Uploaded by shaahrazade

07- Earth Sciences, society & daily lifef

advertisement
英語演習:地質学の歴史
History of Geology
Earth Sciences, society & daily life
➢
➢
➢
➢
➢
➢
➢
➢
Minerals & metals
Agriculture
Energy
Buildings
Industry
Communication
Travels
Medicine...
英語演習:地質学の歴史
History of Geology
Society & daily life
Geology surrounds us daily. Geology is ubiquitous in our life.
However, we do not usually perceive it directly. Geology
encompasses:
The ground and soil, on which we live
Buildings and roads, on which we build
Raw materials, from the subsurface, of which many everyday
objects consist
Water resources, which flow below the ground surface
Natural hazards, to which we are exposed
The natural heritage, from which Japan benefits as a tourist
destination
The waste industry, which recovers useable raw materials from
used materials
The natural radioactivity (radon), which we are exposed to daily
History of Geology
Society & daily life
Raw materials:
Minerals & metals
英語演習:地質学の歴史
History of Geology
Society & daily life
Raw materials are a valuable good:
Lime and fluoride in toothpaste
Graphite in pencils
Lead in batteries
Salt on the dinner table
Trace elements in screens, on which you are reading this
text
Quartz sand, from which glass is manufactured
Water...
History of Geology
Society & daily life
➢
➢
All of us are confronted daily –
often unknowingly – confronted
with geology: from the ground
on which we live, past the
concrete as part of a building’s
foundation, to the copper in the
cell phone
A glass of water as twice
geology. The water comes from
the (geological) ground, the glass
is manufactured from quartz
sand, a mineral resource.
History of Geology
Society & daily life
➢
➢
➢
Modern industry, technology
and consumer products
require a vast array of
minerals, both abundant and
rare.
Their extraction and trade
forms a major part of most
national and global economy.
As the population and
demand for resources grow,
innovative technologies are
required to locate and extract
minerals.
Galena
Malachite
History of Geology
Society & daily life
Bauxite → Al
Phosporous calcite
→P
Hematite → Fe
Uranite → U
History of Geology
Society & daily life
Mining geology is an applied
science which combines the
principles of economic geology
and mining engineering to the
development of a defined
mineral resource. Mining
geologists and engineers work
to develop an identified ore
deposit to economically extract
the ore. Mining geology is the
process of exploration and
exploitation of ore or economic
minerals from the earth. It is
also called "winning"the ore
from the earth.
History of Geology
Society & daily life
Agriculture:
Soil & water assessment
英語演習:地質学の歴史
History of Geology
Society & daily life
Geology is important for our global food supply through
identifying ideal growing areas and conditions as well as
monitoring soil quality, geology's impact is commonly
forgotten in the areas of construction and infrastructure
whether in consideration of concrete and masonry for
roads or the gypsum that drywall is made of. Regardless of
your interests in the world it is some way or another related
to geology.
History of Geology
Society & daily life
➢
➢
Everything you consume originates
from the soil. Even meat products
derived from animals such as cows,
pigs, chicken and fish have to be fed
from plants and other organisms that
are in turn fed by minerals that come
from the Earth.
Therefore, the geological studies of soil
erosion and soil health, plus
identifying, predicting and accessing
sources of water for irrigation are all
integral to our ability to feed ourselves
now and into the future. Geologists
also help find sources of minerals that
are used to fertilize our agricultural
products and increase outputs.
History of Geology
Society & daily life
➢
➢
➢
The system “rock –
weathering – soil – vine –
wine” is complex
climate and weather
influence the quality of a
wine
For the character however,
the underlying rock, from
which the vine obtains
nutrients and water, also
plays an important role
History of Geology
Society & daily life
Nothing is more imperative to our
ability to survive than the
availability of drinkable water. Our
water comes from lakes, rivers and
underground aquifers that can
easily become contaminated if not
monitored and protected.
Geologists perform essential work
mapping out the configuration of
bodies of water both above and
underground and identifying
potential sources of pollution and
contamination that would affect
our ability to drink it, swim in it
and bathe with it.
History of Geology
Society & daily life
Energy:
Oil, natural gas, coal, wind,
sun, geothermal energy,
nuclear energy...
History of Geology
Society & daily life
➢
➢
➢
Many different types of
energy are impacted by
Geology
Fossil fuels have been created
over the course of hundreds
and thousands or even
millions of years as the
product of geological forces
Decomposing organic matter
trapped beneath sediment
and rock is transformed into
carbon-rich oil and gas over
many millennia.
