SA

Geophysics in Geothermal Energy – Today and Tomorrow

12–14 October 2021 | Virtual Workshop

ASEG is pleased to announce its collaboration with SEG for the highly anticipated Geophysics in Geothermal Energy – Today and Tomorrow workshop is up on our website. Be a part of this highly-anticipated virtual event that will be taking place from 12–14 October. 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 special discounted price of $US320. In order to benefit from the above rates, they should contact Suba Jaganathan on sjaganathan@seg.org.

Our technical committee has created a special workshop that branches out into specific topics that run parallel to each other, thus attendees can curate and choose the session they would like to view. A recording will also be available within 24 hours for attendees to re-watch any session they have missed, thus providing an enriching and wholesome experience throughout the workshop. We encourage anyone involved in geoscience or geothermal resource exploration to join in on this informative conversation: seismic processers, petrophysicists, rock physicists, geologists, geophysicists, geomechanicists and reservoir engineers.

To view the entire technical programme, please visit our website where you can download it, or watch the video for what you can look forward to during the workshop:

REGISTER NOW

Geophysics in Geothermal Energy – Today and Tomorrow

12–14 October 2021 | Virtual Workshop

ASEG is pleased to announce its collaboration with SEG for the highly anticipated Geophysics in Geothermal Energy – Today and Tomorrow workshop is up on our website. Be a part of this highly-anticipated virtual event that will be taking place from 12–14 October. 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 special discounted price of $US320. In order to benefit from the above rates, they should contact Suba Jaganathan on sjaganathan@seg.org.

Our technical committee has created a special workshop that branches out into specific topics that run parallel to each other, thus attendees can curate and choose the session they would like to view. A recording will also be available within 24 hours for attendees to re-watch any session they have missed, thus providing an enriching and wholesome experience throughout the workshop. We encourage anyone involved in geoscience or geothermal resource exploration to join in on this informative conversation: seismic processers, petrophysicists, rock physicists, geologists, geophysicists, geomechanicists and reservoir engineers.

To view the entire technical programme, please visit our website where you can download it, or watch the video for what you can look forward to during the workshop:

REGISTER NOW

Title: Crustal resistivity of the Mt Gambier subprovince: origins of the Newer Volcanics and implications for exploration in the Western Otway

Presenter: Sam Jennings

Location: Thomas Cooper Room, Coopers Alehouse, 316 Pulteney St, Adelaide

Date: Tuesday 5th October 2021

Time: 5:30 pm for a 6:15 pm start

Cost: Members and students free, non-members $10, includes finger food and drinks

Abstract:

The westernmost Mt Gambier subprovince of southeast Australia's Newer Volcanics Province represent the most recent eruptions of a continental, intraplate volcanic province. Recent magnetotelluric (MT) models in the wider region reveal an extensive conductor beneath Central Victoria as well as a separate, crustally-bound region of low resistivity beneath the Mt Gambier subprovince. To better resolve this western conductor, 49 new broadband MT sites are collected at 25 km spacing and crustal resistivity is modelled using the latest 3D inversion algorithms. An extensive region of low resistivity (<100 Ω m) is revealed and interpreted as the footprint of rising magmatic fluids that cause widespread alteration of Delamerian crust. Spatial alignment of this feature with step-like sub-lithospheric topography lend credence to theories of edge-driven convection and shear-driven upwelling as causal mechanisms for melt generation. A localised zone of even lower resistivity (< 10 Ω m) in the mid-crust beneath the town of Casterton, Victoria is interpreted as small amounts of partial melt. In this presentation, I'll discuss the origins of the NVP, the role of complex basement structures in providing fluid pathways and the implications of a distal melt source for exploration in the Western Otway Basin.

The ASEG, SPE, YPP and PESA invite you to join us for another night of networking, nibbles and drinks at the Havelock Hotel.

Date/Time: Thursday 21st October, 5:30 pm

Location: Havelock Hotel, 162 Hutt St, Adelaide, 5000

Admission includes drinks and nibbles. All welcome!

Purchase your tickets in advance through Eventbrite.

$10 for student members of any of ASEG, SPE or PESA

$20 for members of any of ASEG, SPE or PESA

$35 for non-members

Hope to see you there!

Title: Constraining regional-scale groundwater transport predictions using multiple geophysical techniques

Presenter: Dr Michael Hatch

Location: Thomas Cooper Room, Coopers Alehouse, 316 Pulteney St, Adelaide

Date: Tuesday 27^th July 2021

Time: 5:45 pm for a 6:15 pm start

Cost: Members and students free, non-members $10, includes finger food and drinks

I would like to invite you to our next technical event on Tuesday 27^th July at 5:45 pm for a 6:15 pm start at the Thomas Cooper Room, Coopers Alehouse.

We have Dr Michael Hatch from the University of Adelaide speaking on 'Constraining regional-scale groundwater transport predictions using multiple geophysical techniques'.

