Ditapis dengan
Laporan Pengamatan Visual Kegiatan G. Marapi September 1985
Pengamatan visual kegiatan G. Marapi dilakukan secara tetap dari Pos PGA Batu Palano dan Bukittinggi. Untuk pengamatan visual lebih baik dilakukan dari Pos Pengamatan di Bukittinggi. Yang dapat diamati dari Pos adalah kegiatan solfatara di Kepundan Tuo, Kepundan Bungo, Kepundan B, Kepundan C, Kepundan Verbeek, dan Kepundan Bongsu.
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- Deskripsi Fisik
- 2 hlm
- Judul Seri
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- No. Panggil
- PVG A.85-11
Laporan Pengamatan dan Penyelidikan Seismik G. Marapi Desember 1985
G. Marapi adalah salah satu gunungapi aktif Indonesia di Sumatera Barat. Dalam sejarah kegiatan yang diketahui belum pernah terjadi korban jiwa akibat letusannya. G. Marapi diamati secara tetap dari Pos PGA Batu Palano dan Bukittinggi.
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- 3 hlm
- Judul Seri
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- No. Panggil
- PVG A.85-10
Laporan Pemeriksaan Kawah dan Pengukuran Suhu Solfatara G. Sorikmarapi Desemb…
G. Sorikmarapi merupakan salah satu gunungapi aktif (tipe A) yang terletak di Kecamatan Kotanopan, Kabupa- ten Tapanuli Selatan, Sumatra Utara. Tinggi puncaknya 2145 m di atas muka laut. Dalam sejarah kegiatannya, telah meletus pada tahun 1830, 1879, 1892, 1893, 1917 dan 1970.
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- 7 hlm; gmbr
- Judul Seri
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- No. Panggil
- PVG A.85-8
Laporan Kegiatan Pemetaan Daerah Bahaya G. Rajabasa di Daerah Lampung
Dalam rangka melaksanakan Program Pelita IV tahun I, pada 10 Desember 1984 telah diberangkatkan satu regu pemetaan daerah bahaya gunungapi dari Seksi Pemetaan Daerah Bahaya Gunungapi, Sub Direktorat Pemetaan Gunungapi, Direktorat Vulkanologi ke Gunung Rajabasa selama 60 (enam puluh) hari.
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- Deskripsi Fisik
- 85 hlm; gmbr; peta
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- No. Panggil
- PVG A.85-7
Pumiceous Tuff of the Eruption of Krakatau in 1883 on Rakata Islands and its …
Pumiceous tuff deposits of the 1883 Krakatau on the Rakata have been studied in terms of their mineralogical, physico-chemical, and physical properties. Two kinds of pumiceous tuff deposits were identified having similiar vitric type and hypersthene-augite association with few green hornblende and olivine.
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- 22 hlm
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- PVG A.83-49
The Soils on the Krakatau Islands
After eruption of 1883, studies on the development or the recovery of natural ecosystem on the Krakatau Islands, especially those of vegetation and fauna, have been of great interest to many scientists. However, as far as we know, only a few studies on the soils were carried out (Ernst, 1908; Van Baren, 1931; Newsome, 1982).
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- 19 hlm
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- No. Panggil
- PVG A.83-46
Earlier Eruptive Activities of Krakatau in Historic Time and During the Quate…
The activities of Anak Krakatau are found to be phenomena of eruptive cycles in the hythms of a long-periodic developmental growth. Before the present-day activity of Anak Krakatau which started in December 1927, we know of earlier outburts of Krakatau in 1883, in 1680 and of the 5th century in the year 416 A.D.
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- Deskripsi Fisik
- 31 hlm
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- No. Panggil
- PVG A.83-43
Preliminary Notes On The Subsurface Geology In The Vicinity Of The Krakatau I…
Recent shallow seismic profilling survey by the Geological Research and Development Centre in cooperation with the Navy (AL) resulted in subsurface bottom sections which give for the first time an insight on the subsurface geology in the vicinity of the Krakatau-group (Akil and Lubis, S., 1983; Sukardjono, 1983).
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- 49 hlm
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- No. Panggil
- PVG E.83-38
Geomagnetic Survey at Two Volcanic Regions in Indonesia Krakatau Caldera and …
Various discussions have been made by many authors as respects the eruption mechanism of Krakatau caldera (e.g. Williams, 1941; Yokoyama, 1981; Self and Rampino, 1982; Yokoyama, 1982). Accumulation of geophysical data may provide important information to clarify the problem. Yokoyama and Hadikusumo (1969) have already established the gravity stations Krakatau Islands. The low residual anomalies…
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- Deskripsi Fisik
- 8 hlm; tabel; gmbr; peta
- Judul Seri
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- No. Panggil
- PVG A.83-37
Formation of Volcanic Depressions - Krakatau and Toba
The gravity survey on Krakatau Islands was first carried out by means of a land gravimeter in 1968 ( Yokoyama and Hadikusumo, 1969) and was supplemented by the present authors in 1982. The gravity points on the islands has reached 40 in number.
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- Deskripsi Fisik
- 4 hlm
- Judul Seri
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- No. Panggil
- PVG A.83-32
Karya Umum 
Filsafat 
Agama 
Ilmu-ilmu Sosial 
Bahasa 
Ilmu-ilmu Murni 
Ilmu-ilmu Terapan 
Kesenian, Hiburan, dan Olahraga 
Kesusastraan 
Geografi dan Sejarah