Recent Work  2017-Present


Martyns-Yellowe, K.T., Wach, G.D., Silva, R.I., Brown, D.E., O'Connor, D.E., Kelly, T.B., and Kettanah, Y.A. The Red Head Aeolian Sandstones of the Upper Triassic Fundy Basin, Nova Scotia, Canada. CSPG Reservoir, March/April, 50(2), 2023. 


Kelly, T.B., Wach, G.D., and O'Connor, D.E. The technical challenges and outcomes of ground-penetrating radar: A site-specific example from Joggins, Nova Scotia. AIMS Geosciences, 7(1), 2021.

Fraser, J.A and Wach, G.DPassive margin sedimentation- Low density turbidites of the Meguma Supergroup. Geoconvention 2021, September 13-15, 2021. 

Brown, D.E. and Wach, G.D. Petroleum Exploration on the Scotian Margin. Geoconvention, 2021, September 13-15, 2021. 

Morris, L.E. and Wach, G.D. Petroleum System Elements of Trinidad – Field School Techniques Comprising Sedimentology and Ichnology. Geoconvention 2021, September 13-15, 2021. 

Hargreaves, A.C. and Wach, G.D. Seismic and Lithological Characterization and Source Rock Potential of the Aptian Naskapi Shale Member, Logan Canyon Formation, Offshore Nova Scotia. Geoconvention 2021, September 13-15, 2021. 

Kelly, T. and Wach, G.DEvidence for late Carboniferous episodic marine incursions in eastern Laurasia. Geoconvention 2021, Septmeber 13-15 2021. 

Martyns-Yellowe, K.T., O'Connor, D.E., Silva, R.L., Brown, D.E., Kabiito, J, and Wach, G.DAeolian Sandstones of the Upper Triassic Fundy Basin, Nova Scotia, Canada. Geoconvention 2021, September 13-15, 2021. 

Silva, R.L., Duarte, L.V., Wach, G.D., Ruhl, M., Sadki, D., Gomez, J.J., Hesselbo, S.P., Xu, W., O-Connor, D., Rodrigues, B., and Mendonça Filhoh, J.G. An Early Jurassic (Sinemurian–Toarcian) stratigraphic framework for the occurrence of Organic Matter Preservation Intervals (OMPIs). Earth-Science Reviews, 221. 

Kelly, T.B., Angel, M.N., O'Connor, D.E., Huff, C.C., Morris, L.E., and Wach, G.D. A novel approach to 3D modelling ground-penetrating radar (GPR) data – A case study of a cemetery and applications for criminal investigation. Forensic Science International, 325. DOI:

Martyns-Yellowe, K. and Wach, G. (2021) Crestal faulting: A source trap integrity loss and gas migration in the Migrant Structure, Sable Delta, Offshore Nova Scotia. KAUST Research Conference 2021: Enabling CO2 Geological Storage within a Low-Carbon Economy, February 22-24, 2021. 


Taylor, K., Risk, D., Wach, G., Williams, J., and Sherwood, O. 2020. Occurrence and Origin of Groundwater Methane in the Stellarton Basin, Nova Scotia. Science of the Total Environment (Submitted)

Kelly, T.B., and Wach, G.D. 2020. Analysis of factors influencing the interpretation of a digitally examined fluvial meanderbelt system: Joggins Formation, Nova Scotia. Canadian Journal of Earth Sciences, 57(4): 524-541. DOI:10.1139/cjes-2018-0263

Silva, R.L., Duarte, L. V., Wach, G. D., Morrison, N., and Campbell, T. (2020) Oceanic organic carbon as a possible first-order control on the carbon cycle during the Bathonian–Callovian. Global and Planetary Change 184:103058    DOI: 10.1016/j.gloplacha.2019.103058

Silva, R.L., Wach, G., Hesselbo, S. P., Ruhl, M., and O’Connor, D. (2020) Early Cretaceous coastal dynamics and expression of the oceanic anoxic event 1b cluster in the Isle of Wight (Wessex Basin, United Kingdom). 63rd Irish Geological Research Meeting, Feb 28-March 1, 2020

Silva RL, Wach GD, Hesselbo SP, O’Connor DE. (2020) Total organic carbon and pyrolysis analysis of the Lower Cretaceous in Compton Bay and Atherfield, Isle of Wight (England), Proceedings of the Geologists' Association, volume 131, no. 1, pages 51-59, DOI:10.1016/j.pgeola.2019.11.005

Wach, G. Geothermal Technology in Canada: Future Pathways. Geothermal Technology in Canada Workshop, Waterloo, Canada.  January 23-24, 2020

O’Connor, D., Richards, F. B., Angel, M., and Wach, G. Dynamic Modeling of Buoyant Fluids: Implications for Hydrocarbon Distribution and Potential Carbon Capture and Storage (CCS). KAUST Research Conference 2020: Maturing Geothermal Energy for Saudi Arabia January 27 - 29, 2020

