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Mr Lawrence Carter

Research Associate

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I am a Research Associate in Exploration Geology on the EU Horizon 2020 GREENPEG project, developing new exploration toolkits for pegmatites in Europe - see https://www.greenpeg.eu/ for more information. I am also a PhD student, nearing completion, assessing the nature and timing of mineralising fluid exsolution and migration in Cu porphyry-forming magmatic systems. I also provide geological consultancy services to the oil & gas and mineral exploration industries.

 

My PhD research uses the archetypal Yerington District, Nevada, USA, as a case study. Due to tectonic tilting, Yerington offers the rare opportunity to study well-exposed sections through porphyry systems up to palaeo-depths of ~8km [1]. This study is amongst the first to determine in detail the depths of fluid exsolution, and therefore the sources of mineralising fluids within the district whilst also assessing the mechanisms by which fluids migrate from depth in sufficient volume and time scale to generate economic porphyry deposits. This study is also reassessing temporal relations in the district through a combined zircon LA-ICP-MS trace element, zircon Lu-Hf isotopic and high precision zircon CA-ID-TIMS U-Pb and molybdenite Re-Os geochronological study. I hope that this approach will inform models for porphyry deposit formation and lead to the development of new exploration tools for blind deposits and as such aid in their discovery.

 

Media Cove‚Äčrage

"An elaborate guide to rock textures: inside a new toolkit for finding copper" - Mine Magazine

"Textures preserved in rock may give an early indication of where porphyry-type copper deposits are located, Researchers from the University of Exeter, UK, reveal" - IOM3, Materials World

"New insights into how to discover porphyry-type copper deposits"- MINING.com

"New toolkit aids discovery of mineral deposits crucial to 'green economy' transistion" - Exeter news article 

"Understanding how porphyry-type copper deposits are formed may lead to new resources – study"  - MINING.com

"Pioneering study gives new insight into formation of copper deposits" - Exeter news article

"Insights into the 'missing link' of how copper ore deposits form" - BGS research highlight

 

Additional Grants Secured

  • UK National Ion Beam Centre 'Pump-Primer' grant. Total Ion Beam Analysis (IBA) study. £6,496. 

  • Society of Economic Geologists (SEG) Student Travel Grant for SEG Santiago 2019. US$1,260.

  • SelFrag Ag. Sample preparation support in kind for CA-ID-TIMS study. 

  • NERC NIGL Isotope Geosciences Facilities. CA-ID-TIMS study. £85,000 in kind.

  • Society of Economic Geologists (SEG) Student Research Grant - Hugh McKinstry Fund. US$4,500.

 

Professional History

  • 2017 - present: LC Geoscience Ltd - Consultant Geologist to the oil & gas and mineral exploration industries.

  • 2017: BP - Operations Geologist, Schiehallion Field. 

  • 2016 - 2017: BP - Wellsite Geologist, North Sea and West of Shetland.

  • 2015 - 2016: BP - Production & Well Planning Geologist, Clair Field.

  • 2015: IMERYS - Geotechnical Engineer, UK Kaolin Platform

  • 2013: BP - Intern Exploration Geologist, Namibian Exploration.

  • 2012: IMERYS - Intern Production Geologist, UK Kaolin Platform.

 

Academic Qualifications

  • MSc Mining Engineering (Distinction), 2015 (Camborne School of Mines). Sponsored by SRK Consulting Ltd. Working with IMERYS, for my dissertation I performed a geotechnical assessment of current excavations and the proposed life of mine excavation design for Melbur Pit, and recommendations therein.

  • BSc (Hons) Applied Geology (1st Class), 2014 (Camborne School of Mines). Working with BP, my dissertation investigated the conjugate margin of the South Atlantic - implications on petroleum systems therein.

 

Honours and Awards

  • SEG best student poster presentation - SEG conference, Santiago, 2019

  • RioTinto best PhD student presentation - MDSG conference, Falmouth, 2019

  • University of Exeter Dean's Commendations; 2013, 2014, 2015 - In recognition of outstanding academic performance.

  • CSMA's John Brook & John Trounson Prizes, 2015 - Awarded for best performance in management modules and best overall performance amongst the MSc cohort.

  • Excellence in Cornwall Postgraduate Scholarship, and further support from SRK Consulting Ltd for my MSc degree.

  • Richard Pearce Gold Medal, 2014 - awarded for best overall performance in cohort.

  • Martyn Nicholas Costello Memorial Prize, 2013 - For best overall academic result (2nd year Geology)

  • Mineralogical Society Student Award, 2013 - Best aggregate mark in mineralogical modules.

  • CSM Trust's Highest Achiever Award, 2012.

  • CSM Undergraduate Scholarship, 2011.

 

Affiliations

  • Camborne School of Mines Association.

  • Member of Society of Economic Geologists (SEG).

  • Member of Society for Geology Applied to Mineral Deposits (SGA). 

  • Member of the Mineral Deposits Study Group.

  • Member of the Mineralogical Society of Great Britain.

