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Gravity surveys are useful for profiling underground density structures. We propose a hybrid gravity survey method using gravimeters and gravity gradiometers to detect submarine ore deposits, such as massive sulfides buried below the seafloor. This paper describes a gravity gradiometer, which can be implemented in an AUV (Autonomous Underwater Vehicle) for this purpose. We developed a new gravity...
Gravity surveys are useful in profiling the underground density structure. We propose a hybrid gravity survey method using gravimeters and gravity gradiometers to detect submarine ore deposits. This paper describes the development of a gravity gradiometer for this purpose. The required resolution is estimated to be finer than approximately 10 E (= 1 × 10-8 /s2), considering typical dimensions of submarine...
We are developing a hybrid gravity survey system using a gravimeter and a gravity gradiometer to survey sub-seafloor density structure. This paper describes the development of a gravimeter with forced gimbals for this purpose. The aimed precision is about 0.1 mgal, one order better than sea surface gravimetry. After a successful feasibility study by using a Scintrex CG-3M gravimeter under a condition...
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