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en.wikipedia.org/wiki/Principle_of_original_horizontality

The Principle of Original Horizontality states that layers of sediment are originally deposited horizontally under the action of gravity . It is a relative dating ...

www.geologyin.com/2014/03/principle-of-original-horizontality.html

Mar 12, 2014 ... The Principle of Original Horizontality was proposed by the Danish geological pioneer Nicholas Steno (1638–1686). This principle states that ...

www.classzone.com/books/earth_science/terc/content/investigations/es2903/es2903page04.cfm

Limestone layers form in flat layers at the bottom of a shallow sea. These gray layers of limestone are exposed in the Mojave Desert, pointing up at an angle from ...

geology.isu.edu/Alamo/rocks/law_horizontality.php

The Law of Original Horizontality was first proposed by Danish geological pioneer Nicholas Steno in the 17th century. The law states that layers of sediment  ...

en.wikibooks.org/wiki/Historical_Geology/Steno%27s_principles

The principle of original horizontality states that sediment is originally laid down flat. This needs some ...

socratic.org/questions/what-is-the-principle-of-original-horizontality

Oct 21, 2015 ... It basically states that sediments are deposited horizontally by the action of gravity.

www.reference.com/science/principle-original-horizontality-d82828c8b8fc0e0a

The principle of original horizontality refers to an assumption by geologists that all layers of sedimentary rock were horizontal when they were formed. This is one  ...

faculty.evansville.edu/de3/b39902/PPoint/Geologic%20Time/sld006.htm

Slide 6 of 36.

study.com/academy/lesson/what-is-relative-dating-law-of-superposition-principles-of-original-horizontality-cross-cutting-relationships.html

Law of Superposition, Principles of Original Horizontality & Cross-Cutting .... In this lesson, we'll learn a few basic principles of stratigraphic succession and see  ...

www.revolvy.com/topic/Principle%20of%20original%20horizontality&item_type=topic

The Principle of Original Horizontality states that layers of sediment are originally deposited horizontally under the action of gravity . It is a relative dating ...