Earth, Areas of glacial depression and postglacial rebound
Prominent negative areas of the geoid include Antarctica and northern North America centred over Hudson Bay. Both of these regions were covered with ice sheets during Pleistocene time (about 10,000 to 1,700,000 years ago), and it is believed the negative anomalies are related to a residual depression of the lithosphere that remained after the ice retreat. When an ice sheet develops
posted by MarriedStreet @ 11:30 AM
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