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Dr. Ihsan Al-Aasm


Stable Isotope Geochemistry, Diagenesis, Reservoir Characterization, Low-temperature Geochemistry

School of the Environment
University of Windsor
401 Sunset Avenue
Windsor, Ontario, N9B 3P4, Canada

(519) 253-3000 Ext. 2494
Fax: (519) 973-7081

Room 206 Memorial Hall

Profile photo of Dr Ihsan Al-Aasm


  • B.Sc. University of Baghdad, Iraq, 1974
  • M.Sc. University of Baghdad, Iraq, 1977
  • Ph.D. University of Ottawa, Canada, 1985


  • University of Windsor Research Achievement Award 2006
  • Canadian Society of Petroleum Geologists Medal of Merit 2010


  • Natural Hazards and Disasters
  • Soils and Sediments
  • Environmental Sedimentology
  • Advanced Topics in Sedimentology and Sedimentary Geochemistry

Principal Research Interests

  • Chemical, mineralogical and isotopic studies of diagenesis of carbonate and clastic sediments.
  • Reservoir characterization and porosity evolution.  

Ongoing Research Projects

  • Sedimentologic, chemical and isotopic studies of Devonian and Mississippian reservoir dolomites and associated source rocks of Alberta and B.C.
  • Reservoir characterization and diagenesis of carbonate reservoirs from UAE, Iraq, Eygpt and Iran.

