Minerals in Human Geophagic Soils from Selected Rural Communities in Gauteng and Limpopo Provinces in South Africa
Bibliographic Data
| ID | 5177854 |
|---|---|
| Authors | Georges-Ivo E Ekosse (Directorate of Research and Innovation, University of Venda, P/Bag X5050, Thohoyandou0950, Limpopo Province, South Africa), Georges-Ivo Ekosse (0000-0002-5741-5886, University of Venda), Larry C Obi (University of Fort Hare), Larry Chikwelu (0000-0002-0068-2035, University of Fort Hare) |
| Year | 2015 |
| Volume | 50 |
| Issue | 3 |
| Pages | 253-261 |
| Publication date | 2015-06-01 |
| Open Access | Yes |
| Type | ARTICLE |
| Venue | Journal of Human Ecology (JOURNAL) |
| Journal identifiers | ISSN: 0970-9274 • E-ISSN: 2456-6608 |
| Publisher | Kamla Raj Enterprises (PUBLISHER) |
| DOI | 10.1080/09709274.2015.11906883 |
| OpenAlex | W2554613544, W4238385336 |
| Language | EN |
| References cited | 3 |
Twelve representative human geophagic soil samples collected from selected rural communities in Gauteng and Limpopo Provinces, South Africa, were analyzed using X-ray diffractometry to identify, quantify and characterize their minerals constituents. Kaolinite, smectite, talc, muscovite, quartz, calcite, dolomite, microcline, goethite and hematite were the clay and non-clay minerals identified. Two most dominant minerals in the geophagic soil samples were quartz (35-52 wt%) and kaolinite (31-53 wt%). Abundances for the other minerals were 8-27wt%. Based on the results, the clay minerals and mineral oxides could serve as elemental sources for supplementation of Al, Na, K, Ca, Mg, and Fe in the bodies of the geophagic individuals. There could however be influential factors such as the soil matrix itself, soil type, chemical form of the element, stomach and intestinal pH, and the soil to solution ratio, which could affect the elemental bio-accessibilities
Calcite · Chlorite · Clay minerals · Dolomite · Feldspar · Geochemistry · Goethite · Hematite · Illite · Kaolinite · Microcline · Mineral · Mineralogy · Muscovite · Quartz · Soil water · Chemistry · Therapeutic Uses of Natural Elements · Environmental Chemistry · Geology · Soil Science
| Highly cited | No |
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