IMHE OpenIR  > Journal of Mountain Science  > Journal of Mountain Science-2012  > Vol9 No.5
Micromorphological Aspects of Two Forest Soils Development Derived from Igneous Rocks in Lahijan, Iran
Hasan RAMEZANPOUR; Masoumeh POURMASOUMI
Corresponding AuthorHasan RAMEZANPOUR
2012-10
Source PublicationJournal of Mountain Science
Volume9Issue:5Pages:646-655
AbstractIn order to characterize various micromorphologic properties of two forest soils derived from different parent rocks in Lahijan, and  use the data collected from micromorphological analysis to interpret dominant pedogenic processes. Two representative soil pedons, granite (P1) and andesitic basalt (P2) were selected in a mountain landform with northwest aspect. Samples for thin section preparation were taken from each horizon by Kubiena boxes or clods. Micromorphological analysis of soils derived from these two soil pedons in eastern part of Lahijan (northern Iran) were conducted based on the physicochemical and mineralogical data.  Micromorphological properties were characterized using a polarized light microscope under plain and cross light. Thin section study indicated that the nature of the parent material clearly affected the content of clay formation. It also showed that clay accumulation in the Bt horizons was not only due to clay illuviation (argillan), but that strong in situ weathering of primary minerals also contributed to the enrichment of clay in soils derived from andesitic basalt. Comparing the results of clay mineralogy obtained from X-ray diffraction (XRD) with microscopic studies revealed that birefringence fabric (b-fabric) of the groundmass was partly striated due to smectitic minerals in soil of andesitic basalt (Hapludalf), whereas speckled birefringence fabric was dominant in soil of granite (Udorthent) because of the absence of these minerals. We speculate that pores of skeletal fragments or microcracks in P1 were a place for illuvial clay protection. However, the main factor for illuvial clay film disruption (striation and deformation) was biological activity (faunal turbation and root pressure) in P1 and expandable minerals and faunal turbation in P2.
KeywordIgneous Rocks Illuviation Lahijan Soil Micromorphology Granite Andesitic Basalt
DOI10.1007/s11629-012-2184-1
Indexed BySCI
Language英语
Citation statistics
Cited Times:3[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/5135
CollectionJournal of Mountain Science_Journal of Mountain Science-2012_Vol9 No.5
Corresponding AuthorHasan RAMEZANPOUR
Recommended Citation
GB/T 7714
Hasan RAMEZANPOUR,Masoumeh POURMASOUMI. Micromorphological Aspects of Two Forest Soils Development Derived from Igneous Rocks in Lahijan, Iran[J]. Journal of Mountain Science,2012,9(5):646-655.
APA Hasan RAMEZANPOUR,&Masoumeh POURMASOUMI.(2012).Micromorphological Aspects of Two Forest Soils Development Derived from Igneous Rocks in Lahijan, Iran.Journal of Mountain Science,9(5),646-655.
MLA Hasan RAMEZANPOUR,et al."Micromorphological Aspects of Two Forest Soils Development Derived from Igneous Rocks in Lahijan, Iran".Journal of Mountain Science 9.5(2012):646-655.
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