  • Herrero, M.J., Marfil, R., Escavy, J.I., Al-Aasm, I., and Scherer, M. 2020. Diagenetic origin of bipyramidal quartz and hydrothermal aragonites within the Upper Triassic saline succession of the Iberian Basin: implications for interpreting the burial-thermal evolution of the basin. Minerals, 10, 177;
  • Tortola, M., Al-Aasm, I.S., and Crowe, R. 2020. Diagenetic pore fluid evolution and dolomitization of the Silurian and Devonian carbonates, Huron Domain of southwestern Ontario: petrographic, geochemical and fluid inclusion evidence. Minerals, 10, 140,
  • Sutcliffe, C.N., Thibodeay, A.M., Davis, D.W., Al_Aasm, I.S., Parmenter, A., Zajacz, Z., and Jemsen, M. 2019.  Hydrochronology of a proposed nuclear repository in southern Ontario from U-Pb dating of secondary dolomite- Part 2: response to Alleghanian events. CJES, 
  • Morad, S., Al Suwaidi, M.S., Mansurbeg, H., Morad, D., Ceriani, A., Paganoni, M., and Al-Aasm, I. 2019. Diagenesis of a limestone reservoir (Lower Cretaceous), Abu Dhabi, United Arab Emirates: comparison between the anticline crest and flanks. Sedimentary Geology, v. 380, p. 127-142.
  • Kareem, K., Al-Aasm, I.S., and Mansurbeg, H. 2019. Structurally-controlled hydrothermal fluid flow in an extensional tectonic regime: a case study of Cretaceous Qamchuqa Formation, Zagros Basin, Kurdistan Iraq. Sedimentary Geology, v. 386, p. 52-78.
  • Al-Aasm, I.S., Azmy, K. and Steuber, T., 2019.  Introduction to “Advances in low-temperature geochemistry, diagenesis, and seawater and climate evolution through the Earth’s history: a tribute to Jan Veizer”. CJES, v. 56, p. v-vi. 
  • Chen B., Xie, X., Al-Aasm, I.S. and Zhou, M. 2018. Sequence pattern and sedimentary facies of the Jiantianba reef complex: a case study of the structure and composition of organic reefs. Minerals,
  • Al-Aasm, I.S., Mrad, C., and Packard, J.J., 2019. Fluid compartmentalization of Devonian and Mississippian dolostones, Western Canada Sedimentary Basin: petrologic and geochemical evidence from fracture mineralization. CJES, v. 56, p. 265-305. 
  • Ozyurt M., Ziya Kirmach, M., and Al-Aasm, I.S., 2019. Geochemical characteristics of Late Jurassic-Early Cretaceous Berdiga carbonates in Hazine Mağara, Gümüşhane (NE Turkey): Implications for dolomitization and recrystallization. CJES, v. 56, p. 306-320.
  • Ozyurt M., Al-Aasm, I., and Kirmach, M., 2019. Diagenetic evolution of Upper Jurassic-Lower Cretaceous Berdiga Formation, NE Turkey: petrographic and geochemical evidence. In: M. Boughdiri et al. (eds.). Paleobiodiversity and Tectono-Sedimentary Records in the Mediterranean Tethys and Related Eastern Areas, Advances in Science, Technology & Innovation, p. 175-177.
  • Al-Aasm, I.S., and Raymus, S., 2018. Reflux dolomitization and diagenesis of Devonian Upper Stettler and Crossfield, south-central Alberta: petrologic and isotopic evidence. CSPG Bulletin, v. 66, p. 773-802.
  • Mehrabi, H., Rahimpour-Bonab, H., Al-Aasm, I.; Hajikazemi, E. Esrafili-Dizaji, B., Dalvand, M., and Omidvar, M., 2018. Paleo-exposure surfaces in the Aptain Dariyan Formation, offshore SW Iran: geochemistry and reservoir implications. Journal of Petroleum Geology, v. 41, p. 467-494.
  • Al-Aasm, I.S. and Crowe, R., 2018. Fluid compartmentalization and dolomitization in the Cambrian and Ordovician successions of the Huron Domain, Michigan Basin. Marine and Petroleum Geology, v. 92, p. 160-178.
  • Khalifa, M.A., Mansurbeg, H., Morad, D., Morad, S., Al-Aasm, I.S., Spirov, P., Ceriani, A., and De Ros, L, F. 2017. Quartz and Fe-dolomite cements record shifts in formation-water chemistry and hydrocarbon migration in Devonian shoreface sandstones, Ghadanis Basin, Libya. Journal of Sedimentary Research, v. 87, p. 1-20.
  • Hajikazemi, E., Al-Aasm, I.S., and Coniglio, M. 2017. The diagenetic history and reservoir potential of the Mid-Cretaceous Sarvak Formation in southern Iran, Marine and Petroleum Geology, v. 88, p. 845-857.
  • Adam, J., and Al-Aasm I.S., 2017. Petrologic and geochemical attributes of calcite cementation, dolomitization and dolomite recrystallization: an example from the Mississippian Pekisko Formation, west-central Alberta. CSPG Bulletin, v. 65. P. 235-261.
