The Floors of the Ocean: 1. The North Atlantic Text to accompany the physiographic diagram of the North Atlantic

"The Floors of the Ocean: 1. The North Atlantic" by Bruce C. Heezen, Marie Tharp, and Maurice Ewing, is a mid-20th-century publication that dives into the physical features of the North Atlantic Ocean and their importance in geology. It uses echo-sounding data to paint a complete picture of the ocean floor's shape and how it connects to geological formations. The initial part explains how the data was gathered and gives a look at the different kinds of oceanic features like the edges of continents, the deep ocean floor, and ridges in the middle of the ocean. The introduction talks about the ongoing work to understand the geology of the sea, showing how earlier studies have influenced what we know today about the ocean's physical form, while also pointing out that we still need to explore these underwater areas more. This basic information prepares the reader for a more detailed look at the ocean's depths and what they mean.