Karteikarten
Chapter 16 Flashcards
Karten in diesem Stapel (7)
- 1Relative DatingExact age unknown, but it is known if it is older/younger than other sample or earth it was found in.
Allows sequence of events to be established. - 2Absolute DatingAge of sample known in years of a fossil or artefact.
- 3Potassium-Argon DatingAbsolute dating method where ratio of Potassium-40 to Calcium- and Argon-40 is used.
Half-Life = 1.21 billion years - 4Radiocarbon DatingBased on Carbon-14 to Nitrogen decay.
Half-Life = 5700 years - 5ArtefactAn object made or modified by humans
- 6Index Fossils- Widespread, but for a short period of time
- Can be used in stratigraphy to date other fossils - 7AMS Radiocarbon DatingTBA
Informationen
- Beschreibung
- Fossil formation, relative and absolute dating methods.
- Erstellt von
- Ronan Kavanagh
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