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TAS

Sixth International Conference on Engineering Geophysics (ICEG)

Monday, October 25, 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.

 

SEG workshop: Geophysics in Geothermal Energy – Today and Tomorrow

Thursday, October 14, 2021
1400
1900

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

SEG workshop: Geophysics in Geothermal Energy – Today and Tomorrow

Wednesday, October 13, 2021
1400
1900

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

SEG workshop: Geophysics in Geothermal Energy – Today and Tomorrow

Tuesday, October 12, 2021
1400
1900

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

Passive Seismic - Applications of Ambient Noise Interferometry for Mineral Exploration

Thursday, August 26, 2021
1800 AEST
1930 AEST

Branch: TAS

Title: Passive Seismic - Applications of Ambient Noise Interferometry for Mineral Exploration

Presenter: Dr Richard Lynch, Sisprobe

Date and Time: Thursday 26 August 2021 at 1800 AEST

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

Abstract:

As mineral exploration seeks deeper targets under cover, the need for low cost and low impact subsurface imaging is increasingly important. A recent addition to the toolbox of geophysical methods is ambient noise surface wave tomography (ANSWT) which produces an S-wave velocity image of the subsurface using naturally occurring seismic signals ("noise") from waves, earthquakes, traffic, etc. - no active controlled seismic sources required. In this presentation, I will provide an introduction to the ANSWT method and show how it is applied for early-stage mineral exploration using some recent projects in Canada, South Africa and Australia.

 

Bio:

Richard Lynch has 20 years experience in the global mining industry focused on all aspects of mine microseismic monitoring. From 2011-2017, he served as CEO of IMS, a leading mine seismology company. Richard is currently the COO and directeur général of Sisprobe, a French company that is the world leader in ambient noise passive seismic imaging and monitoring for industrial applications, including hard rock mineral exploration and real-time TSF monitoring. Richard has a PhD in theoretical physics from Wits University in South Africa. He currently lives in Hobart.

Tasmania Branch dinner

Friday, November 20, 2020
1800
2100

The reason 2020 is a momentous year is of course that it’s the 50th anniversary of the founding of the Australian Society of Exploration Geophysicists.

In celebration, the Tasmania branch invites you to a dinner, to be held Friday 20 November in the Alan Bray Room at the University Club, Dobson Rd, Sandy Bay. Between three delicious courses and drinks, special guest speaker Dr Tara Martin will regale us with "A two-taled geophysical distribution: the inside story behind the building of CSIRO’s Geophysics, Survey and Mapping Group", followed by some of the adventures and misadventures that brought her to its helm.

Please join us for what will undoubtedly be a highlight of 2020.

Date: Friday 20 November 

Time: 6:00pm for 6:30pm start

Venue: Alan Bray Room, University Club, 38A Dobson Road, University of Tasmania, Sandy Bay

Included: 3 course meal and drinks (mains by alternate drop, vegetarian option available, advise of any dietary requirements when booking)

Speaker: Dr Tara Martin, Research Group Leader, CSIRO Hobart

Cost:

  • Members and their partners - $40 each
  • Non-members - $80
  • ASEG Student Members - $20

 

Ensure you RSVP by Monday 16 November via https://tas.currinda.com/register/event/2163.

With any other queries, please contact ASEG Tasmania branch president, mark.duffett@stategrowth.tas.gov.au or 0456 262 803.

We look forward to seeing you!

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.

Tasmania Geoscience Forum

Thursday, December 5, 2019
0900
2200

Seminar Overview

The AusIMM Tasmania Branch, GSA, IAG and Tasmanian Government are pleased to bring you the Geoscience Forum.

The purpose of this forum is to assemble Geoscientists in one pleasant place to share their progress in exploration, mining and research.

This event is for sharing results and ideas in the geosciences and learning more about geology, in particular the geology of Tasmania.

Field Trip Friday, 6 December 2019

A field trip is planned the day after the Forum to visit historic and geological sites of interest in north east Tasmania.

Further details will be available shortly.

Accommodation

Delegates will need to book their own accommodation with the venue (Tidal Waters Resort) or at a venue of their choice.

Expressions of Interest for Guest Speakers

Please contact the Tasmanian Branch if you have any suggestions for speakers.

Sponsorship Opportunities

We welcome sponsors to assist in this event. Display tables will be available at the venue.

Contact the Tasmanian Branch to become a sponsor.

Registration details available here: https://ausimm.com/news/registrations-now-open-tasmania-branch-geoscienc...

