National Executive Committee

National Committee

Sam McColl
President
View More

I work at GNS Science in the Engineering Geology team. My research as a geomorphologist focuses on hillslope and alpine landscape processes, evolution, and hazards.

Catherine Reid
Vice President
View More

I am a palaeontologist in the School of Earth and Environment at the University of Canterbury. My research spans Palaeozoic bryozoans to Quaternary and Recent forams, the later mostly applied to better understand environmental histories and human impacts on harbours and estuaries. I was first a member of the GSNZ as a student and rejoined after returning to New Zealand from overseas. I am re-joining the committee after a break and am looking forward to serving the geosciences community in Aotearoa.

Alan Orpin
Treasurer
View More

I have been a member of the Society since the early 90's as a student and I'm the current Treasurer of the GSNZ, based at NIWA Wellington. My current research is primarily focused on post-glacial marine dispersal and depositional events on continental shelves, slopes and basins. This work includes the application of detailed analysis of sediment cores, event chronology, and paleoseismology, in concert with sedimentary physical properties, high resolution seismic, multibeam bathymetry and backscatter. It embraces a range of environmental drivers for sedimentary processes including climate, tectonics, volcanism, and human-induced land-use change. In addition, my research and commercial activities are ongoing into techniques for seafloor characterization and quantifying sediment dispersal.

Jenny Stein
Secretary
View More

Kia ora, I am a free-lance geologist and science communicator with a diverse background in mineral exploration, teaching, research and presenting scientific information in ways that are accessible and meaningful to non-scientists. I joined the GSNZ National Committee in 2020 and look forward to helping promote geoscience around New Zealand and overseas.

Katherine (Kat) Holt
Immediate Past President
View More

Kia ora, I joined the society in 2004 as a PhD student. I've served on the National Committee since 2009, with a short break from 2017-2019. My research is concentrated on palynology (pollen analysis) with a focus on Quaternary environmental reconstructions. I have a special interest in the Quaternary history of the Chatham Islands, where I carried out my PhD research. I'm really pleased to be able to continue as a National Committee member, and very proud of the work the Society does in supporting the Geoscience community in Aotearoa. 

Hannah Martin
Newsletter Editor
View More

Kia ora, I am starting a PhD at the University of Nevada, Reno in earthquake geology. Originally from Hawkes Bay, New Zealand, I am passionate about understanding seismic hazard in order to reduce risk and promote community resillience. My PhD focuses on understanding why some faults creep and others don't by looking at the geomorphic and mineral controls. I joined GSNZ in 2023 during my Masters research year at the University of Auckland. As the Editor of the Geoscientist Aotearoa, I am excited to share the latest geoscience news and findings to our comminuty. 

AN
Alex Nichols
Publications Sales
View More
Lecturer in petrology at the University of Canterbury. My research focuses on the geochemistry of volcanic rocks, in particular, the role volatiles play in magmatic processes from source to eruption. I use a variety of in-situ micro-analytical techniques (e.g., electron microprobe, laser ablation inductively coupled plasma mass spectrometry, Fourier-transform infrared spectroscopy) to analyse silicate glass and minerals.
MS
Matthew (Matt) Sagar
Publications Convenor
View More

I am a geologist at GNS Science, Lower Hutt. My research mainly involves using geology, petrology and various radiometric dating techniques to understand the geological evolution of the Aotearoa New Zealand continent (Te Riu-a-Māui Zealandia) over the past ~500 million years. As the Publications Convenor I am primarily responsible for facilitating and promoting new GSNZ publications.

Nicki Sayers
Administrator
View More

Nicki has been the GSNZ Administrator since October 2018 and is the first point of contact for all member enquiries.

She supports the executive committee, branches and SIGs, looks after the membership database and website, and compiles and sends the Newsflashes.

In addition to her role with the GSNZ, Nicki works freelance helping charities and schools with fundraising.

Angela Griffin
Member
View More

Angela Griffin is a geologist in the Basin Analysis Team at GNS in Lower Hutt, and has been working at GNS Science since 2007. She holds an MSc in Earth Science and Geography from the University of Waikato. Angela’s professional interests are predominantly centred around borehole image log and wireline log analysis, liquefaction and groundwater studies. Angela is also the project leader of GNS’s carbon emissions reduction plan.

Andrew La Croix
Member
View More
Andrew has been a co-opted member of the GSNZ National Committee since 2020. He is a Lecturer in Sedimentary Geology at the University of Waikato. Andrew is originally from Canada, and arrived in New Zealand in 2019 after living and working in Brisbane as a Postdoctoral Researcher. Andrew is keen about geological field work, as well as science education and communication. In his spare time he likes to swim, hike, and spend time with his family.
Michael Rowe
Member
View More
I have been a resident of New Zealand since 2013 working as a geochemist for the University of Auckland, School of Environment in the Earth Sciences. Although my PhD is in igneous/high-temp geochemistry and petrology, nowadays, my research and supervision really focuses on the whole-Earth system, primarily looking at the space where fluids and minerals overlap. However, my specialty really is in finding new ways to problem-solve with geochemistry, so I have collaborations crossing over into archaeology, engineering, environmental science, and planetary sciences.
Shannen Mills
Member
View More

Kia ora, I'm a PhD student at Massey University. I joined the society in 2017 as an Honor's student and joined the GSNZ National Committee in 2022 as the ECR Representative. My PhD research is looking at Stratovolcano response to edifice collapse using tephra formations from Mt. Taranaki. As the ECR I want to make sure that ECR's have a voice and increase engagement within the society. 

Sophie Briggs
Member
View More
Teaching Fellow, Department of Geology at the University of Otago
Oliver McLeod
Member
View More

Oliver is a mapping geologist with special interests in volcanoes. In 2020, he published the Pirongia Volcano Geological Map through the Geoscience Society of New Zealand. He is currently working on a follow up map of Mt. Karioi (Raglan) to be released in late 2023. 

Michelle Gallagher
Member
View More

Kia ora! I am a Bachelor of science student at the University of Auckland, with an interest in animal behaviour, zoology, paleontology, science communication, and solving tomorrow's problems with what we learn from the past.  I work as a casual zookeeper at Auckland Zoo, with a background in data technology.  As the student rep I hope to ensure our voices are heard and GSNZ is delivering what we need for our development and interests.