A geological compass is a tool used by geologists and surveyors to measure the direction, dip, and orientation of geological features such as faults, strata, and mineral veins. It is an essential tool in geological mapping and exploration.
The first geological compass was invented by German geologist Carl Friedrich Gauss in the early 19th century.
The design of the geological compass has evolved over time, with improvements to its accuracy and convenience.
Today, several companies manufacture geological compasses, with varying features and price points.
Brunton is a brand that manufactures a range of navigation and outdoor equipment, including geological compasses.
Silva is a Swedish brand that manufactures a range of outdoor equipment, including geological compasses.
Suunto is a Finnish brand that specializes in outdoor sports equipment, including geological compasses.
The Brunton Pocket Transit is a high-end geological compass that is widely used by professionals in the field. It features a 90-degree quadrangle mirror, a clinometer, and a sighting system for accurate readings.
The Silva Ranger is a lightweight and compact geological compass that is popular among hikers and outdoor enthusiasts. It features a declination correction scale and a magnifying lens for easy readings.
The Suunto KB-20 is a durable and reliable geological compass that is ideal for fieldwork. It features a fast settling time and a built-in clinometer for measuring vertical angles.
A geological compass is used to measure the direction, dip, and orientation of geological features such as faults, strata, and mineral veins. It is an essential tool in geological mapping and exploration.
The accuracy of a geological compass depends on several factors, including its design, quality, and calibration. High-end compasses can have an accuracy of up to 0.5 degrees.
While a geological compass is primarily used by geologists and surveyors, it can also be useful for hikers, outdoor enthusiasts, and amateur geologists who want to learn more about the geological features in their area.
To calibrate a geological compass, you need to ensure that the magnetic needle is level and aligned with the north-south axis. This can be done using a calibration tool or by aligning the compass with a known reference point, such as a known magnetic bearing.
Some smartphones have a built-in compass app that can be used to measure magnetic bearings. However, these apps are typically less accurate than a dedicated geological compass and may not have the necessary features for geological mapping.