It has long been realized that the mineral assemblages of igneous and metamorphic rocks may reflect the approach of a rock to chemical equilibrium during its formation. However progress in the application of chemical thermodynamics to geological systems has been hindered since the time of bowen and the other early physical-chemical petrologysts by the recurring quandary of the experimental geol…
G. Gamalama (+1715 m), merupakan salha satu gunungapi aktif yang berada di Maluku Utara, berjari-jari 4,25-6,8 km dengan luas lk. 105 km. Secara administratif terletak di wilayah Kota Ternate (Pulau Ternate), Provinsi Maluku Utara, geografisnya terletak pada 0°48'00' LU dan 127° 19'30" BT , Status kegiatan vulkanik G. Gamalama sejak 4 Desember 2011 dianikkan dari waspada (level II) menjadi s…
Sejak tanggal 5 Agustus 2009 G. Ibu berstatus Siaga (level III). Hingga saai ini letusan abu dan hembusan masih sering terjadi. Pada akhir Maret 2010, berdasarkan informasi penduduk sekitar G. Ibu, terjadi guguran dari bibir kawah G. Ibu. Dalam upaya mitigasi, Tim Tanggap Darurat melakukan pemantauan kegiatan G. Ibu secara lebih intensif lagi.
Sejak tanggal 5 Agustus 2009 G. Ibu berstatus Siaga (level III). Hingga saat ini letusan abu dan hembusan masih sering terjadi. Pada akhir Maret 2010, berdasarkan informasi penduduk sekitar G. Ibu, terjadi guguran dari bibir kawah G. Ibu. Dalam upaya mitigasi, Tim Tanggap Darurat melakukan pemantauan kegiatan G. Ibu secara lebih intensif lagi.
During the past century, and most par-ticularly in the decades following World War II there has been a tremendous ex-pansion of the impact of science on everyday life. Explanations of scientific phenomena, particularly those of catastrophic effect on society, are given at all levels of education, science dominates the news media, most households make use of products that are the result of appli…
Fluid mechanics is a study of the behaviour of fluid at rest and in motion. The study takes into account the various properties of fluids and their ef-fects on the resulting flow patterns, in addition to the forces acting between the fluid and its boundaries. To explain observed fluid behaviour and to pre-diet fluid behaviour, the study and application of fundamental laws (conserva-tion of mass…
Kebutuhan untuk mengetahui medan geomagnet utama tanpa pengaruh faktor eksternal sangat besar bagi para surveyor pertambangan, pengguna atau penyedia navigasi satelit dan ilmuwan-ilmuwan yang mempelajari cuaca antariksa atau hubungan matahari bumi. Oleh karena itu dibuatlah suatu model geomagnet yang disepakati secara internasional yang dikenal sebagai model IGRF (International Geomagnetic Refe…
Maps are graphic representations of the cultural and physical environment. Two subclasses of maps exist: general-purpose (reference) maps and thematic maps. This text concerns the design of the thematic map, which shows the spatial distribution of some geographical phenomenon. Map scale, or the amount of reduction of the real world, is critical to the cartographer, since it determines selection…
To geologist, the field is where rocks or soils can be observed in place, and field geology consist of the methods used to examines and interpret structures and materials at the outcrop. Field studies are primary means of obtaining geologic knowledge. Some studies may be as simple as visiting a single outcrop or quarry, making notes and sketches on the relations between certain rocks, and colle…