  • Morad, D., Paganoni, M., Al Harthi, A., Morad, S., Ceriani, A., Mansurbeg, H., Al Suwaidi, A., Al-Aasm, I.S., and Ehrenberg, S., 2016. Origin and evolution of microporosity in packstones and grainstones in a Lower Cretaceous carbonate reservoir, United Arab Emirates. Geological Society of London, Spec. Publ., 435.
  • Bajestani, M.S., Mahboubi, A., Al-Aasm, I.S., Moussavi-Harami, R., and Nadjafi, M., 2016. Multistage dolomitization in the Qal’eh Dokhtar Formation (Middle-Upper Jurassic), Central Iran: Petrographic and Geochemical evidence. Geological Journal, DOI: 10.1002/gj.2876
  • Mahboubi, A., Nowrouzi, Z., Al-Aasm, I.S., Moussavi-Harami, R. Mahmudy-Gharaei, MH., 2016. Dolomitization of the Silurian Niur Formation, Tabas Block, east Central Iran: Fluid flow and dolomite evolution.  Marine and Petroleum Geology, v. 77, p. 791-805.
  • Paganoni, M., Al Harethi, A., Morad, D., Morad, S., Ceriani, A., Mansurbeg, H., Al Suwaidi, A., Al-Aasm, I.S., Ehrenberg, S.N., Sirat, M. 2016. Impact of stylolitization on diagenesis of a Lower Cretaceous carbonate reservoir from a giant oilfield, Abu Dhabi, United Arab Emirates. Sedimentary Geology, v.335, p. 70-92.
  • Mansurbeg, H., Morad, D., Othman, R., Morad, S., Ceriani, A., Al-Aasm, I., Kolo, K., Proust, J.N., Preat, A., and Koyi, H., 2016. Hydrothermal dolomitization of the Bekhme Formation (Upper Cretaceous), Zagros Basin, Kurdistan Region of Iraq. Sedimentary Geology, v. 341, p. 147-162. 
  • Sirat, M., Al-Aasm, I.S., Morad, S., Aldahan, A., AlJallad, O., Mansurbeg, H, and Al-Suwaidi, 2016. Saddle dolomite and calcite cements as records of fluid flow during basin evolution: Paleogene carbonates, United Arab Emirates. Marine and Petroleum Geology, v. 74, p. 1-21.
  • Bajestani, S., Mahboubi, A., Moussavi-Harami, R., Al-Aasm, I., and Mahdi, N. 2015. Facies analysis and sequence stratigraphy of Qal’eh Dokhta Formation (Middle-Upper Jurassic) in the west of Boshrouyeh, central Iran. Acta Geologica Sinica,
  • Shabafrooz, R., Mahboubi, A., Vaziri-Moghaddam, H, Moussavi-Harami, R., Ghabeishavi, A., and Al-Aasm, I.S. 2015. Facies analysis and carbonate ramp evolution of Oligo-Miocene Asmari Formation in the Gachsaran and Bibi-Hakimeh oil fields and the nearby Mish anticline, Xagros Basin, Iran: NJB, 276/1, p. 121-146.
  • Fontana, S., Nader, F.H., Morad, S., Ceriani, A, Al-Aasm, I.S., Daniel, J-M, and Mengus, J-M, 2014. Tectonic and diagenetic control on pore fluid evolution: an example from the Permo-Triassic carbonates of U.A.E, Sedimentology, v. 61, p. 660-690
  • Khalifa, M.A., Abu El Ghar, M.S., and Al-Aasm, I.S. 2014. Linking carbonate cyclicity in platforms to depositional and diagenetic overprints: an example from the Lower Eocene Drunka Formation, west of Assiut-Minia stretch, western desert, Egypt: Arabian Journal of Geosciences, v. 7, p. 5159-5170.
  • Azmy, K., Lavoie, D., Wang, Z., Brand, U., Al-Aasm, I.S., Jackson, S. and Girard, I., 2013. Magnesium-isotope and REE compositions of Lower Ordovician carbonates from eastern Laurentia: implication for the origin of dolomites and limestones: Chemical Geology, v. 356, p. 64-75.
  • Haeri-Ardakani, O., Al-Aasm, I.S., Coniglio, M. and Samson, I., 2013. Diagenetic evolution and associated mineralization in Middle Devonian carbonates, southwestern Ontario, Canada: CSPG Bull., v. 61, p. 41–58.
  • Haeri-Ardakani, O., Al-Aasm, I., and Coniglio, M., 2013. Petrologic and geochemical attributes of fracture-related dolomitization in Ordovician carbonates and their spatial distribution in southwestern Ontario, Canada, Marine and Petroleum Geology, v.43, p.409-422.
  • Azomani , E., Azmy  K.A, Blemey, N., Brand, U., and Al-Aasm, I.S., 2013. Dolomitization of the Catoche Formation in Daniel’s Harbour, Northern Peninsula, western Newfoundland: Marine and Petroleum Geology, v. 40, p. 99-114.
  • Haeri-Ardakani, O., Al-Aasm, I.S. and Coniglio, M., 2013. Fracture mineralization and fluid flow evolution: An example from Ordovician-Devonian carbonates, southwestern Ontario, Canada: Geofluids,  v. 13, p. 1-20.