History of Geology
Society & daily life
➢
➢
Many different types of energy
are impacted by Geology
Fossil fuels have been created
over the course of hundreds and
thousands or even millions of
years as the product of geological
forces. Decomposing organic
matter trapped beneath
sediment and rock is
transformed into carbon-rich oil
and gas over many millennia.
History of Geology
Society & daily life
➢
➢
Many different types of energy
are impacted by Geology
Fossil fuels have been created
over the course of hundreds and
thousands or even millions of
years as the product of geological
forces. Decomposing organic
matter trapped beneath
sediment and rock is
transformed into carbon-rich oil
and gas over many millennia.
History of Geology
Society & daily life
➢
➢
We then use this fuel to heat our
homes, power our vehicles, and
much more. The conveniences
and amenities of modern life
would be impossible without
fossil fuels, and without geologists
to help discover and extract these
sources of energy.
Geologists also play an important
role in the advancement of
alternative energies by studying
and searching for minerals to be
used in batteries and solar panels,
finding and harnessing
geothermal, tidal and
hydroelectric power, and more.
History of Geology
Society & daily life
➢
➢
➢
➢
Uranium occurs in a
number of different
geological environments.
Most Kazakh uranium
resources are
sedimentary
Most Canadian resources
are unconformity-related
Most Australian uranium
resources are in
unconformity-related
and iron oxide breccia
complex orebodies
History of Geology
Society & daily life
➢
➢
➢
Sandstone &
Conglomerate deposits:
Roll-front deposits cut
across bedding;Tabular or
Trend
Unconformity-related
deposits: gap in the rock
layers, Uranium deposits
can occur in the underlying
or overlying units
Tectonic, limestone,
Surficial, Volcanic, vein,
intrusive, metasomatic,
etc. deposits
History of Geology
Society & daily life
Construction:
Using rocks for building
Soil & bedrock assessment
英語演習:地質学の歴史
History of Geology
Society & daily life
Unfortunately in many places across the world where education is
inaccessible or even non-existent, geologic factors can have a big
role in a nations existence. For example in Turkey, where there is
reason to believe a large magnitude earthquake could happen at
any moment, contractors and government officials have not been
well-informed of the tectonic hazards that lurk beneath their cities.
Particularly in Istanbul, the country's economic, cultural and
historic hub as well as the most populous city totaling around 14
million residents, building codes have not been modified to
account of tectonic events such as earthquakes, buildings are not
earthquake resistant and many structures lack basic rebarreinforced concrete. The implications of a large earthquake
without the adequate infrastructure to sustain such and even
would be absolutely catastrophic.
History of Geology
Society & daily life
Stone is used in a variety of ways: for
building, as a bearer of messages, as
jewelry or other uses. The usage in
construction is quantitatively the most
important. Despite modern materials
such as concrete, asphalt, steel and glass,
dimension stone has to this day
remained a competitive product in
building and civil engineering
construction. Fountains, millstones and
milestones are notable historically
important applications of stone.
Furthermore, stone plays an important
role in sculpture, the manufacture of
jewelry and other art and technical
applications.
History of Geology
Society & daily life
History of Geology
Society & daily life
➢
➢
Dimension stone as building
material, utensils and carriers of
messages are part of our culture:
the oldest cultural artifacts are
similarly from stone, just as the
products of today’s artists or
engineers.
When planning a new
construction project, geology
plays a big part in picking the
location. The geologic features of
a parcel of land – its physical
structure and its soil makeup –
ultimately dictate its best use.
History of Geology
Society & daily life
➢
➢
In their natural state, rocks tell
the geologist their development
over the millions of years. Each
stone in the cultural object tells
its geological history – and its
“cultural history”!
In the artisanal and artistically
fashioned stone objects – be it a
sculpture or a building – there is
an overlap of geology,
construction, economic and
trade history.
History of Geology
Society & daily life
➢
➢
➢
Before anything can be safely and durably
constructed on a parcel of land, that land
should undergo a comprehensive “construction
materials” survey. Prior to the placement of a
single brick, engineers and scientists analyze the
soil’s important characteristics such as its
density, the depth of its bedrock, its chemistry,
and more important factors.
When surveys reveal potential complications
within the soil, expert geologic and
geotechnical engineers must consider a variety
of subsurface stabilization techniques.
Corrective action in regards to poor soil quality
is the only way to ensure a stable, long-lasting
foundation. Proper engineering from the start is
always the most cost-effective solution; it’s not
uncommon to see buildings constructed on
unstable land crack, lean, or even collapse over
time.
