magnetic survey

A magnetic survey is a geophysical method used to measure variations in the Earth's magnetic field caused by different underground features. By using sensitive magnets and sensors, scientists can detect anomalies that indicate the presence of mineral deposits, caves, buried structures, or other geological formations. This non-invasive technique helps in exploration and mapping without the need for digging or drilling. It is commonly used in mineral exploration, archaeology, and environmental studies to gather data about what lies beneath the surface efficiently and accurately.