Join us for an enlightening session with Dan Sandiford from The University of Sydney, where he will explore the dynamic world of mantle and lithosphere dynamics, with a particular emphasis on understanding stress and deformation patterns within slabs.
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Join us for an insightful session featuring Associate Professor Stuart Clark from UNSW Sydney’s School of Minerals and Energy Resources Engineering. In this event, he will delve into the fascinating realm of geophysical data interpretation and geological modeling, showcasing the integration of cutting-edge machine learning techniques and physics-based methodologies.
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Our upcoming event features Isra Ezad from Macquarie University, who will be delving into “The Role of Volatiles in Mantle Melting: Observations from High-Pressure Experiments.” Mark your calendars for August 23rd and secure your spot for an enriching experience. Zoom attendance available for remote participants. See you there!
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We are delighted to invite you to the next talk in the Earthbyte Seminar Series, where we will delve into the fascinating world of “Plate Boundaries, Plumes, and Porphyries: the effect of plume-modified oceanic crust on porphyry development in the Americas since the Early Cretaceous.” This enlightening presentation will be delivered by Derek Wyman from the University of Sydney (USYD). Register here: EventBrite link
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Join us on Wednesday, 24th May at 11:00 am AEDT for the next talk in the EarthByte Seminar Series. Sinan Özaydın will be presenting his talk titled “Understanding the compositional nature and architecture of the lithosphere using magnetotellurics.”
The seminar will be held at the following location: Madsen Building Room 449, School of Geosciences, University of Sydney. For those unable to attend in person, the talk will also be streamed live via Zoom. Please register here for Eventbrite Link
Don’t miss this opportunity to expand your knowledge on the magnetotelluric method and its implications for understanding the Earth’s composition and architecture. We look forward to your participation!
Join us on March 29th at 11:00 am AEDT in Madsen Building Room 336, School of Geosciences, University of Sydney, or tune in via Zoom for the next talk in EarthByte Seimar Series to learn about the first-order question in Earth science – how tectonic plate subduction starts.
Professor MikeCoffin will discuss his research on the Macquarie Ridge Complex, which arguably constitutes the global type example for initiating plate subduction.
Don’t miss this opportunity to learn from a leading expert. We look forward to seeing you there
To register for the talk, please visit: https://www.eventbrite.com/e/earthbyte-seminar-series-prof-mike-coffin-tickets-590594633447
Join us for an exciting talk by Luke Daly, a planetary geoscientist at the University of Glasgow, as he takes us on a journey through the geological history of a Martian volcano. Using correlative microscopy, Luke has been able to uncover the complex geological history of a group of Martian meteorites known as the Nakhlites, and has used this information to predict the geomorphology of the landscape around the launch crater.
In this talk, Luke will share his insights into the evolution of Mars and the Solar System as a whole, and how his research is informing remote sensing exploration to finally locate the source of the Nakhlite meteorites on Mars.
The talk will take place on March 15th at 11:00 am AEDT, in Madsen Building Room 331, School of Geosciences, University of Sydney and will be live-streamed via Zoom for those who are unable to attend in person. This is an excellent opportunity to learn from Luke and gain insights into the mysteries of our Solar System.
To register for the talk, please visit https://www.eventbrite.com.au/e/earthbyte-seminar-series-tickets-565834575447?keep_tld=1
We look forward to seeing you there! For more information, see the details below. See you there!
Colombian geologist Sara Polanco uses a computer-game-like river modelling software to understand the processes that make and connect river networks, hopefully providing the tools to help better manage water resources in the future. “That software allows me to simulate how rivers change under different scenarios,” Polanco says, “In a sense, it is like a computer game where … Read more…
EarthByte Seminar Series presents the first talk of this year by Dr. Samuel C Boone from the University of Melbourne, titled “THERMOCHRONOLOGICAL INSIGHTS INTO CONTINENTAL BREAKUP PROCESSES.” The seminar will be held in the Madsen Building Room 449 (Conference Room) from 11 am (AEDT) Wednesday, 18th January. You are also welcome to join us live via Zoom (link: https://uni-sydney.zoom.us/j/86426471159). For more information on the seminar, see below:
This week brings the final EarthByte seminar of the year, featuring Nicole Januszczak of BHP, titled “Exploration at BHP: Putting mineral systems into action.” The seminar will be held in the Madsen Building Room 331 at 11am-12pm this Wednesday 14th December, and will also streamed live via Zoom (link: https://uni-sydney.zoom.us/j/82037433636). For more information on the seminar, see below:
We studied the microstructural and textural modification of columnar calcite naturally deformed at increasing shear strain. The studied marbles were sampled from different structural levels of the Basal Unit of the Cycladic Massif on Evia Island, Greece. The marbles have experienced high pressure metamorphism at peak temperatures around 350 °C. The long axes of the columnar calcite grains and their c-axes were … Read more…
We report on the petrology, microstructure and seismic properties of 44 peridotite xenoliths extracted from the upper mantle beneath Marie Byrd Land (MBL), West Antarctica. The aim of this work is to understand how melt-rock reaction, refertilization, and deformation affected the seismic properties (velocities, anisotropy) of the West Antarctic upper mantle, in the context of … Read more…
Travel through geological time to find copper deposits via our article in the inaugural issue of the Future Mining Magazine. https://future-mining.partica.online/future-mining/vol-1-no-1/flipbook/60/ Plate reconstructions at 1000, 400, 300, 200, 100 million years ago and at present-day. Ancient ocean basins are shown in white with continents in grey, and coloured arrows showing plate speed and direction. Mid-ocean … Read more…
