Rock magnetism has a broad range of applications in paleo- and archeo-magnetism, biogeomagnetism, environmental magnetism, and planetary magnetism. Rock magnetic studies on natural and synthetic materials bring new insights on the magnetic properties of iron-bearing minerals and their response to physical, chemical and environmental changes.

This session aims to be a forum for the study of magnetism in natural materials in its broadest sense. We seek contributions on developing new and rethinking old methods and instrumentation, investigating properties of magnetic minerals occurring in a wide variety of terrestrial and extraterrestrial rocks, and applying this knowledge to solve outstanding problems in Earth and planetary sciences. Contributions on theoretical, numerical and experimental approaches in paleomagnetism rock and environmental magnetism are also welcome.

The detailed understanding of the geomagnetic field strength (palaeointensity) is fundamental for several Sciences disciplines (Geophysics, Stratigraphy and Volcanology, Engineering, Paleoclimatology, Human history and Archaeology, Art, etc..). Despite the great effort made to improve time and space resolution of both regional and global reconstructions, fundamental properties of the geomagnetic field, such as the average strength and its spatial and temporal short and long-term variations, remain debated and fundamental questions remain unanswered. Indeed, the methods to determine past geomagnetic field strength present difficulties and discrepancies, resulting in scattered and sparse records.

This session welcomes abstracts presenting methodological advances, new data and models for a better understanding of the strength of the Earth´s magnetic field and features. Contributions presenting absolute and relative palaeointensities, rock magnetic and micromagnetic investigation applied to address the palaeointensity determination issue are also welcomed.

Recent methodological and instrumental advances in paleomagnetic and magnetic fabric techniques are continuously increasing their already high potential in solving research questions in various Earth science disciplines. In this session, we highlight these theoretical and methodological advances and the universal application of paleomagnetism. In particular, the session will explore contributions combining paleomagnetic and magnetic fabric data retrieved by several means of fabric analysis (magnetic and non-magnetic) and novel approaches in data evaluation. Applications presented will bear on fundamental interpretations of paleomagnetic data, tectonic reconstructions, the nature of the past geomagnetic field and the use of magnetism to track the dispersal of humans and their impacts on the environment.

Scientific drilling through the International Ocean Discovery Program (IODP) and the International Continental Scientific Drilling Program (ICDP) continues to provide unique opportunities to investigate the workings of the interior of our planet, Earth’s cycles, natural hazards and the distribution of subsurface microbial life. The past and current scientific drilling programs have brought major advances in many multidisciplinary fields of socio-economic relevance, such as climate and ecosystem evolution, palaeoceanography, the deep biosphere, deep crustal and tectonic processes, geodynamics and geohazards. This session invites contributions that present and/or review recent scientific results from deep Earth sampling and monitoring through ocean and continental drilling projects. Furthermore, we encourage contributions that outline perspectives and visions for future drilling projects, in particular projects using a multi-platform approach.

Public information:
Please find below messages to the international scientific drilling community from Gilbert Camoin (Director of the ECORD Managing Agency) and Marco Bohnhoff (ICDP Executive Director), at this most difficult time resulting from the COVID-19 crisis:

Message from ECORD/IODP, Director ECORD Management Agency:

Science knowledge over the last 50 years of ocean drilling has greatly enhanced our understanding of the Earth system. Since its creation in 2003, ECORD has played a leading role in the successive ocean drilling programmes. During 2019, the scientific ocean drilling community took a unique multi-decadal approach to formulating the future of this international program in the new 2050 Science Framework: Exploring Earth by Scientific Ocean Drilling. The unprecedented health crisis related to the COVID-19 disease outbreak is severely affecting the activities of our programme, but the scientific ocean drilling community remains mobilized for a brighter future. In these different times, I do hope that you and your loved ones will stay safe and healthy.

Message from the ICDP Executive Director Marco Bohnhoff:

COVID-19 is having a huge impact on society as a whole and the personal life of most of us has been turned upside down. However, ICDP is also active in times of COVID-19. A new ICDP Science Plan for the time after 2021 is currently being prepared and will be published in the second half of 2020. For those who submitted drilling or workshop proposals this year: the ICDP Panels will meet online between May 11-16 and decide about your proposals. Good news is also that the COSC-2 drilling is Sweden runs very successful, passing a depth of 500 m on April 30. Whether the ICDP training course can take place in October as planned is currently still open. Please check the ICDP website or our social media channels regularly for updates. I wish you a successful EGU session, stay healthy, and I look forward to seeing you again, hopefully soon.

Since the Neoproterozoic breakup of the supercontinent Rodinia, continental fragments episodically rifted from their original location and systematically drifted towards more northerly positions, culminating in the Late Palaeozoic amalgamation of the supercontinent Pangaea. In this session we focus on the processes responsible for the transportation of terranes from Gondwana to the northern continental masses (Baltica, Laurentia, and later Laurussia) before, during and after the collision between Laurussia and Gondwana and the amalgamation of Pangaea. We welcome multi-disciplinary (tectonics, geodynamics, basin analysis, palaeomagnetism, palaeogeography, plate reconstruction, etc.) contributions dealing with i) the geodynamic evolution (rift-drift-accretion) of terranes such as Ganderia, Avalonia, Carolinia, Meguma, Armorica, Moesia, North China, South China, etc., ii) the fate of intervening oceans (Iapetus, Rheic, Palaeotethys, Neotethys, etc.) and iii) the geodynamic drivers of their respective evolutions.
Contribution to IGCP project No. 648: Supercontinent Cycles and Global Geodynamics.

Interactions between tectonics, climate and biotic evolution are ideally expressed in Asian orogenies. The ongoing surge of international research on Asian regions enables to better constrain paleoenvironmental changes and biotic evolutions as well as their potential driving mechanisms such as global climate, the India-Asia collision and the tectonic growth of the Himalayan-Tibetan and other Asian orogens. Together these efforts allow for a comprehensive paleogeographic and paleoenvironmental reconstructions that enable to constrain climate modelling experiments which permit validation of hypotheses on potential interactions.
The goal of this session is to assemble research efforts that constrain Asian tectonic, climate (monsoons, westerlies, aridification), land-sea distribution, surface processes or paleobiogeographic evolution at various timescales. We invite contributions from any discipline aiming for this goal including broadly integrated stratigraphy, tectonic, biogeology, climate modelling, geodynamic, oceanography, geochemistry or petrology.