Engineering Geology Practice Test: Geological Investigations — Flashcards | Geology | FatSkills

Engineering Geology Practice Test: Geological Investigations — Flashcards

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Geological investigations are scientific studies that analyze the structure and composition of the earth. This includes both natural and human-made aspects. 

Geological investigations can include:
Studying the geological and tectonic structure of large regions
Solving problems related to stratigraphy, rock genesis, and rock age
Analyzing several geological aspects of a site, such as groundwater conditions and site lithology
Determining the general geologic setting of an area
Determining the geologic conditions related to the selection of a site 

Geological investigations are conducted for new projects and reviewed for existing structures.

One technique used in geological investigations is the gravity survey. This technique uses a gravimeter to measure the gravitational field of the subsurface. The data collected can be used to identify changes in the density of subsurface materials, which can indicate the presence of geological structures.

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Selection of excavation method depends on __________
Nature of rocks and ground
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