Horace 2
Pyu material culture
1 Lecture 1: Geologic Time and Plate Tectonics Questions –How do geologists place the events of geologic history in sequence? What is correlation? –What.
Impact Cratering Dating Nathan Marsh. Relative Dating Simple but not as informative Measures the crater densities (craters per square kilometer) Generally.
Absolute Dating Using Radioactivity. Absolute Age dating was major advance in Historical Geology – More accurate reconstruction of geologic events Mostly.
A few sample MC on metamorphic rocks…. Marble is a metamorphic rock that forms from __________? A. granite B. limestone C. sandstone D. shale Answer =
Determining geological ages Relative ages – placing rocks and geologic events in their proper sequence, oldest to youngest. Absolute dates – define the.
James Ussher (mid 1600's) Georges Buffon (mid 1700s) Lord Kelvin (late 1800's) 75,000 yr 100 m.y. Charles Walcott (1893) 75 m.y. 4004 B.C.
Kuliah geokimia 6a
Semanticnews 230913-final
Lesson 1 Early Humans
D. Von Bothmer - Newly Acquired Bronzes
