Scientific Sessions

The final number of sessions will depend upon the number of accepted presentations. Suggested names of session topics may change as planning of the colloquium progresses.

SESSION TOPICS

ISC01-Melt Evolution of Ophiolitic Magmas: Crustal and Upper Mantle Perpectives

Conveners: Yıldırım Dilek and Ercan Aldanmaz

Session Description: Recent studies in Tethyan and other ophiolite belts around the world have shown that the fragments of ancient oceanic lithosphere preserved in them may have formed in different tectonic settings, and that they commonly have a heterogeneous structural and geochemical makeup. This heterogeneity is in part due to the differences in melting processes and the mantle melt sources, and its nature and spatial/temporal extent can be documented through careful and integrated field, geochemical, isotopic and geochronological studies of crustal and upper mantle rocks. In this session, we will examine diverse case studies of the melt evolution of different ophiolites occurring in the eastern Mediterranean region and beyond. Relevant contributions from all disciplines of the ophiolite science are welcome.

ISC02-Role of Ophiolites and Related Units in Tethyan Orogenic Assembly

Conveners: Osman Parlak, Alastair Robertson and Aral İ. Okay

Ophiolites play a critical role in the assembly of the Tethyan orogen. Rather than being the remains of mid-ocean ridges as in many earlier interpretations many ophiolites formed above intra-oceanic subduction zones. These ophiolites record an early stage in the cycle of ocean closure that culminated in the emplacement of ophiolites onto continental margins, and eventually the complete closure of oceans. Early oceanic convergence is linked to the formation of sub-ophiolite metamorphic soles and associated melange units, which originally formed in a variety of rift to oceanic settings. On the other hand some ophiolites may also have formed in other tectonic settings including mid-ocean ridge, forearc and backarc which need to be considered.

Papers are invited for this session that consider the magmatic-tectonic setting of ophiolites, their formation age, their timing and processes of emplacement and their role in the relation to the wider palaeogeography. Comparisons of ophiolites of different ages and settings are especially welcome.

ISC03-Post-Collisional Cenozoic Extensional Tectonics in the Aegean Region

Conveners: İbrahim Çemen, Cahit Helvacı, Yalçın Ersoy, Özgür Karaoğlu and Zeynep Öner

The Aegean Region of Eastern Europe and Western Anatolia is one of the best examples of post-collisional extensional tectonics. Different Turkish and International research groups have been studying extensional structures, sedimentation, volcanism, metamorphism and metamorphic core complexes in the region. This session plans to bring these research groups together and provide a formal discussion on problems related to processes of extensional tectonics in the Aegean region. The session also plans to discuss next research questions in the region and possible methods of collecting data and answering these questions.

This session will follow the 3-days pre-meeting field trip to West Anatolia Extended Terrane.

ISC04-Electromagnetic Tomography in Subsurface Investigations

Conveners: Ahmet Tuğrul Başokur

The session will include the mapping of sedimentary basins, geoelectrical properties of the upper crust, lithosphere and asthenosphere derived from the electromagnetic methods such as magnetotelluric (MT), audio-magnetotellurics (AMT) and transient electromagnetic (TEM). The survey of economic targets, oil, gas, minerals and geothermal resources is also welcome. All investigations should be performed in the Aegean region and/or its surroundings.

ISC05-Remote Sensing and Geographic Information Systems

Conveners: Vahap Tecim and Güven Koçak

 

ISC06-Tectonic Assembly of the Tethyan Orogen in the Eastern Mediterranean Region

Conveners: Alastair Robertson, Dimitrios Papanikolaou, Aral İ. Okay, Timur Ustaömer and Osman Parlak

The main objective of this session is to present and discuss new data nearing on the tectonic assembly of the Tethyan orogen, especially in the Eastern Mediterranean region. Information may be from a single discipline (e.g. palaeomagnetism; igneous chemistry; metamorphic geology; sedimentology) or multidisciplinary (e.g. tectonic synthesis; palaeogeographic maps). Regional correlations are particularly important (e.g. trans-Aegean). Processes include rifting, strike-slip, subduction, accretion, collision and post-collisional deformation (suture tightening). Comparisons with comparable processes and settings in other regions are welcome (e.g. SW Pacific; Asia). We especially invite papers that consider the role of strike-slip (terrane displacement) that is likely to have been important at least during Late Precambrian, Late Palaeozoic, and Late Mesozoic-Early Tertiary time. Geochronology and sedimentary provenance are especially useful to chart terrane origin, migration and assembly.

