Research Article
Assessment of Physical-Chemical Characteristics of Water and Sediments from a Brazilian Tropical Estuary: Status and Environmental Implications
Table 6
Positions
for minerals in the silt fraction of the sediment collected at sampling point 3, in March of 2007 [
25–
27].
| Mineral (chemical formula) | Positions |
| Kaolinite (Al2Si2O5(OH)4) | 14.2139 and 28.8365 | Feldspar (CaAlSi3O8, KAlSi3O8 or NaAlSi3O8,) | 31.93 | Illite [general formula: Kx(Al2)(Si4-x Alx)O10 (OH)2] | 10.1354 and 20.5040 | Quartz (SiO2) | 24.1458 and 30.9085 |
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