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The guidelines used to determine the relative ages of the rocks and events shown by a geologic cross-section is the Law of Superposition. It is the basic law of geochronology.

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What is the difference between a topographic profile and a geologic cross section?

A topographic profile is a plot showing the shape of the surface of the ground (so hills, hillocks, dips, valleys and the like). Whereas a geologic cross section shows the order and structure of soils and / or rocks below the ground surface. Geologic sections are typically created by first drawing a topographic profile of the section of interest then adding in the underlying strata. An example of the way they are created is given in the related links.


What are four large section on the geologic time scale called?

The four large sections on the geologic time scale are eons, eras, periods, and epochs. Each of these divisions represents a different scale of time with eons being the largest and epochs being the smallest.


How can you determine the relative age of a rock layer by looking at a cross section?

In the cross section, examine the different layers. The layer at the very bottom will be the oldest, and the one above would be slightly newer, and the one above that even newer, and so on, until the most recent rock layer is found at the top. Therefore, the layer you study will depend on those features. If you know the age of one layer, you will know the relative age of another.


What is a geologic cross section?

Taken along a line drawn on a map, it is a diagram of the structure and position of the rock layers present beneath the surface along this line. Geologists learn how to construct this 3rd dimensional information from a Geologic map, If you want to know how to get at an ore body hidden underground, you need a Geologist to work out where and how deep to dig. Cross sections will be needed to do this.


What is the importance of section modulus?

Sectional modulus of any section determines the strength of a section, i.e. if two sections made up of same material then the section with higher section moduls will carry higher load as the allowable stress is constant for a given material. in analysis of it is useful in determining the maximum stress value to which the section is subjected when the moment is konwn from the relation f=(M/Z) where f= stress at extreem fibre M= maximum bending moment on section Z= section modulus = (moment of inertia/ distance of extreem fibre from NA)

Related Questions

What are the guidelines used to determine the relative age of a rocks and events shown by a geologic cross-section?

The guidelines used to determine the relative ages of the rocks and events shown by a geologic cross-section is the Law of Superposition. It is the basic law of geochronology.


Coding information that pertains to an entire section is located?

The coding information that pertains to an entire section is located in the guidelines.


An unconformity is found in a geologic cross section What does this indicate happened in this area?

Erosion


What is the title for the information that preceded each section?

Guidelines


Will section 8 let you rent to a relative?

The Section 8 Voucher housing program helps low income families to pay their rent. Section 8 will not allow a person to rent to any relative.


Can a relative be your section 8 landlord in Phoenix AZ?

Section 8 is a federal program, and the answer, except under specific circumstances where the tenant is disabled and the relative is a caregiver, is no.


What section guidelines contain the definition of a separate procedure?

Medicine


What section guidelines contain the definition of the chief of complaint?

health


Where is specific coding information about each section located?

GUIDELINES


Where is the specific coding information about each section located?

Guidelines


Where is coding information that pertains to an entire section located?

The coding information that pertains to an entire section is located in the guidelines.


What are the community guidelines on WikiAnswers?

Please see the Related Links section of this answer.