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In studying the cores, ANDRILL scientists from various disciplines are gathering detailed information about past periods of global warming and cooling. [2] A major goal of the project is to significantly improve the understanding of Antarctica's impact on the world's oceans currents and the atmosphere by reconstructing the behavior of Antarctic sea-ice, ice-shelves, glaciers and sea currents ...
The frozen continent of Antarctica was the last continent humanity set foot on. The first documented landings made below the Antarctic Circle took place in 1820, when Admiral Fabian Gottlieb von Bellingshausen and the crew of the Vostok and Mirny, as part of the Russian Antarctic Expedition, made land at Peter I Island and Alexander Island.
The Bransfield Strait, the result of this extension, is presumed to be four million years old or less; [2] magnetic anomalies created by the formation of new basaltic crust [6] and aligned with the axis of the Bransfield Rift [2] indicate that the newly formed oceanic crust in the Bransfield Strait is roughly 1.3 million years old. [2]
An ice core which contains samples of Earth’s atmosphere from five million years ago has been pulled up from the continent’s Ong Valley, researchers have said.
The deglaciation of the Antarctic Peninsula largely occurred between 18,000 and 6,000 years ago as an interglacial climate was established in the region. It initially started about 18,000 to 14,000 years ago with retreat of the ice sheet from the Pacific outer continental shelf and the continental margin within the Weddell Sea.
The Cambrian (/ ˈ k æ m b r i. ə n, ˈ k eɪ m-/ KAM-bree-ən, KAYM-) is the first geological period of the Paleozoic Era, and the Phanerozoic Eon. [5] The Cambrian lasted 51.95 million years from the end of the preceding Ediacaran period 538.8 Ma (million years ago) to the beginning of the Ordovician Period 486.85 Ma.
Earth’s magnetic field was once 30 times weaker than it is today. This change may have played a pivotal role in the blossoming of complex life, new research found.
Fresh water, which is essential for life, appeared on Earth about four billion years ago – 500 million years earlier than previously thought, research suggests. The findings, based on analysis ...