White Sand Beaches
I got a question from Jane who, while reading Marker Bed, became intrigued by the reference to quartz sand on page 29 of the print versions. (By the way, if you have not yet...
Tagged: Passive Continental Margin
Earthquakes, Seismic Waves, and the New Madrid Fault
How far do earthquake waves travel, and what can cause different quakes to be felt at a greater or lesser distance? This is a fine question, and before we get started, feel free to...
