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Chemical weathering of new pyroclastic deposits from Mt. Merapi (Java), Indonesia.

The Java Island, Indonesia with abundant amount of pyroclastic deposits is located in the very active and dynamic Pacific Ring of Fires. Studying the geochemical weathering indices of these pyroclastic deposits is important to get a clear picture about weathering profiles on deposits resulting from...

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Main Authors: Fiantis, Dian, Nelson, Malik, Van Ranst, Eric, Jusop, Shamsuddin, Qafoku, Nikolla P.
Format: Article
Language:English
English
Published: Springer Verlag 2009
Online Access:http://psasir.upm.edu.my/id/eprint/13582/1/Chemical%20weathering%20of%20new%20pyroclastic%20deposits%20from%20Mt.pdf
http://psasir.upm.edu.my/id/eprint/13582/
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spelling my.upm.eprints.135822015-10-05T06:41:47Z http://psasir.upm.edu.my/id/eprint/13582/ Chemical weathering of new pyroclastic deposits from Mt. Merapi (Java), Indonesia. Fiantis, Dian Nelson, Malik Van Ranst, Eric Jusop, Shamsuddin Qafoku, Nikolla P. The Java Island, Indonesia with abundant amount of pyroclastic deposits is located in the very active and dynamic Pacific Ring of Fires. Studying the geochemical weathering indices of these pyroclastic deposits is important to get a clear picture about weathering profiles on deposits resulting from the eruption of Mt. Merapi. Immediately after the first phase of the eruption (March to June 2006), moist and leached pyroclastic deposits were collected. These pyroclastic deposits were found to be composed of volcanic glass, plagioclase feldspar in various proportions, orthopyroxene, clinopyroxene, olivine, amphibole and titanomagnetite. The total elemental composition of the bulk samples (including trace elements and heavy metals) was determined by wet chemical methods and X-ray fluorescence (XRF) analyses. Weathering of the pyroclastic deposits was studied using various weathering indices. The Ruxton ratio, weathering index of Parker, Vought resudual index and chemical index of weathering of moist pyroclastic deposits were lower than those of the leached samples, but the alteration indices (chemical and plagioclase) were slightly higher in the moist compared to the leached pyroclastic deposits. Springer Verlag 2009 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/13582/1/Chemical%20weathering%20of%20new%20pyroclastic%20deposits%20from%20Mt.pdf Fiantis, Dian and Nelson, Malik and Van Ranst, Eric and Jusop, Shamsuddin and Qafoku, Nikolla P. (2009) Chemical weathering of new pyroclastic deposits from Mt. Merapi (Java), Indonesia. Journal of Mountain Science , 6 (3). pp. 240-254. ISSN 1672-6316; ESSN: 1993-0321 10.1007/s11629-009-1041-3 English
institution Universiti Putra Malaysia
building UPM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Putra Malaysia
content_source UPM Institutional Repository
url_provider http://psasir.upm.edu.my/
language English
English
description The Java Island, Indonesia with abundant amount of pyroclastic deposits is located in the very active and dynamic Pacific Ring of Fires. Studying the geochemical weathering indices of these pyroclastic deposits is important to get a clear picture about weathering profiles on deposits resulting from the eruption of Mt. Merapi. Immediately after the first phase of the eruption (March to June 2006), moist and leached pyroclastic deposits were collected. These pyroclastic deposits were found to be composed of volcanic glass, plagioclase feldspar in various proportions, orthopyroxene, clinopyroxene, olivine, amphibole and titanomagnetite. The total elemental composition of the bulk samples (including trace elements and heavy metals) was determined by wet chemical methods and X-ray fluorescence (XRF) analyses. Weathering of the pyroclastic deposits was studied using various weathering indices. The Ruxton ratio, weathering index of Parker, Vought resudual index and chemical index of weathering of moist pyroclastic deposits were lower than those of the leached samples, but the alteration indices (chemical and plagioclase) were slightly higher in the moist compared to the leached pyroclastic deposits.
format Article
author Fiantis, Dian
Nelson, Malik
Van Ranst, Eric
Jusop, Shamsuddin
Qafoku, Nikolla P.
spellingShingle Fiantis, Dian
Nelson, Malik
Van Ranst, Eric
Jusop, Shamsuddin
Qafoku, Nikolla P.
Chemical weathering of new pyroclastic deposits from Mt. Merapi (Java), Indonesia.
author_facet Fiantis, Dian
Nelson, Malik
Van Ranst, Eric
Jusop, Shamsuddin
Qafoku, Nikolla P.
author_sort Fiantis, Dian
title Chemical weathering of new pyroclastic deposits from Mt. Merapi (Java), Indonesia.
title_short Chemical weathering of new pyroclastic deposits from Mt. Merapi (Java), Indonesia.
title_full Chemical weathering of new pyroclastic deposits from Mt. Merapi (Java), Indonesia.
title_fullStr Chemical weathering of new pyroclastic deposits from Mt. Merapi (Java), Indonesia.
title_full_unstemmed Chemical weathering of new pyroclastic deposits from Mt. Merapi (Java), Indonesia.
title_sort chemical weathering of new pyroclastic deposits from mt. merapi (java), indonesia.
publisher Springer Verlag
publishDate 2009
url http://psasir.upm.edu.my/id/eprint/13582/1/Chemical%20weathering%20of%20new%20pyroclastic%20deposits%20from%20Mt.pdf
http://psasir.upm.edu.my/id/eprint/13582/
_version_ 1643825375011143680
score 13.211869

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