Sites

Geologic Time (Popularity: )
http://www.cotf.edu/ete/modules/msese/earthsysflr/geotime.html
A kid-friendly explanation of deep time.

Radiometric Time Scale (Popularity: )
http://pubs.usgs.gov/gip/geotime/radiometric.html
Discusses the uses of limitations of different radiometric dating techniques.

Strontium Isotope Stratigraphy (Popularity: )
http://www.ucl.ac.uk/geolsci/research/geochemistry/sis/
Describes this method, used primarily to date marine sediments, and provides access to the global seawater strontium curve and a user-friendly table for converting 87Sr/86Sr values to numerical ages.

Web Time Machine (Popularity: )
http://www.ucmp.berkeley.edu/help/timeform.html
Geologic time scale with links for each time interval.

Geological Time (Popularity: )
http://rainbow.ldeo.columbia.edu/courses/v1001/geotime2.html
Lecture notes on different methods of measuring geologic time.

Luminescence Dating Laboratory (Popularity: )
http://www.aber.ac.uk/~qecwww/luminescence/open.htm
Luminescence dating is a Quaternary dating method used to determine the age of a sample. The method was initially developed in the 1960's for dating pottery.

Berkeley Geochronology Center (Popularity: )
http://www.bgc.org/
Non-profit scientific research institution dedicated to establishing the history of the Earth, its various inhabitants, and its interactions with the rest of our Solar System, throughout the 4.6 billion years ...

A Radiometric Dating Resource List (Popularity: )
http://www.tim-thompson.com/radiometric.html
Large annotated directory of internet resources on radiocarbon and other radioactive dating methods, including creationists' views and scientific critiques of those views.

Geologic Time (Popularity: )
http://pubs.usgs.gov/gip/geotime/
USGS on-line publication about the relative and radiometric geologic time scales, age of the earth, index fossils, and related topics.

Radiometric Dating: A Christian Perspective (Popularity: )
http://www.asa3.org/ASA/resources/Wiens.html
Presents a broad overview of radiometric dating techniques and refutes various misconceptions held by Christians who doubt these methods because they contradict their beliefs in a young earth.

Links to Luminescence Laboratories (Popularity: )
http://www.aber.ac.uk/~qecwww/links/labs.htm
Short list of internet links maintained by Aberystwyth Luminescence Dating Laboratory.