  • Zhao, J.: and Al-Aasm, I.S., 2012. New insights into petroleum migration-accumulation dynamic systems and their division within petroleum systems, Petroleum Geology, v. 23, p. 744-756.
  • Hajikazemi, E., Al-Aasm, I.S., and Coniglio, M., 2012. Chemostratigraphy of the Middle Cretaceous Carbonates in Tethyan region: an example from the Sarvak Formation in southern Iran: Journal of Petroleum Geology, v. 35, p. 187-206.
  • Morad, S., Al-Aasm, I.S., Nader, F.H., Ceriani, A., and Gasparrani, M., 2012. Impact of diagenesis on the spatial and temporal of reservoir quality in C and D Members of the Arab Formation (Jurassic), offshore Abu Dhabi oilfield, GeoArabia, 17(3), 17-56.
  • Goldberg, K., Morad. S., Al-Aasm, I.S., and De Ros, F., 2011. Diagenesis of Palaeozoic playa-lake and ephemeral-stream deposits from the Pimenta Bueno Formation, Siluro-Devonian (?) of the Parecis Basin, central Brazil, Jour. of South American Earth Sciences, 32, 38-74.
  • Morad, S., Al-Aasm, I.S., Sirat, M. and Sattar, M.M., 2010. Vein calcite in Cretaceous carbonate reservoirs of Abu Dhabi: record of origin of fluids and diagenetic conditions, Journal of Geochemical Exploration, 106, 156-170.
  • Hajikazemi, E., Al-Aasm, I.S., and Coniglio, M., 2010. Karst controlled diagenesis: an example from the Middle Cretaceous Sarvak Formation, SW Iran: In: Tectonic and stratigraphic evolution of Zagros and Markran during the Mesozoic-Cenozoic, Geological Society of London, Special Publ, 330, 253-272. Invited.
  • Ghazban, F. and Al-Aasm, I.S., 2010. Hydrocarbon-induced diagenetic dolomite and pyrite formation associated with the Hormoz Island Salt Dome, offshore Iran, Journal of Petroleum Geology, 33, 1-14.
  • Fontana, S., Nader, F.H., Morad, S., Ceriani, A., and Al-Aasm, I.S., 2010. Diagenesis of the Khuff Formation (Permian-Triassic), northern United Arab Emirates, Arabian Journal of Geoscience, DOI: 10.1007/s12517-010-0198-y.
  • Dix, G.R., Sharma, S., Al-Aasm, I.S., Coniglio, M., Linnen, R., Riva, J.F.V. and Achab, A., 2010. Origin of hydrothermal marine dolomite and phosphate in Upper Ordovician platform carbonates of the craton-interior, Timiskaming outlier, Canada, American Journal of Science, 310, 405-423.
  • Wendte, J., Al-Aasm, I.S., Chi, G., and Sergeant, D., 2009. Fault/fracture controlled hydrothermal dolomitization, associated diagenesis and resulting porosity and permeability of the Upper Devonian Jean Marie member (Redknife Formation) in the Julylake area, northeastern British Columbia, CSPG Bulletin, 57, 275-322.
  • Wendte, J., Al-Aasm, I.S., and Sargent, D., 2009. Depositional facies framework, evolution and reservoir architecture of the Upper Devonian Jean Marie Member (Redknife Formation) in the July Lake area of the northeastern British Columbia, CSPG Bulletin, 57.
  • El-ghali, M.A.K., Mansurbeg, H., Morad, S., Ajdanlijisky, G., Oleg, N., and Al-Aasm, I.S., 2009. Distribution of diagenetic alterations in fluvial sandstones within depositional facies and sequence stratigraphic framework: evidence from the Petrohan terrigenous group, Lower Triassic, NW Bulgaria, Marine and Petroleum Geology, 26, 1212-1227.
  • Al-Aasm, I.S., Ghazban, F., and Ranjbaran, M., 2009. Dolomitization and related fluid evolution in the Asmari Formation, Gashsaran area, SW Iran: petrologic and stable isotope evidence, Petroleum Geology, 32, 287-304.
  • Szabo, E., Cioppa, M. and Al-Aasm, I.S., 2009. Pre-Jurassic depositional age for the Lower Amaranth member of the Amaranth Formation, Williston Basin, Manitoba (Canada), Canadian Journal of Earth Sciences, 46, 855-873.
  • Kim, C.B., Al-Aasm, I.S., Ghazban, F., and Chang, H.W., 2009. Stable isotopic composition of dinosaur eggshells and pedogenic carbonates in the Upper Cretaceous Seonso Formation, South Korea: paleoenvironmental and diagenesis implications, Cretaceous Research, 30, 93-99,.
  • Wierzbicki, R., Dravis, J.J., Al-Aasm, I.S. and Harland, N., 2007. Dolomitization and porosity evolution of Upper Jurassic Abenaki platform carbonates, Deep Panuke reservoir, Nova Scotia, Canada: hydrothermal or deep burial diagenetic processes, or both?, AAPG Special Volume.
