peninjauan lokasi pos Gunungapi sehubungan dengan adanya rencana pembangunan Pos Gunungapi di daerah Sumatra Utara dan Sumatra Selatan, dilakukan oleh penulis dari tanggal 23 September sampai 18 Oktober 1981, atas biaya dari Proyek P3GV anggaran th. 1981/1982.
Tanggal 20 November , T. Situmorang, Djaja Sumpena dan penulis ditugaskan ke G. Dempo, Sumatera Selatan, maksudnya ialah untuk mengumpulkan data data letusan dan melakukan pemeriksaan puncak - puncaknya, sehubungan dengan berita yang dimuat dalam beberapa suart kabar. G. Dempo adalah gunungapi tertinggi di Sumatera Selatan yaitu 3173 meter di atas permukaan laut atau 2900 meter di atas dataran …
Laporan ini merupakan kumpulan ihtisar kegiatan gunungapi di Jawa dan Sumatra. Penyusunannya mengalami kelambatan karena adanya beberapa hambatan diantaranya penghitungan gempa, anali-sa gempa dan pengumpulan datanya
In January this volcano showed increasing activity. On the 22nd, 06. 15 loc, time, B crater emitted rather thick white smoke with strong gas pressure until 300 meters high. This phenomenon lasted almost continuosly from morning until evening. A moderate eruption took place at C crater on the 30th, discharging thick turbulent black ash cloud with strong pressure untill 500 meters high.
The tectonic earthquakes may cause an increase in volcanic activity due to stress change. Volcano eruption is driven by internal and external forces. The initiating mechanisms of volcanic eruptions commonly include buoyancy, differentiation and vesiculation, injection of hot mafic magma into cooler evolved resident magma.
In the viewpoint of energy resource interest, recently, the generation potential interest of oil shales, particularly as an oil source, has been considered significantly as a new unconventional energy source. Some time ago, research of oil shales revealed many of the factors controlling its information and diagenesis. Most such research has considered the main source of oil and condensate. Oil …