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International

ASEG Tech Talk - Selling Planet Earth: Communicating Geoscience for Society

Thursday, March 31, 2022
1800
1900

Title: Selling Planet Earth: Communicating Geoscience for Society

Presenters: A/Prof Heather Handley and Prof Iain Stewart

Date: Thursday 31st March

Time: 6pm AEDT

Registration: https://us02web.zoom.us/webinar/register/WN_2noRTD4zTSmZvnFBpFoVGQ

 

Biographies:

Professor Iain Stewart:

Iain Stewart is the El Hassan bin Talal Research Chair in Sustainability at the Royal Scientific Society (Amman, Jordan), co-Director of the Centre for Climate Change & Sustainability at Ashoka University (India), and Professor of Geoscience Communication at the University of Plymouth. The founding director of the University of Plymouth’s ‘Sustainable Earth Institute’, Iain’s long-standing research interests are in natural hazards, sustainable geoscience, and earth science communication. 

His geo-communication work has built on a 15 year partnership with BBC television presenting geoscience programmes (notably ‘Earth: The Power of the Planet’, ‘Earth: The Climate Wars’, ‘How Earth Made Us’, ‘How To Grow A Planet’, ‘The Rise of the Continents’ and ‘Planet Oil) and recently was academic advisor on Sir David Attenborough’s acclaimed BBCseries ‘Severn Worlds, One Planet’. 

Awarded an MBE for his services to geography and geology education, he is President of the Royal Scottish Geographical Society, and was Communications Lead and Evidence Chair for the Scottish Government’s Climate Citizen’s Assembly. A global champion of Earth science, Iain leads the UNESCO International Geoscience Programme project 685 on Geology and Sustainable Development and holds a UNESCO Chair in Geoscience and Society.

 

Associate Professor Heather Handley:

Heather Handley is a volcanologist and geochemist and has worked on some of the most active volcanoes on the planet. She uses the chemistry of volcanic rocks and their minerals to better understand how volcanoes work and what triggers volcanic eruptions in order to reduce volcanic risk. 

 Heather holds a Bachelor of Science (Honours) in Geology from The University of Edinburgh and a PhD in Volcano Geochemistry from Durham University in the UK. She was awarded an Australian Research Council Future Fellowship in 2012 to advance our understanding of the timescales of Earth-system processes. Heather is an Associate Professor in Volcanic Hazards and Geoscience Communication at the University of Twente and Adjunct Associate Professor at Monash University. She is a member of UNESCO IGCP 685 Project Team and Governing Councillor of the Geological Society of Australia.

 Heather is driven to communicate the critical role of geoscience in our sustainable future. She is Co-Founder and Director of the Earth Futures Festival and part of an international team currently creating an atlas to highlight the many contributions of geoscientists to global sustainability challenges. Heather is a Science and Technology Australia 2021-2022 Superstar of STEM and passionate science communicator. She has led and participated in over 70 geoscience outreach events and workshops. She frequently writes for The Conversation and has given more than 90 television, radio and print interviews on volcanoes. Heather has featured in documentaries for National Geographic and Discovery Science and is currently writing a popular science book on Australia’s volcanoes.

 Heather strongly advocates for Women in STEM, diversity and inclusion and is Co-Founder and Inaugural President of the Women in Earth and Environmental Science Australasia (WOMEESA) Network. Heather received an AIPS NSW Young Tall Poppy Award in 2014 and the Geological Society of Australia’s Beryl Nashar Medal in 2021. Heather is also mum to two very curious young girls. 

 

ASEG FedEx- Talk by Dr Marcus Haynes, Geoscience Australia

Thursday, July 28, 2022
1230 (ACT)
1330 (ACT)

Title: A Bayesian Re-appraisal of Australian Heat Flow: insights on science questions and inverse modelling

Presenter: Dr Marcus Haynes, Geoscience Australia

Date: 28-July-22

Time: 12:30 (ACT)

Registration: https://us02web.zoom.us/webinar/register/WN_hntBrADWS963cOBcMF81ng

Short abstract: Geothermal data offers a unique perspective from which to image the Earth. However, geothermal data is difficult to collect and this has necessitated a reliance on industrial data collection during the exploration for mineral and petroleum resources. Resulting data quality issues have limited previous studies in their ability map the information contained in the data into robust model inferences. In this presentation, I will reflect on aspects of my PhD research where I employed a Bayesian statistical framework to address the above issues, predominantly through the re-appraisal of Australian crustal heat flow data. A novel inverse model will be discussed and used to infer the surface heat flow field across Australia. Alongside insights into Australia’s heat flow field, I will also reflect on my own personal insights into the nature and application of Bayesian inverse methods in geophysics.