  • Zade, P.D., and Dharmadhikari, D.M., 2007. Retrieval of Mercury from Wastewater as Stable Metal Ferrite., Water Quality Research Journal of Canada 42, 311-318.
  • Sapota, T., Aldahan, A. and Al-Aasm, I.S., 2007. Sedimentary facies and climate control on formation of vivianite and siderite microconcretions in sediments of Lake Baikal, Siberia, Journal of Paleolimnology, 36(3), 245-257.
  • Ranjbaran, M.; Fayazi, F; and Al-Aasm, I.S., 2007. Sedimentology, depositional environment and sequence stratigraphy of the Asmari Formation (Oligocene- Lower Miocene), Gachsaran area, SW Iran, Carbonates and Evaporites, 22, 135-148.
  • Al-Aasm, I.S. and Vernon, M., 2007. Waulsortian-like mounds of the Mississippian Pekisko Formation, northwestern Alberta: petrographic and chemical attributes, Journal of Marine and Petroleum Geology, 24, 616-631.
  • El-ghali, M., Morad, S., Al-Aasm, I., and Ramseyer, K., 2006. Distributions of diagenetic alterations in glaciogenic sandstones within depositional facies and sequence stratigraphic framework: evidence from Upper Ordovician of the Murzuq Basin, SW Libya: Sedimentary Geology, v. 190, p. 323-351.
  • El-ghali, M., Morad, S., Al-Aasm, I., and Ajdanlijsky, G., 2006. Distribution of diagenetic alterations in fluvial sandstones within depositional facies and sequences stratigraphic framework: evidence from the Petrohan Terrigenous Group, Lower Triassic, NW Bulgaria: Sedimentary Geology, v. 190, p. 299-321.
  • Wierzbicki, R., Dravis, J.J., Al-Aasm, I.S., and Harland, N., 2006, Burial dolomitization and dissolution of Upper Jurassic Abenaki platform carbonates, Deep Panuke reservoir, Nova Scotia, Canada: AAPG Bull., v. 90, p. 1843-1861.
  • Sapota, T., Aldahan, A., and Al-Aasm, I.S. 2006. Sedimentary facies and climate control on formation of vivianite and siderite microconcretions in sediments of Lake Baikal, Siberia: Journal of Paleolimnology, v. 36, p. 254-257
  • Al-Aasm, I.S., and Abdallah, H., 2006. The origin of dolomite associated with salt diapers in central Tunisia: preliminary investigations of field relationships and geochemistry: Journal of Geochemical Exploration, v. 89, p. 5-9.
  • Caja, M.A., Permanyer, A., Marfil, R., Al-Aasm, I.S., and Martin-Crespo, T., 2006. Fluid flow record from fracture-fill calcite in the Eocene limestones from the south-Pyrenean Basin (NE Spain) and its relationship to oil shows: Journal of Geochemical Exploration, v. 89, p. 27-32.
  • Ma, F., Al-Aasm, I.S., and Yang. J., 2006. Numerical modeling of hydrothermal fluid flow coupled with mass transport: an example from the Devonian Wabamun Group, northeast British Columbia, Canada: Journal of Geochemical Exploration, v. 89, p. 247-250.
  • Salem, A.M., Ketzer, J.M., Morad, S., Rizk, R.R. and Al-Aasm, I.S., 2005. Diagenesis and reservoir-quality evolution of incised-valley sandstones: evidence from the Abu-Madi reservoirs (Upper Miocene), the Nile Delta Basin, Egypt: Journal of Sedimentary Research, v. 75, p. 572-584.
  • Marfil, R., Caja, M.A., Tsige, M., Al-Aasm, I.S., Martin-Crespo, T., and Salas, R., 2005. Carbonate-cemented stylolites and fractures in the Upper Jurassic limestones of the Eastern Iberian Range, Spain: A record of paleofluids composition and thermal history: Sedimentary Geology, 178, 237-257.
  • Al-Ramadan, K., Morad, S., Proust, J.N., and Al-Aasm, I., 2005. Distribution of diagenetic alterations in siliciclastic shoreface deposits within a sequence stratigraphic framework: evidence from the Upper Jurassic, Boulonnais, NW France: Journal of Sedimentary Research, v. 75(5), 943-959.
  • Al-Aasm, I.S., and Clarke, J., 2004. The effect of hydrothermal fluid flow on early diagenetic dolomitization: an example from the Devonian Slave Point Formation, NW Alberta, Canada: in: R. Swennen, F. Roure, and J.W. Granath, eds., Deformation, fluid flow, and reservoir appraisal in foreland fold and thrust belts: AAPG Hedberg Series, no. 1, p. 297-316.
  • Cioppa, M.T., Al-Aasm, I.S., Symons, D.T.A., and Gillen, K.P., 2004. Petrology, geochemistry and paleomagnetism of the Devonian “Upper” Member, Wabamun Group, Alberta, Canada: evidence for multiple fluid flow events?: in: R. Swennen, F. Roure, and J.W. Granath, eds., Deformation, fluid flow, and reservoir appraisal in foreland fold and thrust belts: AAPG Hedberg Series, no. 1, p. 331-346.
