William E. Glassley, author of "A Wilder Time," will be at the Napa County Library on Wednesday, Feb. 28, at 7 p.m.
Napa Bookmine and the Napa County Library are sponsoring the program.
Greenland, one of the last wild places, contains a treasure trove of information on Earth’s early history embedded in its pristine landscape. Over numerous seasons, Glassley and two fellow geologists traveled there to collect samples and observe rock formations for evidence to prove a contested theory that plate tectonics, the movement of Earth’s crust over its molten core, is a much more ancient process than some believed.
As their research drove the scientists ever farther into regions barely explored by humans for millennia — if ever — Glassley encountered wondrous creatures and natural phenomena that he tells about in his book.
The Napa library is at 680 Coombs St., Napa.