20: Geological Resources (Exercises)
- Page ID
- 2060
\( \newcommand{\vecs}[1]{\overset { \scriptstyle \rightharpoonup} {\mathbf{#1}} } \) \( \newcommand{\vecd}[1]{\overset{-\!-\!\rightharpoonup}{\vphantom{a}\smash {#1}}} \)\(\newcommand{\id}{\mathrm{id}}\) \( \newcommand{\Span}{\mathrm{span}}\) \( \newcommand{\kernel}{\mathrm{null}\,}\) \( \newcommand{\range}{\mathrm{range}\,}\) \( \newcommand{\RealPart}{\mathrm{Re}}\) \( \newcommand{\ImaginaryPart}{\mathrm{Im}}\) \( \newcommand{\Argument}{\mathrm{Arg}}\) \( \newcommand{\norm}[1]{\| #1 \|}\) \( \newcommand{\inner}[2]{\langle #1, #2 \rangle}\) \( \newcommand{\Span}{\mathrm{span}}\) \(\newcommand{\id}{\mathrm{id}}\) \( \newcommand{\Span}{\mathrm{span}}\) \( \newcommand{\kernel}{\mathrm{null}\,}\) \( \newcommand{\range}{\mathrm{range}\,}\) \( \newcommand{\RealPart}{\mathrm{Re}}\) \( \newcommand{\ImaginaryPart}{\mathrm{Im}}\) \( \newcommand{\Argument}{\mathrm{Arg}}\) \( \newcommand{\norm}[1]{\| #1 \|}\) \( \newcommand{\inner}[2]{\langle #1, #2 \rangle}\) \( \newcommand{\Span}{\mathrm{span}}\)\(\newcommand{\AA}{\unicode[.8,0]{x212B}}\)
Q20.1 Where does it come from?
Responses will vary
Q20.2 The importance of heat and heat engines
Deposit Type | Is Heat a Factor? | If So, What Is the Role of the Heat? |
---|---|---|
Magmatic | Yes | Heat is necessary for melting of the rock to produce magma |
Volcanogenic massive sulphide | Yes | Heat is necessary for melting of the rock to produce magma |
Porphyry | Yes | Heat contained within the porphyritic intrusion drives the convection system |
Banded iron formation | No | Iron is deposited from cold ocean water |
Unconformity-type uranium | Probably | Uranium solubility is enhanced at higher water temperatures |
Q20.3 Sources of important lighter metals
Element | Silicon | Calcium | Sodium | Potassium | Magnesium |
---|---|---|---|---|---|
Source(s) | quartz sand | lime-stone | halite (NaCl) | sylvite (KCl) | dolomite ((Ca,Mg)CO3), magnesite (MgCO3), salt lakes and the ocean |
Q20.4 Interpreting a seismic profile
[SE after USGS at: http://walrus.wr.usgs.gov/infobank/p...ion/seis.html]