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Geosciences Journal

, Volume 22, Issue 4, pp 525–532 | Cite as

Quantification of particle shape by an automated image analysis system: a case study in natural sediment samples from extreme climates

  • Young Ji Joo
  • Anastasia M. Soreghan
  • Megan E. Elwood Madden
  • Gerilyn S. Soreghan
Letter

Abstract

Sediment particle shape and microtexture are key parameters utilized for characterizing sediment transport and weathering (both physical and chemical) processes, which in turn are governed by environmental conditions such as climate. Assessing particle shape often involves either qualitative descriptors or time-consuming measurements of shape parameters by a human operator. This study employs a state-of-the-art, quantitative shape analysis instrument known as the “Morphologi G3” from Malvern Instruments, an automated microscope system capable of determining quantitative shape parameters via static image analysis of > 1000 particles in less than two hours. This instrument captures 2D projected images of particles and provides information on grain size measurements such as circle-equivalent diameter, length, width, perimeter, and area, as well as shape parameters such as circularity and convexity. As a case study, we conducted analyses on mud- and sand-sized particles collected from fluvial/alluvial systems of end-member climates to assess variations in sediment particle morphology potentially related to climate and/or transport distance and processes. Sediment samples were collected from fluvial systems in four contrasting climates: hot-arid (southeastern California, USA), hot-humid (eastern Puerto Rico), glacial-arid (proglacial stream of the Dry Valleys, Antarctica), and glacial-humid (Austerdalen proglacial stream, Norway). Results provide quantitative constraints on shape differences that relate to climate and transport, even for very fine-grained sand and mud size fractions. Comparison of the circularity of sediment particles from the four end-member climates indicates that the very fine sand fractions reflect differential physical abrasion and transport processes, whereas the morphology of the mud fraction seemingly imprints chemical weathering processes. We conclude that this new technique has great potential to further document impacts of climate on particle shape with applications to both modern and deep-time depositional systems.

