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Information on Symposia per Science Theme

Theme No.

Theme Title

Number of Symposia proposed

Symposia Title

Symposia Conveners

Biographical sketch of the Conveners




Imaging Earth’s Interior

Dr. V. M. Tiwari,


Dr. Ajay Manglik


Prof. Hitoshi Kawakatsu



Recent Advances in Near Surface Geophysics

Gerald Gabriel


1997 PhD TU Clausthal, since 1998 LIAG, since 2016 acting head of department ‘Seismics, Gravimetry, Magnetics’; lecturer at Leibniz Universität Hannover, associate editor ‘Near Surface Geophysics’

near surface geophysics, technical developments, methodical developments, case studies

Near-surface geophysical exploration methods are particularly relevant with regard to exploration and use of the economically viable but also vulnerable subsurface, a task of high societal relevance. This covers a wide range of applications, for instance, the exploration of natural resources, geotechnical exploration, landscape evolution, and archaeology. Apart from manifold applications, urban regions are moving into the spotlight of near-surface investigations, due to their increased vulnerability, thus posing new challenges to the methods available. Simultaneously, the demands on the spatial resolution of the provided information, in particular of 3D structures and parameters, are steadily increasing; comprehensive understanding of the system requires innovative methods to monitor and even possibly forecast geological processes. These developments in acquisition technology must be accompanied by progress in the processing of the acquired data, in numerical modelling, and even in data management.

This symposium aims to address all aspects related to near-surface geophysics studies.

Images of the Deep Earth and Geodynamics

Hitoshi Kawakatsu


Claudio Faccenna


Thorsten W. Becker


1. Seismologist

2. Geologist

3. Geodynamicist

mantle, core, continental collision, subduction, lithosphere-asthenosphere system

This symposium intends to cover global and regional-scale deep Earth structural imaging, the links between deep structure and surface geology and related geodynamical modelling and analysis. Targets for imaging include the lithosphere-asthenosphere system beneath continents and oceanic basins, subduction and continental collision, the mantle transition zone, mantle plumes, the lower mantle/CMB and the core. Of particular interest are the large-scale mantle and lithospheric processes responsible for the Indo-Eurasia collision. Questions include: Why did the Indian plate move so fast, and what controlled its motion throughout the Cenozoic? What controls orogeny and deformation within the Indian and Eurasian lithosphere? How is the negative geoid anomaly over India related to deep mantle dynamics? How is regional plate tectonics affected by plumes and their potential surface impact, including the Deccan traps?

Imaging the Crust and Lithosphere Beneath the Continents

M. Ravi Kumar,


Made significant contributions towards investigating the shear structure, composition and deformation of the lithosphere and sub-lithospheric mantle and decipher their bearing on the evolution and seismogenesis in intra and inter plate tectonic environments

Crustal structure, Age, composition, Lithosphere Asthenosphere boundary, Mid Lithospheric Discontinuities

High-resolution imaging of the crust-mantle structure holds the key to elucidate the evolution of the diverse geological provinces that constitute the Earth's surface. In spite of the rapid strides in imaging technology, the continental interiors, in particular small scale heterogeneities within continents, imprints of paleo-subduction, detection of weak discontinuities and their role in continental evolution largely remained tentative. Also, processes like horizontal accretion by shallow subduction or magmatic differentiation, mantle layering and dynamics, nature and depth to the Lithosphere- Asthenosphere boundary and Mid Lithospheric Discontinuity, their bearing on plate tectonics, strain localization and earthquake genesis, still remain to be resolved. Dense deployments of permanent and array type multi parametric geophysical instruments in a phased manner coupled with the development of powerful computers for processing and simulation has enabled high- resolution imaging of the spatial variations in the structure of various provinces. This symposium intends to address high-resolution imaging of the crust and mantle part of the lithosphere and its bearing on the evolution of the continents, geodynamics, plate tectonics and geohazards.

Crustal structure and Deformation in Active Tectonic regions with Special Reference to the Himalaya

Ajay Manglik


Ph.D. 1994; Scientist, CSIR-NGRI since 1989; Research experience in modelling of geodynamical heat and mass transport processes in earth’s interior, electromagnetic geophysics, and geophysical inversion. Group Head for airborne near-surface exploration and geophysical imaging of the NW Himalaya

Geophysics, Active tectonics, Himalaya, collision belt

Lithospheric plate boundaries are the regions of active deformation and geogenic hazards, which are manifestations of the dynamic processes operative at multi-scales within the Earth’s interior. Understanding of these processes requires knowledge of the structure and physical/mechanical properties of the subsurface rocks besides information about the tectonic forces leading to deformation. Integration of resolvable images of the Earth’s interior obtained by various geophysical techniques coupled with geodetic measurements is needed for comprehensive understanding of active tectonic regions.

The symposium aims to address topics related to geophysical imaging of the crustal structure of active tectonics regions and geodetic measurements. Special emphasis will be on the Himalayan collision belt and the Andaman-Sumatra subduction zone.