ECONOMIC MINERAL DEPOSITS

Edisi

THIRD EDITION

ISBN/ISSN

0-471-08228-7

Deskripsi Fisik

COVER COKLAT, TEXT DAN GAMBAR HITAM PUTIH, 593 HAL

Judul Seri

-

No. Panggil

PMB 553 JEN e

The Debris Flows or Ladu's of the Merapi, Central Java In 1930

The wedusgenbels originated because big amounts of gas-rich, but toughliquid magna were ejected, came down along the volcano slope and landed in the very deep ravines, which are situated in the mountain foot on ca. 1400 na.s. Due to their great mobility they have still covered considerable distances in the terrain gullion. It is striking through which sharp turns (portrait 7, 8 and 10), particu…

The Eruption of the Merapi, Central Jawa In 1930

According daily reports from a mantrie-observer at Haron, during the first half of November 1930 there was many white vapour forning on the top of the Herapi, but nearly everyday he reported, that no stone avalanches were heard.

A few Things on the Eruption of the Merapi In 1930

The breach in the f flank did not originate at once, but in several phases. At the time the though liquid lava looked for a way to the surface, she found the former entrances janned. The canal, through which the lava of the W plug came up and which during aruption erupti phase of 1920 21 still served as way out, was closed now. During the rest period of a few years, the lava han been actually s…

The Paroxysm Phenomena of Merapi Volcano Eruption In 1930

By the paroxismal phenomena on December 18 and 19, 1930 in the W wall of the mountain summit a breach originated with a length of 1350 π. This reached an elevation of 2150 a downwards and near the summit it was about 200 m in width. A big part of the old domes on the summit, including the lavastream of 1922 has disappeared.

Laporan Lapangan Penjajakan Pengukuran Kubah Lava Baru G.Semeru, Dalam Rangka…

Pengukuran kubah lava ini bertujuan untuk mengetahui volum pen-dekatan. Penulis memberi istilah volum pendekatan disini, karena berdasarkan atas sifat pengukuran pengukurannya, antara lain s a. pengukuran puncak kubah lava baru dengan cara aanpeilingen" jarak jauh dari dua titik totap (titik pengamatan) G. Sasur dan Sumberbulus (PANDI. K., 1977). b. disesuaikan dengan seket dari potret ba…

Zuverlassigkeit Und Wirtschaflichkeh Einfacher Geophysikalischer Unitersuchun…

Das Interbase, das den Erfolgen, entsprechend den geophysikali-schon Untersuchungsmethoden in lotator Zoit in vorgronsertem Um-fange entgegengebracht wird, verteilt sich nicht gleichmässig sur alle zur Zeit zur Anwendung kom onden Methoden; besonders einige elektrische Verfahren, die oino vereinfachte wirtschaftlich vortei hafte Arbeitsweise vortäuschen, scheint man besonders vorzusiehen

The Eruptions In Kawah Baru, G.Papandayan In 1924, The Activity In Kawah Nang…

The eruptions, which in the course of 1924 took place in Kavah Baru, were all of relative short duration. In many cases the activity was restricted to the geyserlike spouting-up of mud from one of the crater openings, which in the course of 1923 were born. Sometines also new craterlats were formed, or except mud also stones were ejected. Naturally the gaspressure at lastnaned eruptions was much…

Semeroe De Werking Van Den Semeroe En De Verplaatsing Van Zyn Krater

Ten einde een juiste beeld te krijgen van werkingvan den Semerce is de onderstaande, lijst en grafiek (Plaat ) samengesteld uit de geschriften welke ter be-schikking staan. Daaruit blijkt niet, dat de vulkaan voort-durend gewekt heeft, wel echter dat hij herhaaldelijk uitbars-tingen heeft vertoond. Zeer zeker is de lijst onvolledig en de eruptieve werking telkens van langer duur geweest, dan hi…

De Lemongan

Zoowel Junghuhn als Fennema brengen een lijst van uit-barstingen, welke laatste tot 1885 reikt en hier met enkele toevoegingen is overgenomen. Fennema was ook de eerste, die met bewustzijn van lavastroomen sprak en het bestaan van gloed-wolklawinen aannam. De Lemongan behoorde tot de vulkanen waar-van bericht werd, dat hij voortdurend werkte. Dit blijkt even-min als bij den Semeroe het geval te…