Key words

particle shape morphology image analysis glacial sediment circularity convexity 

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References

  1. Becker, L.W.M., Hjelstuen, B.O., Støren, E.W.N., Sejrup, H.P., and Lancaster N., 2018, Automated counting of sand-sized particles in marine records. Sedimentology, 65, 842–850.CrossRefGoogle Scholar
  2. Clow, G.D., McKay, C.P., Simmons, Jr. G.M., and Wharton, Jr. R.A., 1988, Climatological observations and predicted sublimation rates at Lake Hoare, Antarctica. Journal of Climate, 1, 715–728.CrossRefGoogle Scholar
  3. Doran, P.T., McKay, C.P., Fountain, A.G., Nylen, T., McKnight, D.M., Jaros, C., and Barrett, J.E., 2008, Hydrologic response to extreme warm and cold summers in the McMurdo Dry Valleys, East Antarctica. Antarctic Science, 20, 49–509.CrossRefGoogle Scholar
  4. Evans, D., Phillips, E., Hiemstra, J., and Auton, C., 2006, Subglacial till: formation, sedimentary characteristics and classification. Earth- Science Reviews, 78, 115–176.CrossRefGoogle Scholar
  5. Gooseff, M.N., McKnight, D.M., Doran, P., Fountain, A.G., and Lyons, W.B., 2011, Hydrological connectivity of the landscape of the McMurdo Dry Valleys, Antarctica. Geography Compass, 5, 666–681.CrossRefGoogle Scholar
  6. Hall, B.L. and Denton, G.H., 2005, Surficial geology and geomorphology of eastern and central Wright Valley, Antarctica. Geomorphology, 64, 25–65.CrossRefGoogle Scholar
  7. Hall, K. and André, M.F., 2003, Rock thermal data at the grain scale: applicability to granular disintegration in cold environments. Earth Surface Processes and Landforms, 28, 823–836.CrossRefGoogle Scholar
  8. Hall, K., Guglielmin, M., and Strini, A., 2008, Weathering of granite in Antarctica: II. Thermal stress at the grain scale. Earth Surface Processes and Landforms, 33, 475–493.CrossRefGoogle Scholar
  9. Joo, Y.J., Elwood Madden, M.E., and Soreghan, G.S., 2016, Chemical and physical weathering in a hot-arid, tectonically active alluvial system of Anza Borrego Desert, California. Sedimentology, 63, 1065–1083.CrossRefGoogle Scholar
  10. Lewis, A.R., Marchant, D.R., Kowalewski, D.E., Baldwin, S.L., and Webb, L.E., 2006, The age and origin of the Labyrinth, western Dry Valleys, Antarctica: evidence for extensive middle Miocene subglacial floods and freshwater discharge to the Southern Ocean. Geology, 34, 513–516.CrossRefGoogle Scholar
  11. Lutro, O. and Tveten, E., 1996, Geological map of Norway, berggrunskart Årdal M 1: 250,000. Geological Survey of Norway, Trondheim.Google Scholar
  12. Mahaney, W.C., 1995, Pleistocene and Holocene glacier thicknesses, transport histories and dynamics inferred from SEM microtextures on quartz particles. Boreas, 24, 293–304.CrossRefGoogle Scholar
  13. Mahaney, W.C., 2002, Atlas of sand grain surface textures and applications. Oxford University Press, Oxford, 256 p.Google Scholar
  14. Malvern Instruments Ltd., 2015, Morphologi G3 user manual. Worcestershire, 268 p.Google Scholar
  15. Margolis, S.V. and Krinsley, D.H., 1974, Processes of formation and environmental occurrence of microfeatures on detrital quartz grains. American Journal of Science, 274, 449–464.CrossRefGoogle Scholar
  16. Marra, K.R., Elwood Madden, M.E., Soreghan, G.S., and Hall, B.L., 2017, Chemical weathering trends in fine-grained ephemeral stream sediments of the McMurdo Dry Valleys, Antarctica. Geomorphology, 281, 13–30.CrossRefGoogle Scholar
  17. Marra, K.R., Soreghan, G.S., Elwood Madden, M.E., Keiser, L.J., and Hall, B.L., 2014, Trends in grain size and BET surface area in coldarid versus warm-semiarid fluvial systems. Geomorphology, 206, 483–491.CrossRefGoogle Scholar
  18. May, R.W., 1980, The formation and significance of irregularly shaped quartz grains in till. Sedimentology, 27, 325–331.CrossRefGoogle Scholar
  19. Pye, K. and Mazzullo, J., 1994, Effects of tropical weathering on quartz grain shape: an example from northeastern Australia. Journal of Sedimentary Research, 64, 500–507.Google Scholar
  20. Remeika, P. and Lindsay, L., 1992, Geology of Anza-Borrego: edge of creation. Sunbelt Publications, San Diego, 208 p.Google Scholar
  21. Rogers, C., Cram, C., Pease, Jr. M., and Tischler, M., 1979, Geologic map of the Yabucoa and Punta Tuna quadrangles, Puerto Rico. U.S. Geological Survey Miscellaneous Geologic Investigations Map I, San Diego, USA.Google Scholar
  22. Smith, C., Soreghan, G.S., and Ohta, T., 2018, Scanning electron microscope (SEM) microtextural analysis as a paleoclimate tool for fluvial deposits: a modern test. Geological Society of America Bulletin. https://doi.org/10.1130/B31692.1 Google Scholar
  23. Strand, R.G., 1962, Geologic Map of California: San Diego-El Centro Sheet. California Division of Mines and Geology.Google Scholar
  24. Vos, K., Vandenberghe, N., and Elsen, J., 2014, Surface textural analysis of quartz grains by scanning electron microscopy (SEM): from sample preparation to environmental interpretation. Earth-Science Reviews, 128, 93–104.CrossRefGoogle Scholar
  25. Woronko, B., 2016, Frost weathering versus glacial grinding in the micromorphology of quartz sand grains: processes and geological implications. Sedimentary Geology 335, 103–119.CrossRefGoogle Scholar

Copyright information

© The Association of Korean Geoscience Societies and Springer-Verlag GmbH Germany, part of Springer Nature 2018

Authors and Affiliations

  • Young Ji Joo
    • 1
  • Anastasia M. Soreghan
    • 2
  • Megan E. Elwood Madden
    • 2
  • Gerilyn S. Soreghan
    • 2
  1. 1.Division of Polar PaleoenvironmentsKorea Polar Research InstituteIncheonRepublic of Korea
  2. 2.School of Geology and GeophysicsUniversity of OklahomaNormanU.S.A.

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