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Dinosaurs of Ghost Ranch

The ghosts of famous artists–and of several hundred dinosaurs who perished in disastrous floods–could be roaming the landscape of Ghost Ranch in north-central New Mexico. This high desert region with steep cliffs and colorful rocks has a long and rich history. Finally visiting Ghost Ranch during a recent road trip, I was captivated by the beauty and the history of the place.

By |2021-04-15T06:01:27-07:00April 15th, 2021|Fabulous Fossils & More|4 Comments

Finding Fossils: Trilobites and Traces

California encompasses tremendous diversity, and this includes rocks of virtually every age, reflecting a long and dynamic geologic history. I'm fond of all types of rock, but my favorites are shales, sandstones and limestones that preserve evidence of ancient plant and animal life. The older the fossils, the more interesting.

By |2021-04-08T09:56:56-07:00April 8th, 2021|Fabulous Fossils & More|3 Comments

Viewing Volcanic Eruptions

Watching a volcano erupt is exciting–and people all around the world now have opportunities to see these dramatic performances! The new volcano on the Reykjavik Peninsula in Iceland is getting lots of attention, as is Mount Etna in Sicily. Also, the eruption that began at Kilauea on December 20, 2020 is continuing and the lava lake is deepening.

By |2021-03-24T09:38:18-07:00March 24th, 2021|Our Amazing Earth|0 Comments

Fabulous Ancient Andean Fabrics

We recognize an extremely long and rich tradition of fiber arts from the Andes Mountains -- possibly the longest continuous history of fiber use found on earth. From exquisite embroidered shrouds used to wrap mummies many thousands of years ago, to the finely woven tapestry tunics worn by Inca royalty, the artistry of these textiles is exceptional.

By |2021-03-11T07:59:04-07:00March 11th, 2021|Ancient Andean Cultures|4 Comments

A Lighter Side of Lithium – Part 2

Meeting increased demand for lithium has a dark side of potentially damaging the environment and public health – but fortunately there is also a lighter side. Recycling can reclaim valuable metals including lithium from the battery packs that might otherwise end up in landfills. Together, recovery from other industrial operations and recycling could eventually reduce the need to wrestle new metal supplies out of the ground.

By |2021-03-04T07:36:47-07:00March 4th, 2021|Our Amazing Earth|6 Comments

A Lighter Side of Lithium – Part 1

Electric vehicles (EVs) are the wave of the future. Improvements in lithium-ion battery packs are occurring rapidly and prices are falling. Obtaining sufficient lithium to meet the growth ahead for EV has a dark side, involving open-pit mining and brine evaporation pools that can be devastating for the environment. Fortunately, there is also a lighter side that is gaining momentum.

By |2021-02-25T16:59:27-07:00February 25th, 2021|Our Amazing Earth|4 Comments

Where Lithium Lurks

The demand for lithium is increasing dramatically – and sources of this metal are being sought from the high elevations of the Andes Mountains to the lowlands of Australia. Lithium is widely distributed on our planet, but since concentrations of this metal are typically quite low, relatively few ores that are economical to mine have been found to date. There are currently three major sources.

By |2021-02-19T13:51:39-07:00February 18th, 2021|Our Amazing Earth|4 Comments
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