Wednesday, March 24, 2010

Metamorphic rock

Metamorphic rocks

Slate
: Slate is a foliated metamorphic rock that is formed through the metamorphism of shale. It is a low grade metamorphic rock that splits into thin and tiny pieces.
common use: roofing slate...for roofing.

Marble: Marble is a non-foliated metamorphic rock that is produced from the metamorphism of limestone. It is composed of calcium carbonate.
common use: counter tops or carvings and sculptures

Quartzite: Quartzite is a non-foliated metamorphic rock that is produced by the metamorphism of sandstone. It is composed of quartz.
common use: flooring or even in fire places or walling.

http://geology.com/

Monday, March 15, 2010

Igneous Rocks



Granite: This Igneous rock can be used to make counter tops it is a building stone. It is intrusive and is a felsic type of rock.

Basalt: Basalt is an extrusive igneous rock. Crushed basalt is used for railroad ballast.

Gypsum:Processed gypsum is used in industrial or building plaster, prefabricated wallboard, cement manufacture, and for agriculture.

Graphite:Graphite is the crystal form of carbon. It is used as a dry lubricant and steel hardener and for brake linings and the production of "lead" in pencils.

Copper:Copper is used in electric cables and wires, switches, plumbing; heating, electrical, and roofing materials; electronic components; industrial machinery and equipment; transportation; consumer and general products; coins; and jewelry.

Canadas Wind Farm

pros:

it will help our environment
we will have green energy. it will be better for our air.

cons:
its very expensive
it affects shoreline property values.
turbines aren't exactly a good view.

My opinion is that Canada should go through with this because it is helping us with the environment. It may cost a ton of money but there helping us too. The view and the fishing business is not really that big of a deal because we can import seafood and fish from other places or buy it at the grocery store. People can get used to the view too. We need clean air to live and to have nature as well.

We could protest against this. We can even talk to Canada about the cause and effects of installing turbines. We could convince them to wait a while and see what happens first as well.