Bio:

Dr Marcus Haynes is the module leader for the Lithospheric Geophysics and Economic Fairways projects under Geoscience Australia’s Exploring for the Future program. He holds a Bachelor of Global and Ocean Sciences (Hons) and a PhD in geophysics, both from the Australian National University. He joined Geoscience Australia fifteen years ago, initially as a cadet, and has experience in multidisciplinary geoscience with a focus on geophysical inference and mineral potential assessments.

SAGA 2022

Monday, November 28, 2022
0800
1700

More details to follow. 

ASEG FedEx - talk by Constanza Manassero: Including 3D Magnetotelluric Data into Joint Probabilistic Inversions for Imaging the Deep Earth

Tuesday, September 27, 2022
1600
1700

Date: 27/09/2022

Time: 1600 (Canberra)

Speaker: Constanza Manassero

Title: Including 3D Magnetotelluric Data into Joint Probabilistic Inversions for Imaging the Deep Earth

Registration: https://us02web.zoom.us/webinar/register/WN_h0re9idHQteBaeln9u3-eg

Abstract

Multi-observable inversions are gaining popularity for imaging the structure of the lithosphere (Afonso et al., 2016). Of particular interest is the joint inversion of magnetotelluric (MT) with seismic data as their complementary sensitivity to the thermal structure, hydrogen content and small volumes of fluid or melt offer a powerful means to detect fluid pathways in the lithosphere including the locus of partial melting, ore deposits and hydrated lithologies. This unique potential has given impetus to the acquisition of collocated MT and seismic data over large regions (e.g., AusLAMP/AusArray in Australia).

Probabilistic inversions provide complete information about the unknown parameters and their uncertainties conditioned on the data and modelling assumptions. Joint probabilistic inversions of MT and seismic data have been successfully implemented in the context of 1D MT data only. For the cases of 2D and 3D MT data, however, the large computational cost of the MT forward problem has been the main impediment for pursuing probabilistic inversions. To overcome this limitation, we have presented a novel strategy (Manassero et al., 2020, 2021) that reduces the computational cost of the 3D MT forward solver and allows us to perform full joint probabilistic inversions of MT and other datasets for the 3D imaging of deep thermochemical anomalies and fluid pathways.

In this webinar I will introduce our novel strategy and, as part of the Exploring for the Future program, I will present preliminary results of the first joint probabilistic inversion of 3D MT in southeast Australia using the AusLAMP data and a seismic velocity model derived from teleseismic tomography (Rawlinson et al.,2016). We also make interpretations of our conductivity models using the code MATE (Özaydın and Selway, 2020). These results demonstrate the capabilities of our conceptual and numerical framework for 3D joint probabilistic inversions of MT with other geophysical data sets and open up exciting opportunities for elucidating the Earth’s interior in other regions.

Bio

Dr. Manassero has graduated with a PhD in Geophysics at Macquarie University, Australia, in December 2019. Her project consisted of the development of new methodologies to help study the lithospheric structure and mapping the location of mineral deposits and energy sources within Australia. In particular, she has developed a new methodology for probabilistic inversion of 3D magnetotelluric (MT) data as part of an ARC-funded research program. She is currently working as a Post-doctoral Research fellow at Macquarie University in the same research field as part of an ARC Linkage Grant with UNSW, Geoscience Australia and several Australian Geological Surveys.

 

2022 ASEG AGM

Thursday, April 7, 2022
1730 AEST
2000 AEST

The 2022 AGM of the Australian Society of Exploration Geophysicists (ASEG) will be held on Thursday, 7 April 2022

 

Join Zoom Meeting at: 17:30 AEST, 18:00 ACST & 15:30 AWST.

Face to Face:  XXXX Brewery, Level 1, Cnr Black &, Paten Street, Milton QLD 4064, 5pm arrival for 5.30pm start

In order to participate in the Zoom AGM 2022, please register no later Friday, 1 April 2022. 

Onlinehttps://us02web.zoom.us/meeting/register/tZAtde-gpzsuE9Zyv6QoglSQ5TQqbyAVmnmI

In personhttps://www.eventbrite.com.au/e/aseg-agm-and-talk-role-of-the-oil-and-gas-industry-towards-net-zero-tickets-304470859537

The business of the Annual General Meeting will be:

  • To confirm the minutes of the last preceding general meeting.
  • To receive from the Federal Executive reports on the activities of the Society during the last preceding financial year.
  • To receive and consider the financial accounts and audit reports that are required to be submitted to Members pursuant to the Constitution and to law.
  • To report the ballot results for the election of the new office holders for the Federal Executive.
  • To consider and if agreed approve changes and adopt the ASEG Constitution.
  • To confirm the appointment of financial auditors for 2022.

