GEOL 107 Study Guide - Final Guide: Hyracotherium, Pikaia, Paraceratherium
6 Sep 2016
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Relative dating: getting events from different places in the correct order. Superposition: order in which sedimentary strata are superposed one above another. Law of original horizontality: strata are deposited in horizontal layers that are parallel with each other. Law of original continuity: strata are continuous over lateral distance. Correlation: connection between loh and loc of rock sections can build up a composite section that shows all the rock strata in the region in their proper relative ages. Biostratigraphy: subdivision of geologic time using divisions based on their fossil content. Absolute dating: getting precise absolute dates for key fossil horizons and events. 14c dating: a technique that can date organic materials that are up to 60,000 years old with high precision (half-life of 5730) U/pb dating: can date organic materials that are older than 60,000 years old (half-life of 0. 7-4. 5ga) Plate tectonics: theory explaining the structure of earth"s crust. Gondwana: megacontinent consisting of south america, africa, india, antarctica, and australia from.
