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Photo and Video Chronology - Mauna Loa - September 28, 2019

By Mauna Loa September 28, 2019

 

HVO rebuilds and relocates Mauna Loa gas monitoring instruments

 

image related to volcanoes. See description
Sources/Usage: Public Domain. View Media Details
An HVO scientist connects via computer to an upgraded gas sensor station on Mauna Loa. The old housing for the station is visible in the background. USGS photo by P. Nadeau, 09-17-2019.
Color photograph of scientists checking instrument
Sources/Usage: Public Domain. View Media Details
An HVO field engineer and gas geochemist check the wire and tubing connections in the updated gas sensor equipment. 
Color photograph of old fissure with sulfur
Sources/Usage: Public Domain. View Media Details
Native sulfur crystals often form through the reaction of sulfur dioxide and hydrofen sulfide gases, both of which are degassing from this old fissure on Mauna Loa, making it an ideal site for volcanic gas monitoring. As a result of the degassing, the fissure is lined with yellow sulfur crystals. 

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