TAS - AGS Workshop on InSAR and its Application for Understanding Ground Movement

Wednesday, February 12, 2020
0800
1900

AGS Tasmania Radar Interferometry Workshop

Registrations now open: AGS Workshop on INSAR and its Applications for Understanding Ground Movement

Radar interferometry (InSAR) is a rapidly expanding technique that offers valuable insight into ground deformation for a range of applications, particularly in the field of geotechnics. Due to advancing radar technology and increasing numbers of satellites, the quality and frequency of spaceborne radar coverage available for InSAR is continually improving. An increasing range of radar datasets are becoming freely available, further increasing application potential in geotechnical studies of various scale. However, InSAR is a technically complex technology necessitating appropriate planning, processing, and interpretation. This workshop is aimed at providing end-users and those commissioning imagery a basic understanding of the technique and its limitations in order to improve success and avoid disappointment. Those interested in conducting their own processing using commercially available software require further theoretical and applied background that is beyond the scope of this workshop.

Presenters

Dr. Bernhard Rabus is a Professor in the School of Engineering Science, Simon Fraser University, Canada. He has a geophysics background and is an internationally recognised expert in InSAR technology and processing with numerous academic publications to his credit, plus prior experience in government and industry roles. He teaches graduate and undergraduate courses in synthetic aperture radar applications, including InSAR, and undertakes a range of radar-based research activities.

Dr. Nicholas Roberts is a natural hazards geologist in the Geological Survey Branch of Mineral Resources Tasmania. He has strong interests in landslides and Quaternary geology with a range of academic publications and previous industry and government roles. Nick is also an Adjunct Professor at Simon Fraser University and collaborates with Dr. Rabus as an end-user to apply InSAR to a range of geological applications in diverse settings, including Tasmania.

Registration now open

An expressions of interest process earlier this year indicated strong support for the workshop to the point that the course is theoretically at capacity. Registrations are now open with priority given to those who previously responded if they register within 1 month of this notice being issued. Others are welcome to apply immediately should any spaces be available once the priority period is finished.

Day 1 (12 February) – The basics:

Providing high-level understanding of InSAR and its applications for a range of ground deformation questions through key lecture topics. The session will be held in central Hobart starting at 8:30

Basic introduction to synthetic aperture radar and its differences from remote sensing techniques conventionally used in geotechnical investigations (e.g. aerial photography, optical satellite imagery, LiDAR).

Overview of various InSAR techniques, their processing chains, and their strengths and weaknesses for particular applications.

Case studies of InSAR applications for slope stability and ground subsidence including discussion of specific considerations relevant to particular project types (e.g. pit mine stability, ground subsidence, landslide mapping, urban geohazards).

Merits of outsourcing and in-house processing (e.g. what to ask for when commissioning third party providers; assessing tenders from third party providers; what skill sets and resources are required for in-house processing; what data formats to specify from your provider).

Analysing and integrating InSAR data with other spatial data sets in a GIS environment (interested parties can bring laptops with Google Earth and QGIS installed and do some basic hands-on exercises).

Day 2 (13 February) – One-day field exercise:

Relating features in the field with their representation in InSAR datasets and building on the understanding of InSAR’s utility for addressing geotechnical questions in various environments.

Field sites will include locations for which various radar data and, where possible, InSAR results are available.

Please note that the field exercise will involve short walks over uneven ground to various sites. You are strongly advised to bring warm clothing.

Day 3 (14 February) – Technicalities of InSAR:

Providing greater detail on the processing chain for various InSAR techniques as well as specifics of data selection and access.

This final, lecture-based component of the workshop targets more advanced users including those with interest in conducting their own InSAR processing. Activities and topics will include:

Defining geotechnical problems in a way your InSAR provider will understand.

Selecting suitable imagery and satellites in greater detail.

Processing methods in more detail.

Advanced quality assessment of delivered products.

Registration fees

Standard Member rates*

Day 1 – The basics of InSAR $AUD700

Day 2 – Field Exercise $AUD500

Day 3 – Technicalities of InSAR $AUD500

Note: a $250 loading on the total fee applies to those who are not AGS members

Members of the NZ Geotechnical Society will qualify for AGS member rates

Student discount negotiable on application.

For all questions regarding registration and payments please contact the Secretary. For all technical questions please contact Colin Mazengarb at colin.mazengarb@stategrowth.tas.gov.au

See details at AGS’s website ( https://australiangeomechanics.org/courses/ags-tasmania-radar-interferom...) for registration. 

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