For very old samples, just 1% contamination with modern carbon can make a sample with NO original C14 appear to be about 37,000 years old!
What Labs Do
Labs try to remove contamination by:
Washing with acids and bases
Using "blank" samples to measure background contamination
Careful handling procedures
But no cleaning method can guarantee contamination is removed!
Museum specimens are often treated with preservatives that contain carbon. This can make them impossible to date accurately!
Check Your Understanding
1. Modern carbon contamination makes samples appear:
○ A) Older ○ B) Younger ○ C) The same age ○ D) More accurate
2. Just 1% modern contamination can make an "infinite age" sample appear:
○ A) 100 years old ○ B) 3,700 years old ○ C) 37,000 years old ○ D) Still infinite
True or False
1. Laboratory cleaning can guarantee all contamination is removed. ○ True ○ False
2. Old carbon contamination makes samples appear younger. ○ True ○ False
RECALL: Explain the two types of contamination
LESSON 5: THE "OLD CARBON" TRICK
YOUTH Dating Helium Diffusion
Living Things That Appear Ancient!
Here's something amazing: some living organisms appear to be thousands of years old when tested with carbon dating - while they're still alive!
This is called the Reservoir Effect.
What is a Reservoir?
A "reservoir" is any source of carbon that has less C14 than the .
If an organism gets its carbon from a reservoir (instead of the air), it will appear much than it really is.
Example #1: Ocean Animals
Deep ocean water can be hundreds of years "old" in C14 terms.
Fish and shellfish that live in this water absorb this "old" carbon.
Result: Living sea creatures can appear 400-1,000+ years !
Example #2: Freshwater Snails
Real Case!
Living snails from freshwater springs in Nevada were tested.
Result: They dated at 27,000 years old!
Cause: The springs flowed through limestone, which released "old" carbon into the water.
Example #3: Plants Near Volcanoes
Volcanic gases contain CO2 with virtually no .
Plants near volcanoes absorb this CO2.
These plants (and animals that eat them) can appear thousands of years old while !
If living things can appear thousands of years old, what does that mean for dating dead things?
Check Your Understanding
1. The reservoir effect occurs because some organisms absorb:
○ A) Extra C14 ○ B) "Old" carbon with less C14 ○ C) No carbon at all ○ D) Too much oxygen
2. Living snails from Nevada springs dated at:
○ A) 0 years (accurate) ○ B) 270 years ○ C) 2,700 years ○ D) 27,000 years
True or False
1. All living things absorb carbon with the same C14 ratio. ○ True ○ False
2. Volcanic CO2 typically has normal C14 levels. ○ True ○ False
RECALL: Give two examples of the reservoir effect
SCRIPTURE MEMORY: 2 Peter 3:5-6
"For this they willingly are ignorant of, that by the word of Elohim the heavens were of old, and the earth... being overflowed with water, perished."
LESSON 6: LIMITS AND ANOMALIES
The Upper Limit
Carbon dating has a maximum age limit of about to 60,000 years.
Why? After about 10 half-lives, so little C14 remains that scientists can't tell it apart from background noise.
What This Means
Any C14 date over 50,000 years is really just saying: "We found a tiny signal that might be original C14, or might be contamination, or might be background noise."
The Mystery of "Old" Materials
Here's something strange: scientists have found detectable C14 in materials claimed to be millions of years old!
Dinosaur bones (claimed: 65+ million years) - C14 found!
If these materials are really millions of years old, they should have ZERO C14 left. Why do they still have detectable amounts?
Famous Anomalies
Wood in Rock
Wood found inside volcanic rock was tested.
Method
Result
C14 (wood)
~45,000 years
K-Ar (rock)
~45 million years
The wood appears 1,000 times than the rock around it!
Same Sample, Different Dates
The same sample sent to different labs often gives significantly dates.
Check Your Understanding
1. The practical age limit for C14 dating is about:
○ A) 5,000 years ○ B) 50,000-60,000 years ○ C) 1 million years ○ D) No limit
2. If coal is really millions of years old, it should contain:
○ A) Lots of C14 ○ B) Some C14 ○ C) Zero detectable C14 ○ D) Extra C14
True or False
1. C14 has been found in diamonds claimed to be billions of years old. ○ True ○ False
2. Different labs always give the exact same C14 date for the same sample. ○ True ○ False
RECALL: Why is there a limit to C14 dating?
