43017
tpes of rocks
- igneous
- means formed when magma from volcanic eruptions becomes solid
again how fast it cools and where determins what kind of igneous
rock it will become
- basalt
- dark rock formed when lava cooled quickly on the surface
- GIANTS CAUSEWAY !
- GIANTS CAUSEWAY !
- dark rock formed when lava cooled quickly on the surface
- GRANITE
- specked with crystals cooled slowely under earths surface gived the
crystals time to grow crystals mica quartz feldspar
- used for kitchen worktops and fireplaces
- used for kitchen worktops and fireplaces
- specked with crystals cooled slowely under earths surface gived the
crystals time to grow crystals mica quartz feldspar
- pumice
- formed when lava cooled VERY quickly on the surface
- used for exploiting
skin
- used for exploiting
skin
- formed when lava cooled VERY quickly on the surface
- obsidian
- looks like black glass formed with volcanos erupt on the
ocean floor cooled almost instantly In the cold warer
- looks like black glass formed with volcanos erupt on the
ocean floor cooled almost instantly In the cold warer
- basalt
- means formed when magma from volcanic eruptions becomes solid
again how fast it cools and where determins what kind of igneous
rock it will become
- sedimentary
- large rocks are eroded down these piece settle on the sea bed as sediment layers build up the heat and
pressure turns the lowest layers into
- sedimentary rock
- conglomerate made of stones held together with clay or
calcium
- sandstone this is A porus rock made of layers of sand
- coal formed by dead plants
- shale made form tiny particles of clay and is also known as mudstone
- chalk made from the skeletons of sea creatures and
has lots of calcium in it .it can be many colours but if
white its chalk
Nota:
- [Image: http://www.google.co.uk/search?hl=en&gs_rn=8&gs_ri=psy-ab&cp=15&gs_id=1k&xhr=t&q=formation+of+sedimentary+rocks&bav=on.2,or.r_qf.&bvm=bv.44990110,d.d2k&biw=1366&bih=673&um=1&ie=UTF-8&tbm=isch&source=og&sa=N&tab=wi&ei=OcBlUdeJBqLJ0AW5y4HgCQ#imgrc=3FUY_5FPDCBYxM%3A%3Bi1MhwGZvq3dmiM%3Bhttp%253A%252F%252Fmrb-science.wikispaces.com%252Ffile%252Fview%252Frock-sequence.jpg%252F94726946%252Frock-sequence.jpg%3Bhttp%253A%252F%252Fmrb-science.wikispaces.com%252FRocks%3B850%3B709]
- conglomerate made of stones held together with clay or
calcium
- sedimentary rock
- large rocks are eroded down these piece settle on the sea bed as sediment layers build up the heat and
pressure turns the lowest layers into
- metamorphic
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