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HKRG Past Meeting Resources

Resources from past events organised by the Hong Kong Regional Group can be found below. 

If there is an event you would like details for, or questions about any past meeting resources that we can make available, please email us.

Previous Meeting Resources 2013 - 2015 

Earth Science Week: Boat Trip to Yim Tin Tsai and Sharp Island

Date: 14 October 2017

Speakers: Prof. L.S. Chan and Dr. Denise Tang

Sai Kung

The boat trip visited a number of interesting geological stops at Yim Tin Tsai and Sharp Island, Sai Kung.  Outcrops of volcanic breccias, flow banded rhyolites and dykes, pertaining to the boundary of High Island Caldera, on Sharp Island were examined. A newly-identified breccia pipe at Yim Tin Tsai was observed, and its significance regarding local hydrothermal events were discussed.

Special thanks must go to the speakers for their efforts.

Rock Joint Characterisation and Shear Strength

SteveDate: 1 September 2017

Speakers: Prof. Steve Hencher

HKRG warmly welcomes Prof. Steve Hencher, the first chair of HKRG in 2001, to give a presentation on his work in engineering geology. Steve is Emeritus Professor of Engineering Geology at the University of Leeds and Honorary Professor at Hong Kong University.  He spent 15 years working in Hong Kong; five with the Geotechnical Control Office and ten as Head of Geotechnics in Halcrow.



Steve all

Landslide Hazard Mitigation at Mt Umyeon, Seoul

StuartDate: 16 August 2017

Speakers: Stuart Millis

Stuart shared his current work responsibilities about the hazard assessment, mitigation works and design checks subsequently undertaken.


Field Trip to Tung Ping Chau

Date: 15 July 2017

Speakers: Mr. Eric Cheung, Mr. Dennis Wong, Miss Jane Lee, Mr. Jonathon Yan, Miss Didi Mak

Ping Chau

To promote Hong Kong geology towards young generation, a geological field trip to Tung Ping Chau was organized by the Young Fellows Sub-committee of the HKRG GSL for secondary school students. The field trip was successfully held with positive feedbacks from the teachers and students. Special thanks have to be given to the speakers and the Young Fellows Sub-committee members for their efforts and support.

Introductory Course on Core Logging

Date: 8 July 2017

Speakers: Ms. Phoebe Lau & Mr. Kevin So

Core Logging Course

The core logging course was successfully held with positive feedback from everyone. Special thanks must go to the speakers, for their efforts in preparing the lecture. HKRG would like to thank Laurent, Andre, Raymond, Ching, Olivia at Fugro Geotechnical Services (HK) Ltd , and Jonathan at AECOM Asia Company Ltd for their support and contribution.



Presentation (PDF)

U–Pb Zircon Geochronology and Fluid Inclusion Studies in the Cerro Colorado Porphyry Copper Deposit, Northern Chile, Suggest Shallow Syn-Volcanic Mineralisation

debbieDate: 13 June 2017

Speaker: Miss Debbie Tsang

Miss Debbie Tsang shared her recent research in the Cerro Colorado porphyry copper deposit, Chile. We wish her every success in her PhD research.


Shale Gas and Fracking: the Science behind the Controversy

MikeDate: 4 May 2017

Speaker: Prof. Michael Stephenson

In this talk, Mike Stephenson introduced his new book 'Shale gas and fracking: the science behind the controversy' in which he analyses the pros and cons of shale gas from the European and American perspective, debunking the ‘bad science’ being used on both sides of the argument and making clear the science that does matter, so that people can make an informed choice.


Presentation (PDF)

Bill Gaskarth's Visit

Date: 18 to 21 April 2017

Chartership Officer Bill Gaskarth from the Geological Society visited Hong Kong. He gave 2 seminars to the scrutineers and fellows of HKRG. More than 30 young geologists gathered with Bill and the meeting was a great success.




Presentation (PDF)

The Rapid Identification of Weathering in Paleogene Clay Using Near Infrared Spectroscopy

Nick KoorDate: 6 April 2017

Speaker: Dr. Nick Koor

An introduction to visible light/near Infrared light spectroscopy (VIS/NIR) was given followed by a review of the applied geology applications being developed and researched at the University of Portsmouth's Center for Applied Geology. Yet unpublished results of some recent work on the characterisation of a Palaeogene clay was presented. 

Nick all

A gathering with engineering geology & geotechnics students from the University of Portsmouth and geology students from the University of Hong Kong was held after the seminar.

