Wildcard Relative Dating Geologic Time Radioactive Decay Eons, Eras

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Presentation transcript:

Wildcard Relative Dating Geologic Time Radioactive Decay Eons, Eras Eleanor M. Savko Radioactive Decay Relative Dating Geologic Time 2/23/2019 Wildcard Eons, Eras & Epochs 100 100 100 100 100 200 200 200 200 200 300 300 300 300 300 400 400 400 400 400 500 500 500 500 500

Radioactive isotope that decays to Pb-206. Eleanor M. Savko 2/23/2019 Radioactive isotope that decays to Pb-206.

Eleanor M. Savko 2/23/2019 What U-238?

Process of determining age through comparison of radioactive isotopes. Eleanor M. Savko 2/23/2019

What is radiometric/absolute dating? Eleanor M. Savko What is radiometric/absolute dating? 2/23/2019

Eleanor M. Savko 2/23/2019 The unstable form of N-14.

Eleanor M. Savko 2/23/2019 What is C-14?

Eleanor M. Savko 2/23/2019 Half-life of U-238.

Eleanor M. Savko 2/23/2019 What is 4.5 billion years?

Eleanor M. Savko 2/23/2019 Half-life of C-14.

Eleanor M. Savko 2/23/2019 What is 5730 years?

Eleanor M. Savko 2/23/2019 Geologic law stating that the oldest layer of sediment is always at the bottom of the strata.

What is the Law of Superposition? Eleanor M. Savko 2/23/2019 What is the Law of Superposition?

The oldest rock layer Eleanor M. Savko 2/23/2019

Eleanor M. Savko 2/23/2019 What is layer 4?

Eleanor M. Savko 2/23/2019 DAILY DOUBLE!!!

Eleanor M. Savko 2/23/2019 Fossils found exclusively in the rock layers of a particular geologic time.

Eleanor M. Savko 2/23/2019 What are index fossils?

Eleanor M. Savko 2/23/2019 An igneous intrusion is always younger than the rock it has cut across.

Eleanor M. Savko What the Principle of Cross-Cutting Relationships or Igneous Intrusions? 2/23/2019

Process used to determine the sequence of a rock layer in relation to the sequence of other rock layers Eleanor M. Savko 2/23/2019

Eleanor M. Savko 2/23/2019 What relative dating?

Eleanor M. Savko 2/23/2019 Why Cambrian rocks of Greenland, currently under an ice sheet, have fossils of tropical plants.

Eleanor M. Savko 2/23/2019 What is during that geologic time, the land of Greenland was closer to the equator?

Fossils from the Mesozoic era contain many of these organisms. Eleanor M. Savko 2/23/2019 Fossils from the Mesozoic era contain many of these organisms.

Eleanor M. Savko 2/23/2019 What are dinosaurs?

Extraterrestrial proof of the Permian extinction. Eleanor M. Savko 2/23/2019 Extraterrestrial proof of the Permian extinction.

Eleanor M. Savko 2/23/2019 What are buckyballs?

Geologic time frames from smallest to largest. Eleanor M. Savko 2/23/2019

What are epoch, period, era and eon Eleanor M. Savko 2/23/2019

Extinction that ended the Mesozoic era. Eleanor M. Savko 2/23/2019 Extinction that ended the Mesozoic era.

What is the Cretaceous-Tertiary (K-T) extinction? Eleanor M. Savko 2/23/2019

Radioactive isotope of carbon. Eleanor M. Savko 2/23/2019 Radioactive isotope of carbon.

Eleanor M. Savko 2/23/2019 What is C-14?

Eleanor M. Savko 2/23/2019 DAILY DOUBLE!!!!

Period that ended with the extinction of all dinosaurs. Eleanor M. Savko 2/23/2019 Period that ended with the extinction of all dinosaurs.

What is the Cretaceous period? Eleanor M. Savko 2/23/2019 What is the Cretaceous period?

Why carbon dating is used to date fossils. Eleanor M. Savko 2/23/2019 Why carbon dating is used to date fossils.

What is it has a short half-life and it’s used to date once living things? Eleanor M. Savko 2/23/2019

Eleanor M. Savko 2/23/2019 Study of fossils.

Eleanor M. Savko 2/23/2019 What is Paleontology?

Earth’s geologic processes are the same now as in the past. Eleanor M. Savko 2/23/2019 Earth’s geologic processes are the same now as in the past.

What is the Principle of Uniformitarianism? Eleanor M. Savko 2/23/2019 What is the Principle of Uniformitarianism?

The largest time frame: epoch, period, eon or era. Eleanor M. Savko 2/23/2019 The largest time frame: epoch, period, eon or era.

Eleanor M. Savko 2/23/2019 What is an eon?

Eon, era, period and epoch in which humans appeared. Eleanor M. Savko 2/23/2019

Eleanor M. Savko 2/23/2019 What are the Phranerzoic eon, Cenozoic era, Quaternary period and Holocene epoch?

Three periods of the Mesozoic era. Eleanor M. Savko 2/23/2019 Three periods of the Mesozoic era.

What is Triassic, Jurassic and Cretaceous? Eleanor M. Savko 2/23/2019 What is Triassic, Jurassic and Cretaceous?

Era that means “recent life”. Eleanor M. Savko 2/23/2019 Era that means “recent life”.

Eleanor M. Savko 2/23/2019 What is Cenozoic?

Eleanor M. Savko 2/23/2019 Two eons.

What are Phranerzoic and Precambrian? Eleanor M. Savko 2/23/2019 What are Phranerzoic and Precambrian?