Industry

TAS tech talk - Insights into the 2018 eruption of Kilauea Volcano from ambient seismic noise and the application of seismic noise for imaging and monitoring in mines.

Thursday, February 27, 2020
1730
1900

On Thursday 27 February, Dr Gerrit Olivier will present Insights into the 2018 eruption of Kilauea Volcano from ambient seismic noise and the application of seismic noise for imaging and monitoring in mines.  This is a joint meeting with the Tasmanian branch of the GSA.  As ever, it will be preceded by drinks and nibbles at 5:30 pm in the Earth Science tea room (upstairs from the main entrance), with the main event following at 6 pm in the lecture theatre (back downstairs).  Gerrit’s abstract is also attached.

Gerrit obtained his PhD in Geophysics from the University Grenoble Alpes in France after completing an MSc and BSc in Theoretical Physics at the University of Stellenbosch in South Africa. He is currently a Director and heads up the Applied Geophysics group at the Institute of Mine Seismology – the world’s leading provider of seismic monitoring technologies for mines. He also serves as a Senior Adjunct Researcher at the University of Tasmania and and an Associate Researcher at University Grenoble Alpes in France. He has received awards from the American Geophysical Union and the Institution of Civil Engineers for his research in applying seismic noise interferometry to monitor and image underground mines and tailings dams.

Abstract:

Insights in to the 2018 eruption of Kilauea Volcano from ambient seismic noise and the
application of seismic noise for imaging and monitoring in mines

Ambient seismic noise interferometry is a method that enables seismologists to extract useful
information from faint background seismic noise. The method can be used to image the
subsurface with high resolution and/or monitor time-lapse changes in seismic velocity with
high accuracy in nearly any environment, without the need for active sources or earthquakes.
In this presentation, I will show how applying seismic noise interferometry has helped us
gain valuable insights in to 2018 eruption of Kilauea volcano. The 2018 Kilauea eruption was
a complex event that included deformation and eruption at the summit and along the East Rift
Zone. The eruption lasted three months and emitted around 800 million cubic meters of lava,
destroying more than 700 homes in the process. We used ambient seismic noise
interferometry to measure time-lapse changes in seismic velocity of the volcanic edifice prior
to the eruption. Our results show that 10 days before the eruption, there is a clear change in
the response of the seismic velocities to applied pressure. We also applied ambient seismic
noise tomography to image the state of the volcano after the eruption. The results of this
study will have implications for forecasting volcanic eruptions and our understanding of the
behaviour of volcanoes leading up to major eruptions. Finally, I show how the methods we
applied to Kilauea volcano are currently being used by the Institute of Mine Seismology to
monitor underground mines and tailings dams, while also being used as a cost effective and
environmentally friendly method for mineral exploration.

TAS tech talk - How the Canadian Metal Earth project strives to improve our knowledge of mineralization: an overview of multidisciplinary geophysical methods.

Tuesday, February 25, 2020
1300
1500

Just before he leaves us for the second time, Dr Esmaeil Eshaghi will tell us of How the Canadian Metal Earth project strives to improve our knowledge of mineralization: an overview of multidisciplinary geophysical methods.  Esi’s insider perspective of this huge effort getting underway to improve Canadian discovery rates will be at 1300 on Tuesday 25 February in the CODES conference room (UTas Sandy Bay).  An abstract is attached.  Members are invited to join the speaker and president for lunch at the Uni Staff Club afterwards.  Please RSVP to me or Matt Cracknell (tassecretary@aseg.org.au) if you’d like to come.

As many of you will well remember, Esi was in the airborne geophysics group at the Geological Survey of Iran before completing his PhD in regional potential field modelling at UTas a few years ago and proceeding to a postdoc stint at Laurentian University in Sudbury.  Currently he is with Thomson Aviation as a geophysicist.

Abstract:

How the Canadian Metal Earth project strives to improve our knowledge of mineralization:
an overview of multidisciplinary geophysical methods

Since 2005, there was a marked increase of costs to explore new economical mineral occurrences,
while the success of discovery of new deposits has diminished. Metal Earth, led by the Mineral
Exploration Research Centre at the Harquail School of Earth Sciences, Laurentian University,
Canada, is a seven-year $104 million applied research project with the main goal of improving the
understanding of mineral endowment in Precambrian greenstone belts. An essential part of this
project is to use geological observations and geophysical data to define crust to mantle scale
differences between transects that cross metal endowed and lesser endowed Archean greenstone
belts to define key mechanisms responsible for the genesis of base and precious metal deposits.
For this purpose, high resolution datasets are acquired and combined with existing data to create a
multidisciplinary database containing different geological and geophysical information (e.g.
geological observations, targeted mapping, seismic, gravity, magnetic survey, electromagnetic,
and petrophysics).
In this talk, I preview multidisciplinary geophysical data acquisition, processing and initial models
across different transects, both minerally enriched and less endowed, and provide an overview of
findings so far. It includes a brief discussion of seismic, magnetotelluric and potential field data
(i.e. gravity and magnetic) data and models along some transects as well as petrophysical
characterisations within Abitibi Greenstone Belt. The initial models indicate some distinct
differences between minerally prospective and less-prospective areas at depth. The findings are
promising in terms of identifying new components contributing to mineral deposition.