Field Trip to Ap Chau, Kat O, and Harbour Island

Ap ChauDate: 1 April 2017

Speakers: Miss Trudy Kwong and Mr Kevin So

In this field trip, HKRG visited the oldest and the second youngest sedimentary rocks in Hong Kong. Ap Chau and Kat O are islands located at Northeast Hong Kong, and composed of reddish brown breccias of the Kat O Formation. Harbour Island is located at the southern side of the Plover Cove Reservoir, where quartz sandstone of the Bluff Head Formation is exposed. Fragments of placoderm fish fossil of Devonian age were reported at this locality.

Miss Trudy Kwong and Mr. Kevin So explained various geological and geomorphological features during the field study.

Facade Stones in Hong Kong: Geology and Problems

Date: 28 March 2017

Speaker: Prof. LS Chan

​Downtown Hong Kong is absolutely a haven for geologists interested in minerals and rocks, because of the rich varieties of stones that were used as exterior claddings. Much can be learnt from the mineralogy and textures of the cladding stones. 

Prof Chan

For instances, the facade stone in World Wide House is a rapakivi granite showing plagioclase rims surrounding rounded orthoclase megacrysts. The floor panel of Pacific Place is a turbidite from Italy, displaying very interesting sand wave patterns of density currents. The stone outside Senior Common Room in HKU comes from the world-famous ammonite-bearing Rosso Ammonitico formation. 

However, facade stones in Hong Kong sometimes show problems of deformation, spalling, unsightly stains, tenting and efflorescence. The speaker recently undertook several studies on facade stones and will discuss how each type of problems may arise in this presentation.



Presentation (PDF)

Annual Dinner and AGM 2017 

Fellows of the Geological Society celebrated another successful year for the Hong Kong Regional Group on 10 February 2017. The occasion was marked by a dinner at the Hong Kong Football Club, where we were very fortunate to be joined by Mr. Malcolm Brown, the President of the Geological Society. 

Annual Dinner

Special thanks must go to all committee members for their efforts, as well as Malcolm for joining us as an honoured guest and speaker for the evening.

The AGM was well attended and the new committee members were elected:

Chair: Kevin Styles
Secretary: Trudy Kwong
Treasurer: John Perry
Ordinary Committee Members: Eric Cheung, Kan Tam, Michael Tracy, Momo Cheung, Olivia Lam, Sally Lam and Stephen Power.

Technical Visit to Lin Ma Hang Lead-Zinc Mine

Date: 19 November 2016
Speakers: Miss Trudy Kwong and Mr. Matthew Chiu

Lin Ma Hang

The Lin Ma Hang Lead-Zinc Mine is situated at the Northern New Territories near the border of mainland China. The area was within the Frontier Closed Area (FCA) in the past and it required consent from the police for access.The lead-zinc mineralization is a vein-type deposit hosted in volcanic rocks of Tai Mo Shan Formation.
Ore minerals comprise galena (PbS), sphalerite ((Zn,Fe)S), pyrite (FeS2), and chalcopyrite (CuFeS2).

Miss Trudy Kwong and Mr. Matthew Chiu introduced the geology and mining history of the mine.

Junk Trip to Po Toi

Date: 15 October 2016
Speakers: Mr. Kevin So & Ms. Trudy Kwong

Po Toi

Po Toi is located at the southeast of Hong Kong Island. The geology of Po Toi comprises intrusive rocks of various textures, including porphyritic coarse-grained granite (yielded a U-Pb age of c.146 Ma; Sewell et al., 2012), equigranular fine-grained granite of unknown age and numerous quartzphyric rhyolite and mafic dykes. Recent geological field investigations have identified different magmatic features and cross-cutting relationships around the island.

Mr. Kevin So and Miss Trudy Kwong explained various geological and geomorphological features at Po Toi.

Evolution of latte Mesozoic caldera systems in Hong Kong: New perspectives from zircon geochronology and trace element analyses

DeniseDate: 10 August 2016

Speaker: Denise Tang

Spatial and temporal correlation of four late Mesozoic volcanic centres and their sub-volcanic plutons are well-constrained in Hong Kong. Of the four volcanic episodes, the youngest caldera forming eruptions (of c. 140 million years ago) from the High Island Caldera have been interpreted to be of super-eruption scale. Multiple techniques including field studies, zircon geochronology and trace element analyses and low-temperature thermochronology have been employed to gain
new insights into the evolution of these ancient volcanic systems. In this seminar, some latest findings of the magmatic history of Hong Kong and their implications to our understanding of the regional geology will be presented.

