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The Study of some Mineralogical Properties of Fine Sand Fraction in some Forest Soils / Northern Iraq | ||
| Al-Qadisiyah Journal For Agriculture Sciences | ||
| Article 1, Volume 3, Issue 1, 2013, Pages 73-83 PDF (0 K) | ||
| DOI: 10.33794/qjas.2013.77785 | ||
| Author | ||
| Barzan O. Ahmed | ||
| Abstract | ||
| This study has been undertaken to investigate the mineralogical properties and morphological features of very fine sand fraction in some forest soils / northern Iraq . The morphological features of very fine sand fractions were studied by optical microscope . Results have shown that the grains of these minerals from individual soil horizons have different colours , those from the surface horizons have dark brownish spots , due to staining by organic matter , those from (B) horizon have a yellowish grey – to yellowish brown spots due to accumulation of Iron oxides , and those from the (C) horizon are grey , similar to the parent rocks . Results of light minerals indicated that quartz is dominant due to effect of parent material of these soils . Two types of opaque minerals (black and brown) are found , wheras the brown opaque minerals were dominant in heavy minerals . Three groups of transparent heavy minerals are found , stable minerals (Pyroxen and Amphibole , metastable minerals) (Epidote and Garnet) , and Ultra stable minerals (Zircon and Tourmaline). | ||
| Keywords | ||
| Mineralogical Properties of Sand; Forest Soils; Heavy Minerals; Light Minerals | ||
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