Topic: Correlation Correlation - Simple Matching of Layers.

Slides:

Advertisements

Similar presentations

How do we determine geologic age?

Advertisements

Fossil Evidence of Evolution

Notes on Fossils (from top left) are of a ammonite (marine); T-Rex; an ancient fish and a trilobite (marine). Earth/Space.

Topic VII Geologic History

Earth History- Table of Contents RELATIVE vs. ABSOLUTE LAWS UNCONFORMITIES GEOLOGIC SECTIONS.

Earth’s Geologic History Aim: How do we determine the chronology of earth’s events?

Principles of Relative Dating

How do scientists construct the geologic history of an area?

Dike A Fault 1 Fault 2 Dike B What is the sequence of events that shaped this geologic setting?

The Fossil Record and the Geological Timescale

MESOZOIC Trilobites, ammonites and many other species go extinct Trilobites, ammonites and many other species go extinct Dinosaurs now dominate- land,

Exploring Geologic Time. The 4.6 billion years of Earth’s history can be divided into 2 major time segments called eons.  Precambrian4600 Ma to 570 Ma.

Topic 13 - Correlation The process of correlation makes it possible to show that rocks or geologic events from different places are the same or similar.

READING THE ROCK RECORD. relative time: events are in sequence, but no actual dates absolute time: identifies actual date of event.

Announcements ALL late work due by 3:10 on 12/6. Final exam review will be given in class next week, following quiz, 12/11. Final essay on 12/19 & 12/20.

Correlation Correlation is the process of showing that rocks or geologic events from different places are of the same/similar age. The dark layers of rock.

The Geologic Time Scale / Correlation Using rock formations and fossil types to relate geologic materials from different regions.

Determining geological ages

Earth History- Table of Contents RELATIVE vs. ABSOLUTE LAWS UNCONFORMITIES GEOLOGIC SECTIONS.

 The Geological time scale is a record of the life forms and geological events in Earth’s history.  Scientists developed the time scale by studying.

Relative Age The age of a rock unit or event __________ to the age of another rock unit or event. In other words which layer or event came __________,

Paleontologist: studies life that existed in pre-historic times.

Happy Thursday (10/16) Write your thoughts on these pictures

Finding Relative Age. Do Activity 12-D Part II on p. 263.

Before the 1700’s, scientists thought that the Earth was only 6,000 years old. This mindset was based on biblical references.

1Daily Warm-Up Exercises Day 31 About how long has Earth existed? Earth has existed for about 4.5 billion years (or 4,500 million years). About how long.

How do we measure the Earths Age?

Geologic History A Journey Through Time How long do you think it took to form the Grand Canyon?

READING THE ROCK RECORD. relative time: events are in sequence, but no actual dates absolute time: identifies actual date of event.

GEOLOGIC HISTORY, FOSSILS, & RELATIVE DATING. Geologic History  Uniformitarianism  The idea that the same geologic processes that are shaping Earth.

AIM: How do Scientists correlate rock layers? Do Now: - Using your ESRT list the time periods of the 4 rock layers below from oldest to youngest. Devonian.

Scientists have determined the age of the Earth to be about 4.6 billion years old 4,600, 000, 000 years = 4.6 x 10 9 years (scientific notations you should.

How Can We Correlate Rock Outcrops? Using Rocks to Tell us a Story About History.

TOPIC 13 – GEOLOGIC HISTORY. DATING ROCKS There are two ways to get the ‘age’ of a rock: 1.) RELATIVELY ex) Rock layer ‘A’ is older than rock layer ‘B’

Geologic Time. The Geologic Time Scale  A summary of major events in Earth’s past that are preserved in the rock record  Divisions of Geologic Time.

FOSSILS & RELATIVE DATING

Geologic Sequencing: The order of geologic events

Earth History- Table of Contents

Ch.14 – Geologic Time Earth Science.

Question of the Day How can you use fossils to determine relative ages of rock layers? 179.

TOPIC XIII: Interpreting Geologic History

Geologic Time Scale Day 2

Do Now: In your notebooks, tell me what you know about fossils.

Rock Correlation.

CORRELATION Matching Rock layers in one place to another to see if they formed at the same time Can see continuity.

1 Earth’s History. 2 Planet Earth is approximately 4.5 X 10 9 years old –Rocks of the crust provide clues to Earth’s past By analyzing these clues we.

Geologic Time and Plate Tectonics Read Chapter 8

Geologic Time Scale 8th Grade Science.

The History of Life Ch. 17.

Fossils Earth Science 11.

Relative Dating.

DO NOW Turn in Review #3 Pick up notes and Review #4.

Earth’s History Review

AIM: How do Scientists correlate (match) rock layers?

Geologic Time Scale 8th Grade Science.

Welcome to Jeopardy.

Correlating Rock Strata Notes

Lesson 3: The Cambrian Explosion

EARTH’S HISTORY.

Daily Warm-Up Exercises

Earth’s History.

Aim: How can we explain relative dating?

Evidence of Evolution.

Evidence of Evolution.

Do Now: In your notebooks, tell me what you know about fossils.

Fun Fossil Friday!.

Precambrian. Precambrian Paleozoic Mesozoic Cenozoic.

TOPIC XIII INTERPRETING GEOLOGIC HISTORY

Chapter 19-1 “The Fossil Record” p

Fossils Earth Science 11.

Presentation transcript:

Topic: Correlation

Correlation -

Simple Matching of Layers

Localized correlation - ex) Grand Canyon: Similar rock layers are separated by a river

Large scale correlation – Ex) similar rock formations found in different states

Correlation Techniques: –"Walking the Outcrop"- looking at the rocks and seeing what they touch. –Similar Rock Characteristics- layers matched on the basis of similar colors, compositions, features, or by the same series of rocks “sandwiching" it.

Practice Correlations

What is different between these layers?

Besides Matching up the Rock Layers… A Few Other Correlation Techniques

Fossils - Ex) bones, shells, footprints, imprints

INDEX FOSSILS

*Index Fossils* 1)- 2)-

TRILOBITE INDEX FOSSIL CAMBRIAN PERIOD

Good Index Fossil or Bad? Homo Sapiens: existed 3-5 MY range: entire planet  Crocodile: virtually unchanged for 200MY range: found over most of the planet  T. Rex: existed 68-65MYA range: found on most continents  Western Spotted Owl: existed for 5MY range: found only on the W. coast USA 

Other Correlating Techniques

- - Volcanic Ash

Ash

Asteroid impacts can have the same effect. Example: the layer that marks the extinction of dinosaurs has characteristics of an asteroid impact.

Final Question: What are the characteristics of an index fossil? A) wide time range and wide geographic range B) narrow time range and wide geographic range C) narrow time range and narrow geographic range D) wide time range and narrow geographic range