Efforts to compile a more comprehensive bibliography on the ill- famed Krakatau volcano are presently more rewarding than in the pre- viously given attsapts (Van Barem, 1931; Brodie, 1982; Da Nova, 1936, 1953; Kusumadinata et al., 1979; Nourn van Padang, 1951; Ongkosongo & Suwardi, 1981; and Soagiarto & Soegiarto, 1983). This because in the last quarter of a century (1960-1984) we are interpret…
Efforts to compile a more comprehensive bibliography on the ill- famed Krakatau volcano are presently more rewarding than in the pre- viously given attsapts (Van Barem, 1931; Brodie, 1982; Da Nova, 1936, 1953; Kusumadinata et al., 1979; Nourn van Padang, 1951; Ongkosongo & Suwardi, 1981; and Soagiarto & Soegiarto, 1983). This because in the last quarter of a century (1960-1984) we are interpret…
Pada tgl. 21 April 1984, penulis ditugaskan ke Pasauran untuk ber gabung dengan Sdr. Sikin dan Hery Supriyatno di Pos Pengamatan G. Krata- tau untuk melakukan pengamatan dan penelitian seismik gunungapi dan pe- ngamatan visual dari Pos tersebut. Mengenai hal yang disebut pertama di- tekankan pada pengumpulan data dari hasil pengamatan sebelumnya dan pada waktu itu. Karena pengamatan memang tela…
Analisia norbuk sari (pollen) membuktikan, bahwa ada tumbuhan yang pernah tumbuh sebelum lotusan 1883. Tumbuhan ini kemudian musnah oleh letusan dahsyat tab. Penghidupan kombali terjadi akibat tumbuhnya tumbuhan baru melalui akar, rhizoma, biji dan spora yang ternyata tersimpan baik dan kemu- dian mendapat kesempatan untuk tumbuh kembali. Dengan demikian Teori Kepunahan Penghidupan Total …
Damas Heren. In dese maand augustus herdenken wij het feit, dat de krakatau vulkaan honderd jaar geleden so'n geweldige uitbarsting heeft genas d das ay over de gahale serald bekend en opgemerkt is geworden. Krakatau.(6.2).
Dalam Agustus ini kita memperingati kenyataan bahwa gunungapi Krakatau seratus tahun yanh lalu telah mengalami letusan begitu dasyat hingga ia diketahui dan menarik perhatian seluruh dunia.
The significant change in seismic activity for an active volcano is closely related to the stage of volcanic activity. Even in the dormancy period, the observation of seicmic activity of a particular volcano is very important to evaluate the status and to anticipate the future behavior. The Volcanological Survey of Indonesia installed triparti- te instruments at the Anak Krakatau and Sertung…
Volcanology is ained at the scientific study of phonomona, which strictly speaking, only refers to manifestations of surface cruptions of molton rock or magna and their related gasos, with the structuros, deposits, and other offects produced thoroby. Until now physiographio descriptions of the Indonesian volcanoos, their eruptions and or porio- dic increased activities, the geomorphological lan…
The activities and magmatic cycles of the Krakatau Volcanic Complex are closely related to the goology and tectonic position of Strait Sunda, which are more related to Sumatra than to Java. The basoment of Strait Sunda consists of ignimbrites and acid tuffs of 0.1 million year old, and the thormal gradient in and around Sunda Strait is about 6.7°C por 100 meter. Tectonically, strait Sundo is a…
Present situation of the Sumatra Island seems to indicate the clockwise rotation of about 40 degrees for Jawa (Fig.1). Ninkovich (1970) proposed a hypothesis that in the Late Cenozoic Sumatra rotated clockwise about 20 degrees and formed the present configuration. Moreover, Sasajima et al (1980) said that after the Triassic until the Early Tertiary, Sumatra should have rotated clockwise by 62.4…