and Breakup of Southwest Africa and South America. (1917575)
Tyrone O Rooney, Michigan State University, Department of Earth and Environmental Sciences, East Lansing, MI, United States, Dougal A Jerram, University of Oslo, Oslo, Norway, Louis L Jacobs, Southern Methodist University, Dallas, TX, United States, Olimpio Gonçalves, U. Agostino Neto, Luanda, Angola and Nair Sousa, Private Consultancy, Luanda, Angola
Crustal Stresses and Magma Pathways in Volcanically Active Rifts (1942554)
Valentina Armeni1, Lorenzo Mantiloni2,3, Bodo Bookhagen4, Eleonora Rivalta2,5, Valerio Acocella6 and Manfred R Strecker4, (1)University of Potsdam, Institute of Geosciensces, Potsdam, Germany, (2)Helmholtz Centre Potsdam GFZ German Research Centre for Geosciences, Potsdam, Germany, (3)University of Exeter, Department of Earth and Environmental Sciences, Exeter, United Kingdom, (4)University of Potsdam, Institute of Geosciences, Potsdam, Germany, (5)University of Bologna, Department of Physics and Astronomy, Bologna, Italy, (6)University of Roma Tre, Department of Science, Rome, Italy
Iceland’s Uncharted Skull: An Analysis of Hauskúpa, an Unmapped Nunatak at Þórðarhyrna (1951508)
Victoria Andreo1, John Kammerer2, Maggie Pearce2, Gabriella Montano3, Tenley J. Banik4 and Tamara Carley1, (1)Lafayette College, Geology and Environmental Geosciences, Easton, United States, (2)Lafayette College, Geology and Environmental Geosciences, Easton, PA, United States, (3)Illinois State University, Geography, Geology, and Environment, Normal, United States, (4)Illinois State University, Geography, Geology, and the Environment, Normal, IL, United States
Histories Emerging from the Ice: Physical and Compositional Characterization of Igneous Moraine Clasts at Jökulsárlón (1964136)
John Kammerer1, Victoria Andreo2, Maggie Pearce1, Beck Knittle3, Gabriella Montano4, Alaina Glover5, Ruby Garey5, Gianna Greger6, Tenley J. Banik7 and Tamara Carley2, (1)Lafayette College, Geology and Environmental Geosciences, Easton, PA, United States, (2)Lafayette College, Geology and Environmental Geosciences, Easton, United States, (3)Lehigh University, Department of Earth and Environmental Sciences, Bethlehem, United States, (4)Illinois State University, Geography, Geology, and Environment, Normal, United States, (5)Illinois State University, Geography, Geology, and the Environment, Normal, United States, (6)University of Wisconsin Milwaukee, Department of Geosciences, Milwaukee, United States, (7)Illinois State University, Geography, Geology, and the Environment, Normal, IL, United States
A Combined High-Resolution Magnetostratigraphy and 40Ar/39Ar Geochronology From Adigrat Section, Northern Margin of the Ethiopian Flood Basalts: Implications for the Timing and Duration of the Traps. (1968489)
Kahsay Nugsse Tesfay, Baylor University, Geoscience, Waco, TX, United States, Matt Heizler, New Mexico Bureau of Geology and Mineral Resources, New Mexico Institute of Mining & Technology, Socorro, NM, United States, Joshua M Feinberg, University of Minnesota Twin Cities, Institute for Rock Magnetism, Department of Earth & Environmental Sciences, Minneapolis, United States and Daniel J Peppe, Baylor University, Department of Geosciences, Waco, United States
Spectral variations in low-frequency earthquakes during the 2021 eruption of Nyiragongo Volcano, East African Rift System (1973083)
Zachary Herbst, Marrietta, GA, UNITED STATES, Albert Kyambikwa, Goma Volcano Observatory, Goma, Congo, Cynthia J Ebinger, Tulane University, School of Science & Engineering, New Orleans, United States, Cirus Kalugana, Tulane University of Louisiana, EES, New Orleans, United States and Georges Mavonga, Goma Volcano Observatory, Seismology, Goma, Congo
Blame the Rift: Magma Upwelling Over 3.1 My at the Chacana Shear Zone, Ecuador (1988449)
Patricia A Mothes1, Kenneth W W Sims2, Lisa Bayla Kant3, William C. McIntosh4, Brian R Jicha5, H. Elizabeth Gaunt6, Marco Daniel Córdova Aguilar7, Bernardo O Beate8, Ana Chiluisa9, Josue Salgado9 and Jennifer M Garrison10, (1)Instituto Geofísico, Escuela Politécnica Nacional, Quito, Ecuador, (2)University of Wyoming, Geology & Geophysics, Laramie, United States, (3)University of Wyoming, Geology and Geophysics, Laramie, WY, United States, (4)New Mexico Institute Mining & Tech, Socorro, NM, United States, (5)University of Wisconsin-Madison, Department of Geoscience, Madison, United States, (6)University College of London, London, United Kingdom, (7)Instituto Geofisico, Escuela Politecnica Nacional, Quito, Ecuador, (8)Escuela Politécnica Nacional, Quito, Ecuador, (9)Instituto Geofísico de la Escuela Politécnica Nacional, Quito, Ecuador, (10)California State University, Los ANgeles, San Pedro, CA, United States
