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Virtual Dating: Isochron and Radiocarbon - Geology Labs On-line
Entry ID: Virtual_Dating-02
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Summary
Abstract: Virtual Dating models the theory and processes whereby ages of older rocks (> 100 million years) are determined from the Isochron method applied to Rb/Sr isotopic compositions. This activity also includes a C-14 option for once-living materials that are less than 50,000 years old. A "demo" version for instructors is also on-line.

Radioactive Isotopes - the "Clocks in Rocks": Numerical and Relative Ages for Rocks. A numerical (or "absolute") age is a specific number of years, like 150 million years ago. A relative age simply states whether one rock formation is older or younger than another formation. The Geologic Time Scale was originally laid out using relative dating principles.

Radiocarbon Dating: The radiocarbon dating method was developed in the 1940's by Willard F. Libby and a team of scientists at the University of Chicago. It subsequently evolved into the most powerful method of dating late Pleistocene and Holocene artifacts and geologic events up to about 50,000 years in age. The radiocarbon method is applied in many different scientific fields, including archeology, geology, oceanography, hydrology, atmospheric science, and paleoclimatology. For his leadership, Libby received the Nobel Prize in Chemistry in 1960.

Related URL
Link: VIEW PROJECT HOME PAGE
Description: Virtual Dating Isochron for rocks and minerals.

Link: VIEW PROJECT HOME PAGE
Description: Virtual Dating Radiocarbon (Carbon-14).

Link: VIEW RELATED INFORMATION
Description: Virtual Dating Demo If you just want to do a quick run-through of the activity, try the "Demo" version-- answer checking and other feedbacks are not implemented.
Service Citation
Originators: Gary A. Novak
Title: Virtual Dating: Isochron and Radiocarbon - Geology Labs On-line
Provider: Virtual Courseware
URL: http://www.sciencecourseware.org/VirtualDating/
Parent SERF
This data set description is a member of a collection. The collection is described in
Virtual_Geology-00
ISO Topic Category
CLIMATOLOGY/METEOROLOGY/ATMOSPHERE
GEOSCIENTIFIC INFORMATION
OCEANS
Use Constraints
Technical Considerations and System Requirements

Much of Virtual Dating consists of Java applets and various
routines written in JavaScript. You must use a browser with Java
and it must be Java enabled. Virtual Dating works best with
Netscape Communicator 4 or Microsoft Internet Explorer 4 with
JavaScript enabled. It has been tested on Netscape Communicator
4.05 and Microsoft Internet Explorer 4.01 for both Windows
95/98/NT and MacOS 8.1 on the PowerPC. Minimum memory
requirements are not known at this time. It has been
successfully run on Windows 95 using Netscape Communicator with
16MB, and on MacOS with 32MB with the above listed browsers. If
you are running Netscape on the Mac, you will have more success
with Virtual Dating if you increase the Suggested Memory Size to
15000K or more. This doesn't mean that computers and settings
with less memory will not work, but having sufficient memory
seems to be critical.
Service Provider
Virtual Courseware, California State University, Los Angeles

Service Provider Personnel
Name: GARY NOVAK
Phone: 323-343-2406
Fax: 323-343-2435
Email: gnovak at calstatela.edu
Contact Address:
Department of Geology
California State University, Los Angeles
City: Los Angeles
Province or State: CA
Postal Code: 90032-8203
Country: United States
Distribution Media
Distribution_Media: Electronic
Distribution_Format: HTML, Java
Personnel
GARY NOVAK
Role: TECHNICAL CONTACT
Phone: 323-343-2406
Fax: 323-343-2435
Email: gnovak at calstatela.edu
Contact Address:
Department of Geology
California State University, Los Angeles
City: Los Angeles
Province or State: CA
Postal Code: 90032-8203
Country: United States

TYLER B. STEVENS
Role: SERF AUTHOR
Phone: (301) 614-6898
Fax: 301-614-5268
Email: Tyler.B.Stevens at nasa.gov
Contact Address:
NASA Goddard Space Flight Center
Global Change Master Directory
City: Greenbelt
Province or State: MD
Postal Code: 20771
Country: USA
Creation and Review Dates
SERF Creation Date: 2000-09-11
SERF Last Revision Date: 2010-10-25
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