Details
| Original language | English |
|---|---|
| Title of host publication | Processes and Phenomena on the Boundary Between Biogenic and Abiogenic Nature |
| Place of Publication | Cham |
| Publisher | Springer International Publishing AG |
| Pages | 785-801 |
| Number of pages | 17 |
| ISBN (electronic) | 978-3-030-21614-6 |
| ISBN (print) | 978-3-030-21613-9 |
| Publication status | Published - 2020 |
Publication series
| Name | Lecture Notes in Earth System Sciences |
|---|---|
| ISSN (Print) | 2193-8571 |
| ISSN (electronic) | 2193-858X |
Abstract
In the regions of Asia and Africa geophagic clays are traditionally used by population based on historical and traditional motivations including ethno-medical ones. The aim of the present research was to reveal the general common properties of some geophagic clay occurrences based on their mineral composition and landscapes specificity, in which they were sampled. In addition to assess the potential source of the minerals in geoghagic clays, the mineral association of the hard rocks, located in geophagic loose material, was studied too. Mineralogy of the samples was investigated using X-ray diffractometry, FTIR spectroscopy, and optical microscopy. The studied samples were collected in two provinces of South Africa: Free State and Limpopo. It was shown that location of geophagic materials is spread widely in the studied provinces. Using material as geophagic is more historically and traditionally determined than by the type or specificity of a landscape, which cannot be characterized by common features. Whereas it was revealed that despite the differences in location and rock geneses, the most common mineral in the fine size fraction of the studied geophagic samples is smectite—a fine-sized clay mineral with high specific surface area being able to play a role as adsorbent.
Keywords
- Cementing agents, Clay mineralogy, Geophagic clays, Smectite
ASJC Scopus subject areas
- Earth and Planetary Sciences(all)
- Computers in Earth Sciences
- Earth and Planetary Sciences(all)
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Processes and Phenomena on the Boundary Between Biogenic and Abiogenic Nature. Cham: Springer International Publishing AG, 2020. p. 785-801 (Lecture Notes in Earth System Sciences).
Research output: Chapter in book/report/conference proceeding › Contribution to book/anthology › Research › peer review
}
TY - CHAP
T1 - Landscape settings and mineralogy of some geophagic clay occurrences in south africa
AU - Ekosse, Georges I.
AU - Chistyakov, Kirill V.
AU - Rozanov, Andrei B.
AU - Bashkirova, Nadezhda N.
AU - Dultz, Stefan
AU - Polekhovsky, Yury S.
AU - Lessovaia, Sofia N.
N1 - Funding information: This study was supported by the Russian Foundation for Basic Research (14-05-93959) and NRF UID 92199 project grants and St-Petersburg State University (18.42.1426.2015). XRD and IR studies were carried out in the X-ray Diffraction Centre of St. Petersburg State University.
PY - 2020
Y1 - 2020
N2 - In the regions of Asia and Africa geophagic clays are traditionally used by population based on historical and traditional motivations including ethno-medical ones. The aim of the present research was to reveal the general common properties of some geophagic clay occurrences based on their mineral composition and landscapes specificity, in which they were sampled. In addition to assess the potential source of the minerals in geoghagic clays, the mineral association of the hard rocks, located in geophagic loose material, was studied too. Mineralogy of the samples was investigated using X-ray diffractometry, FTIR spectroscopy, and optical microscopy. The studied samples were collected in two provinces of South Africa: Free State and Limpopo. It was shown that location of geophagic materials is spread widely in the studied provinces. Using material as geophagic is more historically and traditionally determined than by the type or specificity of a landscape, which cannot be characterized by common features. Whereas it was revealed that despite the differences in location and rock geneses, the most common mineral in the fine size fraction of the studied geophagic samples is smectite—a fine-sized clay mineral with high specific surface area being able to play a role as adsorbent.
AB - In the regions of Asia and Africa geophagic clays are traditionally used by population based on historical and traditional motivations including ethno-medical ones. The aim of the present research was to reveal the general common properties of some geophagic clay occurrences based on their mineral composition and landscapes specificity, in which they were sampled. In addition to assess the potential source of the minerals in geoghagic clays, the mineral association of the hard rocks, located in geophagic loose material, was studied too. Mineralogy of the samples was investigated using X-ray diffractometry, FTIR spectroscopy, and optical microscopy. The studied samples were collected in two provinces of South Africa: Free State and Limpopo. It was shown that location of geophagic materials is spread widely in the studied provinces. Using material as geophagic is more historically and traditionally determined than by the type or specificity of a landscape, which cannot be characterized by common features. Whereas it was revealed that despite the differences in location and rock geneses, the most common mineral in the fine size fraction of the studied geophagic samples is smectite—a fine-sized clay mineral with high specific surface area being able to play a role as adsorbent.
KW - Cementing agents
KW - Clay mineralogy
KW - Geophagic clays
KW - Smectite
UR - http://www.scopus.com/inward/record.url?scp=85072059451&partnerID=8YFLogxK
U2 - 10.1007/978-3-030-21614-6_42
DO - 10.1007/978-3-030-21614-6_42
M3 - Contribution to book/anthology
AN - SCOPUS:85072059451
SN - 978-3-030-21613-9
T3 - Lecture Notes in Earth System Sciences
SP - 785
EP - 801
BT - Processes and Phenomena on the Boundary Between Biogenic and Abiogenic Nature
PB - Springer International Publishing AG
CY - Cham
ER -