  • Mohseni, H., and Al-Aasm, I.S., 2004. Tempestite deposits on a storm-influenced carbonate ramp: an example from the Pabdeh Formation (Paleogene), Zagros Basin, SW Iran: Petroleum Geology, v. 27, p. 163-178.
  • Al-Aasm, I.S., 2003, Origin and characterization of hydrothermal dolomite in the Western Canada Sedimentary Basin: Journal of Geochemical Exploration, v. 78-79, p. 9-15.
  • Caja, M.A., Al-Aasm, I.S., Marfil, R., Tsige, M., Martin-Crespo, T,. and Sala, R, 2003. Multiphase carbonate cementation related to fractures in the Upper Jurassic limestones, Maestrat Basin (Iberian Range, Spain): Journal of Geochemical Exploration, v. 78-79, p. 33-39.
  • Cioppa, M.T., Al-Aasm, I.S., Symons, D.T.A. and Gillen, K.P. 2003. Dating penecontemporaneous dolomitization in carbonate reservoirs: paleomagnetic, petrographic, and geochemical constraints: AAPG Bulletin, v. 87, p. 71-88.
  • Ketzer, J.M., Holz, M., Morad, S., and Al-Aasm, 2003. Sequence stratigraphic distribution of diagenetic alterations in coal-bearing, paralic sandstones: evidence from the Rio Bonito Formation (early Permian), southern Brazil: Sedimentology, v. 50, p. 855-878.
  • Wang, B., and Al-Aasm, I.S., 2002. Karst-controlled diagenesis and reservoir development: example from the Ordovician Main-reservoir carbonate rocks on the eastern margin of Ordos Basin, China: AAPG Bulletin, v. 86, p. 1639-1658.
  • Al-Aasm, I.S., Lonnee, J.S. and Clarke, J., 2002. Multiple fluid flow events and the formation of saddle dolomite: case studies from the Middle Devonian of the Western Canada Sedimentary Basin: Marine and Petroleum Geology, v. 19, p. 209-217.
  • Al-Aasm, I.S., Scotchman, I., and Verweij, H., 2002. Preface: Origin, characterization and significance of fluids in sedimentary basins: Marine and Petroleum Geology, v. 19, p. 207-208.
  • Cioppa, M.T., Symons, D.T.A., Al-Aasm, I.S., and Gillen, K.P., 2002. Evaluating the timing of hydrocarbon generation in the Devonian Duvernay Formation: paleomagnetic, rock magnetic and geochemical evidence. Marine and Petroleum Geology, v. 19, p. 275-287.
  • Cioppa, M.T., Lonnee, J.S., Symons, D.T.A., Al-Aasm, I.S. and Gillen, K.P., 2001. Facies and lithologic controls on paleomagnetism: an example from the Rainbow South Field, Alberta, Canada. CSPG Bull.,v. 49, p. 393-407.
  • Packard, J., Al-Aasm, I.S., Samson, I., and Berger, Z., 2001, A Devonian “hydrothermal” chert reservoir: the 225 Bcf Parkland Field, British Columbia, Canada: AAPG, v. 85, p. 51-84.
  • Al-Aasm, I.S., and Packard, J.J., 2000. Stabilization of early-formed dolomite: a tale of divergence from two Mississippian dolomites: Sedimentary Geology, v.131, p. 97-108.
  • Al-Aasm, I.S., 2000. Chemical and Isotopic Constraints for Recrystallization of Sedimentary Dolomites from the Western Canada Sedimentary Basin: Aquatic Geochemistry, v. 6, p. 229-250.
  • Chow, N., Morad, S. and Al-Aasm, I.S., 2000. Origin of authigenic Mn-Fe carbonates and pore-water evolution in marine sediments: evidence from Cenozoic strata of the Arctic Ocean and Norwegian-Greenland Sea (ODP Leg 151): Journal of Sedimentary Research, v. 70, p. 682-699.
  • Cioppa, M.T., Al-Aasm, I.S., Symons, D.T.A., Lewchuk, M.T. and Gillen, K.P., 2000. Correlating paleomagnetic, geochemical and petrographic evidence to date diagenetic and fluid flow events in the Mississippian Turner Valley Formation, Moose Field, Alberta, Canada: Sedimentary Geology, v. 131, p. 109-129.
  • Lewchuk, M.T., Al-Aasm, I.S., Symons, D.T.A. and Gillen, K.P., 2000. Late Laramide dolomite recrystallization of the Husky Rainbow "A" hydrocarbon Devonian Reservoir, northwestern Alberta, Canada: paleomagnetic and geochemical evidence: Canadian Journal of Earth Sciences, v. 37, p. 17-29.
  • Salem, A.M., Morad, S., Mato, L.F. and Al-Aasm, I.S., 2000. Diagenesis and reservoir-quality evolution of sandstones during progressive burial: evidence from the Upper Jurassic Biopeba sandstones, Reconcavo Basin, NE Brazil: AAPG Bull.,v. 84, p. 1015-1040.
