Economics

Seismic Survey
Borehole
1. a deep, narrow hole made in the ground, especially to locate water or oil.
2. A narrow tube that digs deep to collect a rock sample of the ground beneath
Geochemical Analysis
1. Geochemical analysis can predict where petroleum, metals, water, and commercially valuable minerals can be located—a branch of the science known as geochemical prospecting.
Magnetic Survey
1. Magnetic surveys record spatial variation in the Earth's magnetic field. In archaeology, magnetic surveys are used to detect and map archaeological artefacts and features.
2. An aeromagnetic survey is a common type of geophysical survey carried out using a magnetometer aboard or towed behind an aircraft.
  1. The principle is similar to a magnetic survey carried out with a hand-held magnetometer, but allows much larger areas of the Earth's surface to be covered quickly for regional reconnaissance.
    1. The aircraft typically flies in a grid-like pattern with height and line spacing determining the resolution of the data (and cost of the survey per unit area).

Resource summary

	Created by Ed Barnard over 7 years ago