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Temperature Observations at Papandayan Volcano, Extension and Intersity Of Th…
As mentioned, during the observation, extensive temperature observations were carried out. From this on the first place appeared, that within the crater groups of solfatara's and hot springs can be distinguished, which temperature strongly varied. The distribution of the temperatures is for a fixed day (September 2, 1924) given on Plate II. We see from this, that the highest temperature occurre…
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- 14 hml
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- No. Panggil
- PVG E.25-1
The Aquatic Transportation of The Semeru - Products The Wet Danger
of much more importance of the surrounding plains of the Senera is tow aquatic transportaton of the ejected products, the was danger. When we travel the area between Lunajang and Pasirian and the S foot of the volcano till the Kali Glidik, then it becomes clear to anybody which role the aquatic transportation of the Semeru products fulfils in the economic life of the here established populat…
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- 12 hml
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- PVG E.22-3
On Plugforming and The Eruption Character of G. Merapi
The summit of G. Merapi is formed by a lava-plug; a cratershaped decline, such as the most volcanoes possess, is not present. However it is known,-thanks to the many interest, with which the G. Herapi in the pant century obtained, that the volcano in another stage of eruptive activity certainly owed such a cratershaped decline.
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- 10 hml
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- PVG E.21-7
The G. Kelud in 1924
Phenomena which would indicate on an increased activity on the Kelut were not observed during 1924 and in the beginning of 1925. A fow light earthshocks, which were felt in the lowercamp, appeared to be of tectonic origin.
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- 7 hml.; tabel
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- PVG E.24-4
The G. Lamongan
Although several times from the surroundings of the Lamongan nevs arrived on eruptions of the volcano, after further investigation appeared, that the observed abnormal phonomena are not to be ascribed to volcanic activity.
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- 7 hml
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- PVG E.23-2
Excentric Eruptions of G.Lamongan
Of more importance than the flank eruptions are the excentric eruptions, which are fed from a much more deeper lavaniveau than the first mentioned, whereas the breakthrough mostly takes place in the area of the volcano foot. Also excentric eruptions may entirely independently become active fron the main crater, which at flankeruptions is not likely possible. Also the phenomena, with which excen…
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- 15 hml.; tabel
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- No. Panggil
- PVG E.22-1
The Lamongan
At the end of February 1920 by the Sectionhead of the Irrigation at Lumajang was reported, that in that month an abnormal drop of the waterlevel of the Ranu's Klakah and Pakis had taken place. If the Ranu Klakah in normal times always flowed through his nator al outlet, at present it is not like this, as the lake level has drop till 1.5 m below the outlet This even happens during the full W …
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- 11 hml
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- PVG E.21-8
The Old Mantle of G .Merapi(See Plate IIIa and IV)., A Few Considerations On …
As already earlier mentioned the G. Herapi exists of two morphologic clearly to be distinguished parts, an older eastern and a younger western part. From the sunnit of the old ringdike, only a small part remains (see portrait 14), of which the eastern part is named G. Pusunglondon (2694.3 a.s.) and the northern G. Paseban (2679= a.s.). The old volcano mantle of the G. Merapi has grown much more…
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- 9 hml.; tabel
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- PVG E.21-6
Fertility Of The Merapi Products Sand Transportation Of The Neutral Wor…
The spreading of the Herapi products is of a great agrogeologic Importance, as the Merapi products compared with the rocks of other Java volcanoes are extraordinary fosforrich. Only towards one side these products could develop feely, namely in the plane of Solo, whare they border to that of the Lavu. To the S the spreading was stopped by the southern mountains, only in the area of the kali Opa…
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- PVG E.21-5
Wedusgembel Of The Merapi Volcano In 1920
On October 12, 1920 the inhabitants of the most high laying kampungs in the vicinity of the Blongkengravine were surprised by hot dustclouds and were killed by the burns. It appeared inmediately, that there was no outburst at all, as the summit slopes of the Merapi were, as far as they were overgrown in August and September, were still green as before (the reports from news papers concerning th…
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- 9 hml
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- PVG E.21-3
Karya Umum 
Filsafat 
Agama 
Ilmu-ilmu Sosial 
Bahasa 
Ilmu-ilmu Murni 
Ilmu-ilmu Terapan 
Kesenian, Hiburan, dan Olahraga 
Kesusastraan 
Geografi dan Sejarah