History of Geology
Society & daily life
➢
➢
➢
Before anything can be safely and durably
constructed on a parcel of land, that land
should undergo a comprehensive “construction
materials” survey. Prior to the placement of a
single brick, engineers and scientists analyze the
soil’s important characteristics such as its
density, the depth of its bedrock, its chemistry,
and more important factors.
When surveys reveal potential complications
within the soil, expert geologic and
geotechnical engineers must consider a variety
of subsurface stabilization techniques.
Corrective action in regards to poor soil quality
is the only way to ensure a stable, long-lasting
foundation. Proper engineering from the start is
always the most cost-effective solution; it’s not
uncommon to see buildings constructed on
unstable land crack, lean, or even collapse over
time.
History of Geology
Society & daily life
➢
➢
➢
Our ability to survive natural disasters such as
earthquakes, landslides, floods and volcanic
eruptions is enormously influenced by our ability
to predict their occurrence as much as possible, as
well as plan and engineer structures to mitigate
their impact.
Geologists play an integral role in studying seismic
activity, weather patterns and tectonic
movements to assist in preparing for potential
adverse events. They also assist in engineering
structures to withstand flooding, earthquakes and
more.
Any time you drive anywhere, you can also thank
a geologist for ensuring that the bridges and roads
have been safely designed with the stability of the
underlying sediments and rock in mind. The next
time you are in a skyscraper, you can also marvel
at the geologic engineering that ensured such a
structure had a properly stable foundation to
support itself.
History of Geology
Society & daily life
Industry, ingeenering,
transportation &
communication:
Necessity of glass, minerals,
metals & other raw
materials; energy
History of Geology
➢
➢
➢
Society & daily life
Precious minerals like gold,
silver and platinum are
used for so much more
than jewelry and coins
Cell phones, tablets,
laptops, cameras, music
players and other
electronics require a
variety of metals and
minerals like lithium,
copper, silicon, zinc,
aluminum and many more
These applications are
really just the tip of the
iceberg. The study of
geology truly touches our
lives every single day
whether we are aware of it
or not.
History of Geology
Society & daily life
Minerals can be found in mobile phones, personal computers,
cables, wind turbines, cars, make up, paint, paper and batteries
History of Geology
Society & daily life
Minerals can be found in mobile phones, personal computers,
cables, wind turbines, cars, make up, paint, paper and batteries
History of Geology
Society & daily life
Gold is used in a large variety of industies: Jewelry (the Primary Use of
Gold), Financial Gold (coin, Bullion, Backing), Electronics, Computers,
Dentistry, Medical Uses, Aerospace, Awards & Status Symbols,
Glassmaking, Gold Gilding and Gold Leaf...
History of Geology
Society & daily life
Gold is used in a large variety of industies: Jewelry (the Primary
Use of Gold), Financial Gold (coin, Bullion, Backing), Electronics,
Computers, Dentistry, Medical Uses, Aerospace, Awards & Status
Symbols, Glassmaking, Gold Gilding and Gold Leaf...
History of Geology
Society & daily life
Coltàn
History of Geology
Society & daily life
History of Geology
Society & daily life
Medicine:
Rocks & minerals effect on
health
History of Geology
Society & daily life
➢
Radon and asbestos represent
two health hazards that are
associated with geology
History of Geology
Society & daily life
➢
➢
Radon and asbestos represent
two health hazards that are
associated with geology
Some rocks or minerals can be
consumed as mineral
supplements
History of Geology
Society & daily life
➢
➢
➢
Radon and asbestos represent
two health hazards that are
associated with geology
Some rocks or minerals can be
consumed as mineral
supplements
Metals & minerals are used in
some chirurgical instruments
History of Geology
Society & daily life
➢
➢
➢
➢
Radon and asbestos represent
two health hazards that are
associated with geology
Some rocks or minerals can be
consumed as mineral
supplements
Metals & minerals are used in
some chirurgical instruments
Geological medicine: study of
the influence of geological
factors on the health of both
man and animals
英語演習:地質学の歴史
History of Geology
Society & daily life
Contrary to popular belief, geology has the highest job
security and highest wages of any natural science overall.
Geology is important in everyday life and it is easy to see
how virtually everything we see, touch, consume and
interact with is related to geology in some way or another
in that everything on Earth, came from the Earth. Whether
you consider the Oil and Natural Gas that fuel our growing
hunger for energy and manufacturing, Mining for
structural metals for infrastructure or precious metals for
use in high-tech devices.
By allowing us to find metals, raw materials & energy,
geology is actually the domain of science which has the
strongest influence on daily life.
Download