Bulletin of Scientific Contribution

ABSTRACT

Salak Mount is a volcanic complex located in the south of Jakarta. This mountain area is included in the area of Sukabumi Regency and Bogor Regency, West Java. The peak part is a forest area whose management of the forest area was originally under the Perhutani Public Corporation Forest Management Unit (KPH) Bogor, but since 2003 it has been an expansion area of the Gunung Halimun National Park, and is managed as Gunung Halimun-Salak National Park. This research begins with the analysis of topographic maps to determine the geomorphological characteristics of the study area. These geomorphological characteristics include river flow patterns, land use and slope. At this stage it can be distinguished as many as nine recognizable geomorphological units. The next stage is field observation to find out the surface geological conditions of the study area. at this stage two stratigraphic cross sections were made which passed the Cihideung and Ciparikalih. From the results of geomorphological analysis, the research area can be divided into nine geomorphological units which are compiled based on their morphographic, morphometric and morphogenetic characteristics. Two stratigraphic cross sections through the Cihideung River and Ciparikalih River trajectories are made based on field observations with a measured section method. In both trajectories, there are six volcanic facies that make up the research area..

Keywords: Salak Mount, Cibadak Sub Das, Volcanic Facies, Geomorphology

ABSTRACK

Gunung Salak merupakan kompleks gunung berapi yang terletak di selatan Jakarta. Kawasan rangkaian gunung ini termasuk ke dalam wilayah Kabupaten Sukabumi dan Kabupaten Bogor, Jawa Barat. Bagian puncaknya merupakan kawasan hutan yang pengelolaan kawasan hutannya semula berada di bawah Perum Perhutani Kesatuan Pemangkuan Hutan (KPH) Bogor, tetapi sejak 2003 menjadi wilayah perluasan Taman Nasional Gunung Halimun, dan dikelola sebagai Taman Nasional Gunung Halimun-Salak. Penelitian ini diawali dengan analisis peta topografi untuk mengetahui ciri geomorfologi daerah penelitian. Ciri ciri geomorfologi tersebut diantarana pola pengaliran sungai,  tata guna lahan, serta kemiringan lereng. Pada tahapan ini dapat dibedakan sebanyak sembilan satuan geomorfologi yang dapat dikenali. Tahapan selanjutnya adalah pengamatan lapangan untuk menetahui kondisi geologi permukaan daerah penelitian. pada tahapan ini dibuat dua buah penampang stratigrafi yang melewati sub Das Cihideung dan sub DAS Ciparikalih. Dari hasil analisis geomorfologi, daerah penelitian dapat dibagi menjadi sembilan satuan geomorfologi yang disusun berdasarkan ciri morfografi, morfometri dan morfogenetiknya. Dua buah penampang stratigrafi melalui lintasan Sungai Cihideung dan Sungai Ciparikalih dibuat berdasarkan pengamatan lapangan dengan metoda penampang terukur. Pada kedua lintasan tersebut dapat diketahui enam fasies vulkanik yang menyusun daerah penelitian.

Kata Kunci: Gunung Salak, Sub Das Cibadak, Fasies Vulkanik, Geomorfologi.

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