LESSON 7: WHAT ABOUT THE FLOOD?
Genesis 7:11-12
"In the six hundredth year of Noah's life... were all the fountains of the great deep broken up, and the windows of heaven were opened."
The Biblical Timeline
According to Scripture, Yahuah created the world about years ago.
The global Flood occurred about 4,500 years ago.
If true, how could things date to 20,000 or 50,000 years?
The Flood Changed Everything!
If the Flood really happened, it would have dramatically changed the Earth's carbon levels.
1. Before the Flood
Much more plant life and animals (more biomass)
Possibly stronger magnetic field (less C14 production)
Lower atmospheric C14/C12 ratio
2. During the Flood
Massive amounts of carbon buried rapidly (becoming coal, oil, etc.)
Huge volcanic activity releasing "old" carbon
3. After the Flood
C14 ratio had to build up to current levels
This took hundreds or thousands of years
The Effect on Dating
If the pre-Flood atmosphere had less C14, then:
Pre-Flood organisms started with less C14
Carbon dating would make them look much than they really are!
A 4,500-year-old sample might appear to be 20,000-50,000 years old!
Reconciling the Data
C14 "Age"
Possible Real Age
50,000 years
~4,500 years (early post-Flood)
20,000 years
~4,000 years
5,000 years
~4,000-5,000 years
3,000 years
~3,000 years (accurate)
As we get closer to the present, C14 dates become more !
Check Your Understanding
1. If the pre-Flood atmosphere had less C14, things from that time would appear:
○ A) Younger than actual ○ B) Older than actual ○ C) The same age ○ D) Impossible to date
2. The Flood would have affected carbon dating by:
○ A) Burying massive amounts of carbon ○ B) Releasing volcanic carbon ○ C) Changing the C14 ratio ○ D) All of the above
True or False
1. The pre-Flood world probably had the same C14 levels as today. ○ True ○ False
2. A global flood would have no effect on carbon dating. ○ True ○ False
RECALL: How would the Flood affect carbon dating?
TEACH-BACK CHALLENGE
Explain to someone how the Genesis Flood could affect carbon dating.
Who did you teach?
LESSON 8: ASKING SMART QUESTIONS
You're Now Equipped!
You now know more about carbon dating than most people. Use this knowledge to ask smart questions!
The Five Questions to Always Ask
When someone tells you "Scientists dated this at X years old," ask:
What was actually measured? (Not interpreted - the raw data)
What assumptions were made? (Initial ratio? Closed system?)
What's the margin of error? (How uncertain is the date?)
Was it cross-checked? (Did other methods agree?)
Could there be other explanations? (Contamination? Reservoir effect?)
Measurement vs. Interpretation
What's MEASURED (observable)
What's INTERPRETED (assumed)
Current C14 level in sample
Starting C14 level was same as today
Counts per minute detected
Decay rate never changed
Sample composition now
No contamination occurred
Scripture is Our Foundation
Psalm 119:160
"The sum of Your word is truth, and every one of Your righteous judgments endures forever."
We don't reject good science. But we distinguish between:
Operational science - What we can observe, test, and repeat today
Historical science - Interpretations about the unobserved past
What You've Learned
C14 dating only works on materials
Every date depends on three unprovable
The atmosphere has changed over time
Contamination is a major problem
Reservoir effects make living things appear old
The practical limit is ~50,000-60,000 years
The Genesis Flood would dramatically affect results
Always ask smart !
Final Check
1. When evaluating a dating claim, you should FIRST ask:
○ A) Is it published? ○ B) What was actually measured vs. assumed? ○ C) How old is it? ○ D) Who did the study?
2. Historical science differs from operational science because it:
○ A) Uses different equipment ○ B) Interprets the unobserved past ○ C) Is always correct ○ D) Doesn't use math
True or False
1. Dating methods are perfect and never have errors. ○ True ○ False