Due to often spatially discontinuous and sparse datasets from traditional geohydrological techniques, it is becoming more common to incorporate geophysical data in groundwater models.  Not only are the geophysical data sets more continuous, but they can often be collected non-invasively. A disadvantage is that there may be no consistent/obvious link between the geophysical data and the geohydrological properties that the groundwater model is simulating. It is therefore necessary to derive coupling relationships between the geophysical data and the underlying hydrogeology. This is usually performed in a deterministic manner in which the uncertainty inherent in the geophysical data (as well as in the coupling) is rarely incorporated. In this study we collect a number of geophysical data sets, including audio-frequency magnetotellurics (AMT), time‑domain electromagnetics (TEM) and nuclear magnetic resonance (NMR). These geophysical techniques provide constraints on hydraulic conductivity, water table depth, hydrostratigraphy and porosity. By combining this information with scattered and sparse hydrological measurements, the geophysical data can be coupled with other data in a stochastic groundwater modelling framework. When using geophysical data to provide parameters in groundwater model inversion, it is critical to quantify and account for their uncertainty to avoid incorrectly biasing model outcomes. This study achieves this goal by using an ensemble-smoother modelling method incorporating PESTPP-IES. This approach is illustrated using geophysical and hydrological data from Kapunda, South Australia, to evaluate the potential impact of a simulated In-Situ Recovery (ISR) lixiviant injection test

The ASEG, SPE, PESA and YPP invite you to join us for Adelaide's Fall Fling- a night of drinks, nibbles and conversation on Wednesday 28th April  from 5.30 PM at the Havelock Hotel. Find a flyer attached here.

Admission includes great company, drinks and nibbles. Please purchase your tickets through Eventbrite.

$10 for student members of any of ASEG, SPE or PESA

$20 for members of any of ASEG, SPE or PESA

$35 for non-members

Everybody is welcome, so please feel free to spread the event among your colleagues. 

We are delighted to invite you to this upcoming ASEG SA/NT event.

The year has been a bit quiet in terms of face-to-face events- but we are grateful we can round the year off with a Christmas party and a chance to catch up with colleagues and friends. We will also have a technical talk by Matthew Zengerer, Gondwana Geoscience, ‘Application of Machine Learning to domaining of potential field data and subsurface geology predictions.'

Registration is required- please register through Eventbrite https://www.eventbrite.com.au/e/aseg-sant-christmas-party-and-technical-evening-tickets-132491031241

Tickets are limited- register now!

Details:

Date: Thursday 17^th December, 5:30 pm for 6 pm talk

Where: Union Hotel, 70 Waymouth St, Adelaide, 5000

Cost: ASEG members and students: free, non-members $10 cash at door, includes drinks and nibbles

Members in the NT- we are endeavouring to set up a zoom link for you to join us virtually – we will get this to you shortly!

We would like to take this opportunity to thank our sponsors for 2020, Beach, Oz Minerals, Vintage Energy, Terrex Seismic, Heathgate and Minotaur Exploration.

The ASEG SA/NT Branch is proud to invite you to the 33rd Annual ASEG Melbourne Cup Luncheon.  As always there will be the usual Calcutta Sweep and prizes for best dressed, so dust off the form book and don your finest racing attire for a fantastic day out.

Date: Tuesday 3rd November, 12- 5 pm

Venue: Waymouth Room at The Gallery, 30 Waymouth St, Adelaide.

Cost: $45 students, $70 members and partners, $90 non-members, $500 table of 8 members/guests

Includes: 2 course meal and 4 hour drinks package.

RSVP and payment through Eventbrite here by Friday 30th October or use the following link: https://aseg-33-melbournecup.eventbrite.com

Please notify us of any dietary requirements when booking.

We look forward to seeing as many members as possible there to keep the event going from strength to strength.

Branch hosting the event: SA/NT

Title: Searching for the Beaumont Children and Other Adventures in Unmarked Grave Detection

Presenter: Dr Ian Moffat

Date: Tuesday 2nd June 12:30 pm AEST

Abstract:

The reliable detection of unmarked graves is one of the most important challenges faced by community groups, industry and law enforcement agencies. Burials are ubiquitous in the archaeological and forensic record however these features are challenging to locate with conventional techniques. Geophysical methods are often used for this purpose due to their non-invasive nature and rapid site coverage however graves remain a difficult target due to their subtle response and small size. This presentation reviews a number of grave detection projects, including the search for the Beaumont Children and mapping WWII graves from the Battle of Tarawa, to discuss current best practice in this field.

Bio:

Ian Moffat is an ARC DECRA Senior Research Fellow in Archaeological Science at Flinders University where he undertakes research in the application of earth science techniques in archaeology. He has previously held research positions at the University of Cambridge and the Institute for Mediterranean Studies. Ian holds a PhD from the ANU and a BA and BSc (Hons) from UQ. In addition to his academic career he has worked at Ecophyte Technologies, Precipice Training and Archaeometry Pty Ltd.

I would like to advise you of an update on next week's talk and general meeting. Due to the current circumstances, we will now be holding the short AGM virtually via Zoom, and unfortunately will be postponing Dr. Ian Moffat's talk for now. 

Date: Tuesday, 24 March

Time: 6:00pm

Location: via Zoom videoconference

It would be fantastic to see as many of you as possible on Zoom to round off the previous year, and we will be happy to take any feedback or suggestions for the upcoming year. Instructions for joining the Zoom meeting are below.

Please consider joining the committee if you have ideas for our society - we are always looking for new faces, and I promise you it's a low time commitment. I've attached the nomination form here, and please feel free to contact me if you have any questions about joining.

I look forward to seeing you on Zoom, and apologies for the changes. 

INSTRUCTIONS FOR JOINING ZOOM MEETING

Join online using this link: https://zoom.us/j/993761357

Meeting ID: 993 761 357

If you have not used Zoom before, we recommend joining a few minutes early so you can set up and ensure your video and sound is working properly.