Penelitian ini bertujuan untuk mengkarakterisasi sedimen endapan aluvial berdasarkan analisis granulometri pada daerah Sukarami dan sekitarnya, Kabupaten Lahat, Provinsi Sumatera Selatan. Analisis granulometri dilakukan untuk mengetahui distribusi ukuran butir, parameter statistik sedimen, mekanisme transportasi, serta lingkungan pengendapan pada sistem fluvial. Pengambilan sampel dilakukan pad…
Sand is one of the mineable mineral resources formed through weathering processes, both mechanical and chemical. Ogan Ilir Regency has the potential for sand mining industry due to the presence of the Ogan River. To evaluate the subsurface potential of sand deposits, a geophysical investigation is required, one of which is the geoelectrical method. The 2D resistivity geoelectrical method with W…
The South Sumatra Basin is a basin located in the back arc, which was formed from the interaction between the Sunda Shelf (part of the Asian continental plate) and the Indian Ocean plate. This interaction causes sedimentation of various types of sedimentary rocks, one of which is the Peneta Formation. The Peneta Formation was deposited as a result of the subduction process between the Woyla fra…
Pada daerah Baturaja sangat melimpah jenis batuan sedimen karbonat. Batuan ini berasal dari Formasi Baturaja dan Formasi Gumai dengan jenis batuan mulai dari batugamping kristalin, batugamping terumbu, batugamping klastik, batupasir karbonatan, napal dan batulempung karbonatan. Kondisi ini menarik untuk dilakukannya Analisa diagenesis batupasir Formasi Gumai bertujuan untuk melihat proses apa s…
Research conducted at PT. Allied Indo Coal Jaya, City of Sawahlunto with open pit mining and underground mining. Underground mining is synonymous with subsidence risk caused by reduced soil carrying capacity due to excavation. The potential for instability around underground mine openings requires special handling, especially the issue of safety factors and buffer planning to ensure worker safe…
Validasi metoda CV-AAS (Cold Vapour Atomic Absorption Spectrometry) untuk analisis total merkuri pada sampel sedimen telah dilakukan. Parameter validasi yang di uji antara lain kisaran linieritas, koefisien korelasi (r), limit deteksi (LOD), limit kuantitasi (.LOQ), presisi, dan akurasi. Selain itu, juga ditentukan ketidakpastian pengukuran. Kisaran linieritas ditunjukan pada kisaran konsentras…