Wedepohl, K. H. (1971). Environmental Influences on the Chemical Composition of Shale and Clays. In L. H. Ahrens, F. Press, S. K. Runcom, & H. C. Urey (Eds.), Physics and Chemistry of the Earth (Vol. 8, pp. 305-335). Oxford: Pergamon Press.
https://doi.org/10.1016/0079-1946(71)90020-6

has been cited by the following article:

• TITLE: Assessment of Heavy Metals Concentration and Enrichment Levels in Soils around Quarries and Barite Mine Sites in Part of Akamkpa and Biase Area, Southeastern Nigeria

  AUTHORS: Ibu Ochelebe, Gordon Essien Nkebem, Ebenezar Agayina Kudamnya

  KEYWORDS: Heavy Metal, Quarry, Barite Mine, Enrichment Factor, Contamination Factor

  JOURNAL NAME: Journal of Geoscience and Environment Protection, Vol.8 No.8, August 31, 2020

  ABSTRACT: Geochemical investigation of the soils around quarry and barite mine sites in part of Akamkpa and Biase area of Southeastern Nigeria, was carried out to assess the concentration and enrichment levels of some heavy metals and trace elements in the soils. The investigation involved the collection of fifteen (15) soil samples between the depth of 15 - 30 cm. The samples were dried at room temperature, prepared and analyzed for heavy metals using inductively couple plasma mass spectrometer. The result shows that the concentration of Co, Cr, Nb, Pb and Sn were higher than the average shale values around the quarries while Ba, Pb and Sn were higher around the barite mines. The contamination factor indicates low to minimal contamination and low to considerable contamination around the quarries and barite mines respectively. While the Enrichment factor indicates minimal to significant enrichment around the quarries and minimal to extremely high enrichments around the barite mines. The result of the factor analysis and spatial distribution of the heavy metals suggests that the metal concentration and enrichment were controlled by the rock types, weathering and anthropogenic activities around the mine sites.