Pressurised Tunnel Boring Machines and their Interactions with Weathered Rock

NickSDate: 7 July 2016

Speaker: Nick Shirlaw

Mr. Nick Shirlaw presented his experience and case studies about how slurry and EPB TBMs interact with soil, mixed face and rock conditions, and how this information can be used to improve TBM selection and tunnelling procedures, and reduce the risk of sinkholes.



Presentation (PDF)

Petrogenesis of Malaysian Granitoids in the Southeast Asian Tin Belt

Date: 25 May 2016

Speaker: Dr. Samuel Ng

Dr. Samuel Ng presented his current research related to the Malaysian tin-bearing granite. The seminar was very well-received.



Presentation (PDF)

Technical Visit to Needle Hill Tungsten Mine

Date: 2 April 2016
Speaker: Ms. Trudy Kwong

Technical Visit to Needles_April 2016The Wolframite deposit at Needle Hill was one of the biggest tungsten mines in Hong Kong during the 1950s. Trudy, a mineral geologist, led our fellows to the Needle Hill historical mine site and showed several key places around the hill.

Technical Visit to Needles_April 2016






These included a disused mining office, two dump sites and several abandoned underground adits, of which one of the adits is still easily accessible. Wolframite and Molybdenite on granitic rock fragments were ubiquitous at the dump sites.

City to Desert: Mapping and Exploration in Australia

Date: 10 March 2016
Speaker: Dr. Richard Langford
City to Desert Lecture_Mar16Dr. Langford illustrated a chronology of his experience in the last 20 years after leaving the Hong Kong Geological Survey in 1994.  The  presentation,  with  lots  of  pictures  of  the mapping  and  exploration  environments  he  encountered, has  be  interwoven  with  a  wide  range  of  geological experiences. He showed how technological changes have been adopted over two decades, including GPS, digital mapping, hand-held XRF and remote sensing interpretation.

 City to Desert Lecture_Mar16



Richard also  highlighted his  recently  published  paper  on  Landsat imagery,  and  two  other  projects;  structural  controls  in  the Hamersley Range  iron  province  and  Ti-V  stratigraphy  of  an Archean layered intrusion.


Presentation (PDF)

A re-examination of joint roughness coefficient (JRC)

Date: 23 February 2016
Speaker: Dr. Louis N.Y. Wong
Dr Louis Wong_HKRG_feb16Dr. Louis N. Y. Wong was invited back to deliver a presentation to our Fellows at the University of Hong Kong. Details of his first lecture in 2015 are available further down.

In an attempt to analyze the shear strength of rock joint surfaces, Dr. Wong focused on the JRC-JCS model (Barton criterion). He explained the traditional approaches used by scholars to estimate JRC and noted shortcomings to these methods.

Dr Louis Wong_HKRG_feb16




To get a more representative correlation, he revisited the correlation between JRC and roughness parameters Z2. In the new approach, a correlation which takes into consideration both slope-based and amplitude-based parameters is proposed. The methodology, possible errors in past studies and recommendations were also discussed.


Presentation (PDF)

Technical Visit to Ma On Shan Iron Mine

Date: 4 July 2015
Speakers: Ms. Trudy Kwong & Mr. Jackie Chu

This field trip focused on the magnetite deposit in the Ma On Shan Iron Mine. The deposit is a contact metasomatic replacement skarn developed between granite and calcareous sedimentary rocks, including dolomitic limestone, within a sequence of sandstone siltstone and felsic volcanic rocks.

HK Mining History_23-04-15

Overview of Hong Kong's Mining History

Date: 23 April 2015
Speaker: Jackie Chu

Jackie presented an overview of Hong Kong Mining History in his talk, which included details of the key minerals previous extracted in the territory (e.g. Galena, Wolframite, Magnetite, Beryl, Graphite, Quartz, Feldspar and Kaolin) as well as the locations of the main mine sites at which these were worked. 

HK Mining History_23-04-15



His presentation included numerous impressive graphics and photographs of the mine sites both during their working lifetime as well as their current abandoned condition. This included the historical evidence, such as old maps and local village names, which first gave him an indication of the historical mining activities in these areas.


Event Flyer

Infrared Spectroscopy in Engineering Geology

Date: 31 March 2015 
Speaker: Nick Koor

Evening Seminar 31-03-15Nick presented the findings from recent work being undertaken at the University of Portsmouth on the use of visible/near-infrared (VIS/NIR) spectroscopy for geological applications such as mineral identification and logging, particle size characterisation, moisture content assessment etc.

