Geology Reference
In-Depth Information
rocks and minerals. Various aspects of isotopic dating
are explained in the following chapter.
Another important feature of uranium is that the
235
U isotope is
fissile
, giving it the key role in nuclear
energy generation. However,
235
U accounts for only
0.71% of natural uranium. Reactors have in the past
operated successfully with natural uranium fuel, but
today's more efficient reactors require the
235
U to be
artificially
enriched
to 3-5%
235
U.
O'Neill, P. (1998)
Environmental Chemistry
, 3rd edition.
London: Blackie (Thomson Science).
Scerri, E.R. (2011)
The Periodic Table - a Very Short Introduction
.
Oxford: Oxford University Press.
Exercise
9.1
The reaction:
(
)
+
(
)
+
Fe SO
6
HO Fe OH
2
3
HSO
2
4
3
2
2
4
3
Further reading
is a balanced chemical equation: summing the total
amount of any constituent on the left-hand side
should equal that represented on the right-hand
side: 2 atoms of Fe, 3 atoms of S, and so on. Below
is a series of similar reactions (relating to super-
gene enrichment) which have not been balanced.
Work out (by trial and error) the integers required
in front of each molecule to produce a balanced
equation.
Archer, D. (2011)
Global Warming-Understanding the Forecast
.
2nd edition. Chichester: John Wiley and Sons, Ltd.
Barrett, J. (2002)
Atomic Structure and Periodicity
. Cambridge:
Royal Society of Chemistry.
Geim, A.K. and Kim, P. (2008) Carbon wonderland.
Scientific
American
, April 2008, 90-97.
Killops, S.D. and Killops, V.J. (2005)
An Introduction to Organic
Geochemistry
, 2nd edition. Chichester: John Wiley and
Sons, Ltd.
Krauskopf, K.B. and Bird, D.K. (1995)
Introduction to
Geochemistry
, 3rd edition. New York: McGraw-Hill.
Meislich, H., Nechamkin, H. and Sharefkin, J. (2011)
Organic
Chemistry
. 2nd edition. New York: McGraw-Hill.
Ninan, A. (2009)
Organic Chemistry - the Nature of Organic
Chemistry Explained
. Studymates.
(a) Fe
2
(SO
4
)
3
+ FeS
2
→ FeSO
4
+ S
(b) CuFeS
2
+ Fe
2
(SO
4
)
3
→ CuSO
4
+ FeSO
4
+ S
(c) FeSO
4
+ O
2
+ H
2
O → Fe
2
(SO
4
)
3
+ Fe(OH)
3
(d) MnO
2
+ H
+
+ 2Fe
2+
→ Mn
2+
+ H
2
O + Fe
3+
(e) ZnS + Fe
2
(SO
4
)
3
+ H
2
O → ZnSO
4
+ FeSO
4
+ H
2
SO
4
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