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Line 89: − [[File:5.jpg|250px|thumbnail|{{figure number|5|}}Lithology symbols<ref>http://www.bssaonline.org/content/92/7/2704/F14.large.jpg</ref>]] − [[File:6.jpg|250px|thumbnail|{{figure number|6|}}Contacts in geological maps<ref>http://college.cengage.com/geology/resources/protected/physicallab/thelab/geologicmaps/activities/activity1/activity1.htm</ref>]] − [[File:7.jpg|250px|thumbnail|{{figure number|7|}}Faults<ref>http://www.maine.gov/dacf/mgs/pubs/mapuse/surficial/surf-read.htm</ref>]] − [[File:8.jpg|250px|thumbnail|{{figure number|8|}}Strike and Dip<ref>http://www.state.nj.us/dep/seeds/rocksym.htm</ref>]] + + + + + +
→How To Read Geological Maps
==How To Read Geological Maps==
==How To Read Geological Maps==
Three main elements commonly found in a geological map are map units, contacts and faults, and strike and dip.
Three main elements commonly found in a geological map are map units, contacts and faults, and strike and dip.
<gallery mode=packed widths=200px heights=200px>
File:5.jpg|{{figure number|5|}}Lithology symbols<ref>http://www.bssaonline.org/content/92/7/2704/F14.large.jpg</ref>
File:6.jpg|{{figure number|6|}}Contacts in geological maps<ref>http://college.cengage.com/geology/resources/protected/physicallab/thelab/geologicmaps/activities/activity1/activity1.htm</ref>
File:7.jpg|{{figure number|7|}}Faults<ref>http://www.maine.gov/dacf/mgs/pubs/mapuse/surficial/surf-read.htm</ref>
File:8.jpg|{{figure number|8|}}Strike and Dip<ref>http://www.state.nj.us/dep/seeds/rocksym.htm</ref>
</gallery>
* Map units show different rock types and other earth materials, with the specific color and symbol.
* Map units show different rock types and other earth materials, with the specific color and symbol.
* Contacts between two maps showing where the different units of the types of rocks bordering the other rock types. A clear border is denoted by a thick line; an uncertain border by a dotted line.
* Contacts between two maps showing where the different units of the types of rocks bordering the other rock types. A clear border is denoted by a thick line; an uncertain border by a dotted line.