RAHMAN, ARIF (2023) ANALISIS PENERAPAN FILTER SIMPLE MOVING AVERAGE PADA DATA RESISTIVITAS UNTUK MENGIDENTIFIKASI PERSEBARAN ANDESIT DI DAERAH JEPARA. Other thesis, UPN "Veteran" Yogyajarta.
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Abstract
ABSTRAK
ANALISIS PENERAPAN FILTER SIMPLE MOVING AVERAGE PADA
DATA RESISTIVITAS UNTUK MENGIDENTIFIKASI PERSEBARAN
ANDESIT DI DAERAH JEPARA
Oleh:
Arif Rahman
115.190.041
Penggunaan material bahan bangunan yang tidak efektif dapat mengurangi
kekuatan bangunan. Dalam mengatasi hal ini, diperlukan material yang baik agar
bangunan dapat berdiri dengan kokoh. Salah satu material bangunan yang dapat
digunakan adalah batuan andesit. Batuan andesit merupakan salah satu jenis
bataun beku yang lazim digunakan sebagai bahan bangunan. Salah satu area
penambangan batuan andesit ini berada di daerah Jepara, Jawa Tengah.
Penelitian geofisika resistivitas dilakukan di dua lokasi yaitu “Jepara 1”
dan “Jepara 2” masing-masing 5 lintasan dan 4 lintasan dengan panjang lintasan
235 m menggunakan konfigurasi Wenner-Alpha dan Wenner-Schlumberger.
Pengolahan data dilakukan pada Microsoft Excel menggunakan filter Simple
Moving Average lalu diinversi pada software Res2dinv sehingga menghasilkan
penampang resistivitas 2D. Penelitian ini juga menghasilkan peta slicing untuk
melihat persebaran batuan Andesit pada kedalaman tertentu.
Berdasarkan hasil analisis diketahui bahwa penggunaan filter Simple
Moving Average 3 (SMA 3) kurang cocok untuk digunakan dalam
mengidentifikasi persebaran batuan Andesit di lokasi penelitian. Hal ini
dikarenakan persebaran resistivitas di daerah penelitian memiliki banyak noise
sehingga noise-noise tersebut ketika di-filter menggunakan SMA 3 akan
mengalami perubahan nilai resistivitas dan pengurangan jumlah data sehingga
dapat mempengaruhi interpretasi.
Kata kunci: Andesit, Moving Average, Wenner-Alpha, Wenner-Schlumberger,
Resistivitas
ABSTRACT
ANALYSISIS OF THE APPLICATION OF SIMPLE MOVING AVERAGE
FILTER FOR RESISTIVITY DATA TO IDENTIFY THE DISTRIBUTION
OF ANDESITE IN JEPARA
Arif Rahman
115.190.041
Ineffective use of building materials can reduce the strength of the
building. In overcoming this, good materials are needed so that the building can
stand firmly. One of the building materials that can be used is andesite rock.
Andesite rock is one type of igneous brick that is commonly used as a building
material. One of the andesite rock mining areas is in the Jepara area, Central
Java.
Resistivity geophysical research was conducted in two locations namely
"Jepara 1" and "Jepara 2" each 5 passes and 4 passes with a track length of 235
m using the Wenner-Alpha and Wenner-Schlumberger configurations. Data
processing was carried out in Microsoft Excel using the Simple Moving Average
filter and then converted in Res2dinv software to produce 2D resistivity cross
sections. This research also produced a slicing map to see the distribution of
Andesite rocks at a certain depth.
Based on the results of the analysis, it is known that the use of the Simple
Moving Average 3 (SMA 3) filter is not suitable for use in identifying the
distribution of Andesite rocks at the research site. This is because the distribution
of resistivity in the research area has a lot of noise so that these noises when
filtered using SMA 3 will change the resistivity value and reduce the amount of
data so that it can affect the interpretation.
Keywords: Andesite, Moving Average, Wenner-Alpha, Wenner-Schlumberger,
Resistivity
| Item Type: | Thesis (Other) |
|---|---|
| Uncontrolled Keywords: | Andesite, Moving Average, Wenner-Alpha, Wenner-Schlumberger, Resistivity |
| Subjects: | Q Science > QE Geology |
| Divisions: | Faculty of Engineering, Science and Mathematics > School of Engineering Sciences |
| Depositing User: | Eko Yuli |
| Date Deposited: | 13 Oct 2023 06:04 |
| Last Modified: | 13 Oct 2023 06:04 |
| URI: | http://eprints.upnyk.ac.id/id/eprint/37962 |
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