IAS Special Lecture Tours
Announcing the IAS Special Lecture Tour 2019
The International Association of Sedimentologists is delighted to announce the line-up of speakers for the 2019 IAS Special Lecture Tour. The 2019 IAS Special Lecture Tour will feature presentations from three global leaders in the field of Sedimentology.
Professor Rachel Wood is Professor of Carbonate Geoscience at the University of Edinburgh and Co-Director of the International Centre for Carbonate Reservoirs. Rachel was the recipient of the 2018 Johannes Walther Medal of the International Association of Sedimentologists in recognition of her research making a significant impact in the field of sedimentology. Rachel’s research interests incorporate multiple facets within the field of carbonate sedimentology. Current research focuses on biomineralisation and reef evolution, diagenesis, modelling of carbonate systems and the role of changing sea water chemistry in carbonate production.
Professor Christopher Fielding holds the Coffman Chair of Sedimentary Geology at the University of Nebraska-Lincoln. Chris’ research encompasses the sedimentology and stratigraphy of continental, coastal and shallow-marine clastic depositional systems, with a particular focus on applications to exploration for mineral resources, principally hydrocarbons and coal. His current research is focused on stratal stacking patterns in continental margin successions, with particular emphasis on stratigraphic models for successions accumulated under low-accommodation conditions.
Professor Adrian Immenhauser occupies the Chair for Sediment and Isotope Geology at the Ruhr-University Bochum and leads the Marine carbonate archives: Controls on carbonate precipitation and pathways of diagenetic alteration (CHARON) research initiative focusing on carbonate nucleation, precipitation, and diagenesis. Adrian is the former president of the IAS and enjoys a diverse range of research activities including process-oriented sedimentology, paleoceanography, inorganic geochemistry, carbonate diagenesis, sequence stratigraphy, bio-induced sedimentology and continental climate research.
The presentations on offer for the 2019 IAS Special Lecture Tour are detailed below. Guidelines for applying to be included in the lecture tour can be found here.
- What triggered the Ediacaran-Cambrian rise of animals? Professor Rachel Wood
Animals first appeared about 570 million years ago, with their rise culminating in the Cambrian Explosion and the diversification of carbonate skeletons. I will explore the environmental triggers which governed this revolution in life, particularly the role of oxygen, as well as changes in sedimentology, and the carbon cycle.
- Is the past the key to the future? Carbonates, mass extinctions, and diagenesis Professor Rachel Wood
The world faces tremendous environmental perturbations, but how can past analogues shed any light on our future path? Here the importance of succession and the history of past events is important in predicting the future, and I will illustrate this by drawing on a range of case studies from mass extinctions to carbonate diagenesis.
- Towards a new generation of facies models for fluvial systems and their deposit Professor Christopher Fielding
Extant fluvial facies models based on channel planform have limited predictive capability, and there is a need for more reliable models. Recent research has pointed to the role of discharge variability as a control on channel sediment accretion patterns. I develop this theme as a basis for a new classification of rivers and their deposits, using a coefficient of inter-annual peak discharge variability.
- The end-Permian mass extinction from
a high southern palaeolatitude perspective Professor Christopher Fielding
The causes and effects of the end-Permian Mass Extinction (EPME) are not as fully understood in the high palaeolatitudes as elsewhere. I synthesise results from a multi-disciplinary investigation of the EPME in eastern Australia. Floral turnover occurred prior to the end-Permian and prior to the marine extinction event during a brief climatic perturbation, in a coastal plain setting that was otherwise minimally disrupted. Far-field effects from Siberian Traps emplacement are invoked as the principal cause of the biotic crisis in this region.
- Aptian oceanic anoxia - The shallow marine perspectiv Professor Adrian Immenhauser
Cretaceous oceanic anoxia is a major research theme in sedimentary geology, palaeontology, and palaeoceanography. Much of the previous research, however, has focussed on basinal anoxia and (hemi)pelagic organic rich sediment (black shale) deposition. This presentation sheds light on the complex processes taking place in the Tethyan carbonate platform domain during the Aptian OAE1a.
- Quantitative carbonate diagenesis Professor Adrian Immenhauser
Following deposition or secretion, all carbonates undergo early to deep burial diagenesis. This presentation makes use of a large set of experimental (quantitative) data on carbonate diagenesis placed into their context of mineralogy, geochemistry, kinetics, and thermodynamics. Experimental data are compared and contrasted with observations and processes known from natural diagenetic pathways. Work shown has relevance for both applied and fundamental research.