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Lloyd R. Snowdon

Lloyd R. Snowdon

Lloyd R. Snowdon publication distribution in Earth Science in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Earth Science in 2026. The highlighted bar marks where Lloyd R. Snowdon sits on this spectrum.

38–42 publications: 1 scientists 43–47 publications: 0 scientists 48–52 publications: 3 scientists 53–57 publications: 8 scientists 58–62 publications: 11 scientists 63–67 publications: 16 scientists 68–72 publications: 24 scientists 73–77 publications: 31 scientists 78–82 publications: 49 scientists 83–87 publications: 77 scientists 88–92 publications: 86 scientists 93–97 publications: 88 scientists 98–102 publications: 92 scientists 103–107 publications: 84 scientists 108–112 publications: 102 scientists 113–117 publications: 108 scientists 118–122 publications: 117 scientists 123–127 publications: 126 scientists 128–132 publications: 146 scientists 133–137 publications: 114 scientists 138–142 publications: 102 scientists 143–147 publications: 127 scientists 148–152 publications: 102 scientists 153–157 publications: 112 scientists 158–162 publications: 102 scientists 163–167 publications: 127 scientists 168–172 publications: 121 scientists 173–177 publications: 112 scientists 178–182 publications: 109 scientists 183–187 publications: 98 scientists 188–192 publications: 92 scientists 193–197 publications: 105 scientists 198–202 publications: 77 scientists 203–207 publications: 80 scientists 208–212 publications: 89 scientists 213–217 publications: 70 scientists 218–222 publications: 74 scientists 223–227 publications: 74 scientists 228–232 publications: 70 scientists 233–237 publications: 67 scientists 238–242 publications: 59 scientists 243–247 publications: 67 scientists 248–252 publications: 51 scientists 253–257 publications: 46 scientists 258–262 publications: 41 scientists 263–267 publications: 39 scientists 268–272 publications: 34 scientists 273–277 publications: 39 scientists 278–282 publications: 35 scientists 283–287 publications: 36 scientists 288–292 publications: 35 scientists 293–297 publications: 29 scientists 298–302 publications: 23 scientists 303–307 publications: 39 scientists 308–312 publications: 34 scientists 313–317 publications: 23 scientists 318–322 publications: 18 scientists 323–327 publications: 18 scientists 328–332 publications: 21 scientists 333–337 publications: 20 scientists 338–342 publications: 15 scientists 343–347 publications: 13 scientists 348–352 publications: 24 scientists 353–357 publications: 25 scientists 358–362 publications: 10 scientists 363–367 publications: 20 scientists 368–372 publications: 17 scientists 373–377 publications: 18 scientists 378–382 publications: 15 scientists 383–387 publications: 7 scientists 388–392 publications: 22 scientists 393–397 publications: 9 scientists 398–402 publications: 11 scientists 403–407 publications: 16 scientists 408–412 publications: 4 scientists 413–417 publications: 5 scientists 418–422 publications: 14 scientists 423–427 publications: 8 scientists 428–432 publications: 7 scientists 433–437 publications: 7 scientists 438–442 publications: 10 scientists 443–447 publications: 10 scientists 448–452 publications: 3 scientists 453–457 publications: 9 scientists 458–462 publications: 11 scientists 463–467 publications: 4 scientists 468–472 publications: 6 scientists 473–477 publications: 11 scientists 478–482 publications: 8 scientists 483–487 publications: 2 scientists 488–492 publications: 3 scientists 493–497 publications: 4 scientists 498–502 publications: 4 scientists 503–507 publications: 4 scientists 508–509 publications: 4 scientists 510+ publications: 100 scientists
38 publications 510+

The last bar groups every scientist with 510 publications or more.

Lloyd R. Snowdon D-index placement in Earth Science in 2026

The chart shows the D-index (discipline H-index) distribution of Earth Science scientists ranked by Research.com in 2026. The highlighted bar marks where Lloyd R. Snowdon sits on this spectrum.

