Postdoctoral Fellow in Geophysical Inverse Modelling
I am an enthusiastic, self-motivated researcher. My research interests are very broad research interests, spanning characterisation of subsurface resources to social, environmental and policy implications of resource extraction.
My Ph.D. research focused on developing a methodology for gravity gradiometry interpretation. This includes:
- identification of terrain correction density
- component conversion
- noise characterisation
- applied 3D inversion
- lithology characterization
- resource modeling
As a postdoctoral researcher at the United States Geological Survey, I developed an R package that implemented a Monte Carlo framework for modelling potential outcomes of resource development. This work merged USGS energy resource assessments with social, environmental & other ecosystem services and took a holistic view of earth systems. This holistic view quantified relationships of these three components, resulting in a more complete assessment of multiple natural resources.
Fundamentally, my focus is on research to quantify results, including areas too often viewed through more qualitative lenses. I am highly stimulated by research which can stretch my knowledge and skills base and I enjoy novel approaches and bring my multi-disciplinary background to bear on problems.
- Knowledge in potential field data processing and interpretation
- Field experience in acquisition of various geophysical data types
- Understanding of applied statistical and geostatistical techniques
- Programming abilities in R, Python, Matlab, Java, Fortran, C++
- Capable presenter and organiser
September 2017 – present
Postdoctoral Fellow: CSIRO Deep Earth Imaging Future Science Platform
October 2015 – August 2017
Mendenhall Fellow (Research Geophysicist): Central Energy Resources Centre, U.S. Geological Survey.
June 2015 – September 2015
Student Research Geophysicist: Crustal Geophysics and Geochemistry Science Centre, U.S. Geological Survey.
August 2009 – May 2015
Research Assistant: Centre for Gravity, Electrical and Magnetic Studies, Colorado School of Mines.
PhD (Geophysics, minor in Geology) Colorado School of Mines USA 2015
BS (Geophysics) Colorado School of Mines 2009
Martinez CD (2017). energySim – an R package. U.S. Geological Survey Software Release. https://doi.org/10.5066/f7x34vzf
Martinez CD (2017). Digitized oil and gas pads in the Piceance Basin of Western Colorado in 2015. U.S. Geological Survey Data Release. https://doi.org/10.5066/F7BC3XG3
Martinez CD (2017). Digitized oil and gas pads in the Piceance Basin of Western Colorado in 2005 based on a sample from 2015 data. U.S. Geological Survey Data Release. https://doi.org/10.5066/F76M35RR
Haines SS, Varela BA, Hawkins SJ, Gianoutsos NJ, Thamke JN, Engle MA, Tennyson ME, Schenk CJ, Gaswirth SB, Marra KR, Kinney SA, Mercier TJ, and Martinez, CD (2017). Assessment of water and proppant quantities associated with petroleum production from the Bakken and Three Forks Formations, Williston Basin Province, Montana and North Dakota, 2016. U.S. Geological Survey Fact Sheet 2017–3044, 1–4. https://doi.org/10.3133/fs20173044
Martinez CD, Haines S, Semmens D, Diffendorfer J, Bagstad K, and Garman, S (2016) Quantifying potential future impacts of energy resource development. Abstract GC31B-1125 presented at 2016 Fall Meeting, AGU, San Francisco, Calif., 12-16 Dec.
Martinez CD, Haines S, Semmens D, Diffendorfer J, Bagstad K, and Garman S (2016) Putting everything together: rocks, trees, animals, and stuff to keep the lights on. Abstract GC31B-1125 presented at 2016 Fall Meeting, AGU, San Francisco, Calif., 12-16 Dec.
Martinez C, and Li Y (2016). Denoising of gravity gradient data using an equivalent source technique. Geophysics, 81(4), G67–G79. https://doi.org/10.1190/geo2015-0379.1
Martinez C, and Li, Y (2015). Lithologic characterization using airborne gravity gradient and aeromagnetic data for mineral exploration: A case study in the Quadrilátero Ferrífero, Brazil. Interpretation, 3(2), SL1-SL13. https://doi.org/10.1190/INT-2014-0195.1
Krahenbuhl RA, Martinez CD, Li Y, and Flanagan G (2015). Time-lapse monitoring of CO2 sequestration: A site investigation through integration of reservoir properties, seismic imaging, and borehole and surface gravity data. Geophysics, 80(2), WA15-WA24. https://doi.org/10.1190/geo2014-0198.1
Martinez CD, Wedge D, Li Y, and Holden E-J (2015). Constraining gravity gradient inversion with a source depth volume. In: ASEG Extended Abstracts 2015: 24th International Geophysical Conference and Exhibition (pp. 1–4). https://doi.org/10.1071/ASEG2015ab177
Martinez CD, and Li Y (2014). Quantitative integration of geophysical models in mineral resource assessment. In: SEG Technical Program Expanded Abstract (pp. 1748–1753). https://doi.org/10.1190/segam2014-1378.1
Martinez CD, and Li Y (2014). Potential-field geophysical inverse models for resource exploration and evaluation. Poster presentation at the Society of Economic Geologists Conference Building Exploration Capability for the 21st Century, Keystone, CO.
