Our Amazing Earth

Encounters with the ENSO – Part 2

El Niños, the warm phase of the El Niño-Southern Oscillation (ENSO) climate pattern, could be devastating for ancient Andean societies. Direct evidence of these events is scarce, but clever archaeological sleuthing has revealed details of event recurrence – and desperate measures taken by authorities to stop destructive flooding.

By |2021-01-21T11:27:59-07:00January 21st, 2021|Ancient Andean Cultures, Our Amazing Earth|0 Comments

Kilauea Stirring

On the evening of Dec 20, 2020, an eerie orange glow appeared on the infrared monitoring cameras on the summit of Kilauea volcano in Hawai’i Volcanoes National Park. The glow grew larger and larger, marking the beginning of a new volcanic eruption. Lava began pouring out from fissures in the summit crater and a steam cloud developed as the hot lava hit lake water and the water began to boil. 

By |2021-01-06T09:05:49-07:00January 7th, 2021|Our Amazing Earth|4 Comments

Quintessential Quartz

Some of us really like the mineral quartz – and for excellent reasons. Quartz is a major building block of my favorite landscapes, found in the granitic rocks forming the Andes Mountains and the Sierra Nevada; the sandy beaches along the California coast; the vast sand dunes of Death Valley and the Sahara Desert, and the Red Rock geologic units in Arches, Capital Reef, Zion.....

By |2020-12-10T17:47:22-07:00December 10th, 2020|Our Amazing Earth|0 Comments

Rock Carvings – Shaping Landscapes

The jagged Andes Mountains of South America, the sculpted Red Rock country in the western US, the towering waterfalls of Yosemite Valley - and every other impressive landscape on Earth – have had their scenic beauty carved through weathering and erosion of rock. Over immense amounts of time .... landscapes are shaped.

By |2020-11-12T07:45:40-07:00November 12th, 2020|Our Amazing Earth|0 Comments

Geysers in the Americas

Geysers, with hot water and steam welling up from deep underground, are mysterious clues to what lies beneath. Yellowstone National Park includes about half of all geysers found on Earth. The Andes Mountains contain a major geyser field, named El Tatio, in northern Chile......I recently dug around for more information about geysers – and I found some that was new news to me and, I think, quite interesting.

By |2020-10-17T06:08:39-07:00October 15th, 2020|Our Amazing Earth|4 Comments

Yellowstone’s Dynamic Geologic History

The dramatic landscape of Yellowstone National Park, including exploding geysers, bubbling mud volcanoes, and rainbow-colored lakes, all provide hints of the dynamic geologic history of the region. Yellowstone is one of the Earth’s largest volcanic systems, and earthquakes, ground surface movements, and hydrothermal activity in the region are all indications of this volcanism.

By |2020-10-11T06:31:01-07:00October 8th, 2020|Our Amazing Earth|0 Comments
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