Principles of Radiocarbon (14C) Dating

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  • Created by: LF18
  • Created on: 09-04-22 10:07
H D C Y D T L R V Y S N B C W R J H N J O
Y X A E O W H A Y S T V S Y I P P E A N Y
C E B I H G H D R J R Y F Y L Q I K T D S
L V S M T R T I Y Y X C I R L X O G P W O
T R O U E O X O W A Y W N G A D M N C S N
D U L J M Q W M Q C K A C F R X S I P H K
X C U X L B F E A E D U R B D E F T S Y A
W Y T R A D H T J D J I E K L I D A I E Q
F A E H N Y W R B E K D M N I T X D Q L A
R C D O O T P I G V I V E T B M P E A E E
E E A O I K P C I I Y G N C B V E V K T P
B D T G T O V D W T E E T O Y R V I D I I
M H I O N P F A P C X C A S C C T T X L Q
U H N W E C O T Q A X G L M M Q N A C M G
N G G H V V M I H O C V D I R K D L U W W
S R L P N I J N N I D A A C U L H E G B B
S L W V O J V G M D M W T R G E H R U A J
A Y L A C Y I Q O A N O I A J E T L A H C
M I O F U O O R N R H N N Y F K H H P X K
M E N X I V U J W I V Y G S X B E N B P K
M X Q W Y V D O U R M I J F C Q O A K Y B

Clues

  • 14C forms in the upper atmosphere when 14N is bombarded by... (6, 4)
  • A method of measurement: the counting of beta particle emissions over a standard length of time (12, 6)
  • A type of dating: assigning a numerical age to an event (8, 6)
  • A type of dating: deciding whether one event predates or postdates another event (8, 6)
  • Calculates an age in years for geologic materials by measuring the presence of a short-life radioactive element, e.g. 14C. A type of this dating method is radiocarbon (14C) dating. (11, 6)
  • The exponential rate at which radioactive decay occurs as displayed on a graph (5, 5)
  • The number of protons and neutrons in the nucleus of a carbon atom (4, 6)
  • The process by which an unstable atomic nucleus loses energy by radiation and transform into stable isotopes, e.g. 14C -> 14N (11, 5)
  • This technique allows the construction of year-by-year annual chronologies which can be temporally fixed (linked to the present day) or floating, e.g. dendrochronology (11, 6)
  • Who won the Nobel prize for developing this technique in the 1940s? (7, 5)

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