YUDIANTORO, DWI .FITRI. and muzani, moch (2006) Grain size Analysis of Pyroclactic flows Merapi Volcano Central Java - Indonesia. JURNAL GEOLOGI. pp. 164-175. ISSN 979-8918-53-3
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Abstract
Merapi represent a nature glamour amazing with the trapeze top opening up at west. this volcano often times vomit the heat material , such as dusty rain and hot sand, blast of pyroclastic flows and rock fall of lava. the eruption cycle is short enough that is about 2 - 7 year. Merapi needs special attention. because in every happened by the eruption will menace human being at least 40.000 people. pyroclastic flows Often generate disaster. Apart of this gliding sediment can reach the radius more than 10 km with the tenperature more than 600 c and have speed about 300 km /hour. this hot material in the form of dust and sand, the grain size is about 4 - 0.5 mm. Grain size analysis of pyroclastic flows which is taken away from area is near by eruption center till to the slope. showing pattern bimodal,tge grain size is 4 mm and 0.250 mm, its mean in the grain size is unsorted. This sediment is effect of process the precipitation by turbulence.
| Item Type: | Article |
|---|---|
| Subjects: | Q Science > QE Geology |
| Divisions: | Faculty of Engineering, Science and Mathematics > School of Engineering Sciences |
| Depositing User: | dwi fitri yudiantoro |
| Date Deposited: | 12 Mar 2018 07:24 |
| Last Modified: | 12 Mar 2018 07:24 |
| URI: | http://eprints.upnyk.ac.id/id/eprint/14612 |
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