Changes

==Shallow coring==

==Shallow coring==

Surface [http://www.merriam-webster.com/dictionary/outcrop outcrop] samples of a given formation are assumed to be the best available example of that same formation at depth. If this isn't the case, though, another approach exists. A shallow coring program is a cost-effective way to obtain surface geologic data in areas of limited outcrops, severe surface weathering, thick vegetation, and/or thin alluvial cover. A seismic shot hole or water well drilling rig can be strategically positioned for collecting such samples.

Surface [http://www.merriam-webster.com/dictionary/outcrop outcrop] samples of a given formation are assumed to be the best available example of that same formation at depth. If this isn't the case, though, another approach exists. A shallow coring program is a cost-effective way to obtain surface geologic data in areas of limited outcrops, severe surface weathering, thick vegetation, and/or thin [[alluvial]] cover. A seismic shot hole or water well drilling rig can be strategically positioned for collecting such samples.

==External links==

==External links==

[[Category:Predicting the occurrence of oil and gas traps]]  

[[Category:Predicting the occurrence of oil and gas traps]]  

[[Category:Value of geological fieldwork]]

[[Category:Value of geological fieldwork]]