VGP31A:
Chemical Scene Investigations of Large Igneous Provinces (CSI-LIPs) I

Submit an Abstract to this Session

Session ID#: 6822

Session Description:
This session would include presentations that ‘solve case’ histories--- in taking particular LIPs (large igneous provinces) and using analytical techniques (mainly geochemistry) to 'interview' and 'investigate' the ‘suspect’-ed mechanisms and ultimately determine which are ‘guilty’ of producing the observed compositional patterns. More specifically this session would focus on using geochemistry (integrated with geochronology and paleomagnetic/magnetic fabric studies) as a tool to explore mantle sources, magma pathways and lithospheric/crustal interactions within a LIP system. Some LIPs consist of a dominant pulse with distinct geochemical ‘fingerprint ‘ implying restricted or localized chemical/isotopic processes within the plumbing system. Other LIPs exhibit more than one major pulse with a range of chemistries reflecting multiple magma batches and varied pathways and interactions within a more complicated plumbing system.
OSPA Liaison:  Richard E Ernst, Carleton University, Earth Sciences, Ottawa, ON, Canada
Chairs:  Cole Kingsbury, Carleton University, Earth Sciences, Ottawa, ON, Canada and Richard E Ernst, Ernst Geosciences, Department of Earth Sciences, Ottawa, ON, Canada
Primary Convener:  Richard E Ernst, Carleton University, Earth Sciences, Ottawa, ON, Canada
Conveners:  Cole Kingsbury, Carleton University, Earth Sciences, Ottawa, ON, Canada and Pete N Hollings, Lakehead University, Thunder Bay, ON, Canada
Index Terms:

1065 Major and trace element geochemistry [GEOCHEMISTRY]
1115 Radioisotope geochronology [GEOCHRONOLOGY]
1518 Magnetic fabrics and anisotropy [GEOMAGNETISM AND PALEOMAGNETISM]
3619 Magma genesis and partial melting [MINERALOGY AND PETROLOGY]

Abstracts Submitted to this Session:

VGP31A-01
Controls on the chemical composition of flood volcanics (Invited) (34158)
Nicholas T Arndt, Université Grenoble Alpes, ISTerre, Grenoble, France
VGP31A-02
Linkages between the Neoproterozoic Natkusiak basalts and Franklin sills on Victoria Island, Arctic Canada (36218)
Charles D Beard1,2, Dominique Weis3, Jean H J Bedard4, James S Scoates2 and Trent A Dell'Oro2, (1)McGill University, Earth & Planetary Sciences, Montreal, QC, Canada, (2)University of British Columbia, Vancouver, BC, Canada, (3)University of British Columbia, PCIGR, Earth, Ocean and Atmospheric Sciences, Vancouver, BC, Canada, (4)Geological Survey of Canada, Quebec, QC, Canada
VGP31A-03
Newly discovered 1550 Ma mafic magmatism in the Tobacco Root Mountains, MT USA: An end to the North American Magmatic Gap? (33794)
Chris Rogers1, Richard E Ernst1,2, Brian Cousens3, Stephen S Harlan4 and Ulf Söderlund5, (1)Carleton University, Earth Sciences, Ottawa, ON, Canada, (2)Ernst Geosciences, Department of Earth Sciences, Ottawa, ON, Canada, (3)Carleton University, Ottawa, ON, Canada, (4)National Science Foundation, Geosciences Directorate/ Division of Earth Sciences, Arlington, VA, United States, (5)Lund University, Department of Geology, Lund, Sweden
VGP31A-04
Chigu Tso intrusions in the remnant Comei large igneous province, SE Tibet: implication for Early Cretaceous Kerguelen plume-Eastern Gondwana lithosphere interaction (34519)
Ying Xia1,2, Di-Cheng Zhu3, Richard E Ernst2, Brian Cousens2 and Shuangquan Zhang2, (1)China University of Geosciences Beijing, School of Earth Sciences and Resources, Beijing, China, (2)Carleton University, Earth Sciences, Ottawa, ON, Canada, (3)China University of Geosciences Beijing (dchengzhu@163.com), Beijing, China
VGP31A-05
A Geochemical Proxy Approach to LIP Forensics (34283)
Julian Anthony Pearce, Cardiff University, Cardiff, CF24, United Kingdom, Richard E Ernst, Ernst Geosciences, Department of Earth Sciences, Ottawa, ON, Canada and David William Peate, University of Iowa, Iowa City, IA, United States
VGP31A-06
New insights into the relationship between the Central Atlantic Magmatic Province (CAMP) and the End-Triassic extinction from CAMP U-Pb zircon and baddeleyite dates. (34919)
Joshua Davies, University of Geneva, Geneva, Switzerland, Herve Bertand, Ecole Normale Supérieure de Lyon UMR-CNRS, Laboratoire de Géologie, Lyon, France, Nasrrddine Youbi, Cadi Ayyad University, Faculty of Sciences-Semlalia, Department of Geology, Marrakech, Morocco and Urs Schaltegger, University of Geneva, Earth Sciences, Geneva, Switzerland
VGP31A-08
Lyra Basin and Louisville Seamount Chain: Two Suspects for the Ontong Java Plateau Hotspot Trail? (34899)
Maria Luisa G Tejada, Japan Agency for Marine-Earth Science and Technology (JAMSTEC), Institute for Marin Geodynamics, Yokosuka, Japan
See more of: Volcanology, Geochemistry, and Petrology