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20 September 2019
This is an ex-eruption!
Recently, as chronicled in Scientific American, I was involved with amending the eruptive record at California’s Mount Shasta to remove an eruption that was supposedly seen by a French mapping expedition in 1786. USGS researchers had already been puzzling over it for years – evidence was slim, since the area was already prone to forest fires and there was nothing in the geologic record to suggest that it happened. William …
22 June 2011
Archival Gold: USGS National Geologic Map Database
Time for another of these, since I haven’t done one in a while! This Archival Gold post departs a bit from the photo theme, but it’s no less useful – in fact, it was one of the most useful websites I ever encountered as an undergrad. The U. S. Geological Survey’s National Geologic Map Database contains records of, and often links to, more than 85,000 maps related to a variety of subjects: geology, hazards, earth resources, geophysics, geochemistry, geochronology, paleontology, and marine geology.
Jessica Ball is a volcanologist at the U.S. Geological Survey, researching volcanic hydrothermal systems and stability, and doing science communication for the California Volcano Observatory. She previously worked at the Geological Society of America's Washington DC Policy Office, learning about the intersection of Earth science and legislative affairs. Her Mendenhall postdoc and PhD focused on how water affects the stability of volcanoes, and involved both field investigations and numerical modeling applications. Her blogging covers a range of topics, from her experiences in academic geosciences to science outreach and communication to her field and lab work in volcanology.