Abstract
At a time when many early geologists were abandoning Genesis and compromising with the new old-Earth interpretations of Hutton, Werner, Buckland, Cuvier and others, Granville Penn made a courageous stand in defence of the Scriptures in his book A Comparative Estimate of the Mineral and Mosaical Geologies. Penn insisted that Earth history began with six literal days of creation by God, during which the 'primitive'(granitic) rocks were created with an appearance of age (on Day 1) and a major geological upheaval occurred which built and shaped the first land (on Day 3). The global yearlong Flood was then responsible for devastating the Earth, building most of the layers of fossil-bearing rocks, and eroding today's valleys when retreating. Penn's work received positive recognition. He insisted that geology as a study of history depended on divine revelation, but should also be built on the sound philosophical basis of Bacon and Newton.