representing the surface of the earth (exer #1)

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planimetric map

TYPES OF MAP:

simplest and most common type of map;

contains the location of important geographic and cultural features like towns, cities, rivers, & roads

political map

TYPES OF MAP:

shows political boundaries surrounding countries, cities, & states

topographic map

TYPES OF MAP:

shows elevation through contour lines;

using elevation plotted on this map, one can properly delineate geomorphological features like mountains, valleys & ridges

bathymetric map, topographic

TYPES OF MAP:

similar to ____ map, this utilize contour lines to represent depth, or elevations if you are viewing it from the sea floor, at the bottom of a body of water;

trenches, ridges, & underwater plateaus can be viewed using this

geologic map, lithologies

TYPES OF MAP:

shows the distribution of rock types (also called _____) as they are seen on the surface of the earth;

various colors & symbols are used to represent these rocks and their spatial distribution within the contained area;

• essential for uses in mineral exploration, resource estimation, & hazard assessment

map title

PARTS OF A MAP:

particular portion of the earth represented;

may also include the type of map (ex. Topographic Map of Angat)

legend

PARTS OF A MAP:

list which defines or explains the symbols appearing in the map

scale bar

PARTS OF A MAP:

graphical representation of the relation between the map distance & the actual distance of the area on the map

compass arrow or north arrow

PARTS OF A MAP:

direction of the north & other main points of the compass

region or series name

PARTS OF A MAP:

____ where the featured area belongs to

index / quadrangle name / sheet name

PARTS OF A MAP:

indirect shortcut pertaining to the name of the map as listed in the database of the source

coordinate grid system / latitude & longitude

PARTS OF A MAP:

provides measurements on degrees, minutes or seconds to pinpoint the exact location of features using latitude & longitude

projection, reference ellipsoid / reference datum

PARTS OF A MAP:

transformation of latitude & longitude of a sphere into a plane;

mathematically defined space that approximates a geoid;

a standard position or level that measurements are taken from

magnetic declination or deviation

PARTS OF A MAP:

angle on the horizontal plane between the magnetic north & true north

• true north - where the lines of longitude meet at the geographic pole)

• magnetic north - where a compass needle points

index map / index to adjoining sheets or quadrangle location

PARTS OF A MAP:

position of the map with respect to adjoining sheets

source / credit / metadata

PARTS OF A MAP:

states the source of the map;

gives validity to the map (may include the publishing date & publisher)

map scale

this represent the relationship of the distance on the map with that of the actual distance;

usually noted as ratios (i.e. 1:500) or illustrated as scale bars

• both sides of the ratio represent the same units