Determination of ancient volcanic eruption center based on gravity methods (3D) in Gunungkidul area Yogyakarta, Indonesia
Penulis/Author
AGUS SANTOSO (1); Prof. Dr. Sismanto, M.Si. (2); Prof. Dr. Ir. Subagyo Pramumijoyo, DEA., IPU. (4)
Tanggal/Date
2016
Kata Kunci/Keyword
Abstrak/Abstract
Ancient eruption centers can be determined by detecting the position of the ancient volcanic material, it is important to understand the elements of ancient volcanic material by studying the area geologically and prove the existence of an ancient volcanic eruption centers using geophysics gravity method. The measuring instrument is Lacoste & Romberg gravimeter type 1115, the number of data are 900 points. The area 60×40 kilometers, the modeling 3D software is reaching depth of 15 km at the south of the island of Java subduction zone. It is suported by geological data in the field that are found as the following: 1. Pyroclastic Fall which is a product of volcanic eruptions, and lapilli tuff with felsic mineral. 2. Pyroclastic flow with Breccia, tuffaceous sandstone and tuff breccia. 3. Hot springs near Parangwedang Parangtritis. 4. Igneous rock with scoria structure in Parang Kusumo, structured amigdaloida which is the result of the eruption of lava/volcanic eruptions, and Pillow lava in the shows the flowing lava into the sea. Base on gravity anomaly shows that there are strong correlationship between those geological data to the gravity anomaly. The gravblox modeling (3D) shows the position of ancient of volcanic eruption in this area clearly
Rumpun Ilmu
Geofisika
Bahasa Asli/Original Language
English
Level
Internasional
Status
Dokumen Karya
No
Judul
Tipe Dokumen
Aksi
1
Paper 2012 UPN.pdf
[PAK] Full Dokumen
2
Paper 2012 UPN.pdf
[PAK] Full Dokumen
3
Determination of Ancient Volcanic Eruption Based of Regional Gravity Methods in Gunungkidul Area Yogyakarta (1).pdf
[PAK] Cek Similarity
4
Determination of Ancient Volcanic Eruption Based of Regional Gravity Methods in Gunungkidul Area Yogyakarta (1).pdf
