Volcanostratigraphy for supporting geothermal exploration

5th ITB International Geothermal Workshop

Bronto, S.^1 ; Sianipar, J.Y.^2 ; Pratopo, A.K.^2

Geological Agency, Ministry of Energy and Mineral Resources, 57th Diponegoro Rd., Bandung

40122, Indonesia^1

Geothermal Technology Master Program, Faculty of Mining and Petroleum Engineering, Institut Teknologi Bandung, Bandung

40132, Indonesia^2

关键词: Deposition mechanism;    Genetic process;    Geothermal exploration;    Geothermal process;    Physical and chemical properties;    Regional areas;    Source location;    Volcanostratigraphy;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/42/1/012014/pdf
DOI  :  10.1088/1755-1315/42/1/012014

来源: IOP

【 摘 要 】

Volcanostratigraphy is stratigraphy related to volcanism and its products. This includes stratigraphy for a general scoping of a regional area and detailed analysis in a local area. On the basis of Indonesian Stratigraphic Code 1996, from low to high rank, volcanostratigraphic units are Hummock (Gumuk), Crown (Khuluk), Brigade (Bregada), Super Brigade (Manggala), and Arc (Busur). For more detailed stratigraphic study these ranked units can be classified into genetic rock units based on source location, processes and absolute age. Genetic processes include transportation and cooling or deposition mechanisms. These lead to physical- and chemical- properties of the volcanic rocks and provide the history of volcanism and potentially geothermal processes in an area. For many areas in Indonesia the understanding of the volcanostratigraphy is an important dataset for geothermal exploration.