1887

Abstract

Summary

Geophysical investigation with AMT method conducted based on the existence of the surface manifestations on Candi Gedongsongo area and appear to identify the structure of the suspected fault as a weak zone both as recharge area and the emergence of the manifestation zone. This investigation was done on the post volcanic belt of older subduction zone that have significant geothermal gradient by the depth AMT data acquisition was done with Stratagem Unit 26716–01 Rev D by Geometrics that calculate true resistivity with its inversion then modeled on 2D model to identify the fault structure and 3D model to shows the caprock geometry. As a result there are 2 faults shows that has strike and dip of N350oE / 60o that continues from north to south and the second fault shown on P1 but the strike and dip can not be known. The caprock identified on high resistivity value ranges between 1000 -100,000 ohm.m with andesite lithology lying under elevation of 1000 m.

Loading

Article metrics loading...

/content/papers/10.3997/2214-4609.201800401
2018-04-09
2024-04-24
Loading full text...

Full text loading...

References

  1. Bemmelen, R.W. Van
    , 1949, The geology of Indonesia. General geology of Indonesia and Adjacent Archipelago. 2nd Edition, Martinus Nilhoff, the Haque, Netherlands, LA, 555–567
    [Google Scholar]
  2. Budiardjo, B., Nugroho and Budihardi, M.
    , 1997, Resource Characteristics of the Ungaran Field, Central Java, Indonesia. Proceeding of National Seminar of Human Resources Indonesian Geologist, Fakultas Teknologi Mineral, Universitas Pembangunan Nasional “Veteran”, Yogyakarta
    [Google Scholar]
  3. Gaffar, EdyZ., dkk
    , 2007, Studi Geofisika Terpadu di Lereng Selatan G. Ungaran, Jawa Tengah, dan Implikasinya terhadap Struktur Panasbumi, Jurnal Meteorologi dan Geofisika, Vol. 8 No.2 November 2007: 101 – 119
    [Google Scholar]
  4. Hamilton, W.B.
    , 1979, Tectonics of the Indonesian Region. Professional Paper 1078, U.S Geol. Surv., Washington, DC, (1979), 345 p.
    [Google Scholar]
  5. Rezky, Yuanno, dkk
    , 2012, Sistem Panas Bumi dan Model Konseptual Daerah Panas Bumi Gunung Ungaran, Jawa Tengah. Buletin Sumber Daya Geologi Volume 7 Nomor 3 - 2012, hal 109–117
    [Google Scholar]
  6. Setyawan, Agus, dkk
    , 2005, Estimasi Pola Penyebaran Resistivitas Bawah Permukaan dengan Metode CSAMT (Studi Kasus Nglimut – Medini, Gunung Ungaran), Berkala Fisika Vol.8, No.2, April 2005, hal 33–36
    [Google Scholar]
  7. Simpson, Fiona and Bahr, Karsten
    , 2005, Practical Magnetotellurics. Cambridge University Press.
    [Google Scholar]
  8. Syabaruddin
    . 2004,.Pemetaan Fasies Vulkanik Pada Daerah Prospek Panasbumi Gunung Ungaran dan Sekitarnya, Kec. Ambarawa, Kab. Semarang, Jawa Tengah, Skripsi pada Jurusan Teknik Geologi, FT. UGM, Yogyakarta
    [Google Scholar]
  9. Telford, W, M. GeldartL, P, and SheriffR. E.
    , 1990, Applied Geophysics2nd Edition, Australia: Cambridge University Press
    [Google Scholar]
  10. Thanden, R.E., Sumardirdja, H., Richards, P.W., Sutisna, K, and Amin, T.C.
    , 1996, Geological Map of the Magelang and Semarang sheet, Central Java, scale 1:100.000, Geological Research and Development Centre, Bandung
    [Google Scholar]
  11. Unsworth, M.
    , 2008, Theory of Magnetotelluric Over 1D Earth. University of Alberta, Canada
    [Google Scholar]
  12. Verstappen, H
    , Th.. 2000. Outline of the Geomorphology of Indonesia: A Case Study on Tropical Geomorphology of a Tectogene Region (with a Geomorphological Map 1:5000000). International Institute for Aerospace Survey and Earth Science, Netherlands.
    [Google Scholar]
  13. Zen, M.T., Syarif, M.A., Simatupang, S.H., dan Juniarto, G.
    , 1983, Tektogenesa Gaya Berat dan Daur Magma Sepanjang Deretan Gunungapi: Ungaran – Merapi di Jawa Tengah, Proceeding PIT XII IAGI, Jakarta.
    [Google Scholar]
http://instance.metastore.ingenta.com/content/papers/10.3997/2214-4609.201800401
Loading
/content/papers/10.3997/2214-4609.201800401
Loading

Data & Media loading...

This is a required field
Please enter a valid email address
Approval was a Success
Invalid data
An Error Occurred
Approval was partially successful, following selected items could not be processed due to error