The earth where we live is the only planet of our solar system that holds a mass of water we know as the ocean, covering 70.8% of the earth's surface with a mean depth of 3,800 m. When using the term ocean, we mean not only the water and what it contains, but also the bottom that supports the water mass above and the atmosphere on the sea surface. Modern oceanography thus deals with the water, the bottom of the ocean, and the air thereon. In addition, varied interactions take place between the ocean and the land so that such interface areas are also extended domains of oceanography. In ancient times our ancestors took an interest in nearshore seas, making them an object of constant study. Deep seas, on the other hand, largely remained an area beyond their reach. Modern academic research on deep seas is said to have been started by the first round-the-world voyage of Her Majesty's R/V Challenger I from 1872 to 1876. It has been only 120 years since the British ship leftPortsmouth on this voyage, so oceanography can thus be considered still a young science on its way to full maturity.

This monograph contains over fifty high-quality plates of electron micrographs of limestones. It spans the field of limestones in age from Cambrian to Recent, and in type from deep-sea oozes to intertidal rocks. It represents the outcome of four years of research in the new field of electron microscopy applied to rocks. The illustrations show the spectacular results and much more is revealed in fossils and textures than would be expected on the basis of optical studies. Originally published in 1967. The Princeton Legacy Library uses the latest print-on-demand technology to again make available previously out-of-print books from the distinguished backlist of Princeton University Press. These editions preserve the original texts of these important books while presenting them in durable paperback and hardcover editions. The goal of the Princeton Legacy Library is to vastly increase access to the rich scholarly heritage found in the thousands of books published by Princeton University Press since its founding in 1905.

This monograph contains over fifty high-quality plates of electron micrographs of limestones. It spans the field of limestones in age from Cambrian to Recent, and in type from deep-sea oozes to intertidal rocks. It represents the outcome of four years of research in the new field of electron microscopy applied to rocks. The illustrations show the spectacular results and much more is revealed in fossils and textures than would be expected on the basis of optical studies. Originally published in 1967. The Princeton Legacy Library uses the latest print-on-demand technology to again make available previously out-of-print books from the distinguished backlist of Princeton University Press. These editions preserve the original texts of these important books while presenting them in durable paperback and hardcover editions. The goal of the Princeton Legacy Library is to vastly increase access to the rich scholarly heritage found in the thousands of books published by Princeton University Press since its founding in 1905.