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The gravity anomaly, or "gravity hole", is centered southwest of Sri Lanka and Kanyakumari, the southernmost tip of mainland India, and east of the Horn of Africa.Due to weaker local gravity, the sea level in the IOGL would be up to 106 m (348 ft) lower than the global mean sea level (reference ellipsoid), if not for minor effects such as tides and currents in the Indian Ocean.
The Burckle crater is an undersea topographic feature about 29 kilometres (18 mi; 16 nmi) in diameter [1] in the southwestern Indian Ocean. A team of Earth scientists called the Holocene Impact Working Group proposes the feature to be an impact crater; these claims are disputed by other geologists. [2]
The largest absolute deviation can be found in the Indian Ocean Geoid Low, 106 meters below the average sea level. [18] Another large feature is the North Atlantic Geoid High (or North Atlantic Geoid Swell), caused in part by the weight of ice cover over North America and northern Europe in the Late Cenozoic Ice Age .
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The magnetic anomalies Bangui and Jackpine Creek, [145] the gravity anomalies Wilkes Land crater and Falkland Islands, [350] and others have been considered as being of impact origin. Bangui apparently has been discredited, [ 25 ] [ 351 ] but appears again in a 2014 table of unconfirmed structures in Africa by Reimold and Koeberl.
The Ocean Photographer of the Year awards announced the winners of its 2024 contest featuring stunning images of underwater wildlife. 12 award-winning underwater photos give rare glimpses beneath ...
Google Earth is getting a few more hits lately. An image has many suspecting that a giant sea creature is lurking in New Zealand waters. An engineer reportedly spotted the being in the Oke Bay ...
Marine gravity profiles made across Mid-Ocean Ridges showed a lack of a gravity anomaly, the Free-air anomaly is small or near zero when averaged over a broad area. [ 36 ] [ 37 ] This suggested that although ridges reached a height at their crest of two kilometers or more above the deep ocean basins, that extra mass was not related to an ...