Skip to main content Accessibility help
×
Home

A scanning electron microscope technique for identifying the mineralogy of dust in ice cores

  • Rachel W. Obbard (a1), Ian Baker (a1) and David J. Prior (a2)

Abstract

Dust particles in an ice core from East Rongbuk Glacier on the northern slope of Qomolangma (Mount Everest; 28°01′ N, 86°58′ E; 6518 m a.s.l.), central Himalaya, have been identified as mica using a combination of scanning electron microscope-based techniques and energy-dispersive X-ray spectroscopy to identify the elements present, and electron backscatter diffraction to identify the crystal type. This technique for identifying individual crystalline dust particles in samples of glacial ice could be especially useful in the future for identifying water-soluble crystals in ice, for studying the strain history (glaciotectonics) of basal ice or in studies of ice–mica composites used as analogs of quartz-mica rocks.

  • View HTML
    • Send article to Kindle

      To send this article to your Kindle, first ensure no-reply@cambridge.org is added to your Approved Personal Document E-mail List under your Personal Document Settings on the Manage Your Content and Devices page of your Amazon account. Then enter the ‘name’ part of your Kindle email address below. Find out more about sending to your Kindle. Find out more about sending to your Kindle.

      Note you can select to send to either the @free.kindle.com or @kindle.com variations. ‘@free.kindle.com’ emails are free but can only be sent to your device when it is connected to wi-fi. ‘@kindle.com’ emails can be delivered even when you are not connected to wi-fi, but note that service fees apply.

      Find out more about the Kindle Personal Document Service.

      A scanning electron microscope technique for identifying the mineralogy of dust in ice cores
      Available formats
      ×

      Send article to Dropbox

      To send this article to your Dropbox account, please select one or more formats and confirm that you agree to abide by our usage policies. If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your <service> account. Find out more about sending content to Dropbox.

      A scanning electron microscope technique for identifying the mineralogy of dust in ice cores
      Available formats
      ×

      Send article to Google Drive

      To send this article to your Google Drive account, please select one or more formats and confirm that you agree to abide by our usage policies. If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your <service> account. Find out more about sending content to Google Drive.

      A scanning electron microscope technique for identifying the mineralogy of dust in ice cores
      Available formats
      ×

