Download Metamorphic rocks are very minor in Hawaii

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Metamorphic rocks are very minor in Hawaii.
Most metamorphism occurs within the walls of conduits or at the edges of intrusive
bodies such as laccoliths. Rocks are also changed by volcanic gases.
Olivine changes to serpentine or talc.
Pyroxene to chlorite.
Also occurs in the immediate vicinity of fumaroles where opal and kaolin are formed.
McDonald, G., A. Abbott, and F. Peterson. (1983). “Volcanoes in the Sea: the Geology
of Hawaii”. University of Hawaii Press.
Water Resource: Ghyben-Herzberb lens: Water pools in large lens-shaped bodies on
tropical islands. Principle aquifers of Hawaii are formed where freshwater collects in
basaltic lava flows or dike-impounded water.
Other resource: Coral Reefs. 166,000 hectares of living reef in the Hawaiian Islands.
More than 25% of all marine life is endemic to Hawaii.
Net Benefits = $360 million per year
Overall asset value = $10 billion
Used for fishing and recreation.
Critical habitat for marine species.
This presentation is awesome.
http://www.ctahr.hawaii.edu/scau/downloads/2009_0717_Evenson2.pdf
You can use a lot of the images there for the presentation. Especially the ones for the
water resource.
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