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Map of Sahul and Sunda Continental shelves of Western Australia, showing the Sahul Shelf in the northeast. More broadly defined, the Sahul Shelf extends southwest to encompass the Rowley Shelf. Geologically, the Sahul Shelf (/ s ə ˈ h uː l /) is a part of the continental shelf of the Australian continent, lying off the northwest coast of ...
The Sahul Shelf and the Sunda Shelf today. The area in between is called "Wallacea"Sundaland [1] (also called Sundaica or the Sundaic region) is a biogeographical region of Southeast Asia corresponding to a larger landmass that was exposed throughout the last 2.6 million years during periods when sea levels were lower.
The name "Sahul" derives from the Sahul Shelf, which is a part of the continental shelf of the Australian continent. During the past 18,000 to 10,000 years, rising sea levels overflowed the lowlands and separated the continent into today's low-lying arid to semi-arid mainland and the two mountainous islands of New Guinea and Tasmania.
Map of Sahul and Sunda. Geologically, the Sunda Shelf (/ ˈ s ʌ n d ə / [1]) is a south-eastern extension of the continental shelf of Mainland Southeast Asia.Major landmasses on the shelf include the Indonesian islands of Bali, Borneo, Java, Madura, and Sumatra, as well as their surrounding smaller islands. [2]
Sahul (/ s ə ˈ h uː l /), also called Sahul-land, Meganesia, Papualand and Greater Australia, [1] was a paleocontinent that encompassed the modern-day landmasses of mainland Australia, Tasmania, New Guinea, and the Aru Islands.
"Sunda" denotes the continental shelves or landmasses: the Sunda Shelf in the west and the Sahul/Arafuru Shelf in the east. Other terms associated with "Sunda" include the Sunda Island Arc or the arc of Sunda Islands, Sunda Fold or tectonic folding in the Natuna Sea, the Sunda Trench, and Sundaland.
Wallace's line is visible geographically when the continental shelf contours are examined. It figures as a deep-water channel that separates the southeastern edge of the Sunda Shelf from the Sahul Shelf. The Sunda Shelf links Borneo, Bali, Java, and Sumatra underwater to the mainland of southeastern Asia, while the Sahul Shelf connects ...
The Sahul Shelf and the Sunda Shelf today. The area in between is called "Wallacea". A less rigid version of the earlier wave migration theory is the Core Population Theory first proposed by anthropologist Felipe Landa Jocano of the University of the Philippines. [27]