It is perhaps a little indelicate to ask our Mother Earth her age,
but Science asknowledges no shame and from time to time has
boldly attempted to wrest from her a secret which is
proverbially well guarded.
- Arthur Holmes, 1913
How to build an atomic bombCauses of sea level change
How a nuclaar reactor works
glaciationStratigraphy
expansion/contraction
change in volume of ocean ridge
transgression
onlapping sequenceregression
offlapping sequence
Useful links:
Earth Science Picture of the Day
Return to Historical Geology syllabus