ASEG WA Tech Night - SEG 2020 Honorary Lecturer Lisa Gavin

Wednesday, February 12, 2020
17:30
19:00

 

 

Please rsvp before 11th February 2020 to attend 2020 1st Tech Nights organised by the ASEG WA branch. The link for registration:

 

https://www.eventbrite.com.au/e/aseg-wa-february-tech-night-2020-tickets-90110126815

 

Direction to the venue: Celtic club

The handout for the event is available here.

SA/NT Tech night: SEG honorary lecture - Regional to reservoir stress-induced seismic azimuthal anisotropy

Tuesday, February 11, 2020
1730
1900

Our first event for 2020 is a technical evening on Tuesday February 11th at the Coopers Alehouse with Dr Lisa Gavin, SEG honorary lecturer. 

Lisa will be presenting on 'Regional to reservoir stress-induced seismic azimuthal anisotropy.'

Lisa works at Woodside Energy in Perth and has great experience in the oil and gas industry. Her interests include seismic anisotropy, quantitative interpretation, 4D seismic, and rock physics. More information and an abstract can be found here.

 

Details: 

Time/Date: 5:30 pm for 6:15 pm start, Tuesday February 11th, 2020

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

Cost: Free for members and students, $10 for non-members, includes nibbles and drinks

AEGC2021

Thursday, April 22, 2021
0800
2000

AEGC2021

Wednesday, April 21, 2021
0800
2000

AEGC2021

Tuesday, April 20, 2021
0800
2000

AEGC2021

Monday, April 19, 2021
0800
2000

Sub 20 - Inaugural Deep Earth Imaging Conference

Wednesday, February 12, 2020
0800
1700

CSIRO’s Deep Earth Imaging Future Science Platform is organising an interdisciplinary subsurface conference around the themes of imaging, conceptualisation and prediction of water, energy and mineral resources. Over two days, we will focus on the science required, developed and deployed by academia, industry and government to prospect today for the resources that will underpin our low energy future. The conference will include a combination of keynotes, panel discussions, presentations and networking opportunities. Particular emphasis will be placed on the next generation of techniques to acquire knowledge about the subsurface; by for example combining machine learning, forward modelling, inverse theory and predictive applications.

Registration now open.

Wednesday 12 - Thursday 13 Feb 2020

Optus Stadium, Perth

333 Victoria Park Dr, Burswood WA

 

 

The Deep Earth Imaging Future Science Platform is holding its inaugural conference that will focus on the scientific advancements required to progress the understanding of the systems behind the formation of water, mineral and energy resources. To unlock challenging-to-recover resources situated at depth requires improving the predictive power of geoscience tools to enable the capture and integration of subsurface, deep earth information for resource modelling. Key to this is to develop knowledge through inference from often incomplete, sparse, indirect and irregularly distributed measurements of the subsurface. The conference will serve as a platform to showcase current developments and to identify challenges and opportunities.

The Three Pillars

Imaging – An ever-increasing volume of geo-data drives the development of novel techniques that are able to produce snapshots of resource systems. Future breakthroughs will be based on advances in sensor networks and computational techniques to extract the maximum amount of information from our observations.

Conceptualisation – Our understanding of mineral, energy and ground water systems only increases when we combine images of the subsurface with geological knowledge. Confidence in predictions will increase if they are underpinned by formal interpretations of images and transparent conceptualisations of geological processes.

Prediction – Robust predictions are the key to de-risking exploration in geological complex settings and managing water and hydrocarbon resources. Improving prediction will require advancing inference capabilities so we can turn images and conceptualisations into insight and understanding.

Program highlights

Sessions dedicated to imaging, conceptualisation and prediction with keynote presentations that identify the challenges and opportunities in these spaces and knowledge development through inference.

Panel discussions by experts in industry, government and academy focused on the roles of imaging, conceptualisation and prediction, and the synergies between these activities.

A stream focused on the relevance and value of imaging, conceptualisation and prediction in the social license to operate context.

An introduction to the current and planned research initiatives by government and academia to aid prospecting for the resources that will underpin a low energy future.

 

Prizes for:

Best presentation by an early career researcher (less than 3 years relevant experience post PhD)

Demonstrated excellence achieved through interdisciplinary research (presentation)

Best poster

 

Why should you attend?

Gain an understanding of the challenges and opportunities shared between imaging, conceptualisation and prediction for energy, mineral and water resources.

Learn about new developments in inversion of geophysical data by academia, industry and government agencies.

Familiarise yourself with CSIRO’s role in the Deep Earth Imaging innovation space.

 

Abstracts

100 to 500 words abstract with a maximum of one figure.

No abstract submission fee.

Please submit your abstract to sub20@csiro.au

The deadline for abstract submission is Tuesday 24th December 2019.

Authors will be contacted and invited to present either a talk or a poster by Friday 10th January 2020.

Download the abstract template (Word, 205KB)

Registration

Opens November 2019.

The first 25 registrations will be covered by CSIRO’s Deep Earth Imaging Future Science Platform.

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