THE manuscript of this book was left by the late Prof. Green in a somewhat unfinished condition, and the editor was asked to prepare it for the press. The book is described in the preface as being ...

Even teachers spend time in summer school. Teachers spent time this week traipsing through Garden of the Gods, touching rocks and learning about such things as alluvial fans, ancestral Rocky Mountains ...

I love the Grand Canyon, both personally (because of all the good memories I have of my adventures there), and as a scientist. I first saw it in the early summer of 1981 when I went on a six-week-long ...

Some years past when I was pulling weeds in my yard, I unearthed a dirt-covered rock. This is not unusual or really worth mentioning except that when I brushed off the dirt, one side unveiled a dark, ...

Bicyclists who take part in next month’s Cycling Scandia event will get a geology lesson in addition to a 15-mile workout. Geologist Dale Setterholm, who retired in February as associate director of ...