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Chapter 6. Geophysics
Test 1
Read the statements below. For each question, mark the correct letter A,
B, C or D.
1. Geophysics is a branch of
A. Earth sciences, invasive study of the Earth.
B. physical sciences, study of geologic properties of the Earth by means
of intrusive methods.
C. Earth sciences, non-invasive study of the Earth.
D. space studies, non-invasive study of Solar System planets.
2. Gravitational and magnetic surveys
A. make use of natural fields of force.
B. involve elastic and electrical properties of rocks.
C. introduce energy into the ground.
D. use remanence and electrical polarizability properties.
3. Hydrocarbon exploration is the search for
A. hydrocarbon deposits above the Earth‟s surface.
B. petroleum, water and coal.
C. hydrocarbon deposits by geophysics methods.
D. hydrocarbon deposits beneath the Earth‟s surface.
4. The three principal methods used in petroleum exploration are
A. seismic, electromagnetic, induced polarization.
B. electrical, magnetic, gravity.
C. seismic, magnetic, gravity.
D. seismic, electromagnetic, gravity.