Monthly Archives: September 2020

Machu Picchu’s Unique Geology

Machu Picchu, the Inca citadel high on a ridge in the Andes Mountains, is one of the most impressive and widely recognized archaeological sites on Earth. Since I am fascinated by this spectacular place, I’ve written about it in several blog posts. In a new article I’ve focused on the geology – and this is posted on a website called "GondwanaTalks".

By |2020-09-23T19:37:28-07:00September 23rd, 2020|Ancient Andean Cultures|0 Comments

Nevada Tufa, Tuff, and Scarps

Nevada encompasses an enormous variety of rock, mineral, and geomorphic features. Many aspects of this geology can be seen along Highway 50, which extends from west to east .... and is also known as “The Loneliest Road in America” (doubling its appeal, IMO!). On a recent trip while camping at remote sites (social distancing!), I explored along a western section of this highway....

By |2020-09-17T16:12:46-07:00September 17th, 2020|Our Amazing Earth|6 Comments

Ancient Andean Ritual Drugs – and Beyond

The Inca, Tiwanaku, Moche, Chavín, and many other indigenous Andean cultures used a variety of plant-based drugs – including hallucinogens and narcotics -- in their religious rituals. When the ancient people ingested what they considered to be sacred plants, access to a separate realm – a supernatural world – could be reliably achieved.

By |2020-09-08T07:02:21-07:00September 10th, 2020|Ancient Andean Cultures|2 Comments
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