The Coalinga Oil Field surrounds the town of Coalinga in central California between Los Angeles and San Francisco. Discovered in the late 19th century, it became active in 1890 and is now the eighth largest oil field in California, containing approximately 58 million barrels of oil reserves extracted from over 1,600 active wells. Native Americans in the region had historically used tarry oil substances from natural seeps to waterproof baskets and for trade long before the arrival of Europeans.

1. Field/Lab
Assignment
Pt.1
By: Marissa Solario

2. oThe Coalinga Oil Field
surrounds the town of
Coalinga, about half-way
between Los Angeles and San
Francisco, to the west of
Interstate 5, at the foot
of the Diablo Range.
oDiscovered in the late 19th
century, it became active
around 1890, and is now the
eighth-largest oil field in
California, with reserves
totaling approximately 58
million barrels and over
1,600 active oil wells.
oOil was known in the
Coalinga area long before
the arrival of
Europeans, as the native
o As the climate in the region is semiarid Americans in the region
to arid, most of the native vegetation is used the tarry substance
grassland and low scrub. Areas of from natural seeps as
particularly dense oil development are lining for baskets, as well
almost entirely denuded of vegetation. as for trade.

3. Igneous Rocks
The oldest type of all rocks is the igneous rock.
The word "igneous" comes from a Greek word for
fire. Deep inside the earth, the temperature is
very high and the minerals there are in liquid form
called magma. As the magma pushes towards the
earth's surface, it starts to cool and turns into
solid igneous rock.
Because all igneous rocks do not cool the
same, they do not look all the same.

4. Examples 1 & 2
GRANITE: A common, coarse- PILLOW BASALT: Pillow
grained, light- Basalt rocks form when
colored, hard igneous rock water and basalt touch,
consisting chiefly of forming a distinctive
quartz, orthoclase or pillow shape. This pillow
microcline, and mica, used texture is very common in
in monuments and for underwater basaltic
building. flows.

5. Metamorphic Rocks
Metamorphic rocks are created when other types of
rocks are transformed due to great pressure and heat
within the earth.
These rocks form deep in the earth where the it is
very hot and there is a lot of pressure.
Metamorphic rocks begin changing at temperatures
of 100 - 800 degrees Celsius.

6. CHLORITE: Chlorite rocks are
hydrous aluminum
silicates, usually of
magnesium and iron. Chlorites
have a silicate layer
structure similar to that in
micas.
MARBLE: Many marbles contain
other minerals that are usually
silicates of lime or magnesia.
Diopside is very frequent and may
be white or pale green
Examples 3 & 4

7. S  There are three basic types of
e sedimentary rocks: Classic sedimentary
rocks, Chemical Sedimentary rocks and
d Organic sedimentary rocks.
i R  Rocks are always being broken into
smaller pieces called sediments and worn
m o away (eroded) by wind and water.
These little pieces flow along in rivers
e c and streams or blow over the land with the
wind and settle in a new place.
n k As they settle, they pile up and form
layers.
t s Sedimentary rocks are usually formed in
water.
a
 Many fossils are found in sedimentary
r rock.
y

8. Examples 5 & 6 CONGLOMERATE: This is a
rock that has pieces of
other rocks glued
SANDSTONE: Like
together to form one
sand, sandstone may be any
larger chunk. It is not
color, but the most common
very strong and doesn’t
colors are
have a lot of uses other
tan, brown, yellow, red, gr
than decoration.
ay and white. Some
sandstones are resistant to
weathering, yet are easy to
work. This makes sandstone
a common building and
paving material.

9. Reference Page
EARTH,(TarbuckandLutgens,2010)
http://en.wikipedia.org/wiki/Coalinga_Oil_Field
http://geology.com/
As much as I know I probably made
some mistakes, I immensely enjoyed
going out and doing this assignment.
Even putting this PowerPoint
together was a lot of fun 