Martinez CD, Sun J, and Li Y (2013). Geophysical inversion from exploration to resource evaluation. Great Basin and Western Cordillera Mining Geophysics Symposium, B-1.
Martinez, CD, and Li Y (2013). Noise estimation in gravity gradient data after equivalent source processing. In: SEG Technical Program Expanded Abstracts (pp. 1628–1632). https://doi.org/10.1190/segam2013-1355.1
Krahenbuhl RA, Martinez CD, Li Y, and Flanagan G (2013). Integrating reservoir properties and seismic with borehole and surface time-lapse gravity data for monitoring CO2 sequestration: A site investigation. In: SEG Technical Program Expanded Abstracts 2013 (pp. 1136–1140). https://doi.org/10.1190/segam2013-0721.1
Martinez C, Li Y, Krahenbuhl R, and Braga MA (2013). 3D inversion of airborne gravity gradiometry data in mineral exploration: A case study in the Quadrilátero Ferrifero, Brazil. Geophysics, 78(1), B1–B11. https://doi.org/10.1190/geo2012-0106.1
Martinez CD, and Li Y. (2012). Gravity gradiometry processing and interpretation at the Kauring Test Site. In: SEG Technical Program Expanded Abstract (pp. 1–5). https://doi.org/10.1190/segam2012-1342.1
Martinez CD, and Li Y (2012). Understanding gravity gradiometry processing and interpretation through the Kauring test site data. In: ASEG Extended Abstracts 2012: 22nd Geophysical Conference (pp. 1–4). https://doi.org/10.1071/ASEG2012ab238
Martinez CD, Li Y, Krahenbuhl R, and Braga MA (2012). Structurally constrained lithology characterization using magnetic and gravity gradient data over an iron ore formation. In: ASEG Extended Abstracts 2012: 22nd Geophysical Conference (pp. 26–29). https://doi.org/10.1071/ASEG2012ab211
Li Y, Kass MA, Martinez CD, Davis K, and Braga M (2011). Practical issues in the processing and inversion of airborne gravity gradiometry data. In X Li, Y Li and X Meng (Eds.), GEM Beijing 2011: International Workshop on Gravity, Electrical & Magnetic Methods and Their Applications (pp. 1–4). Society of Exploration Geophysicists. https://doi.org/10.1190/1.3659074
Martinez CD, and Li Y (2011). Inversion of regional gravity gradient data over the Vredefort Impact Structure, South Africa. In SEG Technical Program Expanded Abstracts 2011 (pp. 841– 845). https://doi.org/10.1190/1.3628206
Martinez CD, and Li Y (2011). Inversion of gravity gradient data over the Vredefort Impact Structure, South Africa. Abstract GP34A-07 presented at 2011 AGU Fall Meeting, San Francisco, Calif., 5-9 Dec.
Martinez CD, Li Y, Krahenbuhl R, and Braga M (2011). Lithologic characterization using magnetic and gravity gradient data over an iron ore formation. In: SEG Technical Program Expanded Abstracts 2011 (pp. 836–840). https://doi.org/10.1190/1.3628205
Martinez CD, Li Y, Krahenbuhl R, and Braga M (2011). Lithologic characterization using magnetic and gravity gradient data over an iron ore formation in the Quadrilátero Ferrifero, Minas Gerais, Brazil. In: Twelfth International Congress of the Brazilian Geophysical Society (pp. 1148–1153). https://doi.org/10.1190/sbgf2011-236
Martinez CD, Li Y, Krahenbuhl R, and Braga M (2010). 3D Inversion of airborne gravity gradiomentry for iron ore exploration in Brazil. In: SEG Technical Program Expanded Abstracts, 29(1), 1753–1757. https://doi.org/10.1190/1.3513181
Li Y, Kass MA, Davis K, Braga M and Martinez CD (2010). Terrain correction and its effect on 3D inversion of airborne gravity gradiometry data. In: RJL Lane (Ed.), Airborne Gravity 2010 – Abstracts from the ASEG-PESA Airborne Gravity 2010 Workshop: published jointly by Geoscience Australia and the Geological Survey of New South Wales, Geoscience Australia Record 2010/23 and GSNSW File GS2010/0457. http://data.gov.au/dataset/dfb39f23-6f98- 41fe-aef6-5520eab43a3d
Martinez CD, Dean A, Goggin E, Todd BK, and Krahenbuhl RA (2009). Archaeological investigation of the Court Kiva in Chaco Canyon using geophysical methods. In: SEG Technical Program Expanded Abstract (pp. 1449–1453). https://doi.org/10.1190/1.3255122