Sunday, December 27, 2009

Three photos from California Academy of Sciences, San Francisco

This is a fantastic place! Clearly worth a visit if you have a few hours to spend in San Francisco.

More photographs here.

Madagascar giant day gecko

Coral reef from the Philippines


Wednesday, December 23, 2009

Lunar Crater volcanic field, Nevada

I was on my way to San Francisco / AGU last week when I saw these volcanoes and shot these pictures through the airplane window. It turns out that this is the Lunar Crater volcanic field in Nevada, named after the largest crater that is more than 1000 meters across and about 130 m deep. There are 95 vents that are 4.2 million to 15,000 years old. Lunar Crater is the largest feature in the image below; it is a maar; most of the other vents formed cinder cones.

Here is a map showing the Houston - San Francisco flight track and the location of the volcanic field:

View Lunar Crater volcanic field in a larger map

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