This data set was acquired with a ship-based BellAerospace BGM-3 Gravimeter during Maurice Ewing expedition EW9908 conducted in 1999 (Chief Scientist: Dr. Nathan Bangs). These data files are of MGD77
Interdisciplinary Earth Data Alliance (IEDA)2010-03-10 更新30
The radiometric, or gamma-ray spectrometric method, measures the natural variations in the gamma-rays detected near the Earth�s surface as the result of the natural radioactive decay of potassium, ura
Total magnetic intensity data measures variations in the intensity of the Earth's magnetic filed caused by the contrasting content of rock-forming minerals in the Earth's crust. The data are collecte
