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How Old is it: Biostratigraphy of Ocean Rock Cores
Category: For Educators, Strategies for Outreach, Education, and Communication, Lesson Plans, Media, and Collaborative Research, For Graduate Students
Resource Type: Web-Based
Date Posted: 11/24/2007
 
Analyzing rock cores

How old is It? It's always one of the first questions that everyone asks about deep ocean rock cores. How do we really know how old these cores of rock and sediment are? Scientists studying paleohistory (past history of the Earth) need to know the answer to this question because it is important to gain a time context for every core they collect. Without the age, it is very difficult to tell a story, geologic or otherwise.

This activity will guide you through one of the methods scientists use call biostratigraphy, the use of microfossils to obtain ages for cores. The activity requires access to the School of Rock website to access an essential datasheet. [Source: Mark Leckie and Kristen St. John, School of Rock, Integrated Ocean Drilling Program] Grade level: 9-College.

LINK (http://www.joiscience.org/files/Joi%20Learning/schoolofrock/Library.html) >>
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