Connecting subduction and collisional processes in East Antarctica during Gondwana assembly with airborne and satellite geophysical imaging ...

• Main Authors: Ferraccioli, Fausto, Eagles, Graeme, Wu, Guochao, Eglington, Bruce, Jacobs, Joachim, Ebbing, Joerg, Forsberg, Rene, Jordan, Tom, Golynsky, Alexander, Green, Chris
• Format: Conference Object
• Language: unknown
• Published: GFZ German Research Centre for Geosciences 2023
• Subjects: Antarctic; East Antarctica; Dronning Maud Land; Pacific; Gamburtsev Subglacial Mountains; Antarc*; Antarctica; Ice Sheet
• Online Access: https://dx.doi.org/10.57757/iugg23-2656; https://gfzpublic.gfz-potsdam.de/pubman/item/item_5019256

<!--!introduction!--> East Antarctica is the least understood continent involved in the assembly of Gondwana, a key stage in the global supercontinent cycle. Thick crust stretches from Dronning Maud Land to the Gamburtsev Subglacial Mountains, suggesting that the Kuunga Orogen, formed during the collision of India and East Antarctica during Gondwana assembly, had a significant impact on the Precambrian lithosphere of parts of interior East Antarctica. Geological and geophysical research has revealed key aspects of the collisional East African-Antarctic Orogen and the subduction-related Ross Orogen along the paleo-Pacific margin of Gondwana. However, the paths and architecture of these different orogens in the entirely ice sheet covered and remote interior of East Antarctica have remained more difficult to investigate, making it even more challenging to link subduction and collisional processes leading to Gondwana assembly and growth. Here we present a new satellite-conformed aeromagnetic anomaly ... : The 28th IUGG General Assembly (IUGG2023) (Berlin 2023) ...