Magnetic Survey are carried out on land a well as marine environment and measure variations in the earth's magnetic field. The magnetic field observed by a magnetometer is a local disturbance is termed as 'anomaly' Magnetic field and is generally expressed in 'gammas'.
The observed anomaly expresses only the net effect of the induced and remnant magnetizations which usually have different directions and intensities of magnetization.
Magnetometer surveys are well suited for the detection and mapping of all sizes of ferrous objects. This includes anchors, chains, cables, pipelines, ballast stone and other scattered shipwreck debris, munitions of all sizes, aircraft, engines and any other object with magnetic expression
Interpretation of magnetometer can be quantitative as well as qualitative. The raw magnetometer data have to be reduced for the anomalies by applying corrections for earth normal magnetic field, diurnal variations, regional -residual separation , upward continuation etc. The identified anomalies have to be interpreted for the causative sources.
We at GeoMak professionally understand our client's requirement by giving the best possible geo-approach to suite his specific needs.
Providing following Services:
- Sand/Cap Rock surveys for land reclamation/beach replenishment Prefeasibility for Port& Harbors/Power Plants/ Desalination Plants Post dredging /channel access survey
- Seabed/Pre-engineering Surveys for pipelines/jetty constructions/bridge construction
- Pre lay/Pre Construction Surveys for offshore establishments Anchor Clearance Surveys for offshore establishments Debris/Salvage Surveys for lost objects at sea such as dredge cutter, anchor chains, ship wrecks, rudders, and pipelines