Eos, Transactions American Geophysical Union

What on Earth is D”?

Authors


Abstract

Studied in earnest for 50 years time Is Earth's deep layer called Dee Double Prime. Exotic hypotheses new papers chime, But evasive big pictures halt reason or rhyme.

Even before the first nuclear bomb, People like Gutenberg, Bullen, and Dahm And probably others: Dick, Harry, and Tom Proposed this new layer to address a qualm.

Ancillary