Heavy Minerals in Sands along Brahmaputra (Jamuna) River of Bangladesh
| Autor: | Syed Mohammad Azharul Islam, Md. Zafrul Kabir, Md. Ibrahim Khalil, Ratan Kumar Majumder, Debasish Paul, Md. Nazrul Islam Khan, MI Ali |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Mineral
Heavy mineral 020209 energy Mineralogy 02 engineering and technology engineering.material 010502 geochemistry & geophysics Feldspar 01 natural sciences Silicate chemistry.chemical_compound chemistry Rutile Monazite visual_art 0202 electrical engineering electronic engineering information engineering engineering visual_art.visual_art_medium Ilmenite Geology 0105 earth and related environmental sciences Zircon |
| Zdroj: | International Journal of Geosciences. :47-52 |
| ISSN: | 2156-8367 2156-8359 |
| DOI: | 10.4236/ijg.2016.71005 |
| Popis: | Sands along Brahmaputra River of Bangladesh have long been considered to be a source of heavy minerals (HMs) since it traversed a long way through various terrains. An attempt has been made under this research work to determine the kinds and amounts of heavy minerals in the sands sourced from the river system. Samples from 14 locations along Brahmaputra River covering 30 km distance from upstream to downstream of the river are found to contain different heavy minerals concentration with a range of 7.92 - 25.16 weight% with the remaining of the sample comprising silicate and aluminosilicates. Mineral characterization from peak positions in diffractogram of X-ray Diffraction (XRD) evaluate quartz, feldspar and mica are major categories light mineral while rutile, magnetite, illmenite, zircon, monazite, garnet, uranium arsenide and uranium fluoride are the major types heavy minerals. Ilmenite and rutile are main contributors of total heavy mineral (THM). Titanium bearing minerals ilmenite and rutile contributes 26.22% - 31.01% and 14.57% - 23.50% of THM. In the present study area, most of the sands are found to be fine and medium grained as obtained from the particle sizes analysis using 18- to 230-mesh. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|