ISC07-Palaeomagnetism of the Aegean and Anatolian Regions

Conveners: Orhan Tatar and John Piper

Turkey and the Eastern Mediterranean region are situated at the intersection of the Eurasian, African and Arabian plates. A site of convergence during the closure of the Neotethyan Ocean, it is now a broad region of accreted terranes where compression and shortening, extension and strike-slip tectonic regimes have all operated in the past or are continuing to operate at the present day. The adjoining Aegean region is one of the most seismically and volcanically-active sectors of the Alpine-Himalayan orogenic system. The geological evolution of the region has been explained by a number of different tectonic models. Palaeomagnetism is an important tool for evaluating these models and the major tool for quatifying deformation on long time scales. During the last 20 years there has been an important increase in the number and scale of palaeomagnetic studies across both Anatolia and the Aegean. This session aims to bring together palaeomagnetic studies conducted in these regions and evaluate their importance to resolving tectonic models.

ISC08-Tertiary Geodynamic Development of the Aegean Region: Magmatic Perspective

Conveners: Dejan Prelevic and Ioan Seghedi

This session welcomes studies that investigate the nature of the source regions of all magmatic rocks, through geochemical, petrological and modeling techniques. A particular focus is on the potential links between magma generation, its evolution and large-scale tectonic events such as subduction, crust overthickening, core-complex generation, continental rifting, lithosphere delamination, etc. Submissions that advance the understanding of the timing and style of magma source enrichment, and those discussing magmatism as a cause or a consequence of major geodynamic events are especially encouraged. Key geodynamic aspects of the transition from subduction-type magmatism to intra-plate - OIB-like type magma are welcome. We also encourage contributions that discuss the depth of mantle source components identified in various alkaline and ultra-alkaline magmas.

ISC09-Active Tectonics & Paleoseismology & Archaeoseismology

Conveners: Mustapha Meghraoui, Erhan Altunel and Stathis Stiros

The geodynamics of the Aegean region include transcurrent, extension and contraction active tectonics associated with the westward movement of the Anatolian plate and the Hellenic – Cyprus subduction zone. The Crete mega-thrust, Corinth and Büyük-Menderes graben-like basins and the strike-slip systems made of North Anatolian-East Anatolian and Dead Sea faults represent the major tectonic lines of the eastern Mediterranean regions. The earthquake activity is salient along some parts of these faults and recent studies in active tectonics, geodesy (GPS) and archaeoseismology provide some constraints on their long-term and short-term behavior. Modern techniques of investigations along faults using 3D numerical trenching, LiDAR mapping, InSAR, DGPS and GPS provide the necessary tools for a better understanding of the active deformation and related earthquake cycle.

In this session we seek contributions on the observation, analysis and modelling of field data in diverse seismically active regions that include subduction zones, continental faulting in contractional and extensional tectonic domains, and main transform faults.

ISC10-Seismotectonics of the Aegean Sea Region

Conveners: Anastasia Kiratzi and Nihal Akyol

The aim of the session is to bring together cross-cutting scientific contributions in any topic related to the seismotectonics of the Aegean Sea and the surrounding lands. Classic topics include the relationship between earthquakes, active tectonics and individual faults using diverse methodologies and data. We particularly seek contributions related to the study of previous and recent earthquake sequences which might shed light on the active tectonics of the region. Contributions using multiple datasets which include instrumental recordings, geological maps, seismic reflection profiles, field observations, GPS measurements and any other evidence from geomorphology and geophysics are most welcomed. Earthquake source studies and especially the effect of the source in the distribution of strong ground motions are also among the scope of the session.