  • Cumming, J., and Al-Aasm, I.S., 1999. Sediment characterization and porewater isotope chemistry of Quaternary deposits from the St. Clair Delta, Ontario, Canada: Quaternary Research, v. 51, p. 174-186.
  • Al-Aasm, I.S., Clarke, J.D. and Fryer, B.J, 1998. Stable isotopes and heavy metal distribution in Dreissena polymorpha (zebra mussels) from western basin of Lake Eire, Canada: Environmental Geology, v. 33, p. 122- 129.
  • Spadafora, E., De Ros, L.F., Zuffa, G.G., Morad, S., and Al-Aasm, I.S. 1998. Diagenetic evolution of hybrid and lithic synorogenic arenites (Miocene, northern Apennines, Italy): In Morad S. (ed.) Carbonate cementation in sandstones, Spec. Publ. Inter. Ass. Sediment., 26, p.241-260.
  • Garcia, A.J.V., Morad, S., De Ros, L.F., and Al-Aasm, I.S., 1998. Paleogeographical, paleoclimatic and burial history controls on the diagenetic evolution of reservoir sandstones: evidence from the lower Cretaceous Serraria sandstones in the Sergipe-Alagoas Basin, NE Brazil: In Morad S. (ed.) Carbonate cementation in sandstones, Spec. Publ. Inter. Ass. Sediment., 26, p.107-140.
  • De Ros, L.F., Morad, S., and Al-Aasm, I.S., 1997. Diagenesis of siliciclastic and volcaniclastic sediments (Lower Cretaceous-Miocene) during opening of the North Atlantic: evidence from NW African passive margin (DSDP Leg 47A, Site 397): Sedimentary Geology, v. 112, p. 137-156.
  • Morad, S. and Al-Aasm, I.S., 1997. Authigenesis of rhodochrosite in late Neogene sediments from the eastern equatorial Pacific: evidence for the influence of gas hydrates on porewater del-18O: Sedimentary Geology, v.114, p.295-304.
  • White, T., and Al-Aasm, I.S., 1997.  Hydrothermal dolomitization of the Mississippian upper Debolt Formation, Sikanni gas Field, northeastern British Columbia, Canada. CSPG Bull. v. 45, p. 297-316.
  • Durocher, S. and Al-Aasm, I.S., 1997. Dolomitization and neomorphism of Mississippian upper Debolt Formation, Blueberry Field, NE British Columbia, Canada: Geologic, petrologic and chemical evidence. AAPG Bull. ,v. 81, p.954-977.
  • Al-Aasm, I.S., Morad, S., Durocher, S. and Muir, I., 1996. Sedimentological C-S-Fe, relationships and stable isotopic compositions in Devonian black mudrocks, Mackenzie Mountains, Northwest Territories, Canada. Sedimentary Geology, v. 106, p. 279-298.
  • Morad, S., De Rose, L.F., and Al-Aasm, I.S. 1996. Origin of 16O-enriched, pre-compactional ferroan carbonates in the marine Sto Formation (Middle Jurassic), offshore NW Norway: Marine and Petroleum Geology, v. 13, p. 263-276.
  • Chow, N., Morad, S., and Al-Aasm, I.S., 1996. Origin of authigenic carbonates in Eocene to Quaternary sediments from the Arctic Ocean and Norwegian-Greenland Sea, In: Myhre, T.H., Firth, J.V., Johson, G.L. and Ruddiman, W.F. (Eds.): Proceedings of the Ocean Drilling Program, Scientific Results, v. 151, p. 415-434.
  • Al-Aasm, I.S. and Azmy, K. 1996. Diagenesis and evolution of microporosity of Middle-Upper Devonian Kee Scarp reefs, Norman Wells, N.W.T., Canada: petrologic and chemical evidence. AAPG Bull., v. 80, p. 82-100.
  • Al-Aasm, I.S., Derochers, A., and Coniglio, M., 1995. Formation of complex fibrous calcite veins in Upper Triassic strata of Wrangellia terrain, British Columbia, Canada. Sedimentary Geology, v. 100, p. 83-95.
  • Morad, S. Al-Aasm, I.S., Longstaffe, F.J., Marfil, R., De Ros, L.F. and Johansen, H., 1995. Diagenesis of siliciclastic/evaporite sequence of the Middle Muschelkalk (Middle Triassic), the Catalan coastal range, NE Spain: Sedimentology, v. 42, p. 749-768.
  • Al-Aasm, I.S., and Lu, Fenghu, 1994, Multistage dolomitization of Mississippian Turner Valley Formation, Quirk Creek Field, Alberta: chemical and petrologic evidence: CSPG Memoir 17, p. 657-675.
  • Morad. S., Bin-Ismail, H., De Ros, L.F., Al-Aasm, I.S, and N-S. Serrhini, 1994, Diagenesis and formation water chemistry of Triassic reservoir sandstones from southern Tunisia: Sedimentology, v. 41, p. 1253-1272.
  • Morad, S. and Al-Aasm, I.S., 1994, Conditions of formation and diagenetic evolution of Upper Proterozoic phosphate nodules from southern Sweden: evidence from petrology, mineral chemistry and isotopes: Sedimentary Geology, v. 88, p. 267-282.