The migration of Homo erectus in Southeast Asia during Early Pleistocene is cardinal to our comprehension of the evolution of the genus Homo. However, the limited consideration of the rapidly changing physical environment, together with controversial datings of hominin bearing sites, make it challenging to secure the robust timeline needed to unveil the behavior of early humans. Here, … Read more…
Relative sea-level changes can dramatically alter coastal geomorphology and coastlines, which, in turn, can fundamentally alter tidal regimes. The Great Barrier Reef (GBR) has undergone around 120 m of relative sea level (RSL) rise since the Last Glacial Maximum, ∼20,000 years ago (ka). Ooid grains (sand sized carbonate sediment) that formed in shallow water (>5 m depth) … Read more…
With the rapid development of deep learning technologies, data-driven methods have become one of the main research focuses in geophysical inversion. Applications of various neural network architectures to the inversion of seismic, electromagnetic, gravity and other types of data confirm the potential of these methods in real-time parameter estimation without dependence on the starting subsurface … Read more…
The Tibetan Plateau plays a central role in global atmospheric circulation, acts as a key biodiversity hotspot, and delivers fresh water for more than 20% of the global population. Projecting its future uplift and erosion trajectory over geological time can offer potential testable hypotheses into interactions between tectonic and surface processes. Rey, P., Salles, T., … Read more…
The Atlantic is the only ocean basin almost entirely surrounded by passive margins, and a major global long-term sink of carbonate carbon that has evaded subduction. Quantifying the history of carbonate accumulation in the Atlantic has been limited by the absence of well-defined regional carbonate compensation depth (CCD) models. We determine the CCD for the … Read more…
The next EarthByte seminar will be held at 11am–12pm on Wednesday 16th November in Madsen Seminar Room 331 at the University of Sydney. This week we will be hearing from Ben Fulcher from the Dynamics and Neural Systems Group within the School of Physics at the University of Sydney, discussing his work on “Quantifying patterns in time series.” As usual, the seminar will be streamed live over Zoom at the following link: https://uni-sydney.zoom.us/j/82037433636.
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AGU Science News: Billion-Year Rewind Tracks Supercontinents and Mantle Structures – EOS has featured our recent paper on tracing past pathways of tectonic plates and their boundaries back a billion years. The article highlights how our work on solid Earth system evolution is driving “a second plate tectonic revolution”., inspiring future work to test and … Read more…
The next installment of the EarthByte seminar series will be held at 11am–12pm next Wednesday 5th October, featuring Nick Mortimer from GNS Science in New Zealand. The seminar will be held in the Madsen Building Rm 449 at the University of Sydney, and streamed live on Zoom at this link: https://uni-sydney.zoom.us/j/82037433636.
Further details on the talk are below:
Several theories have been proposed to explain atoll formation. While karst dissolution during glacial periods and preferential coral reef accretion along raised bank margins during deglaciations and interglacials have been invoked to explain atoll formation, the respective roles of karst dissolution and reef margin construction in atoll formation have not been adequately evaluated by simulations. … Read more…
The next EarthByte seminar will be held simultaneously in the Madsen Building Rm 449 at the University of Sydney and online via Zoom, at the following link: https://uni-sydney.zoom.us/j/82037433636. Further details are below:
Welcome to two new PhD students who have joined the EarthByte Group. Satyam Pratap Singh has joined the Stellar project working on reconstructions of palaeogeography through time and will be jointly supervised by Maria Seton, Sabin Zahirovic and Nicky Wright. Tom New has joined a recently funded ARC Discovery Project on plate-plume interactions and will … Read more…
The Cenozoic landscape evolution in southwestern North America is ascribed to crustal isostasy, dynamic topography, or lithosphere tectonics, but their relative contributions remain controversial. Here we reconstruct landscape history since the late Eocene by investigating the interplay between mantle convection, lithosphere dynamics, climate, and surface pro- cesses using fully coupled four-dimensional numerical models. Our quantified … Read more…
Modern ocean biodiversity, which is at its highest level ever, was achieved through long-term stability of the location of so-called biodiversity hotspots, regions of especially high numbers of species, scientists have found. The findings, published in Nature, were reached through a pioneering model that reconstructs the diversity of marine animals from their origin – some … Read more…
The fossil record of marine invertebrates has long fuelled the debate as to whether or not there are limits to global diversity in the sea. Ecological theory states that, as diversity grows and ecological niches are filled, the strengthening of biological interactions imposes limits on diversity. However, the extent to which biological interactions have constrained … Read more…
Understanding the long-term evolution of Earth’s plate-mantle system is reliant on absolute plate motion models in a mantle reference frame, but such models are both difficult to construct and controversial. We present a tectonic rules-based optimisation approach to construct a plate motion model in a mantle reference frame covering the last billion years and use … Read more…
How can the sluggish, long-wavelength mantle convection be expressed by so many time and space scales of morphotectonic activity? To investigate these relationships, we explore the Java-Banda subduction zone, where geodynamic records cluster. In the far-East Tethys, the exceptionally arcuate Banda subduction zone circumscribes the deepest oceanic basin on Earth, seismotectonic activity slices the upper … Read more…
The lithospheric build-up of the African continent is still to a large extent unexplored. In this contribution, we present a new Moho depth model to discuss the architecture of the three main African cratonic units, which are: West African Craton, Congo Craton, and Kalahari Craton. Our model is based on a two-step gravity inversion approach … Read more…