ISC11-Non-Metallic and Metallic Deposits of the Aegean and Eastern Mediterranean Region

Conveners: Harald G. Dill and Cahit Helvacı

The conference may provide an unrivalled coverage of the geological setting of the Aegean and Eastern Mediterranean region, while the session on non-metallic and metallic deposits offers an opportunity to give an overview of economic geology from the cradle of copper mining to modern-day exploitation of bentonite deposits. Dealing with metals and minerals in this region transitional from Asia to Europe provides a venue for those involved in archeometallurgy and exploration, alike. This crustal section was affected by Alpine-type metallogenesis, featuring hypogene and supergene mineralization leading to world-class deposits of chromium and aluminum. The peculiar morpho-climatic situation along with the emplacement of one of the most prominent fold belts on earth yielded an ideal setting and was decisive for such a variegated spectrum of mineral deposits bearing among others Al, Cr, Sb, Hg, Cu, Pb, Zn, Au, Ag, B and a wide range of industrial minerals.

ISC12-Water Resources and Environment

Conveners: Alper Baba , Jochen Bundschuh and Avner Vengosh

The International Earth Sciences Colloquium on the Aegean Region provides a valuable opportunity for scientists in key related fields to discuss in the session on Water Resources and Environment on these issues, which comprises a topic at the interface of scientists, engineers, economists and politicians. This particular session forms a platform to discuss the impacts of climate change on water resources, water-rock interaction, effect of natural and anthropogenesis factors on water resources, water quality and the current groundwater management practices on the groundwater resources, and to define potential strategies to guarantee their sustainable use. It is aimed to discuss on strategies and define priorities for the much needed interdisciplinary work to mitigate the problem and to assure a sustainable water supply which can also guarantee the coverage of the water demand in the Aegean regions for future generations.

ISC13-Petrography & Geochemistry

Conveners: Osman Candan and Mümtaz Çolak

 

ISC14-Geothermal Systems & Energy Resources of the Aegean Regions

Conveners: Jochen Bundschuh, Avner Vengosh and Alper Baba

Due to its geo-tectonic setting, the Aegean region is rich in terrestrial and submarine geothermal resources. However, at present only a very small part of these resources is used despite that the resources could cover large parts of the regions electricity demand. This calls for a better understanding of the geothermal resources of the Aegean region and a promotion of their exploration and uses for direct applications and for electric power generation.

The Geothermal Systems & Energy Resources of the Aegean Regions: Resources, Opportunities and Needs, will be an interdisciplinary platform to exchange professional ideas in the field of geothermal energy resources, bringing together researchers, academicians, students, industrialists, farmers, planners and policy makers from the Aegean region as well as international experts and investors from the private sector. Keynote lectures will be delivered by experts from the region and from other "geothermally" developed countries. Scientific, political and economic-related topics will be focused on:
- geology, hydrogeology and hydrochemistry of geothermal reservoirs in the Aegean regions.
- a characterisation and evaluation of geothermal potentials in the Aegean regions considering high- and low-enthalpy wet systems and Enhanced Geothermal Systems.
- an overview of the state-of-art of geothermal use in the Aegean regions, including practical examples of feasibility, exploration and exploitation techniques of geothermal reservoirs.
- informing about future geothermal opportunities - rural electrification, power generation, direct use - including existing legal regulations.
- promoting the participation of the geothermal industry in the geothermal development of the Aegean regions, especially to support clean production technologies, like food processing, greenhouse cultivation, aquaculture, and balneology.

We plan to publish a selection of the contribution will be published in a book within the series Sustainable Energy Developments (CRC Press).

ISC15-Energy Production and the Effect on the Environment

Conveners: Avner Vengosh and Alper Baba

Energy exploitation and production consumes a large volume of water and have significant effects on the environment. In the United States it is estimated that about 40 percent of the total USA fresh surface-water withdrawal is for thermoelectric consumption, particularly for cooling coal plants. While water availability and possible changes induced from climate change and increasing demands for other sectors are important limiting factors, this session highlights the critical impacts on water quality and the environment. Traditionally, most of the environmental attention related to fossil fuel production has been focused on carbon emission to the atmosphere and consequent climatic changes. In this session we invited papers that discuss other aspects of environmental impacts that are induced directly and indirectly from energy exploration and production. This could include studies on the environmental effects of coal mining (e.g., acid mine drainage, surface mountaintop mining), coal production (e.g., contaminants in leachates originate from coal ash, water contamination associated with coal ash disposal), oil production (e.g., management and disposal of frequently saline and toxic produced water), shale-gas exploration and hydro-fracturing (e.g., methane contamination of shallow aquifer systems, disposal of fracking fluids and produced waters) and geothermal energy (e.g., disposal of toxic and boron-rich effluents). While low-cost energy is essential for economical development, direct and indirect effects on the environment might have significant long-term implications for ecological systems and human health. We invite scholars from the academy and industry, as well as policy makers from the Aegean region and beyond to present in this session their research and policy related to the intercepts of energy and the environment.

