Preprint Article Version 1 This version is not peer-reviewed

Determination of Material Characteristics and Shear Wave Velocity of Volcanic Sediment Layer of Mount Samalas Using MASW Technique

Version 1 : Received: 6 September 2018 / Approved: 6 September 2018 / Online: 6 September 2018 (13:16:56 CEST)

How to cite: Hiden, H.; Ardianto , T..; Minardi , S..; Taurida , A..; Muhajirah, M. Determination of Material Characteristics and Shear Wave Velocity of Volcanic Sediment Layer of Mount Samalas Using MASW Technique. Preprints 2018, 2018090116 (doi: 10.20944/preprints201809.0116.v1). Hiden, H.; Ardianto , T..; Minardi , S..; Taurida , A..; Muhajirah, M. Determination of Material Characteristics and Shear Wave Velocity of Volcanic Sediment Layer of Mount Samalas Using MASW Technique. Preprints 2018, 2018090116 (doi: 10.20944/preprints201809.0116.v1).

Abstract

The application of geophysical methods for the characterization of geomorphologic subsurface features has become very popular in recent years. Convential geophysical applications on undifferentiated and weathered slopes have been less effective. Multichannel analysis of surface waves (MASW) is a new hope for the solution of the problem. MASW methods was used to the first step in order to reconstruct the ancient eruption of Mount Samalas. MASW was applied to the remnants of ancient volcanic sediment on Lombok Island to determine the physical and physical characteristics of seismic subsurface features. This paper is also discussion the application's capabilities of the MASW method on undifferentiated and weathered volcanic deposits on the slope area and classified them. The results of the research show that MASW technique is powerful in characterizing and delineating the stratum of the layers of undifferentiated and weathered volcanic precipitation areas. MASW is able to predict subsurface structures, especially for shallow and thin layers and presenting site class information for internal structure (vertical resolution). Based on S wave velocity structure, undifferentiated and weathered volcanic layer, genes are classified into site class C, D, and E. In the future, this method will completed with combination of other geophysical method and parameters variation (frequency and spaces) for isopach mapping of volcanic sediment and then analysis of ancient volcanic eruption dynamics.

Subject Areas

undifferentiated and wheathered deposits, thin layers, vs characterization, MASW

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