The Marin Headlands terrane is the upper portion of oceanic crust. It consists of pillow basalt, red ribbon chert interlayered with shale, and sandstone. These rocks were once part of the ocean floor of the Farallon plate. Around 100 Ma, they were crammed into the subduction zone and broken into numerous thin fault slices, so [...]

Getting to Know and Love Mother Earth “Young people, I want to beg of you always keep your eyes open to what Mother Nature has to teach you. By doing so you will learn many valuable things every day of your life.” -George Washington Carver, scientist and environmental educator I teach Physical Geography at the [...]

A story of The Marin Headlands as told by its environment A visit to the Marin Headlands immediately begs the question: “What is the history of the place?”  As one walks around the park, a question is always hovering in the background: “What was happening here before I set foot in this space?” This area [...]

After decades of study based on thousands of years of data, the verdict is in: The earth is getting hotter. Considering average global temperatures since 1865, 20 out of 21 of the hottest years measured have occurred in the last 25 years! Most of these increases are due to carbon dioxide (CO2) which is known [...]