Tree Rings -
trees grow rings each year on

the stem as a result of differential growth over
the seasons , this also changes over the years
and by cross referencing similar ring patterns in many stems (found) a
catalogue can be developed that can be used to determine age
Varves - glacial lakes (or ancient
bottoms) will have layers of sediment that is laid down in seasonal
patterns due to the nature of spring and fall runoff patterns and the type
of sediment carried by fast and slow velocity sediments
> experts can use these varves to determine age of sedimentary rock layers
Distinct Rock Layers
Key Beds
- volcanic ash , various debris from asteroid impacts such as iridium
(globally) or glass droplets (locally) , coal beds
Fossils
Original preservation - the plant or animal is
intact and has been preserved nearly whole
- preserving conditions include desiccation,
freezing,
pickling,
tar,
salt,
amber,
coal,
Altered Hard Parts - mineralization of
exo/endo/skeletons
Permineralization - mineralized solute fills
the space of fossil plant material and forms a fossil
Here is a religious alternative to the age of Earth and its life forms
Check it out online and think about some of the interesting refutations
of Earth's evolution of a long time span such as fossil trees that appear
to have fossilized while standing in several strata of a coal seam
Remember most of what we call truths are really theories.
All theories rest on
proof not faith. |