Mössbauer Study of Sedimentary Rocks from King George Island, Antarctica

E. Kuzmann, P. A. de Souza, L. A. Schuch, A. C. de Oliveira, R. Garg, V. K. Garg

Research output: Contribution to journalArticle

Abstract

The separation of continents at the periphery of Antarctica occurred about 180 ma ago due to volcanic activity. Geological faults can be very important in the study of geological occurrences. Such geological faults occur across the Admiralty Bay, King George Island, and have been studied in detail previously. Controversial statements were given in earlier works, based on conventional geological investigations, as to whether altered “Jurassic” and unaltered Tertiary rocks were separated by a major fault which goes across the Admiralty Bay, or whether there is no difference in the alteration of the rocks located at either side of the fault. The aim of our work is to investigate rock samples from the Admiralty Bay of King George Island, Antarctica, from different locations on both sides of the geological fault. For these investigations 57Fe Mössbauer spectroscopy and X-ray diffractometry were used. We have found that the phase composition, and the iron distribution among the crystallographic sites of iron-bearing minerals, are characteristic of the location of the rock samples from the Admiralty Bay of King George Island. There is a much higher amount of iron oxides in the rocks from the south part of the geological fault than in the north part. The differences in the mineral composition and iron distribution showed that the rocks in the southern part of the geological fault of King George Island are significantly altered compared to the rocks in the northern part. Our present results support and complement well the results obtained earlier on soils from King George Island.

Original languageEnglish
Pages (from-to)327-335
Number of pages9
JournalHyperfine Interactions
Volume141-142
Issue number1-4
DOIs
Publication statusPublished - Jun 28 2002

Fingerprint

Sedimentary rocks
sedimentary rocks
Antarctic regions
Rocks
rocks
Iron
iron
Minerals
Bearings (structural)
minerals
continents
Iron oxides
iron oxides
Phase composition
complement
X ray diffraction analysis
volcanology
soils
Spectroscopy
occurrences

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Nuclear and High Energy Physics
  • Atomic and Molecular Physics, and Optics
  • Physical and Theoretical Chemistry
  • Physics and Astronomy(all)
  • Electronic, Optical and Magnetic Materials

Cite this

Kuzmann, E., de Souza, P. A., Schuch, L. A., de Oliveira, A. C., Garg, R., & Garg, V. K. (2002). Mössbauer Study of Sedimentary Rocks from King George Island, Antarctica. Hyperfine Interactions, 141-142(1-4), 327-335. https://doi.org/10.1023/A:1021219918166

Mössbauer Study of Sedimentary Rocks from King George Island, Antarctica. / Kuzmann, E.; de Souza, P. A.; Schuch, L. A.; de Oliveira, A. C.; Garg, R.; Garg, V. K.

In: Hyperfine Interactions, Vol. 141-142, No. 1-4, 28.06.2002, p. 327-335.

Research output: Contribution to journalArticle

Kuzmann, E, de Souza, PA, Schuch, LA, de Oliveira, AC, Garg, R & Garg, VK 2002, 'Mössbauer Study of Sedimentary Rocks from King George Island, Antarctica', Hyperfine Interactions, vol. 141-142, no. 1-4, pp. 327-335. https://doi.org/10.1023/A:1021219918166
Kuzmann E, de Souza PA, Schuch LA, de Oliveira AC, Garg R, Garg VK. Mössbauer Study of Sedimentary Rocks from King George Island, Antarctica. Hyperfine Interactions. 2002 Jun 28;141-142(1-4):327-335. https://doi.org/10.1023/A:1021219918166
Kuzmann, E. ; de Souza, P. A. ; Schuch, L. A. ; de Oliveira, A. C. ; Garg, R. ; Garg, V. K. / Mössbauer Study of Sedimentary Rocks from King George Island, Antarctica. In: Hyperfine Interactions. 2002 ; Vol. 141-142, No. 1-4. pp. 327-335.
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