Sara Peek
Sara Peek manages the water and gas geochemistry labs for the California Volcano Observatory, and works on related volcano monitoring and research at California volcanoes, Yellowstone, and Hawaii.
Science and Products
Filter Total Items: 17
Chemical and Stable Isotope Data for Discrete Water Samples Collected in the Northern Sacramento-San Joaquin Delta, 2011-2012 Chemical and Stable Isotope Data for Discrete Water Samples Collected in the Northern Sacramento-San Joaquin Delta, 2011-2012
This data set consists of chemical and stable isotope data obtained through the analysis of discrete water samples collected from 14 fixed sampling locations in the northern Sacramento-San Joaquin Delta at roughly monthly intervals between April 2011 and November 2012.
Water chemistry data for selected hot springs and rivers in Southwest Yellowstone National Park, Wyoming Water chemistry data for selected hot springs and rivers in Southwest Yellowstone National Park, Wyoming
Water analyses are reported for 66 samples collected from numerous thermal and non-thermal (rivers and streams) features in the southwestern areas of Yellowstone National Park (YNP) during 2009, 2017, and 2018. Water samples were collected from sources near Boundary Creek, Bechler River, Falls River, Mountain Ash Creek, Upper Snake River, Spirea Creek, and Lewis Lake. These water samples...
Water level, temperature and chemistry in a deep well on the summit of Kilauea Volcano, Hawaii Water level, temperature and chemistry in a deep well on the summit of Kilauea Volcano, Hawaii
Kilauea, on the Island of Hawaii is one of the world's most active volcanoes and it hosts one of the densest volcano monitoring networks. A deep well on the southwest rim of Kilauea's caldera, often referred to informally as the "NSF Well" or the "Keller Well" was drilled in 1973 to a depth of 1,262 meters from an elevation of 1,103 meters. The ultimate goal of the drilling project was...
Groundwater levels and temperatures in well CH-10b near Hot Creek, Long Valley Caldera, eastern California (ver. 3.0, March 2025) Groundwater levels and temperatures in well CH-10b near Hot Creek, Long Valley Caldera, eastern California (ver. 3.0, March 2025)
Hot Creek Gorge contains the most obvious surface expression of the hydrothermal system in Long Valley Caldera, California, discharging 200-300 L/s of thermal water according to USGS measurements made since 1988. Formerly, Hot Creek was a popular public swimming area, but it was closed in 2006 due to unpredictable temperature fluctuations and sporadic geysering of thermal water within...
Volcanic ash leachate and rainwater chemistry from increased 2018 activity of Kilauea Volcano, Hawaii Volcanic ash leachate and rainwater chemistry from increased 2018 activity of Kilauea Volcano, Hawaii
In early May 2018, activity at Kilauea volcano, Hawaii, increased, with heightened ash production from the summit commencing on May 17. Volcanic ash can scavenge volatile components from volcanic plumes, resulting in the deposition of potentially harmful elements during ash fallout. Leaching of these species (e.g., by rainfall or in water catchment systems) can have implications for...
Filter Total Items: 14
Hydrothermal activity in the southwest Yellowstone Plateau Volcanic Field Hydrothermal activity in the southwest Yellowstone Plateau Volcanic Field
In the past two decades, the U.S. Geological Survey and the National Park Service have studied hydrothermal activity across the Yellowstone Plateau Volcanic Field (YPVF) to improve the understanding of the magmatic-hydrothermal system and to provide a baseline for detecting future anomalous activity. In 2017 and 2018 we sampled water and gas over a large area in the southwest YPVF and...
Authors
Shaul Hurwitz, R. Blaine McCleskey, Deborah Bergfeld, Sara Peek, David Susong, David A. Roth, Jefferson Hungerford, Erin B White, Lauren Harrison, Behnaz Hosseini, R. Greg Vaughan, Andrew G. Hunt, James B. Paces
By
Water Resources Mission Area, National Cooperative Geologic Mapping Program, Volcano Hazards Program, Colorado Water Science Center, Geology, Geophysics, and Geochemistry Science Center, Geosciences and Environmental Change Science Center, Volcano Science Center, Denver Radiogenic Isotope Lab, Yellowstone Volcano Observatory
Coral skeleton δ15N as a tracer of historic nutrient loading to a coral reef in Maui, Hawaii Coral skeleton δ15N as a tracer of historic nutrient loading to a coral reef in Maui, Hawaii
Excess nutrient loading to nearshore environments has been linked to declining water quality and ecosystem health. Macro-algal blooms, eutrophication, and reduction in coral cover have been observed in West Maui, Hawaii, and linked to nutrient inputs from coastal submarine groundwater seeps. Here, we present a forty-year record of nitrogen isotopes (δ15N) of intra-crystalline coral...