The AGM will commence with a scientific presentation from Dr. Taku Ide, Head of Carbon at Cleanaway Waste.

Title: The Role of the oil and gas industry towards a net zero future

Reducing, and ultimately reaching net-zero CO2 emissions from fossil fuels are critical to solving the climate challenge. 

Science shows that if we do not achieve net-zero CO2 emissions by 2050, many of the climate events we are witnessing – severe weather events, rising sea levels, ocean acidification and rising temperatures – will continue and likely accelerate, and negatively impact many of the world's key infrastructure, farming practices, and ecosystems that support the modern day economy. Worst impacts will tend to fall on those least responsible for the problem (IPCC 2018) who may not have the means to adapt to the changing world. These implications are motivating companies to reduce their emissions and position their portfolio of goods and services to a 1.5C aligned world. 

There are exciting roles that geophysicists can play in this transition, ranging from developing cost-effective methods to monitor efficacy of carbon capture and storage (CCS), identifying ideal sites for underground hydrogen (H2) storage, reducing uncertainties around rate of sea level rising, and studying other planetary bodies for habitability. 

The talk will share latest findings from climate science that are driving the shift towards decarbonisation, and explore emerging areas where geophysics expertise are critical.

Bio: Dr. Taku Ide holds a BS in Chemical Engineering, and a Masters and Ph.D in Petroleum Engineering, all from Stanford University. Upon graduating, he founded and ran a consulting firm specialised in reducing greenhouse gas emissions and associated risks for global firms, states, and Native American Tribes in the United States. He currently serves as the Head of Carbon at Cleanaway Waste Management to develop its carbon management strategy. 

 

Invitation for candidates for the Federal Executive  

Members of the Federal Executive serve in an honorary capacity. They are all volunteers and ASEG Members are encouraged to consider volunteering for a position on the Executive or on one of its committees. Current members are listed in Preview; please contact one of them if you wish to know more about volunteering for your Society. Self- nominations are encouraged.  

Thank you for your continued support.

Documents:

AAPG - Structural Geology and Our Future - The Role of Tectonic Geoscience in Energy Transition, Focusing on the Asia-Pacific Region

Thursday, July 7, 2022
0800
1900

The AAPG Asia Pacific Region will hold a 2-day Geological Technical Workshop (GTW) in Sydney from 6-7 July 2022.   The theme is Structural Geology and our Future – The Role of Tectonic Geoscience in Energy Transition, Focusing on the Asia-Pacific Region.

The proposed sessions/sub-themes:

  1. Regional tectonic settings - Plate movements within the region; tectonic history; palaeo-tectonic reconstructions
  2. New structural and tectonic techniques: remote sensing; potential fields; digitalisation; data integration; modelling and simulation
  3. Tectonic stresses, faulting and fracture systems, including implications for CO2 sequestration and geothermal/thermodynamic energy
  4. Geomechanics and prediction of trapping configurations
  5. Fold and Thrust Belts in the Asia Pacific Region
  6. Structural controls in base metal, rare Earth, and mineral exploration
  7. Tectonic settings and structural regimes key to Hydrogen and Helium exploration
  8. Impact of tectonics on geohazard assessment and geo-engineering
  9. Structural and fracture understanding for groundwater management

ASEG members are able to register at the AAPG member rate. Additional details can be found here.

AAPG - Structural Geology and Our Future - The Role of Tectonic Geoscience in Energy Transition, Focusing on the Asia-Pacific Region

Wednesday, July 6, 2022
0800
1900

The AAPG Asia Pacific Region will hold a 2-day Geological Technical Workshop (GTW) in Sydney from 6-7 July 2022.   The theme is Structural Geology and our Future – The Role of Tectonic Geoscience in Energy Transition, Focusing on the Asia-Pacific Region.

The proposed sessions/sub-themes:

  1. Regional tectonic settings - Plate movements within the region; tectonic history; palaeo-tectonic reconstructions
  2. New structural and tectonic techniques: remote sensing; potential fields; digitalisation; data integration; modelling and simulation
  3. Tectonic stresses, faulting and fracture systems, including implications for CO2 sequestration and geothermal/thermodynamic energy
  4. Geomechanics and prediction of trapping configurations
  5. Fold and Thrust Belts in the Asia Pacific Region
  6. Structural controls in base metal, rare Earth, and mineral exploration
  7. Tectonic settings and structural regimes key to Hydrogen and Helium exploration
  8. Impact of tectonics on geohazard assessment and geo-engineering
  9. Structural and fracture understanding for groundwater management

ASEG members are able to register at the AAPG member rate. Additional details can be found here.

