geophysical signatures
31Cold seep — Marine habitats Tube worms are among the dominant species in one of four cold seep community types in the Gulf of Mexico. Littoral zone …
32Iceland plume — The Iceland Plume is an upwelling of anomalously hot rock in the Earth s mantle beneath Iceland whose origin probably lies at the boundary between the core and the mantle at ca. 2880 km depth. It is generally thought to be the cause of the… …
33Magnetic cloud — A magnetic cloud is a transient event observed in the solar wind. It was defined in 1981 by Burlaga et al. 1981 as a region of enhanced magnetic field strength, smooth rotation of the magnetic field vector and low proton density and temperature… …
34Noachien — Le Noachien est la première des trois époques (ou le premier éon) de la géologie martienne la suivante est l Hespérien, caractérisé par une intense activité volcanique. Les terrains noachiens sont caractérisés par leur forte cratérisation et,… …
35Hydrology — Water covers 70% of the Earth s surface. Hydrology is the study of the movement, distribution, and quality of water on Earth and other planets, including the hydrologic cycle, water resources and environmental watershed sustainability. A… …
36X-ray astronomy — X rays start at 0.008 nm and extend across the electromagnetic spectrum to 8 nm, over which the Earth s atmosphere is opaque. X ray astronomy is an observational branch of astronomy which deals with the study of X ray observation and detection… …
37Planetshine — Saturn s moon Iapetus lit by Saturnshine. This is an enhanced picture; the Saturn light is too faint by contrast to be visible to the unaided human eye …
38Anthropocene — Holocene Epoch This box: view · talk · edit ↑ Pleistocene …
39Mantle (geology) — For other uses, see Mantle (disambiguation). Earth cutaway from core to exosphere. The mantle is a part of a terrestrial planet or other rocky body large enough to have differentiation by density. The interior of the Earth, similar to the other… …
40Narrow bipolar pulse — Narrow bipolar pulses are high energy, high altitude, intra cloud electrical discharges associated with thunderstorms. NBP are similar to other forms of lightning such as return strokes and K changes, but produce an optical emission of at least… …
