Geological Maps Flashcards
(31 cards)
provide a visual
representation of the geology of a
region, including rock types, faults,
folds and other geological features
Geological Maps
The purpose of these maps is to help
geologists understand the geological
history and structure of a given area,
which can be used for a variety of
purposes, such as mineral
exploration, natural resource
management, and hazard
assessment.
Geological Maps
are mapmakers
who design user-friendly maps
Cartographers
are
specialized mapmakers who use
various technologies to build
models of the Earth’s surface and
its features for the purpose of
creating maps.
Photogrammetrists
The history of geological maps can be traced back
to the late ________, when geologists began to
map out the geology of various regions
18th century
One of the earliest geological maps was created by
_________ in ______, which depicted the rock
layers and coal seams in England and Wales.
William Smith
1815
In the early 20th century, advancements in
technology, such as a_______________, allowed geologists to create more accurate
and detailed geological maps.
erial photography and seismic
surveys
The development of computers in the latter half of
the 20th century further revolutionized the field,
allowing for the creation of
digital geological maps
and 3D models of the subsurface.
Types of Maps
Bedrock Maps
Surficial Maps
Structural Maps
Mineral Maps
Geological Hazard Maps
These maps show the
location and distribution of
different types of rock
formations at or near the
Earth’s surface
Bedrock Maps
this map can be used to identify
the age, composition, and
structure of rocks in an area,
as well as their potential for
use as natural resources
Bedrock Maps
These maps show the
distribution of different types
of surficial materials, such as
soils, sediments, and glacial
deposits
Surficial Maps
this map can
be used to study the history
of climate change, the
location of natural resources
like water and minerals, and
the potential for soil erosion
and landslides
Surficial Maps
These maps show the
orientation and location of
different types of geologic
structures, such as faults
and folds.
Structural Maps
this map can be used to study the
history of tectonic activity in
an area, as well as the
potential for earthquakes
and other natural hazards.
Structural Maps
These maps show the location and distribution of
different types of minerals and mineral resources
in an area.
Mineral Maps
These maps show the potential for natural
hazards, such as earthquakes, landslides, and
volcanic eruptions, in an area
Geological Hazard Maps
this map can be used to study
the geology of an area, as well as the potential
for economic development through mining and
other resource extraction.
Mineral Maps
this map can be used to identify areas that are at risk
for these types of events, as well as to develop
strategies for mitigating their effects.
Geological Hazard Maps
components of a map
- Legend/Key
- Scale
- North Arrow
- Contour Lines
- Geologic Formations
- Structural Features
- Cultural Features
- Grid Lines
- Marginal Information
- Explanatory Notes
A ratio or bar scale that indicates the
relationship between distances on the
map and actual distances on the ground.
Scale
A list or diagram that explains the
symbols and colors used on the
map, including rock formations,
geological structures, and other
features.
Legend/Key
Different rock units that are shown using distinctive colors or patterns, with each
formation labeled according to its age and type
Geologic Formations
Lines that connect points of equal
elevation, used to depict the topography
of the area
Contour Lines
