GP004
Crustal Magnetic Anomalies: Induced and Remanent, Marine and Continental, Terrestrial and Planetary
Session ID#: 80147
Session Description:
Magnetic materials in crustal rocks commonly occur in sufficient quantities to produce notable magnetic anomalies, at a wide range of scales. These anomalies are useful for investigating crustal structures, solving geologic problems, and providing clues to subsurface compositions and conditions. We encourage submissions of anomaly investigations on Earth and other planets, including global, regional, and local studies down to individual mineral scales.
Index Terms:
1517 Magnetic anomalies: modeling and interpretation [GEOMAGNETISM AND PALEOMAGNETISM]
1519 Magnetic mineralogy and petrology [GEOMAGNETISM AND PALEOMAGNETISM]
1541 Satellite magnetics: main field, crustal field, external field [GEOMAGNETISM AND PALEOMAGNETISM]
1595 Planetary magnetism: all frequencies and wavelengths [GEOMAGNETISM AND PALEOMAGNETISM]
Primary Convener: Laurie L Brown, University of Massachusetts Amherst, Geosciences, Amherst, MA, United States
Convener: Suzanne A McEnroe, Norwegian University of Science and Technology, Department of Geoscience and Petroleum, Trondheim, Norway
Primary Liaison: Laurie L Brown, University of Massachusetts Amherst, Geosciences, Amherst, MA, United States
Moment Magnitude Potential of the Crittenden County Fault Zone (487035)
Christopher Marlow1,2 and Christine Ann Powell1,2, (1)Center for Earthquake Research and Information, Memphis, TN, United States, (2)University of Memphis, Memphis, TN, United States
Imaging of the shallow plumbing system of Salina Island from modeling of magnetic data (492259)
Luca Cocchi1, Riccardo De Ritis1, Daniele Casalbore2, Claudia Romagnoli3, Federico Lucchi3, Claudio Antonio Tranne3 and Guido Ventura1, (1)Istituto Nazionale di Geofisica e Vulcanologia, Rome, Italy, (2)Sapienza University of Rome, Rome, Italy, (3)University of Bologna, Bologna, Italy
A discussion of magnetic anomalies, crustal geometries, and geodynamic models in the Gulf of Mexico. (502800)
Daniel A Minguez, Chevron Energy Technology Company, Houston, TX, United States, Peter J Lovely, Chevron, Houston, TX, United States and Elizabeth A E Johnson, Chevron Corporation San Ramon, San Ramon, CA, United States
The internal architecture of the Reinfjord ultramafic complex from high resolution magnetic, gravity and petrophysical data (515941)
Zeudia Pastore1, Nathan S Church1, Geertje W. ter Maat1, Alexander Michels1, Christine Fichler2, Rune B Larsen3 and Suzanne A McEnroe1, (1)Norwegian University of Science and Technology, Department of Geoscience and Petroleum, Trondheim, Norway, (2)Norwegian University of Science and Technology, Department of Gescience and Petroleum, Trondheim, Norway, (3)Norwegian University of Science and Technology, Department of Geosciences and Petroleum, Trondheim, Norway
Remanent-Controlled Negative Magnetic Anomaly Associated with the Garsaknatt Intrusion, Rogaland Igneous Complex, Norway (539883)
Laurie L Brown1, Suzanne A McEnroe2 and Zeudia Pastore2, (1)University of Massachusetts Amherst, Geosciences, Amherst, MA, United States, (2)Norwegian University of Science and Technology, Department of Geoscience and Petroleum, Trondheim, Norway
A Palaeoproterozoic metamorphic amphibolite to granulite facies transition in Vesteralen, northern Norway, or a tectonic boundary? Insights from magnetic data. (540462)
Suzanne A McEnroe1, Laurie L Brown2, Zeudia Pastore1, Geertje W. ter Maat1 and Alexander Michels1, (1)Norwegian University of Science and Technology, Department of Geoscience and Petroleum, Trondheim, Norway, (2)University of Massachusetts Amherst, Geosciences, Amherst, MA, United States
New constraints on the dynamo timing and crustal magnetization on Mars from MAVEN observations (544967)
