Mineralogy and sand surface morphology of selected andisols from west Sumatra
Andisols from Mt. Marapi and Mt. Pasaman in west Sumatra, Indonesia were studied to characterize their mineralogy and the surface morphology of the sand grains. The minerals in the sand grains included quartz, plagioclase, hornblende, augite, hypersthene, olivine and volcanic glass having different...
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| Format: | Article |
| Language: | English |
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Malaysian Society of Soil Science
2000
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| Online Access: | http://psasir.upm.edu.my/id/eprint/49570/1/Mineralogy%20and%20sand%20surface%20morphology%20of%20selected%20andisols%20from%20west%20Sumatra.pdf |
| _version_ | 1796975154618695680 |
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| author | Fiantis, Dian Jusop, Shamsuddin Van Ranst, Eric Darus, Siti Zauyah Ishak, Che Fauziah |
| author_facet | Fiantis, Dian Jusop, Shamsuddin Van Ranst, Eric Darus, Siti Zauyah Ishak, Che Fauziah |
| author_sort | Fiantis, Dian |
| collection | UPM |
| description | Andisols from Mt. Marapi and Mt. Pasaman in west Sumatra, Indonesia were studied to characterize their mineralogy and the surface morphology of the sand grains. The minerals in the sand grains included quartz, plagioclase, hornblende, augite, hypersthene, olivine and volcanic glass having different surface morphology. The morphology surface features present are bubbles, pitted, curve platy and sponge-like. Some of the sand grains are coated with amorphous materials. Halloysite is confirmed by the presence of strong peaks of Si and Al and a weak peak of Fe on the SEM-EDX spectra. The clay fraction is composed mainly of allophane, cristobalite, feldspars and halloysite. Soils from the Mt. Pasaman have some gibbsite, while those of the Mt. Marapi have opaline silica in the surface horizons. The abundance of opaline silica tends to decrease with the age of the volcanic ash soils. |
| first_indexed | 2024-03-06T09:07:23Z |
| format | Article |
| id | upm.eprints-49570 |
| institution | Universiti Putra Malaysia |
| language | English |
| last_indexed | 2024-03-06T09:07:23Z |
| publishDate | 2000 |
| publisher | Malaysian Society of Soil Science |
| record_format | dspace |
| spelling | upm.eprints-495702016-12-30T03:38:37Z http://psasir.upm.edu.my/id/eprint/49570/ Mineralogy and sand surface morphology of selected andisols from west Sumatra Fiantis, Dian Jusop, Shamsuddin Van Ranst, Eric Darus, Siti Zauyah Ishak, Che Fauziah Andisols from Mt. Marapi and Mt. Pasaman in west Sumatra, Indonesia were studied to characterize their mineralogy and the surface morphology of the sand grains. The minerals in the sand grains included quartz, plagioclase, hornblende, augite, hypersthene, olivine and volcanic glass having different surface morphology. The morphology surface features present are bubbles, pitted, curve platy and sponge-like. Some of the sand grains are coated with amorphous materials. Halloysite is confirmed by the presence of strong peaks of Si and Al and a weak peak of Fe on the SEM-EDX spectra. The clay fraction is composed mainly of allophane, cristobalite, feldspars and halloysite. Soils from the Mt. Pasaman have some gibbsite, while those of the Mt. Marapi have opaline silica in the surface horizons. The abundance of opaline silica tends to decrease with the age of the volcanic ash soils. Malaysian Society of Soil Science 2000 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/49570/1/Mineralogy%20and%20sand%20surface%20morphology%20of%20selected%20andisols%20from%20west%20Sumatra.pdf Fiantis, Dian and Jusop, Shamsuddin and Van Ranst, Eric and Darus, Siti Zauyah and Ishak, Che Fauziah (2000) Mineralogy and sand surface morphology of selected andisols from west Sumatra. Malaysian Journal of Soil Science, 4. pp. 9-24. ISSN 1394-7990 http://www.msss.com.my/mjss/abs04.htm |
| spellingShingle | Fiantis, Dian Jusop, Shamsuddin Van Ranst, Eric Darus, Siti Zauyah Ishak, Che Fauziah Mineralogy and sand surface morphology of selected andisols from west Sumatra |
| title | Mineralogy and sand surface morphology of selected andisols from west Sumatra |
| title_full | Mineralogy and sand surface morphology of selected andisols from west Sumatra |
| title_fullStr | Mineralogy and sand surface morphology of selected andisols from west Sumatra |
| title_full_unstemmed | Mineralogy and sand surface morphology of selected andisols from west Sumatra |
| title_short | Mineralogy and sand surface morphology of selected andisols from west Sumatra |
| title_sort | mineralogy and sand surface morphology of selected andisols from west sumatra |
| url | http://psasir.upm.edu.my/id/eprint/49570/1/Mineralogy%20and%20sand%20surface%20morphology%20of%20selected%20andisols%20from%20west%20Sumatra.pdf |
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