Chemical and isotopic composition of gas, water, and solids from the 2019-2020 water lake in Halema’uma’u Crater, Kīlauea Volcano, Hawaii: Water Chemistry
Samples for water chemistry analysis were filtered to 0.45 µm upon collection. Since the solute-rich samples continued to form precipitates, samples were filtered again immediately prior to analysis if needed. All samples were very rich in solutes and were analyzed at multiple dilutions (1:100 to 1:1000) to match instrument measurement ranges for various analytes. Water chemistry analyses were performed at the U.S. Geological Survey laboratories in Menlo Park, California.
The concentrations of fluoride (F-), chloride (Cl-), sulfate (SO42-), and bromide (Br-) in samples were determined by ion chromatography with a Dionex ICS-2000, using a 250 mm Dionex IonPac AS18 column.
The concentrations of major cations were determined via inductively coupled plasma-optical emission spectrometry (ICP-OES) using a ThermoScientific ICAP 6500 Duo. A mixed-element standard (produced to spec by High-Purity Standards Inc.) was run at a range of dilutions to calibrate the instrument.
Additional cation concentrations, including heavier trace elements, were determined by inductively coupled plasma mass spectrometry (ICPMS, NExION 300Q, Perkin Elmer) using a method adapted from Garbarino and Taylor (1996). External standards, serially diluted from ultrapure, single-element stock, were used to create calibration curves.
References:
Garbarino, J.R. and Taylor, H.E., 1996. Inductively coupled plasma-mass spectrometric method for the determination of dissolved trace elements in natural water. Washington, DC: US Geological Survey. USGS OFR 94-358, 49 p. https://doi.org/10.3133/ofr94358
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Complete Metadata
| @type | dcat:Dataset |
|---|---|
| accessLevel | public |
| bureauCode |
[ "010:12" ] |
| contactPoint |
{ "fn": "Sara E Peek", "@type": "vcard:Contact", "hasEmail": "mailto:speek@usgs.gov" } |
| description | Samples for water chemistry analysis were filtered to 0.45 µm upon collection. Since the solute-rich samples continued to form precipitates, samples were filtered again immediately prior to analysis if needed. All samples were very rich in solutes and were analyzed at multiple dilutions (1:100 to 1:1000) to match instrument measurement ranges for various analytes. Water chemistry analyses were performed at the U.S. Geological Survey laboratories in Menlo Park, California. The concentrations of fluoride (F-), chloride (Cl-), sulfate (SO42-), and bromide (Br-) in samples were determined by ion chromatography with a Dionex ICS-2000, using a 250 mm Dionex IonPac AS18 column. The concentrations of major cations were determined via inductively coupled plasma-optical emission spectrometry (ICP-OES) using a ThermoScientific ICAP 6500 Duo. A mixed-element standard (produced to spec by High-Purity Standards Inc.) was run at a range of dilutions to calibrate the instrument. Additional cation concentrations, including heavier trace elements, were determined by inductively coupled plasma mass spectrometry (ICPMS, NExION 300Q, Perkin Elmer) using a method adapted from Garbarino and Taylor (1996). External standards, serially diluted from ultrapure, single-element stock, were used to create calibration curves. References: Garbarino, J.R. and Taylor, H.E., 1996. Inductively coupled plasma-mass spectrometric method for the determination of dissolved trace elements in natural water. Washington, DC: US Geological Survey. USGS OFR 94-358, 49 p. https://doi.org/10.3133/ofr94358 |
| distribution |
[ { "@type": "dcat:Distribution", "title": "Digital Data", "format": "XML", "accessURL": "https://doi.org/10.5066/P99H412X", "mediaType": "application/http", "description": "Landing page for access to the data" }, { "@type": "dcat:Distribution", "title": "Original Metadata", "format": "XML", "mediaType": "text/xml", "description": "The metadata original format", "downloadURL": "https://data.usgs.gov/datacatalog/metadata/USGS.61402173d34e1449c5d3853a.xml" } ] |
| identifier | http://datainventory.doi.gov/id/dataset/USGS_61402173d34e1449c5d3853a |
| keyword |
[ "Hawai'i", "Kilauea", "USGS:61402173d34e1449c5d3853a", "geoscientificInformation", "sulfur isotopes", "water chemistry" ] |
| modified | 2023-03-30T00:00:00Z |
| publisher |
{ "name": "U.S. Geological Survey", "@type": "org:Organization" } |
| spatial | -155.29700, 19.39400, -155.26400, 19.42000 |
| theme |
[ "geospatial" ] |
| title | Chemical and isotopic composition of gas, water, and solids from the 2019-2020 water lake in Halema’uma’u Crater, Kīlauea Volcano, Hawaii: Water Chemistry |