Copyright

References

Hide All
Arimoto, R. 2001. Eolian dust and climate: relationships to sources, tropospheric chemistry, transport and deposition. Earth-Sci. Rev., 54(1–3), 2942.
Baker, I., Cullen, D. and Iliescu, D.. 2003. The microstructural location of impurities in ice. Can. J. Phys., 81(1–2), 19.
Bryson, R.A. 1986. Airstream climatology of Asia. In Proceedings of the International Symposium on the Qinghai–Xizang Plateau and Mountain Meteorology, 20–24 March 1984, Beijing, China. Boston, MA, American Meteorological Society, 604617.
Cullen, D. and Baker, I.. 2000. Correspondence. The chemistry of grain boundaries in Greenland ice. J. Glaciol., 46(155), 703706.
Cullen, D. and Baker, I.. 2001. Observation of impurities in ice. Microsc. Res. Techn., 55(3), 198207.
Dempsey, E., Prior, D., Mariani, E., Troy, V. and Tatham, D.J.. In press. Mica controlled anisotropy within mid to upper crustal mylonites: an EBSD study of mica fabrics in the Alpine Fault Zone, New Zealand. In Prior, D., Rutter, E.H. and Tatham, D.J., eds. Deformation mechanisms, rheology and tectonics: current status and future perspectives. London, Geological Society of London.
Hambrey, M.J. 1979. Crystal orientation fabrics in relation to structures and strain, Griesgletscher, Valais, Switzerland. Z. Gletscherkd. Glazialgeol., 15(1), 7386.
Hou, S., Qin, D., Zhang, D., Kang, S., Mayewski, P.A. and Wake, C.P.. 2003. A 154 a high-resolution ammonium record from the Rongbuk Glacier, north slope of Mt. Qomolangma (Everest), Tibet–Himal region. Atmos. Environ., 37(5), 721729.
Hou, S. and 7 others. 2004. Correspondence. Age of Himalayan bottom ice cores. J. Glaciol., 50(170), 467468.
Iliescu, D., Baker, I. and Chang, H.. 2004. Determining the orientations of ice crystals using electron backscatter patterns. Microsc. Res. Techn., 63(4), 183187.
Jiang, H. and Ding, Z.. 2010. Eolian grain-size signature of the Sikouzi lacustrine sediments (Chinese Loess Plateau): implications for Neogene evolution of the East Asian winter monsoon. Geol. Soc. Am. Bull., 122(5–6), 843854.
Jonsson, S. 1970. Structural studies of subpolar glacier ice. Geogr. Ann., 52A(2), 129145.
Kamb, W.B. 1959. Ice petrofabric observations from Blue Glacier, Washington, in relation to theory and experiment. J. Geophys. Res., 64(11), 18911909.
Kang, S., Wake, C.P., Qin, D., Mayewski, P.A. and Yao, T.. 2000. Monsoon and dust signals recorded in Dasuopu Glacier, Tibetan Plateau. J. Glaciol., 46(153), 222226.
Kang, S. and 7 others. 2002. Glaciochemical records from a Mt. Everest ice core: relationship to atmospheric circulation over Asia. Atmos. Environ., 36(21), 33513361.
Kang, S.C., Mayewski, P.A., Qin, D.H., Sneed, S.A., Ren, J.W. and Zhang, D.Q.. 2004. Seasonal differences in snow chemistry from the vicinity of Mt. Everest, central Himalayas. Atmos. Environ., 38(18), 28192829.
Obbard, R. 2006. Microstructural determinants in glacial ice. (PhD thesis, Dartmouth College.)
Obbard, R., Baker, I. and Sieg, K.. 2006. Using electron backscatter diffraction patterns to examine recrystallization in polar ice sheets. J. Glaciol., 52(179), 546557.
Osterberg, E.C., Handley, M.J., Sneed, S.B., Mayewski, P.A. and Kreutz, K.J.. 2006. Continuous ice core melter system with discrete sampling for major ion, trace element, and stable isotope analyses. Environ. Sci. Technol., 40(10), 33553361.
Thompson, L.G., Yao, T., Mosley-Thompson, E., Davis, M.E., Henderson, K.A. and Lin, P.. 2000. A high-resolution millennial record of the south Asian monsoon from Himalayan ice cores. Science, 289(5486), 19161919.
Thompson, L.G. and 6 others. 2006. Ice core evidence for asynchronous glaciation on the Tibetan Plateau. Quat. Int., 154/155, 310.
Thorsteinsson, T., Kipfstuhl, J. and Miller, H.. 1997. Textures and fabrics in the GRIP ice core. J. Geophys. Res., 102(C12), 26,58326,599.
Wake, C.P. and 6 others. 2001. Changes in atmospheric circulation over the South-Eastern Tibetan Plateau over the last two centuries from a Himalayan ice core. PAGES News, 9(3), 1416.
Wilson, C.J.L. 1983. Foliation and strain development in ice–mica models. Tectonophysics, 92(1–3), 93122.
Wilson, C.J.L. 1984. Shear bands, crenulations and differential layering in ice–mica models. J. Struct. Geol., 6(3), 303319.
Xu, J. and 6 others. 2009a. Records of volcanic events since AD 1800 in the East Rongbuk ice core from Mt. Qomolangma. Chinese Sci. Bull., 54(8), 14111416.
Xu, J., Hou, S., Chen, F., Ren, J. and Qin, D.. 2009b. Tracing the sources of particles in the East Rongbuk ice core from Mt. Qomolangma. Chinese Sci. Bull., 54(10), 17811785.
Xu, J. and 10 others. 2010. A 108.83-m ice-core record of atmospheric dust deposition at Mt. Qomolangma (Everest), Central Himalaya. Quat. Res., 73(1), 3338.
Yao, T. and 7 others. 2002. Temperature and methane changes over the past 1000 years recorded in Dasuopu glacier (central Himalaya) ice core. Ann. Glaciol., 35, 379383.

Metrics

Full text views

Total number of HTML views: 0
Total number of PDF views: 0 *
Loading metrics...

Abstract views

Total abstract views: 0 *
Loading metrics...

* Views captured on Cambridge Core between <date>. This data will be updated every 24 hours.

Usage data cannot currently be displayed