William Ascarza Special to the Arizona Daily Star Jan 8, 2023 Jan 8, 2023 Updated Feb 13, 2024 Arizona has the distinction of many mine sites that have diverse geology and mineralogy. Located 20 miles ...
The state of Arizona and its picturesque landscapes have been shaped by a geological history of volcano eruptions across the region. Some of the oldest volcanic rocks in the state are 1.8 billion ...
A new study highlights the striking coincidence in the geologic ages of the famous Meteor Crater in Arizona and a landslide dam that blocked the Colorado River, forming a paleolake in the Grand Canyon ...
A view of the Stikine River near Wrangell and Petersburg. (Courtesy Cindi Lagoudakis) A geologist who has studied Southeast Alaska’s rocks and minerals for decades is creating a new geologic map of ...
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