Historical Geology Lecture 6 Absolute Time and Dating Geochronology Historical Geology I Early Dating Attempts II Isotopic Dating A) Radioactive Decay 1) Isotopes 2) Types…

Harry Williams, Historical Geology * Introduction: The standard geologic time scale was not developed in an organized and systematic manner. Instead, the scale took shape…

Historical Geology Lecture 25 The Pleistocene Epoch and Human Origins Historical Geology Outline I Pleistocene Timeline A. Nebraskan B. Kansan C. Illinoisan D. Wisconsin…

Historical Geology Lecture 16 The Middle Paleozoic Era Historical Geology I Paleozoic Timeline II Middle Paleozoic Paleogeography, Climate, and Sea Level III Geologic Framework…

Harry Williams, Historical Geology * HISTORICAL GEOLOGY LECTURE 2. SEDIMENTARY ENVIRONMENTS AND PALEOGEOGRAPHY Sedimentary rocks, much more so than igneous or metamorphic,…

* Harry Williams, Historical Geology * HISTORICAL GEOLOGY LECTURE 8. EARLY PALEOZOIC GEOLOGY I. Introduction The Paleozoic is long â 7 periods covering almost 300 million…

Harry Williams, Historical Geology * PENNSYLVANIAN - PERMIAN. 1. Paleogeography The Pennsylvanian opened with the Kaskaskia Regression, which left a widespread erosional…

Harry Williams, Historical Geology * HISTORICAL GEOLOGY LECTURE 10. LATE PALEOZOIC GEOLOGY I. The Late Paleozoic (Devonian-Mississippian-Pennsylvanian-Permian) is noted for…

Harry Williams, Historical Geology * HISTORICAL GEOLOGY LECTURE 5. STRUCTURE OF THE EARTH, OROGENESIS, CONTINENTAL GROWTH BY ACCRETION. Denser elements, such as IRON AND…

Harry Williams, Historical Geology * Introduction: The standard geologic time scale was not developed in an organized and systematic manner. Instead, the scale took shape…