The Economic Aspect of Geology

This landmark text, first published in 1922, established the intellectual framework for a field that would become essential to modern industry: economic geology. C. K. Leith, one of the most influential American geologists of his era, wrote this book at a pivotal moment when the industrialized world was grappling with the finite nature of its mineral wealth. WWI had laid bare how completely modern warfare depended on strategic minerals, and the specter of resource depletion loomed over international trade. Leith argues that understanding the origin, distribution, and extraction of mineral deposits is not merely an academic exercise but a matter of national economic survival. The book systematically examines how mineralogy, stratigraphy, and structural geology converge to guide exploration and conservation efforts. Though written nearly a century ago, its fundamental premise remains urgent: that geological knowledge and economic policy must work in concert to manage the Earth's finite resources responsibly.