NSW Tech Talk: New insights into sedimentary processes on the margin of the Great Barrier Reef from the reprocessing of historical seismic reflection data.

Wednesday, November 17, 2021
1800
2000

ASEG NSW Tech Talk

Presenter:James Daniell (Fender Geophysics)

Title: New insights into sedimentary processes on the margin of the Great Barrier Reef from the reprocessing of historical seismic reflection data.

Registration: https://us02web.zoom.us/webinar/register/WN_7aC3mTsMTwK4YogAYam53A

Description

Mixed siliciclastic–carbonate margins receive significant amounts of both terrigenous siliciclastic material from rivers and carbonate material from biogenic sources. The Great Barrier Reef (GBR) is the largest mixed siliciclastic-carbonate margin on earth and detailed stratigraphic analysis is a key tool for understanding the evolution of this sedimentary system; however, the stratigraphy of the offshore central GBR is poorly understood due to its designation as a UNSECO World Heritage Site. This designation limited the acquisition of reflection seismic data over the GBR and has prevented detailed stratigraphic analysis of the reef and its margins. Geoscience Australia conducted limited seismic surveys over the GBR during the 1970-80s though much of this data has remained unprocessed and subsequently unpublished. Key results from this research are:

1. Significant improvements can be made to the seismic reflection data by applying modern processing algorithms.
2. Shelf-edge deltas near Townsville are preserved by their deposition on to an upper slope broad, low gradient terrace which also limits the transport of coarse sediment downslope. Their ‘lobe’ shape indicates a supply dominated environment.
3. Shelf-edge deltas from the Grafton and Flora Passages are clearly incised by submarine canyons that transport sediment downslope. In the Cairns region shelf-edge deltas have a cuspate form and indicate a wave dominated environment.
4. Reef growth is common on the topsets and upper forests of these deltas indicating that these coarse sedimentary environments are favourable for coral colonisation; therefore, as the shelf extends due to lowstand delta deposition, new habitats are also created for coral reefs.
5. The process driving the clear differences between the northern and central GBR is not well understood; however, ongoing subsidence of the central GBR likely plays a significant role.

Sedimentary processes at the margin of the GBR are clearly diverse. Documenting these differences will aid the interpretation of other modern mixed margins and those in the geological record.

Sixth International Conference on Engineering Geophysics (ICEG)

Thursday, October 28, 2021
1130 GMT
1600 GMT

ASEG is pleased to announce its collaboration with SEG for the highly anticipated Sixth International Conference on Engineering Geophysics (ICEG) that will be held from 25 - 28 Oct 2021 Virtual | Cape town South Africa.  This provides us the opportunity to provide all ASEG Members to ATTEND virtually with an interactive an immersive experience and the ability to connect with like-minded individuals from across the globe.

 

ASEG members receive a discounted price of $250 USD by contacting Suba Jaganathan on sjaganathan@seg.org.

ICEG 2021 will concentrate on global innovation, creativity, advances, and new approaches in the field of engineering/environmental geophysics and related fields. In addition to the core engineering/environmental and geotechnical focuses of this coming event, special sessions in related applications of archaeology, energy and forensic geophysics will be included. 

 

To view the entire technical programme, please visit our website where you can download it.

Sixth International Conference on Engineering Geophysics (ICEG)

Wednesday, October 27, 2021
1130 GMT
1600 GMT

ASEG is pleased to announce its collaboration with SEG for the highly anticipated Sixth International Conference on Engineering Geophysics (ICEG) that will be held from 25 - 28 Oct 2021 Virtual | Cape town South Africa.  This provides us the opportunity to provide all ASEG Members to ATTEND virtually with an interactive an immersive experience and the ability to connect with like-minded individuals from across the globe.

 

ASEG members receive a discounted price of $250 USD by contacting Suba Jaganathan on sjaganathan@seg.org.

ICEG 2021 will concentrate on global innovation, creativity, advances, and new approaches in the field of engineering/environmental geophysics and related fields. In addition to the core engineering/environmental and geotechnical focuses of this coming event, special sessions in related applications of archaeology, energy and forensic geophysics will be included. 

 

To view the entire technical programme, please visit our website where you can download it.

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