William Smith's 1815 depiction of the geology of England ... John Henry explained: "The concept which enabled him to do the mapping and that drove him along almost obsessively was this realisation ...

Smith’s map and ideas paved the way for a better understanding of geological time and laid the founding principles for geological surveys worldwide. His concept of using fossils to identify rocks is ...

Geologic Time is a crucial concept to understanding the history of the earth—including the evolution of life. Many different representations of the timeline have been created, and many approaches ...

MONTPELIER, Vt. (WCAX) - The Vermont Geological Survey is releasing five new geological maps zoomed in on Woodsville, Barnet, Lincoln, Mount Ellen, and Brookfield. The state, UVM, and Norwich ...

William Smith's 1815 depiction of the geology of England ... John Henry explained: "The concept which enabled him to do the mapping and that drove him along almost obsessively was this realisation ...