Geophysics

Question 1

Concerned with the physical processes and physical properties of earth and its surrounding space environment, and the use of quantitative methods for their analysis

Answer 1

Geophysics

Question 2

Objective of Geophysics

Answer 2

Locate or detect the presence of subsurface structures or bodies and determine their size, shape, depth, and physical properties

Question 3

A geometric peturbation in the distribution of a particular physical property in the rocks

Answer 3

Geophysical anomaly

Question 4

Lateral perturbations in rock density; magnetic ones are caused by lateral changes in rock magnetization, and seismic anomalies indicate variations in acoustic impedance

Answer 4

Gravity anomalies

Question 5

Objective of the survey due to the causative or target body

Answer 5

Signal

Question 6

Anything else but which may not contain useful info

Answer 6

Noise

Question 7

The utmost concern in geophysical survey

Answer 7

S/N ratio

Question 8

Nature of field:

Utilizes the field of the eart

Answer 8

Natural

Question 9

Nature of field: generating a field using a n artificial source

Answer 9

Artificial