Authors
Joseph Murray, Nancy G. Prouty, Sara E. Peek, Adina Paytan
Science and Products
Filter Total Items: 17
Chemical and Stable Isotope Data for Discrete Water Samples Collected in the Northern Sacramento-San Joaquin Delta, 2011-2012 Chemical and Stable Isotope Data for Discrete Water Samples Collected in the Northern Sacramento-San Joaquin Delta, 2011-2012
This data set consists of chemical and stable isotope data obtained through the analysis of discrete water samples collected from 14 fixed sampling locations in the northern Sacramento-San Joaquin Delta at roughly monthly intervals between April 2011 and November 2012.
Water chemistry data for selected hot springs and rivers in Southwest Yellowstone National Park, Wyoming Water chemistry data for selected hot springs and rivers in Southwest Yellowstone National Park, Wyoming
Water analyses are reported for 66 samples collected from numerous thermal and non-thermal (rivers and streams) features in the southwestern areas of Yellowstone National Park (YNP) during 2009, 2017, and 2018. Water samples were collected from sources near Boundary Creek, Bechler River, Falls River, Mountain Ash Creek, Upper Snake River, Spirea Creek, and Lewis Lake. These water samples...
Water level, temperature and chemistry in a deep well on the summit of Kilauea Volcano, Hawaii Water level, temperature and chemistry in a deep well on the summit of Kilauea Volcano, Hawaii
Kilauea, on the Island of Hawaii is one of the world's most active volcanoes and it hosts one of the densest volcano monitoring networks. A deep well on the southwest rim of Kilauea's caldera, often referred to informally as the "NSF Well" or the "Keller Well" was drilled in 1973 to a depth of 1,262 meters from an elevation of 1,103 meters. The ultimate goal of the drilling project was...
Groundwater levels and temperatures in well CH-10b near Hot Creek, Long Valley Caldera, eastern California (ver. 3.0, March 2025) Groundwater levels and temperatures in well CH-10b near Hot Creek, Long Valley Caldera, eastern California (ver. 3.0, March 2025)
Hot Creek Gorge contains the most obvious surface expression of the hydrothermal system in Long Valley Caldera, California, discharging 200-300 L/s of thermal water according to USGS measurements made since 1988. Formerly, Hot Creek was a popular public swimming area, but it was closed in 2006 due to unpredictable temperature fluctuations and sporadic geysering of thermal water within...
Volcanic ash leachate and rainwater chemistry from increased 2018 activity of Kilauea Volcano, Hawaii Volcanic ash leachate and rainwater chemistry from increased 2018 activity of Kilauea Volcano, Hawaii
In early May 2018, activity at Kilauea volcano, Hawaii, increased, with heightened ash production from the summit commencing on May 17. Volcanic ash can scavenge volatile components from volcanic plumes, resulting in the deposition of potentially harmful elements during ash fallout. Leaching of these species (e.g., by rainfall or in water catchment systems) can have implications for...
Filter Total Items: 14
Hydrothermal activity in the southwest Yellowstone Plateau Volcanic Field Hydrothermal activity in the southwest Yellowstone Plateau Volcanic Field
In the past two decades, the U.S. Geological Survey and the National Park Service have studied hydrothermal activity across the Yellowstone Plateau Volcanic Field (YPVF) to improve the understanding of the magmatic-hydrothermal system and to provide a baseline for detecting future anomalous activity. In 2017 and 2018 we sampled water and gas over a large area in the southwest YPVF and...
Authors
Shaul Hurwitz, R. Blaine McCleskey, Deborah Bergfeld, Sara Peek, David Susong, David A. Roth, Jefferson Hungerford, Erin B White, Lauren Harrison, Behnaz Hosseini, R. Greg Vaughan, Andrew G. Hunt, James B. Paces
By
Water Resources Mission Area, National Cooperative Geologic Mapping Program, Volcano Hazards Program, Colorado Water Science Center, Geology, Geophysics, and Geochemistry Science Center, Geosciences and Environmental Change Science Center, Volcano Science Center, Denver Radiogenic Isotope Lab, Yellowstone Volcano Observatory
Coral skeleton δ15N as a tracer of historic nutrient loading to a coral reef in Maui, Hawaii Coral skeleton δ15N as a tracer of historic nutrient loading to a coral reef in Maui, Hawaii
Excess nutrient loading to nearshore environments has been linked to declining water quality and ecosystem health. Macro-algal blooms, eutrophication, and reduction in coral cover have been observed in West Maui, Hawaii, and linked to nutrient inputs from coastal submarine groundwater seeps. Here, we present a forty-year record of nitrogen isotopes (δ15N) of intra-crystalline coral...
Authors
Joseph Murray, Nancy G. Prouty, Sara E. Peek, Adina Paytan