1 Lecture 1: Geologic Time and Plate Tectonics Questions –How do geologists place the events of geologic history in sequence? What is correlation? –What.
FOSSILS: REMAINS OR EVIDENCE OF ANCIENT LIFE REMAINS ARE PRESERVED WHEN BURIED BY SEDIMENTS QUICK BURIAL HELPS PRESERVATION SEDIMENTS PRESERVE HARD PARTS.
Evolution of Populations 100 200 300 400 500 100 200 300 400 500 100 200 300 400 500 100 200 300 400 500 100 200 300 400 500 ANCIENT LIFEFORMING FOSSILS.
Rock/Mineral Exam – Next Week Take advantage of the help sessions. Samples on the exam will not be the same samples you saw in lab, so memorizing them.
Chapter 17 : The History of Life. 17-1 The Fossil Record What is a fossil? Paleontologist: scientist who studies fossils Fossil record: provides info.
Unit 6 – The Geosphere Vocabulary 1.Uniformitarianism 2.Relative Dating 3.Law of Superposition 4.Principle of Original Horizontality 5.Principle of Cross-
Chapter 21 Fossils and Rock Record. Vocabulary Uniformitarianism- processes happening today have been happening since Earth formed. (ex. Earthquakes and.
READING THE ROCK RECORD. relative time: events are in sequence, but no actual dates absolute time: identifies actual date of event.
Dating. Stratigraphy As early as 1668 in De solido intra solidum naturaliter…the Danish scholar Niels Stensen (renamed Nicolaus Steno in college) argued.
Earth history
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