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ASEG Webinar - SA/NT Branch: Searching for the Beaumont Children and Other Adventures in Unmarked Grave Detection

Tuesday, June 2, 2020
1230 AEST
1330 AEST

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.

 

SA/NT AGM 2020

Tuesday, March 24, 2020
1800
1900

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.

Federal AGM

Tuesday, April 7, 2020
TBC
TBC

Please SAVE THE DATE for the evening of April 7th for the Federal AGM, which this year will be held in Adelaide. This will be in the Balcony Room at the Hotel Richmond, with speaker Prof. Graham Heinson, University of Adelaide as guest speaker. More details to follow.

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

SA - 2019 Industry Sponsors Night

Thursday, November 14, 2019
1730
2000

It is with great pleasure that I invite you to the 2019 Industry Sponsors Night on Thursday 14th November at the Coopers Alehouse. We will have presentations from some of our valued sponsors. This is a fantastic opportunity to hear about some of the projects our sponsors have undertaken over the previous year, and what they might have in store. See the image below for details.

Location: Coopers Alehouse, 316 Pulteney St, Adelaide

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

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

Please also save the date for our annual Honours Night and Christmas Party. The event will be on the evening of Thursday 12th December with more details to follow shortly, but will include talks from geophysics honours students with ample networking and socialising opportunity, and as usual free for Members and students, non-members are $10.

 

I hope to see you at these events, and please feel free to circulate to anyone who may be interested. Please contact me with any questions at sa-ntpresident@aseg.org.au

SA - GeoFamily Xmas in the Park

Sunday, December 8, 2019
1000
1200

GeoFamily Xmas in the Park

 

When: Sunday 8 Dec 2019, 10:00am - 12:00pm

Where: Point Malcolm Reserve

343 Military Road,

Semaphore Park SA 5019

Cost: Free

 

Please bring a plate to share (nut free),

rug, chairs and a drink (for the kids

 

 

The final GeoFamily picnic for 2019 will be at Point Malcolm Reserve with a Xmas party theme! All are welcome, families, friends and guests (no need to be a member, all are welcome!) Don't have kids? Come and enjoy the park and the social networking anyway. GeoFamily picnics are held to promote a healthy work/life balance, professional networking activities, and allow everyone a chance to be involved in our professional organisations. It's also a great way to foster a love of outdoors, adventure and nature play with the next generation of geoscience, engineering and metallurgy students...! We will have a Xmas party and other activities and games so it would be great to see everyone in their Christmas spirit. There is easy parking nearby, mix of activities for young and older kids and lots of grass areas, BBQ spaces and areas for picnics. The park is perfect for summer, with the beach a stones throw away and features:

• Giant Slide

• Big Musical Instruments

• Swings

• Two mini in-ground trampolines

• Two Flying Foxes

Don't forget to bring a hat, sunscreen, kites and beach gear!

Please join us for a fantastic event!

 

SA - Melbourne Cup Luncheon

Tuesday, November 5, 2019
1200
1700

Please come and join us for an afternoon filled with drinks, good food, great people and oh yeah... a horse race! The ASEG SA/NT branch are pleased to announce we are hosting our 32nd Annual Melbourne Cup Luncheon on Tuesday the 5th of November from 12pm to 5pm, generously sponsored by Terrex Seismic and Vintage Energy. As usual, we will be holding our Calcutta sweep and there will of course be prizes for best dressed and plenty of entertainment along the way. We also welcome back to centre stage Neil Gibbons who will once again be our MC for the afternoon.

 

You can get your tickets here! Bookings close EOB 28th October.

 

Cost:

$75pp for ASEG members and partners

$100 for non-members

$50 for students

 

Tickets include a 4-hour drinks package of beer, wine, champagne, cider and soft drink as well as a two-course meal (see flyer for details). 

SA Tech Lunch - Which anomaly should I drill? Using spatial statistics to inform exploration in covered IOCG terranes.

Tuesday, October 8, 2019
1215
1330

Our next upcoming technical event, co-hosted with the Geological Survey of South Australia, is on Tuesday 8th October.

Laszlo Katona will be presenting, ‘Which anomaly should I drill?  Using spatial statistics to inform exploration in covered IOCG terranes.’

Attendance is free and lunch is provided but please RSVP via email for catering purposes.

 

Date/Time: 12:15 pm – 1:30 pm on Tuesday 8th October 2019

Venue: Rm 4.06, Level 4, ANZ building, 11 Waymouth St, Adelaide.

Cost: Free

RSVP: to sa-ntpresident@aseg.org.au or Kate.Robertson2@sa.gov.au. Please include any dietary requirements.

 

Hope to see you there!

SA - Spring Fling

Tuesday, October 22, 2019
1800
0000

Spring is finally here!

 

The ASEG, along with PESA, SPE and YPP, invite you to the annual Spring Fling – Bringing industry professionals and students together for a night of conversations, drinks and nibbles.

 

We will also be taking expressions of interest for the next Mentoring Program.

 

All Welcome: (students, graduates, industry newcomers, industry veterans, etc.)

 

When              Tuesday 22nd October 2019. 6.00pm start

Where            The Havelock Hotel (Balcony – Upstairs), 162 Hutt St, Adelaide

Included         Bar tab and Finger Food

How Much     $10pp

 

Please find a flyer attached here.

