ANTH 140 Lecture 9: Feder, Egypt
21 Nov 2016
School
Department
Course
Professor
Document Summary
Superposition: in undisturbed area, youngest is closer to the top. Biostratigraphy: same principle, but with living organisms. Provides absolute range but not precise dates. Standard deviation or range of variation (sigma sign) Suess effect: c-14 changed over time because of radiation in atmosphere. Potassium-argon dating (k/ar) & argon/argon dating (more accurate) Materials = igneous rocks (volcanic rock) potassium turns into argon. Range = origin of earth (4. 6bil-100k ya) Chronometric methods based on biology (absolute but not precise) Collapsed pyramid: started as step pyramid, started to build as more pyramid like, but collapsed on uneven ground. Dashour: red pyramid and bent pyramid (well preserved) Giza: pyramids of khufu, khafre, and menkaure. Khufu: king"s chamber, queen"s chamber subterranean chamber. Khafre: has original limestone casing at the top. Menkaure: smaller, was supposed to be encased in pink granite, but never finished. Long ramp to the top, zig zag ramp, spiral ramp do not work. Built with internal spiral ramp structure- jean-pierre houdin.