 

Publications

Journal Articles

Carter, L. C., Tapster, S. R., Williamson, B. J., Buret, Y., Selby, D., Rollinson, G. K. , Millar, I. & Parvaz, D. B., 2022. A rapid change in magma plumbing taps porphyry copper deposit-forming magmas. Scientific Reports, 12, 17272. https://doi.org/10.1038/s41598-022-20158-y

Carter, L. C. & Williamson, B. J., 2022. Textural indicators of mineralisation potential in porphyry magmatic systems - A framework from the archetypal Yerington district, Nevada. Ore Geology Reviews, 143, 104783. https://doi.org/10.1016/j.oregeorev.2022.104783 

Carter, L. C., Williamson, B. J., Tapster, S. R., Costa, C., Grime, G. W. & Rollinson, G. K., 2021. Crystal mush dykes as conduits for mineralising fluids in the Yerington porphyry copper district, Nevada. Communications Earth & Environment 2, 59. https://doi.org/10.1038/s43247-021-00128-4

 

Conference Presentations

Carter, L. C., Tapster, S., Williamson, B. J., Buret, Y., Selby, D., Millar, I., Rollinson, G. K. & Parvaz, D. 2022. An abrupt switch in magmatic plumbing taps porphyry copper deposit-forming magmas. SEG 2022 Denver, Minerals for our future.

Carter, L. C., Williamson, B. J., Tapster, S. R., Costa, C., Grime, G. W. & Rollinson, G. K., 2021. Crystal mush dykes as conduits for porphyry copper deposit-forming fluids. SEG 100: Celebrating a Century of Discover, Whistler (Online).

Carter, L. C., Tapster, S. R., Williamson, B. J., Buret, Y., Millar, I., Selby, D., & Parvaz, D. B., 2021. Abrupt switch in magmatic plumbing to tap porphyry copper-‘fertile’ magmas. SEG 100: Celebrating a Century of Discover, Whistler (Online).

Carter, L. C., Tapster, S. R., Williamson, B. J., Buret, Y., Selby, D. & Parvaz, D. B., 2021. The 4D Trans-Crustal Architecture of a Porphyry Copper-Forming Magmatic System. Goldschmidt, Lyon (Online). DOI: https://doi.org/10.7185/gold2021.6175

Carter, L. C., Tapster, S. R., Williamson, B. J. & Buret, Y., 2020. The porphyry fertility switch – detail from the Yerington District, Nevada. MDSG annual meeting (Online).

Carter, L. C., Williamson, B. J, Tapster, S. R., Costa, C. & Grime, G. W., 2020. Crystal mush dykes as the source and conduit for porphyry deposit forming fluids. SEG Student Showcase (Online).

Carter, L. C., Williamson, B. J, Tapster, S. R., Costa, C. & Grime, G. W., 2020. Total-IBA Detailing Mineralising Fluid Migration & Exsolution to form Porphyry Copper Deposits. 17th International Conference on Nuclear Microprobe Technology and Applications (ICNMTA) (Online).

Carter, L. C., Williamson, B. J., Armstrong, R. N., Tapster, S. & Buret, Y., 2020. Yerington District, Nevada: New porphyry system petrogeochronology. MDSG annual meeting, NHM, London. 

Carter, L. C., Williamson, B. J., Armstrong, R. N. & Tapster, S., 2020. Exsolution and migration of mineralising fluids in porphyry magmatic systems - Evidence from the Yerington District, Nevada. MDSG annual meeting, NHM, London.

Carter, L. C., Williamson, B. J., Armstrong, R. N. & Tapster, S., 2019. Mineralising fluid exsolution and migration in porphyry systems - New perspectives from the Yerington District, Nevada. SEG 2019 Santiago, South American Metallogeny: Sierra to Craton. [SEG award for best student presentation]

Carter, L. C., Williamson, B. J., Armstrong, R. N. & Tapster, S., 2019. The nature of fluid exsolution and migration in porphyry systems - evidence from the Yerington District, Nevada. Proceedings of the 15th SGA Biennial Meeting, Glasgow, Scotland, pp. 973-976.

Carter, L. C., Williamson, B. J., Armstrong, R. N. & Tapster, S., 2019. New perspectives into the timing and nature of fluid exsolution and migration in Cu porphyry-forming magmatic systems – evidence from the Yerington District, Nevada. Geophysical Research Abstracts, Vol. 21, EGU2019-13169.

Carter, L. C., Williamson, B. J., Armstrong, R. N. & Tapster, S., 2019. Exsolution depth and migration pathways of mineralising fluids in porphyry systems – examples from the Yerington District, Nevada. Applied Earth Science, 128(2), p. 42. DOI: 10.1080/25726838.2019.1601354 [RioTinto award for best PhD student presentation]

 

Invited Talks

Carter, L. C., 2022. The nature and timing of fluid exsolution and migration in porphyry forming magmatic systems. Industrial University of Santander, Colombia – SEG chapter.



 

 

[1] Dilles, J. H., Einaudi, M. T., Proffett, J. and Barton, M. D., 2000. Overview of the Yerington porphyry copper district: Magmatic to non-magmatic sources of hydrothermal fluids, their flow paths, alteration effects on rocks, and Cu-Mo-Fe-Au Ores. SEG guidebook vol. 32.