Dr. Al-Aasm's stable isotope laboratory is equipped with a Thermo Finnigan Delta Plus mass spectrometer (with a dual inlet system) coupled to a Thermo Finnigan Flash elemental analyzer for continuous-flow capability.  A 10 port manifold is used to measure gas samples prepared off-line using vacuum extraction lines.  The laboratory offers analysis of stable isotopes of 13C/12C, 15N/14N and 18O/16O in a wide array of geologic, hydrologic and biologic materials.

Masters / Ph.D. Opportunities:

I am currently looking for highly motivated Masters students who are interested in low-temperature geochemistry, carbonate diagenesis and dolomitization

Possible topics include:

  • Pore -fluid evolution, dolomitization and relationship to tectonics of Devonian and Mississippian carbonates of Western Canada Sedimentary Basin
  • Reservoir characterization and fracture diagenesis

Financial support typically includes a teaching assistantship (University of Windsor) and a summer stipend (NSERC). Students are also eligible to apply for University of Windsor scholarships.

Kareem, Kareem Ph.D. 2019
Paleofluid flow, fracturing and reservoir implications in foreland basins: an example from the Cretaceous Qamchuqa Formation, Kurdistan Iraq

Tortola, Marco M.Sc. 2019
Petrographic and Geochemical Attributes of Silurian and Devonian Dolomitized Formation in the Huron Domain, Michigan Basin

Mrad, Carole M.Sc. 2016
Fluid Compartmentalization of Devonian and Mississippian Dolostones, Western Canada Sedimentary Basin: Evidence from Fracture Mineralization

Haeri-Ardakani, Omid   Ph.D. 2012
Geochemistry and Origin of Fluids Responsible for Diagenesis and Mineralization in Eastern Michigan Basin, Southwestern Ontario

Hajikazemi, Elham Ph.D. 2010  Co-supervisor
Diagenesis and geochemistry of the Middle Cretaceous Sarvak Formation of Southern Iran

Adam, JoAnn M.Sc. 2006
Petrologic and geochemical attributes of dolomite recrystallization: an example from the Mississippian Pekisko Formation, west-central Alberta

Ma, Fujian M.Sc. 2006  Co-supervisor
Numerical modeling of hydrothermal fluid flow in the Devonian system of the Western Canada Sedimentary Basin: Example from the Wabamun Group, Parkland Field, northeastern British Columbia

Raymus, Samantha M.Sc. 2006
Diagenesis and Dolomitization of the Devonian Upper Stettler and Crosfield, South-Central Alberta: Petrologic and Isotopic Evidence

Amurawaiye, Olugbemi (Mac) M.Sc. 2004
The Origin of Dolomite in the Wabamun Carbonates, Pine Creek Field, West-Central Alberta

Rivas C., Daniel A. M.Sc.  2004
Dolomitization of the Devonian Wabamun Carbonates in the Gold Creek Field, West Central Alberta, Canada

Schwetz, JoAnn M.Sc. 2004 Co-supervisor
Trace metal partitioning and concentration in sediment from the St. Clair and the Detroit River, Ontario, Canada

Elsayed, Sameh M.Sc. 2002 Co-supervisor
Assessment of Heavy Metals Contamination in Lake Erie's Western Basin Sediments

Vernon, Matt M.Sc. 2001
Sedimentology, geochemistry and origin of dolomite in Exshaw formation, Alberta

Gao, Jing M.Sc. 2001
Carbon-Sulphur Systematics and Geochemistry of the Duvernay Formation of Central Alberta

Zhu, Lichun M.Sc. 2000 Co-supervisor
An Isotopic and Fluid Inclusion Study of the Rock Canyon Creek, Fluorite-REE Deposit, Southeastern British Columbia

Theodory, Ronnie George M.Sc. 1999
The Distribution of Stable Isotopes and Heavy Metals in Dreissena Polymorpha (Zebra Mussel) - Chemical Tracers for Environmental Contamination in Lake St. Clair

Lonnee, Jeffrey Scott M.Sc. 1999
Sedimentology, Dolomitization and Diagenetic Fluid Evolution of the Middle Devonian Sulphur Point Formation, Northwestern Alberta

MacFarlane, Bryan M. M.Sc. 1998
The Partitioning and Distribution of Zn, Ni, Cr, and Cu in Western Lake Erie Sediments

Clarke, Julie Dawn M.Sc. 1998
Petrology, Geochemistry and Diagenesis of the Middle Devonian Slave Point Formation, Hamburg Field, Northwestern Alberta

Mohsan, Jamilh Mohammad M.Sc. 1997
Clay Mineralogy, Hydrochemistry and Sedimentological History of the Quaternary Sediments of the St. Clair Delta Area

Cumming, John M.Sc. 1995
Sedimentology and Porewater Isotope Chemistry of Quaternary Deposits from the St. Clair Delta, Walpole Island, Ontario, Canada

White, Todd M.Sc. 1995 
Hydrothermal Dolomitization of the Mississippian Upper Debolt Formation, Sikanni Field, Northeast British Columbia

Durocher, Scott M.Sc. 1994
Sedimentology, Dolomitization and Neomorphism of the Upper Debolt Formation (Mississippian) in the Blueberry Field, Northeastern British Columbia

Lu, Feng-Hu M.Sc. 1993
Sedimentology and Dolomitization in the Upper Mississippian Turner Valley Carbonates, Quirk Creek, Alberta, Canada

Azmy, Karem M.Sc. 1992
Subsurface Diagenetic Evolution and Porosity Evaluation of Middle-Upper Devonian Kee Scarp Reef, Norman Wells, N.W.T., Canada