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…
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…
Krakatau voleano which is located at Sunda Strait, Indonesia, catastrophic The is a wellknown volcano in the world, because of its eruption in August 1883, and submarine caldera came into existence. Relatively in a short time, fortyfour years later, in Docamber 1927, ronewed activity was begun, started by submarine oxplosions. eruption was a commencement for the first periode of a now cycle of …
Four pedons of Brown Soils originating from material prior to the 1883 Krakatau eruption have been identified in Rakata, exposed or buried under the thick layer of pumiceous anh. Three of those pedons have been studied in terms of their physico-chemiopl proper ties, cand and clay mineralogy. The results indicate that the Brown Soils have been developed from basalto-andesitic volcanic motoria…
A remote sensing system for detecting chlorophyll concentration have been developed by DFVLR in cooperation with LAPAN. During Indonesian Gorman joint experiment on Septomber 1982, and in connection with centenary of nount Krakatau eruption Sunda which are selected trialing the sonsor. Strait is one of test aren along the line from Morak to Krakatau is presented in this paper.
Results on the studies of biotic communities on coastal area of Sumur are in part presented in separate papers in this symposium (see Kartawinata et al. 1983a, b; Hartoto et al, 1983; Sujatno et al. 1983; Wowor et al. 1983). The present paper is cocerned with the results of the inventory of plant. species cultivated in homegardens in the village of Sumur, Banten, West Java.
Volcanic eruptions may affect the socio cultural life of societies which happen to be in the neighbourhood of volcanoes. This is known from some parts of the world where such disasters happened and were recorded. There also historically recorded eruptions in Indonesia. For example in the Nagarakrtagana, a panygeric written by the court poet Prapance for his Lord, King Hayam Wuruk of Majapahi…
Sesuai dengan rentjana penulis, seperti diuraikan dalan karangannja jang lalu berdjudul "G. Tangkuban Perahu. Riwajat letusan dan bahaja-nja berdasarkan Peta dan Pustaka, sela ma bulan Agustus 1969, telah dilakukan penelitian dilapangan sekitar G. Tangkuban Perahu jang dewasa ini sedang menundjukkan gedjala kenaikan kegiatan magmanja.
Dengan adanja kegiatan G. Someru sedjak bulan September 1967 dan peristiwa-peristiwa terdjadinja lahar di Besuk Ko-bokan (K. Redjali) dan K. Glidik, telah diminta oleh Koman-do Pelaksana Penanggulangan Bentjana Alan Djawa Timur di Surabaja, petugas Volkanologi untuk mengadakan survey di G. Semeru,
Indonesia mempunyai gunung api terbanyak di dunia sekitar 129 buah yang artinya 13% dari seluruh gunung api aktif di dunia. Gunung api di Indonesia tersebar di sepanjang sabuk gunung api Indonesia mulai dari kawasan Sumatera, Jawa, Nusa Tenggara dan menerus hingga perairan Maluku dan kawasan Sulawesi Utara.