Rocks from the Moon have been measured by radiometric dating techniques.They range in age from about 3.16 billion years old for the basaltic samples derived from the lunar maria, up to about 4.44 billion years old for rocks derived from the highlands.Trees undergo spurts in growth in the spring and summer months while becoming somewhat dormant in the fall and winter months.When a tree is cut down, these periods are exhibited in a cross section of the trunk in the form of rings.: The following is taken from several on-line sources, chiefly Illustrated Glossary of Geologic Terms by Steven M. Richardson (Englewood Cliffs, NJ, Prentice Hall, 1995); definitions conform generally, and in some cases specifically, to definitions given in Robert L Bates and Julia A Jackson (editors), Glossary of Geology, 3rd ed., American Geological Institute, Alexandria, Virginia, 1987.), and Radiometric Dating A Christian Perspective Dr. Wiens Division of Geological & Planetary Sciences California Institute of Technology reprinted from Graham Kendell archives. Elsberry's Archean The second oldest eon in Earth history.Richardson, professor of geology at Iowa State University (based on the glossary in Earth: An Introduction to Geologic Change, by S. It followed the Hadean, and lasted from around 3.8 to 2.5 billion years ago.
Furthermore, despite the widening range of archeological dating techniques - such as radiometric carbon dating, Uranium/Thorium and thermo-luminescence dating - not every work of art can be dated with great accuracy if the geological environment lacks important measurable elements.These ions are accelerated in an electric field through collimating slits and subject to a magnetic field which causes the ions to follow a curved path. By adjustment of the strength of the magnetic field and suitable placement of an ion collector, the different isotopes can be measured with precision.There are some things that affect these measurements.During the six Apollo landing missions, 2,415 samples weighing 380.96 kilograms (839.87 lb) were collected.Three Luna spacecraft returned with 326 grams (11.5 oz) of samples.Simply counting the number of rings will give one a fairly good idea of the age of the tree.