Correlation and Fossils WOOHOO!. Applying Principles of Relative Dating to Determine Geologic History of an Area The process of matching rocks or geologic.

Slides:

Advertisements

Similar presentations

Advertisements

Chapter 8 Geologic Time.

We know it’s BIG…but HOW do we know that?

Relative Age Dating Activity.

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

Chapter 6 Earth’s History

How can rocks be correlated? And Geologic Time Scale Interpreting Earth’s History.

The Relative Age of Rocks

Index fossils are another tool to determine the age of rock layers.

How do scientists construct the geologic history of an area?

Geologic Time Earth’s History.

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

Warm Up 1/8/08 An example of a geologic event that could be recorded in rocks is ____. a. a lunar eclipse c. a civil war b. a volcanic eruption d.

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

1 Earth’s History Planet Earth is approximately 4.6 billion years old –Rocks of the crust provide clues to Earth’s past By analyzing these clues we can.

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

Ch.6 Earth’s History. Who’s got the TIME? RELATIVE: order/sequence known, but not the actual date of occurrence. “Time Line” ABSOLUTE: actual date determined.

Evolution and Change Chapter Fourteen: Earth and Life History 14.1 Evidence from Rocks 14.2 How Earth Changes 14.3 Natural Selection.

Define the following terms at the top of your notes for Ch 21!

Geological Time Geology 12. Uniformitarianism “The present is the key to the past”- the fundamental principle that underlies most of geology. Put simply,

Ticking away the moments that make up a dull day …. Geologic Time.

How can rocks be correlated? And Geologic Time Scale Interpreting Earth’s History.

7.4.c Students know that the rock cycle includes the formation of new sediment and rocks and that rocks are often found in layers, with the oldest generally.

21.2 – Relative Age Dating How can you tell if one rock layer is older than another? How can you tell if one fossil is older than another? What is an index.

Science Earth’s Changing Surface Chapter 4 Section 2.

The Beginning: A trip through Geologic Time Historical info: Catastrophism: Modern Geology: James Hutton: Founded the idea of.

Relative Age Determined by Fossils

Understanding Geologic Time. How old is it? How do we know? Absolute dating – process of assigning a precise numerical age to an organism, object or.

Fossils and Radiometric Dating

12.2 The Geologic Time Scale KEY CONCEPT The geologic time scale divides Earth’s history based on major past events.

Chapter 9 Fossils: Sections 2, 3, 4, 5 in Brief

Principles of Historical Geology III Historical Geology – Principles III.

Relative Age dating Basic Principles.

Index Fossils and Geologic Time

GEOLOGICAL TIME. GEOLOGY NEEDS A TIME SCALE An investigation of the history of Earth Understanding how features of landscape developed and formed Reconstructing.

The Fossil Record. Learning Objective I can apply geologic rules to determine the relative age of fossils and rock layers in a geologic column by correctly.

1/14 Agenda & Bell work Review Study Guide Review Game Work on time-line DO Students will be able to describe the history of the Earth in detail DQ During.

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

Chapter 5.1 Before, your learned:  Living things exchange materials with their environments  Living things have different characteristics that they.

REMAINS OR TRACES OF PREHISTORIC LIFE Inclusions found in sediment & sedimentary rocks A Tool for interpreting the geologic past Important time indicators.

Age of Rocks Standard Infer the relative age of rocks and fossils from index fossils and the ordering of rock layers.

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

(7 th ) Chapter 8-2 Cornell Notes The Relative Age of Rocks.

Geologic Sequencing: The order of geologic events

Earth History- Table of Contents

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

TOPIC XIII: Interpreting Geologic History

Warm Up An example of a geologic event that could be recorded in rocks is ____. a. a lunar eclipse c. a civil war b. a volcanic eruption d. the occurrence.

How is relative age dating like a hamper of clothes?

Relative Age Dating What is it?

Relative Age dating Basic Principles.

EARTH’S HISTORY- the guiding Rules

Index fossils are another tool to determine the age of rock layers.

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

Index fossils are another tool to determine the age of rock layers.

Time and Stratigraphy Basics

KEY CONCEPT The geologic time scale divides Earth’s history based on major past events. Earth is approx. 4.5 billion years old.

Relative Vs. Absolute Dating of Rocks

Index fossils are another tool to determine the age of rock layers.

Correlating Rock Strata Notes

The History of Earth Chapter 6 Sections 1 and 2.

EARTH’S HISTORY.

The History of Earth Chapter 6 Sections 1 and 2.

The History of Earth Chapter 6 Sections 1 and 2.

Learning Objective: I will be able to explain how we use fossils to date rocks.

Geologic Time Notes By studying the characteristics of rocks and the fossils within them geologists can… interpret the environments in which the rocks.

The History of Earth Chapter 6 Sections 1 and 2.

Presentation transcript:

Correlation and Fossils WOOHOO!

Applying Principles of Relative Dating to Determine Geologic History of an Area The process of matching rocks or geologic events occurring at different locations of the same age is called The process of matching rocks or geologic events occurring at different locations of the same age is calledCORRELATION

Correlation of rock layers often relies upon fossils William Smith (late l700’s) noted that rock layers in widely separated areas could be identified and correlated by their distinctive fossil content William Smith (late l700’s) noted that rock layers in widely separated areas could be identified and correlated by their distinctive fossil content This led to the "principle of fossil succession“ This led to the "principle of fossil succession“succession Fossils succeed one another in a definite and determinable order, and therefore any time period can be recognized by its fossil content Fossils succeed one another in a definite and determinable order, and therefore any time period can be recognized by its fossil content

Index Fossils Index fossils - any animal or plant that is characteristic of a particular span of geologic time or environment. Index fossils - any animal or plant that is characteristic of a particular span of geologic time or environment. 2 criteria must be met 2 criteria must be met Life form lived over a wide geographic area – horizontal distribution Life form lived over a wide geographic area – horizontal distribution Life form existed for a short period of time – short vertical distribution Life form existed for a short period of time – short vertical distribution

NYS Index Fossil

Again….Corellation… Correlation- or CO-RELATION (two or more things related) is a critical tool in the reconstruction of Earth’s history. Correlation- or CO-RELATION (two or more things related) is a critical tool in the reconstruction of Earth’s history. Geologists look for a sequence of rocks (an “order”) that is the same in two or more areas, and can therefore say they are the same age! Geologists look for a sequence of rocks (an “order”) that is the same in two or more areas, and can therefore say they are the same age! Let’s check it out!! Let’s check it out!!