Anna Mittelholz, University of British Columbia, Department of Earth, Ocean and Atmospheric Science, Vancouver, BC, Canada, Catherine Johnson, University of British Columbia, Department of Earth, Ocean and Atmospheric Sciences, Vancouver, BC, Canada, Roger J Phillips, Southwest Research Institute, Boulder, CO, United States, Benoit Langlais, Lab Planetologie Geodynamique, Nantes, France and Joshua M Feinberg, University of Minnesota, Minneapolis, MN, United States
Imaging the Structure of Active Stratovolcanos From Aeromagnetic Surveys – Popocatepetl Volcano, Central Mexico (559981)
Jaime Urrutia Fucugauchi, National Autonomous University of Mexico, Ciudad DE Armería, Mexico, Hector Lopez-Loera, Instituto Potosino de Investigación Científica y Tecnológica, Departamento de Geocienicas Aplicadas, San Luis Potosi, Mexico, Rafael Jeronimo-Bayona, Universidad Nacional Autonoma de Mexico, Instituto de Geofisica, Mexico, Mexico and Ligia L Perez-Cruz, Univ. Nal. Auton. de Mexico, Mexico D.F., Mexico
New airborne magnetic and radiometric data over the Charleston, South Carolina, area reveal subsurface structures and variations in Quaternary sedimentary processes (564049)
Anjana K Shah, USGS Crustal Geophysics and Geochemistry Science Center Denver, Denver, CO, United States, Thomas L Pratt, USGS Headquarters, Reston, VA, United States, J. Wright Horton Jr, USGS, Reston, VA, United States, Scott Howard, Moffett Field, CA, United States and Scott Harris, College of Charleston, Geology and Environmental Geosciences, Charleston, SC, United States
Hydrothermal Dissolution of Titanomagnetite Dramatically Reduces Magnetic Remanence in Basaltic Ocean Crust: Direct Evidence from the Southwest Indian Ridge (570000)
Shishun Wang1, Liao Chang1, Wu Tao2 and Chunhui Tao2, (1)Peking University, School of Earth and Space Sciences, Beijing, China, (2)Second Institute of Oceanography, MNR, China, Hangzhou, China
Structural and Geothermal Implications from a Detailed Geophysical Investigation, Northeastern Oregon (607318)
Brent T. Ritzinger1, Jonathan M. G. Glen1, Jared Peacock1, Richard J Blakely1, Patrick Mills2 and Brian L Sherrod3, (1)USGS, Menlo Park, CA, United States, (2)Confederated Tribes of the Umatilla Indian Reservation, Pendleton, OR, United States, (3)USGS, Seattle, WA, United States
Temporal Variations of Magnetic Crustal Field Anomalies -- Implications for Source Inversion and Airborne Magnetic Anomaly Navigation (609627)
Brian Meyer, CIRES, Boulder, CO, United States, Aaron Canciani, Air Force Institute of Technology, Bellbrook, United States, Richard Saltus, University of Colorado, Boulder, CO, United States and Arnaud Chulliat, National Geophysical Data Center, Boulder, CO, United States
Structural Interpretation of an Alkaline-Carbonatite Complex at Magnet Cove, Arkansas Using Gravity and Magnetic Methods (610150)
Chelsea Morgan Amaral, University of Arkansas, Fayetteville, AR, United States and Andrew P Lamb, University of Arkansas, Geosciences, Fayetteville, AR, United States
WDMAM 2.1: New Version of the World Digital Magnetic Anomaly Map Released (611089)
Yujin Choi, CNRS, Paris Cedex 16, France, Jerome Dyment, Université de Paris, Institut de physique du globe de Paris, CNRS, F-75005 Paris, France, Paris, France, Vincent Lesur, Institut de Physique du Globe de Paris, Sorbonne Paris Cité, Université Paris Diderot, UMR 7154 CNRS/INSU, Paris, France, Andreina Garcia-REYES, Université de Paris, Institut de physique du globe de Paris, CNRS, F-75005 Paris, France, Geosciences Marines, Paris, France, Tamara Litvinova, VSEGEI, St Petersburg, Russia and Mohamed Hamoudi, Université des Sciences et Technologies Houari Boumediene, Algiers, Algeria
How microstructures control remanent magnetization: Micromagnetic models and bulk measurements of exsolved magnetite in basalts of the Stardalur volcano, Iceland (612931)
Geertje W. ter Maat1, Karl Fabian2, Suzanne A McEnroe1 and Nathan S Church3, (1)Norwegian University of Science and Technology, Department of Geoscience and Petroleum, Trondheim, Norway, (2)Geological Survey of Norway, Trondheim, Norway, (3)NTNU, Department of Geoscience and Petroleum, Trondheim, Norway
