eprintid: 1791 rev_number: 10 eprint_status: archive userid: 15 dir: disk0/00/00/17/91 datestamp: 2020-09-09 05:56:47 lastmod: 2021-12-13 03:18:08 status_changed: 2020-09-09 05:56:47 type: conference_item metadata_visibility: show creators_name: T. Listyani, R.A. creators_id: listyani_theo@yahoo.co.id title: Influence of Rock’s Chemical Composition to Groundwater Quality in Jakarta Basin ispublished: pub subjects: QE keywords: groundwater, quality, chemical composition abstract: The quality of groundwater in the region in general is influenced by the local geological conditions, for example in terms of the type of rock. The study of the quality of groundwater in Jakarta Groundwater Basin has been done to see how far the relationship between chemical characteristic of the rocks and the quality of groundwater. The existence of a wide variety of rock and groundwater quality in the study area prompted the author to determine the correlation or the influence of rock to groundwater, particularly in the chemical aspect. The analysis was conducted based on some field and laboratory data and supported by secondary data such as geological and hydrogeology data. Sampling of rocks and groundwater in the field were taken from some drilled wells, then performed the chemical constituents of rocks and groundwater testing. The results showed that the quality of groundwater in the study area is quite influenced by the chemical content of rocks constituent of studied area. The content of the studied groundwater is dominated by the major cations Na+ and Ca2+, as well as the major anion HCO3- and Cl-, while rocks showed the dominant element of Fe3+ (4,460-107,000 ppm) and CO32- (0.14 to 2.22)%. Differences of dominant compositio in rocks and groundwater is highly influenced by the ease of minerals to dissolve in certain geological conditions. The content of cations and anions in the groundwater under study supplied by the result of rock minerals weathering that are interpreted primarily derived from the weathering of silicate minerals. Thus, sedimentary rocks consisting the studied basin have a role in determining groundwater quality, and supported by geological and hydrogeological conditions as well as mineral stability factor. However, correlation between chemical composition in rocks and groundwater is not clearly significant. Key words: groundwater, quality, chemical composition date: 2017-07-09 date_type: published official_url: https://itny.ac.id contact_email: library@sttnas.ac.id full_text_status: public pres_type: paper pagerange: 113-123 event_title: RURAL DEVELOPMENT CONFERENCE 2017 event_location: Bangkok event_dates: 9-11 July 2017 event_type: conference refereed: TRUE referencetext: References Ako, A.A., Shimada, J., Hosono, T., Kagabu, M., Ayuk, A.R., Nkeng, G.E., Eyong, G.E.T. and Takounjou, A.L.F, 2012, Spring Water Quality and Usability in the Mount Cameroon Area Revealed by Hydrogeochemistry, Environ Geochem Health, 34:615- 639, Springer, DOI 10.1007/s10653-012-9453-3. 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