30 D-Index: 15 scientists 31 D-Index: 42 scientists 32 D-Index: 60 scientists 33 D-Index: 90 scientists 34 D-Index: 103 scientists 35 D-Index: 108 scientists 36 D-Index: 142 scientists 37 D-Index: 147 scientists 38 D-Index: 147 scientists 39 D-Index: 152 scientists 40 D-Index: 143 scientists 41 D-Index: 157 scientists 42 D-Index: 141 scientists 43 D-Index: 151 scientists 44 D-Index: 140 scientists 45 D-Index: 135 scientists 46 D-Index: 121 scientists 47 D-Index: 108 scientists 48 D-Index: 128 scientists 49 D-Index: 111 scientists 50 D-Index: 106 scientists 51 D-Index: 112 scientists 52 D-Index: 102 scientists 53 D-Index: 103 scientists 54 D-Index: 94 scientists 55 D-Index: 61 scientists 56 D-Index: 101 scientists 57 D-Index: 71 scientists 58 D-Index: 65 scientists 59 D-Index: 78 scientists 60 D-Index: 93 scientists 61 D-Index: 56 scientists 62 D-Index: 58 scientists 63 D-Index: 52 scientists 64 D-Index: 63 scientists 65 D-Index: 49 scientists 66 D-Index: 53 scientists 67 D-Index: 57 scientists 68 D-Index: 50 scientists 69 D-Index: 44 scientists 70 D-Index: 44 scientists 71 D-Index: 31 scientists 72 D-Index: 33 scientists 73 D-Index: 33 scientists 74 D-Index: 23 scientists 75 D-Index: 32 scientists 76 D-Index: 24 scientists 77 D-Index: 17 scientists 78 D-Index: 19 scientists 79 D-Index: 9 scientists 80 D-Index: 21 scientists 81 D-Index: 20 scientists 82 D-Index: 17 scientists 83 D-Index: 19 scientists 84 D-Index: 19 scientists 85 D-Index: 14 scientists 86 D-Index: 6 scientists 87 D-Index: 14 scientists 88 D-Index: 17 scientists 89 D-Index: 10 scientists 90 D-Index: 8 scientists 91 D-Index: 8 scientists 92 D-Index: 9 scientists 93 D-Index: 6 scientists 94+ D-Index: 98 scientists
30 D-Index 94+

The last bar groups every scientist with 94 D-Index or more.

Overview

Lloyd R. Snowdon is affiliated with the University of Calgary in Canada. Their academic contributions focus primarily on the field of Engineering with a strong emphasis on subfields such as Ocean Engineering, Mechanics of Materials, Mechanical Engineering, Global and Planetary Change, and Analytical Chemistry.

The main topics of Snowdon's research encompass multiple aspects of drilling and well engineering, hydrocarbon exploration and reservoir analysis, reservoir engineering and simulation methods, hydraulic fracturing and reservoir analysis, atmospheric and environmental gas dynamics, petroleum processing and analysis, as well as radioactive element chemistry and processing.

Frequent publication venues for Snowdon include OPAL (Open@LaTrobe) at La Trobe University and Zenodo (CERN European Organization for Nuclear Research), each featuring seven of their works. Other notable venues include the journal Organic Geochemistry, with five publications, and Marine and Petroleum Geology, with one publication.

Snowdon's recent papers include:

  • Mechanistic insights into sulfur rich oil formation, relevant to geological carbon storage routes. A study using (+) APPI FTICR-MS analysis (2020, Organic Geochemistry)
  • Inter-maceral effects on hydrocarbon generation as determined using artificial mixtures of purified macerals (2020, Organic Geochemistry)
  • Characterization of crude oils derived from carbonate and siliciclastic source rocks using FTICR-MS (2021, Organic Geochemistry)
  • Impacts of natural irradiation on sedimentary organic matter-A review (2023, Organic Geochemistry)
  • The dating of petroleum fluid residence time in subsurface reservoirs. Part 2: Tracking effects of radiolysis on crude oil by comprehensive molecular analysis (2020, Organic Geochemistry)

Snowdon has collaborated frequently with several researchers, including Ulrich von Rad, Bilal U. Haq, Suzanne O'Connell, Alistair Bent, and Charles D. Blome.

