Rose Houk
- Indexed articles, last 90 days
- 2
- Latest publication
- Sep 30, 2026
- Outlet visibility, for KNAU Arizona Public Radio
- Top 5M sites
- Earliest in this view
- Sep 2, 2026
Latest articles
Earth Notes: Bidahochi Basin (opens the original)
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An abiding question among geologists is when was the Grand Canyon carved? When did the Colorado River assume its present course and become the master sculptor of the Canyon? Recent research has supplied at least one answer. It tells of a lake that pooled up and eventually spilled over to become today’s through-flowing Colorado. That lake formed in the Bidahochi Basin on the Navajo Nation in northeast Arizona. Key to unlocking the story are microscopic bits of zircon, which appear as small rounde
Earth Notes: Fibonacci Sequence (opens the original)
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The spiral pattern in a sunflower’s seeds isn’t random. It follows a mathematical sequence that appears throughout the natural world.
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