ISC16-Marine Geology & Geophysics

Conveners: Namık Çağatay and Mustafa Ergün

This session covers all aspects of marine and coastal geology, especially those topics related to the Eastern Mediterranean in general, and the Aegean Sea in particular. The specific topics of interest include:
- Geological evolution and neotectonics
- Coastal geomorphology and its processes
- Sea level and coastline changes
- Paleoceanography, water mass exchanges between Mediterranean and Black seas
- Sedimentary paleoclimate records
- Marine mineral and hydrocarbon resources
- Pollution of marine sediments

ISC17-Paleontology & Sedimentology

   Conveners: Sacit Özer and Tanju Kaya

 

ISC18-New Trends and Applications in Geo-Engineering

Conveners: Reşat Ulusay and Paul Marinos

The session on Engineering Geology, as an integral part of IESCA 2012, is designed to convene professionals to showcase innovative work in the fields of engineering geology and geotechnical engineering. The main objective of the session is to provide an opportunity for scientists and engineers working in this field to meet and present ideas, achievements and experiences.

The main topics include, but not limited to, the followings:
- Stability, monitoring and modeling of engineered slopes and underground structures in civil and mining applications and associated new design methodologies.
- Surface and subsurface investigation, innovations and geotechnical instrumentation.
- Engineering geology for geo-hazards and regional planning.
- Theoretical and experimental methods in rock and soil mechanics.
- Engineering geology for rehabilitation and protection of historical sites, and building stones.
- Earthquake geotechnical engineering.
- Engineering geology for urban planning and construction and the subterranean environment of cities.
- Engineering geology for dams and embankments.
- Waste disposal and underground storage.

ISC19-Usage of Construction Materials, Present and Ancient Time

Conveners: Atiye Tuğrul, Tamer Topal and A. Bahadır Yavuz

Construction Materials include a wide range of rock and minerals, such as dimension stone, sand, gravel, crushed stone, railway ballast, wave protection stone, pavement materials, cementitious materials etc. The worldwide consumption of construction materials is rapidly increasing, at the same time as available resources are getting more limited. Papers focusing on perspectives for the future and new solutions to pressing challenges in the sector are welcomed. The main subjects of the session are listed below.
- Geology, prospecting, and land – use planning in dimension stone, aggregate and armourstone production
- Testing and classification of construction materials and available production techniques
- Assessment of soil and stone performance in use
- Environmental in?uences and reclamation of quarrying and processing – sustainable development
- Waste and left-over materials from dimension stone and aggregate quarries and recycling of construction materials
- Deterioration of Building Stones, Conservation of Historical Monuments, Ancient Quarries

ISC20-Radar Interferometry and Land Subsidence Hazards

Conveners: Zhenhong Li, Noel Gourmelen and Roberto Tomas Jover

With its global coverage and all-weather imaging capability, Interferometric SAR (InSAR) has been revolutionizing our ability to image the Earth’s surface and the evolution of its shape over time. In turn, this has led to many new insights into geophysical and engineering processes, such as volcanoes, earthquakes, landslides and mining activity. This session will focus on papers that present advanced InSAR techniques (e.g. correction models to address its major error sources, time series approaches such as Persistent Scatterers and Small Baseline InSAR) and their applications to land subsidence hazards.

ISC21-Engineering Seismology

Conveners: Oğuz Özel and Eşref Yalçınkaya

Engineering seismology combines the disciplines of seismology, geology, geophysics, and earthquake engineering for the evaluation of deterministic and probabilistic seismic hazard and risk. The proposed session covers palaeo-, archaeo-, and historical seismology, earthquake catalogues, the characterisation of potential seismic sources of future large earthquakes, ground motion prediction equations, site effects and microzonation, including phenomena such as liquefaction of sediments, and rock- and slope instabilities. The estimation of ground motion parameters, vulnerability assessment, and scenario earthquake modeling for earthquake engineering applications are also within the scope of this session. This scientific session aims at promoting the interaction and exchange of ideas on the broad theme of engineering problems connected with earthquakes and their solutions.



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