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ASEG NSW - The influence of dynamic topography, climate, and tectonics on the Nile River source-to-sink system

Event Type

Event Date

Wednesday, May 19, 2021

Event Location

Event Address

Virtual (Zoom) & Level 2, Club York (99 York St, Sydney. Room 'York 2')

Event Start

1730 for 1800 start

Event End

1900

Event Details

The next technical meeting will be held on Wednesday 19th May, we will also be livestreaming it on zoom only (the presentation will not be available for viewing later). Please see details below:

 

Presenter:          Chris Alfonso (USYD)

Topic:                  The influence of dynamic topography, climate, and tectonics on the Nile River source-to-sink system

Time:                   5:30 for 6pm start

Address:             Level 2, Club York (99 York St, Sydney. Room 'York 2')

 

Zoom registration:         https://us02web.zoom.us/webinar/register/WN_x9aipncxT3Wn4TIQdr06AA

Meeting registration:    https://www.surveymonkey.com/r/TYFG2GM by Monday 17th May – due to COVID restrictions we require a registration for in-person meetings. If you have trouble registering please email nswsecretary@aseg.org.au 

 

Summary:

Understanding the more than 30 Myr history of the Nile River can provide great insight into the evolution of one of the world's largest river systems and the major hydrocarbon reserves of the Nile Delta. This work builds on previous studies which explored the relationship between the river's course and the dynamic topography of Northeast Africa by considering additional possible influences on the Nile's evolution such as climate change and tectonics. These factors are incorporated into a numerical landscape evolution and stratigraphic modelling framework which makes use of the Badlands software package (https://badlands.readthedocs.io) to test the effects of multiple different scenarios for each factor. The analysis of model results involves one of the first applications of the techniques of sequence stratigraphy to a realistic numerical model. These results show that while dynamic topography, along with climate change, likely played a significant role in the Nile's history, tectonic events – including the formation of the Red Sea Hills and uplift and volcanism of the Ethiopian Plateau – appear to have had the strongest influence on the river's evolution.

 

Light refreshments will be available as usual, hope to see you there.