Evening Seminar 31-03-15






Several case studies from on-going research were presented including studies on the characterisation of landslide deposits and stratigraphic logging of the London Clay in the Isle of Wight. Nick showed how these studies were highlighting the versatility of the scanning equipment and outlined the plans for future research to further develop this emerging tool.



Joint Technical Seminar: Rock slope failure along non-persistent joints – insights from fracture mechanics approach.

Date: 5 March 2015

Joint Technical Seminar - March 2015The HKRG, the Hong Kong Branch of the Institute of Materials, Minerals and Mining (IOM3) and the City University of Hong Kong jointly held an evening seminar on rock slope failure along non-persistent joints, presented by Dr. Louis N. Y. Wong of Nanyang Technological University (NTU) in Singapore.

Rock slope failure is often associated with the sliding of a rock block along a pre-existing discontinuity, where instability is structurally controlled. However, the persistence of key discontinuity sets is typically limited. The failure of rock slopes thus requires a complex interaction (such as coalescence) between non-persistent discontinuities to form a persistent slide plane. Although the Mohr-Coulomb failure criterion with a tensile cut-off can be conveniently applied to model the failure of the intact rock bridge between non-persistent joints, the stress concentration effects around the tips of discontinuities are undesirably ignored.

Joint Technical Seminar - March 2015This talk presented another approach (see attached presentation material) that incorporates a fracture mechanics failure criterion to simulate the nucleation or activation of cracks within the rock matrix and their possible coalescence. The cracking and slope failure behavior of various pre-existing discontinuity configurations obtained numerically was also compared with those observed in experimental studies.





Date: 25 February 2015

The HKRG held its Annual General Meeting on 25 February 2015 to report on activities held over the previous year and elect the committee for the coming 2015/16 Committee Session (see Chair's Report below). This was followed by an evening talk by Kevin Styles of Fugro Hong Kong Limited on “Geologists: Our worth & Are We Worthy”, a copy of which is also uploaded for reference.

By the close of the nomination period for committee membership, a total of 18 names had been put forward meaning that voting was required for the positions of Secretary, Treasurer and Ordinary Committee Membership. The AGM and Evening Talk were extremely well attended with 70 people turning up to vote on the committee members, which by the close of voting on the evening comprised:

Chair: Stuart Millis
Secretary: Fergus Cheng
Treasurer: Raymond Sung
Ordinary Committee Members: Hoi-Yan Ho, Emily Kai, Sarah Kong, Dickson Leung, Andrew Malone, Stephen Power, Iain Ross & Denise Tang

We look forward to this committee maintaining the high levels of activity achieved by the those representing the HKRG in previous years.


Chair's Report 2014-15
AGM Talk by Kevin Styles

Evening Seminar: The Performance of Rock Slopes during the 2010/11 Canterbury Earthquake Sequence

Date: 19 January 2015
Time: 6.30 - 7.30pm
Venue: Lecture Theatre 10 (LT-3), 4/F Academic 1, City University of Hong Kong
Speaker: Dr Chris Massey


The Canterbury earthquake sequence triggered thousands of rockfalls in the Port Hills of Christchurch, New Zealand, with over 6,000 falling on 22 February 2011. Several hundred families were evacuated after about 200 homes were hit. Chris is currently leading a research project to quantify the seismic response of slopes in Christchurch and Wellington, New Zealand. 

Chris's talk highlighted observations, measurements and modelling results to discuss how rock slopes in the Port Hills of Christchurch, New Zealand, performed during the 2010/11 Canterbury earthquake sequence, and how they might perform in the future?.

About the Speaker

Dr. Chris Massey is an Engineering Geologist with over 18 years of research and consultancy experience, primarily in the investigation and analysis of complex geological and geotechnical data for geohazard assessments, slope stability (including landslide monitoring), foundation, underground/surface rock support and groundwater assessments. He has applied these skills to hazard assessments, highway, town planning, pipeline and mining engineering projects in Malawi, Bhutan, Nepal, Ethiopia, Russia (Sakhalin Island), Tajikistan, Hong Kong, Australia, Europe, UK and New Zealand. Recently Chris has lead a project assessing the rockfall and landslide risk to residential homes in the Port Hills of Christchurch, New Zealand, following the 2010/2011 Canterbury earthquake sequence.



Previous Meeting Resources 2013 - 2015