Definition: relative age: The age of one thing, such as a geologic unit, in comparison to another. Relative ages are usually determined by crosscutting relationships and the number of impact craters on planetary surfaces.
Relative Age
The age of a geological feature referred to other features. For example, relative ages tell us the lunar maria and younger than the highlands.
Relativistic Jet Model ...
radioactive dating a technique that gives absolute ages of a material (rather than merely relative ages) from the number of radioactive active atoms remaining in the material.
They can all be addressed principally by understanding the geological characteristics of the planet - the types of rocks present, their absolute and relative ages, the distribution of subsurface water, the history of volcanic activity, ...
Comment on the relative age of the stars. Are they young or old? How can you tell?
Look at the photo of the Pleiades below. Is there any visible evidence to support your answer to question 5? What does this evidence suggest about the origin of stars?
The latter scenario appears to be more consistent with the relative ages of galaxies and superclusters, but no model is entirely successful. Another problem with HDM is that it cannot cluster enough to provide the dark matter in dwarf galaxies.
is that it was born from a giant impact between a Mars-sized body and the early Earth; the debris from this cataclysmic collision coalesced to form the Moon. As the Moon cooled it solidified into different mineral components, from which relative ages ...
While only a few multi-ring basins have been definitively dated, they are useful for assigning relative ages on the basis of stratigraphic grounds. The continuous effects of impact cratering are responsible for forming the regolith.
It is pretty easy to see the relative ages of clusters. To get actual values for ages, we need to use computer models that can tell us how long it takes for the various stars of a cluster to die (which, ...
Relative age inference in paleontology. Lethaia, v.13, p.239-248.
* Lubenow, M.L., 1992. Bones of Contention: A Creationist Assessment of Human Fossils. Baker Book House: Grand Rapids.
* Obradovich, J.D., 1993. A Cretaceous time scale.
 See also: Solar, Crater, Planet, Solar System, Earth
  
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