Best Publications

  • Immature oil and condensate: modification of hydrocarbon generation model for terrestrial organic matter

    L. R. Snowdon;T. G. Powell

  • Guidelines for assessing the petroleum potential of coaly source rocks using Rock-Eval pyrolysis

    R Sykes;L.R Snowdon

  • Polycyclic Aromatic Hydrocarbon Composition and Potential Sources for Sediment Samples from the Beaufort and Barents Seas

    Mark B. Yunker;Lloyd R. Snowdon;Robie W. Macdonald;John N. Smith

  • Fluorescence micro-spectrometry of synthetic and natural hydrocarbon fluid inclusions: crude oil chemistry, density and application to petroleum migration

    L.D. Stasiuk;L.R. Snowdon

  • Vitamin D and seasonal fluctuations of gadolinium-enhancing magnetic resonance imaging lesions in multiple sclerosis.

    Ashton F. Embry;Lloyd R. Snowdon;Reinhold Vieth

  • Alkane and PAH biomarkers as tracers of terrigenous organic carbon in Arctic Ocean sediments

    Mark B. Yunker;Robie W. Macdonald;Lloyd R. Snowdon;Brian R. Fowler

  • A practical biodegradation scale for use in reservoir geochemical studies of biodegraded oils

    Steve Larter;Haiping Huang;Jennifer Adams;Barry Bennett

  • Oil families and their sources in Canadian Williston Basin, (southeastern Saskatchewan and southwestern Manitoba)

    Kirk G. Osadetz;Paul W. Brooks;Lloyd R. Snowdon

  • Hydrogen isotopic compositions of individual alkanes as a new approach to petroleum correlation: case studies from the Western Canada Sedimentary Basin

    Maowen Li;Yongsong Huang;Mark Obermajer;Chunqing Jiang

  • Rock-Eval Tmax Suppression: Documentation and Amelioration

    Lloyd R. Snowdon

  • The organic geochemistry of asphaltenes and occluded biomarkers

    Lloyd R. Snowdon;John K. Volkman;Zhirong Zhang;Guoliang Tao

  • Oil from Type III organic matter: resinite revisited☆

    Lloyd R. Snowdon

  • Geochemical characterization of selected Western Canada oils by C5–C8 Compound Specific Isotope Correlation (CSIC)

    Michael J. Whiticar;Lloyd R. Snowdon

  • Bakken/Madison petroleum systems in the Canadian Williston Basin. Part 2: molecular markers diagnostic of Bakken and Lodgepole source rocks

    Chunqing Jiang;Maowen Li;Kirk G Osadetz;Lloyd R Snowdon

  • Resinite — A Potential Petroleum Source in the Upper Cretaceous/Tertiary of the Beaufort-Mackenzie Basin

    L. R. Snowdon

  • Book reviewApplied Petroleum Geochemistry: Edited by M. L. Bordenave. Editions Technip, Paris. 524 pp. 785F, U.S.$162

    Lloyd R. Snowdon

  • TLC–FID (Iatroscan) analysis of heavy oil and tar sand samples

    Chunqing Jiang;Steve R. Larter;Kimberley J. Noke;Lloyd R. Snowdon

  • Geochemical characterisation of Middle Devonian oils in NW Alberta, Canada: possible source and maturity effect on pyrrolic nitrogen compounds

    Maowen Li;M.G. Fowler;M. Obermajer;L.D. Stasiuk

  • Depositional Environment and Oil Generation in Ordovician Source Rocks from Southwestern Ontario, Canada: Organic Geochemical and Petrological Approach

    M. Obermajer;M. G. Fowler;L. R. Snowdon

  • Limitations of Use of Organic Petrographic Techniques for Identification of Petroleum Source Rocks

    T. G. Powell;S. Creaney;L. R. Snowdon

  • Natural gas composition in a geological environment and the implications for the processes of generation and preservation

    Lloyd R. Snowdon

Frequent Co-Authors

Martin G. Fowler
Martin G. Fowler Applied Petroleum Technology (Norway)
Fariborz Goodarzi
Fariborz Goodarzi Geological Survey of Canada
Maowen Li
Maowen Li Geological Survey of Canada
Steve Larter
Steve Larter University of Calgary
Philip A. Meyers
Philip A. Meyers University of Michigan–Ann Arbor
Haiping Huang
Haiping Huang University of Calgary
Ian D. Gates
Ian D. Gates University of Calgary
Robie W. Macdonald
Robie W. Macdonald Fisheries and Oceans Canada
Thomas Gentzis
Thomas Gentzis Core Laboratories (United States)
Bernhard Mayer
Bernhard Mayer University of Calgary

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