“With each integer on the Richter scale, there is a tenfold increase in the number of earthquakes that occur annually. On average, there is one magnitude 8 event, ten magnitude 7 events, a hundred magnitude 6 events, and so on,… — Marcia Bjornerud Copy Share Image
“According to pioneering microbiologist Lynn Margulis, "fully 10 percent of our own dry body weight consists of bacteria, some of which, although they are… — Marcia Bjornerud Copy Share Image
“With each integer on the Richter scale, there is a tenfold increase in the number of earthquakes that occur annually. On average, there is… — Marcia Bjornerud Copy Share Image
“The rate of rebound reflects how fast the mantle beneath the crust can flow back into place, and in places the rate is surprisingly… — Marcia Bjornerud Copy Share Image
“Finding outcrops is easy in arid and mountainous areas, where naked rock lies basking in the sun. But in humid and topographically subtle areas… — Marcia Bjornerud Copy Share Image
