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Textures of orthopyroxenites from the Burgersfort bulge of the eastern Bushveld Complex, Republic of South Africa

Publication ,  Journal Article
Williams, E; Boudreau, AE; Boorman, S; Kruger, FJ
Published in: Contributions to Mineralogy and Petrology
April 1, 2006

A suite of 30 samples was collected from the Burgersfort bulge area of the eastern Bushveld Complex for a detailed quantitative textural study. The studied section represents a stratigraphic column approximately 1,000 m thick, of mainly orthopyroxenites from the lower zone (LZ) and lower critical zone. Crystal size distribution (CSD) plots and quantitative fabric analyses reveal a history of crystal aging and compaction, as evident from the loss of smaller-sized crystals and the development of foliation with little evidence of mineral lineation. Compared with the thicker section from Jagdlust (∼80 km north), the LZ orthopyroxenites at Burgersfort are consistently finer grained. Foliation is equally well developed at both locations and is consistent with a relatively thin compaction zone at the top of the mush column. Grain size is largely a function of local cooling history with a grain size growth exponent estimated to be between 2.0 and 3.4. © Springer-Verlag 2006.

Duke Scholars

Published In

Contributions to Mineralogy and Petrology

DOI

ISSN

0010-7999

Publication Date

April 1, 2006

Volume

151

Issue

4

Start / End Page

480 / 492

Related Subject Headings

  • Energy
  • 4019 Resources engineering and extractive metallurgy
  • 3705 Geology
  • 3703 Geochemistry
  • 0499 Other Earth Sciences
  • 0403 Geology
  • 0402 Geochemistry
 

Citation

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Williams, E., Boudreau, A. E., Boorman, S., & Kruger, F. J. (2006). Textures of orthopyroxenites from the Burgersfort bulge of the eastern Bushveld Complex, Republic of South Africa. Contributions to Mineralogy and Petrology, 151(4), 480–492. https://doi.org/10.1007/s00410-006-0072-9
Williams, E., A. E. Boudreau, S. Boorman, and F. J. Kruger. “Textures of orthopyroxenites from the Burgersfort bulge of the eastern Bushveld Complex, Republic of South Africa.” Contributions to Mineralogy and Petrology 151, no. 4 (April 1, 2006): 480–92. https://doi.org/10.1007/s00410-006-0072-9.
Williams E, Boudreau AE, Boorman S, Kruger FJ. Textures of orthopyroxenites from the Burgersfort bulge of the eastern Bushveld Complex, Republic of South Africa. Contributions to Mineralogy and Petrology. 2006 Apr 1;151(4):480–92.
Williams, E., et al. “Textures of orthopyroxenites from the Burgersfort bulge of the eastern Bushveld Complex, Republic of South Africa.” Contributions to Mineralogy and Petrology, vol. 151, no. 4, Apr. 2006, pp. 480–92. Scopus, doi:10.1007/s00410-006-0072-9.
Williams E, Boudreau AE, Boorman S, Kruger FJ. Textures of orthopyroxenites from the Burgersfort bulge of the eastern Bushveld Complex, Republic of South Africa. Contributions to Mineralogy and Petrology. 2006 Apr 1;151(4):480–492.
Journal cover image

Published In

Contributions to Mineralogy and Petrology

DOI

ISSN

0010-7999

Publication Date

April 1, 2006

Volume

151

Issue

4

Start / End Page

480 / 492

Related Subject Headings

  • Energy
  • 4019 Resources engineering and extractive metallurgy
  • 3705 Geology
  • 3703 Geochemistry
  • 0499 Other Earth Sciences
  • 0403 Geology
  • 0402 Geochemistry