GEO 101 Lecture Notes - Lecture 2: James Hutton, Ripple Marks, Geologic Time Scale
21 Jan 2017
School
Department
Course
Professor
Document Summary
Geologic time: the span of time since earth"s formation. Provides a frame of reference to describe the age of rocks, fossils, and structures. Often, geologic time is measured is millions or even billions of years, and the comprehension of numbers that large is quite different from our daily concept of time. Provides context for the other concepts we will discuss later. At that time, earth was thought to be ~6000 years old (based on scholarly analysis of the. Hutton concluded that the processes we see today must also have been going on in the past. Published principles of geology, which really popularized hutton"s ideas. Also close, influential friend of charles darwin, who developed many of the key ideas regarding evolution of life. Age of features are described in relation to one another (i. e. , feature a is older than feature b) Age of features are reported by a numerical value (i. e. , number of years)