RSVP to Lewis.Maxwell@santos.com by 18th October

 

SA/NT Tech Night - A Holistic Subduction/ Metasomatized Lithosphere Model for Orogenic Gold Deposits

Thursday, June 20, 2019
17:30
19:30

The ASEG SA/NT branch will meet on Thursday 20th June at 5:30 pm for a 6:15 pm start. 

We have Emeritus Professor David Groves speaking on, 'A Holistic Subduction/ Metasomatized Lithosphere Model for Orogenic Gold Deposits. '

David was recognised as a National Geoscience Champion by the Australian Geoscience Council in 2018, and we are honoured to have him present to us. 

https://www.agc.org.au/geoscience-in-australia/national-geoscience-champ...

Details:

Date and time: Thursday 20th June, 5:30 pm for 6:15 pm start

Cost: Free for ASEG members and students, $10 for non-members

Venue: Balcony Room, Hotel Richmond, 128 Rundle Mall, Adelaide, 5000

RSVP: Via Eventbrite (RSVP only, payment for non members to be paid in cash at the door)

https://www.eventbrite.com.au/e/national-geoscience-champion-emeritus-pr...

Hope to see you there!

 

Abstract

A holistic model for the origin of orogenic gold deposits and its implications for exploration

The term orogenic gold deposit has been widely accepted for the majority of gold-only lode-gold deposits, but there has been continuing debate on their genesis. Early syn-sedimentary or syn-volcanic models and hydrothermal meteoric-fluid models are now invalid. Magmatic-hydrothermal models, except for rare examples of intrusion-related gold deposits, fail because of the lack of consistent spatially –associated granitic intrusions and inconsistent temporal relationships. The most plausible, and widely-accepted models involve metamorphic fluids, but the source of these fluids continues to be hotly debated. Intra-basin sources within deeper segments of the hosting supracrustal successions, the underlying continental crust, subducted oceanic lithosphere with its overlying sediment wedge, and metasomatized lithosphere are all potential sources. Several features of Precambrian orogenic gold deposits are inconsistent with derivation from a continental metamorphic fluid source. These include the presence of hypozonal deposits in amphibolite-facies domains, the proposed source region of the metamorphic fluids, their anomalous multiple sulfur isotopic compositions, and problems of derivation of gold-related elements from devolatilization of dominant basalts in the sequences. The Phanerozoic deposits are largely described as hosted in greenschist facies domains, consistent with supracrustal devolatilization models. A notable exception are the deposits of the giant Jiaodong gold province of China, where ca 120 Ma gold deposits are hosted in Precambrian crust that was metamorphosed over 2000 million years prior to gold mineralization. Other deposits in China are comparable to those in the Massif Central of France, in that they are hosted in amphibolite-facies domains or clearly post-date regional metamorphic events imposed on hosting supracrustal sequences. If all orogenic gold deposits have a common genesis, the only realistic source of fluid and gold is from devolatilizion of a subducted oceanic slab with its overlying gold-bearing sulfide-rich sedimentary package, or the associated metasomatized mantle wedge, with CO2 released during decarbonation and S and ore-related elements released from transformation of pyrite to pyrrhotite at about 500°C. Although this model satisfies all geological, geochronological, isotopic and geochemical constraints, and is consistent with limited computer-based modelling of fluid release from subduction zones the precise mechanisms of fluid flux, like many other subduction-related processes, are model-driven and remain uncertain.

In terms of exploration significance, the model confirms the ubiquitous distribution in paleo-subduction environments of all geological ages. It stresses the importance of lithosphere-tapping fault and shear zone systems that can tap fluids from the Moho and below. It also de-emphasizes reliance on exploration in greenschist-facies terranes, opening up opportunities in less-explored amphibolite-facies terranes. In fact, some of the more recent orogenic gold discoveries were made in amphibolite terranes in Western Australia (e.g. Tropicana) and Quebec, Canada (e.g. Eleonore).  

 

Bio

David Groves was born in Brighton, England, and migrated to Tasmania where he was educated at Hobart High School and at the University of Tasmania, completing a PhD under the mentorship of Mike Solomon. After a period with the Geological Survey of Tasmania, David was appointed Lecturer in Economic Geology at the University of Western Australia (UWA) in 1972. In 1987, he was awarded a Personal Chair at UWA and formed the Centre for Strategic Mineral Deposits, which morphed into the Centre for Global Metallogeny, with him as Director, and which became the Centre for Exploration Targeting after his retirement as Emeritus Professor. He had a very successful academic career in terms of highly-cited published papers and book chapters, keynote and invited lectures, and mentorship of many outstanding postgraduates, being awarded 12 medals and prizes, including the SEG Silver and Penrose Gold Medals and the SGA-Newmont Gold Medal, and being inducted into the Australian Academy of Sciences as a Fellow. Since his retirement from UWA, David has continued to write papers and mentor staff and students at the China University of Geosciences in Beijing (CUGB), as well as consult to industry, being involved in discovery of two > 1Moz gold deposits during greenfield exploration in Tanzania and Ethiopia.

In 2018, he was made a National Geoscience Champion by the Australian Geoscience Council and recognized as one of the 125 Faces of Geoscience by the Australasian Institute of Mining and Metallurgy. In recent years, David has also published three novels, with “The Plagues’ Protocol” having a “geological detective” as the main left-field thinking character. He has also commenced writing novels for a Chinese audience, the first in press being “Destiny on Magic White Mountain”, again with a strong mineral exploration background. He hopes to help popularize geology through his novels as part of his role as National Geoscience Champion.

 

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