Mineral Exploration

[Skull]

I am unsure as to which method and system does a better depth investigation of soil properties from surface to bedrock. And has the ability to display 2D/3D acquisition
Seismic Refraction
Resistivity
TEM
Any input will be welcome along with any brands of suystems.





Skull

[99thpercentile]

All of the methods that you listed can measure soil properties from the surface to bedrock, and they all can collect either 2D or 3D data. Don't think of geophysical methods as the be all or end all to solving your problem, think of them as individual tools in your toolbox. When you have a problem to solve you proceed from a general concept to specifics and as you move toward the specifics you will be narrowing down which method or combination of methods may help solve the problem.

What is your problem, apparently you are looking for something that is shallower that bedrock? What exactly are you looking for? How deep do you think it may be? How big is your target? Is it a localized target, or is a linear feature like a tunnel? What is the local geology? Do you have topographic maps and geologic maps for the site? All of this information will assist in selecting the correct method, if one exists. Unfortunately in geophysics there isn't always a solution to the problem. Unethical people may tell you that they can always solve your problem, but the honest practitioner will tell you if they can't help you.

[Skull]

Ryan.

I want to conduct mineral and gold exploration which is found before bedrock ( about 100ft + ). Have maps but the terrain is rugged.

[Miner49er]

All of the methods that you listed can measure soil properties from the surface to bedrock, and they all can collect either 2D or 3D data. Don't think of geophysical methods as the be all or end all to solving your problem, think of them as individual tools in your toolbox. When you have a problem to solve you proceed from a general concept to specifics and as you move toward the specifics you will be narrowing down which method or combination of methods may help solve the problem.

What is your problem, apparently you are looking for something that is shallower that bedrock? What exactly are you looking for? How deep do you think it may be? How big is your target? Is it a localized target, or is a linear feature like a tunnel? What is the local geology? Do you have topographic maps and geologic maps for the site? All of this information will assist in selecting the correct method, if one exists. Unfortunately in geophysics there isn't always a solution to the problem. Unethical people may tell you that they can always solve your problem, but the honest practitioner will tell you if they can't help you.

This is one of the most astute posts that I have ever seen on this forum in years. Good job, 99.

[geowizard]

Skull,

A good way to learn about these methods and a few more that aren't on your list is by reading more about the subject. I recommend a book recently published by Norton press called Applied Geophysics. The author, Dr. Robert Burger, teaches the subject and the text is written in an educational format. The book includes a CD that has software to demonstrate the response of various seismic, electrical, magnetic and gravity methods. Amazon.com is a good place to find this book.

Good luck on your exploration!

geowizard