Angel, M. Reducing Future Carbon Emissions: A Scoping Analysis of Carbon Capture and Storage (CCS) Costs and Funding. KAUST Research Conference 2020: Maturing Geothermal Energy for Saudi Arabia January 27 - 29, 2020

Wach, G. Rift and Synrift Sediment Distribution in the Paleozoic and Mesozoic Basins of the Atlantic Canadian Margin- CCUS, CAES and Geothermal Potential. KAUST Research Conference 2020: Maturing Geothermal Energy for Saudi Arabia January 27 - 29, 2020


Ruffell, A.H., Wach, G.D. (In Press) Gamma-ray Log Correlation and Interpretation of Fitton and Casey’s Stratigraphy with Offshore Borehole 99/16-1, Proceedings of Geologists Association

Wach, G., and O’Connor, D. 2019. Outcrop analogues for petroleum system characterization of the Central and North Atlantic margins. British Sedimentological Research Group 58th Annual General Meeting, Royal Holloway, University of London. December 13-17, 2019

O'Connor, D., Richards, B., Angel, M., and Wach, G. 2019. Dynamic Modeling of Buoyant Fluid Flow in Rollover Anticlines, Offshore Nova Scotia, Canada: Implications for Hydrocarbon Distribution, Potential Carbon Capture and Storage (CCS) and Future Activity in the Sable Subbasin. Energy3 Canada's Energy Conference, Halifax, Nova Scotia. October 16-18, 2019.

Angel, M., O’Connor, D., Richards, F.W., and Wach, G. 2019. Cost Scoping Analysis of Future Carbon Capture and Storage (CCS) in the Sable Subbasin. Energy3 Canada's Energy Conference, Halifax, Nova Scotia. October 16-18, 2019.

Angel, M. “A Demonstration of Trapping CO2 in the Deep Subsurface” Science Slam Submission, 2nd Place. Energy3 Canada's Energy Conference, Halifax, Nova Scotia. October 16-18, 2019.

Sêcoa, S.L.R., Silva, R. L., Watson, N., Duarte, L. V., Pereira, Alcides J.S.C. and Wach, G. (2019) Application of petrophysical methods to estimate total organic carbon in Lower Jurassic source rocks from the offshore Lusitanian Basin (Portugal). Journal of Petroleum Science and Engineering 180, 1058-1068  DOI: 10.1016/j.petrol.2019.05.065

Williams, J., Risk, D., Marshall, A., Martell, A., Nickerson, N., Wach, G.D., Creelman, C., and Grace, M. (2019). Methane emissions from abandoned coal and oil and gas wells developments in New Brunswick and Nova Scotia. Environmental Monitoring and Assessment  191(8): 479, DOI: 10.1007/s10661-019-7602-1

Ruffell, A., and Wach, G.D. 2019. Location of the Brecourt (Normandy, France) WW2 Howitzer battery using a geoforensic search strategy. Journal of Conflict Archaeology. 13:3, 154-166, DOI: 10.1080/15740773.2018.1583480



O’Connor, D., Silva, R. L., & Wach, G. (2018). Earliest sedimentological evidence for marine ingressions in the eastern North American rift system, Central Atlantic Margin. Lithosphere (2018) 10 (6): 783–791 DOI: 10.1130/L713.1

Bradley, G-M.,  Redfern, J., Hodgetts, D.,  George, A., and Wach, G. D. (2018) The applicability of modern tidal analogues to pre-vegetation paralic depositional models. Sedimentology (2018) 65, 2171–2201, DOI: 10.1111/sed.12461 


Silva, R. L., Carlisle, C.A.M., and, Wach, G. (2017) A new TOC, Rock-Eval, and carbon isotope record of Lower Jurassic source rocks from the Slyne Basin, offshore Ireland. Marine and Petroleum Geology 86, 499-511, DOI: 10.1016/j.marpetgeo.2017.06.004

Hasley,V., and Wach, G.D. (2017) The detrital record of Cretaceous to Pliocene sandstones across the northeast South American margin. Journal of the Geological Society, 174, 434-452

Di Maggio, R.M., Donnelly, L.J., Al Naimi, K.S., Barone, P.M., Da Silva Salvador, F.A., Dawson, L., Dixon, R., Fitzpatrick, R., Gradusova, O., Nesterina, E., Peleneva, M., Ushacova, O., Gallego, C.M.M., Pirrie, D.l., Ruffell, A., McKinley, J., Sagripanti, G., Villalba, D., Schneck, B., Sugita, R., Wach, G., Silva, R., Forbes, S. (2017) Global developments in forensic geology. Episodes, 40(2), 120- 131. DOI: 10.18814/epiiugs/2017/v40i2/017014