Asia Kalér kadang-kadang didefinisikeun minangka subwewengkon Asia nu ngawengku bagean Asia Rusia. Istilah ieu teu dipake sacara lega. Kadang-kadang, Asia Kaler dipake keur netepkeun bagean Asia Wetan jeung/atawa Asia Tengah, kalayan Rusia di Asia dibagi jeung Eropa Wetan.
Phillips Illustrated Atlas of the World 1988 ngadefinisikeun Asia Kaler minangka wewengkon nu kalolobaannana urut USSR, bagean di wetaneun Pagunungan Ural. Definisi samemeh ayana USSR nyaeta taun 1882 ku Keane jeung Temple, nu ngadefinisikeun Asia Kaler minangka "dua babageana dministratif gede di Siberia Kulon jeung Wetan, nu ibukotana patuturut Omsk jeung Irkutsk". Ieu hartina, "hiji sistim pulitik nu lega, nu ngawengku ampir sapertilu buana, tur, kajaba ukur sabagean leutik wewengkon, langsung diparentah ku Rusia".
Taun 1875, Chambers ngalaporkeun yen populasi Asia Kaler aya 8 yuta.
Lempengan jeung daratan Asia Kaler ngawengku dataran handap Siberia Kaler; Angara Shield, jeung Tanjung Taimyr, dataran handap basisir, Putorama Range, Anabar Plateau, jeung Tunguska Plateau, katut Angara Plateau; jeung Lena-Vilyuy Basin. 
|Artikel ieu keur dikeureuyeuh, ditarjamahkeun tina basa Inggris.
Bantosanna diantos kanggo narjamahkeun.
The gemorphology of Asia in general is imperfectly known, although the deposits and mountain ranges are well known.
To compensate for new sea floor having been created in the Siberian basin, the whole of the Asian Plate has pivoted about a point in the New Siberian Islands, causing compression in the Verkhoyansk mountains, which were formed along the eastern margin of the Angara Shield by tectonic uplift during the Mesozoic Era. There is a southern boundary to this across the northern margin of the Alpine folds of Iran, Afghanistan, India, Nepal, and Bhutan, which at the east of Brahmaputra turns to run south towards the Bay of Bengal along the line of the Naga hills and the Arakan Yoma, continues around Indonesia, and follows the edge of the continental shelf along the eastern seaboard of China. The Eurasian Plate and the North American Plate meet across the neck of Alaska, following the line of the Aleutian Trench, rather than meeting at the Bering Straits.
Northern Asia is built around the Angara Shield, which lies between the Yenisey River and the Lena River. It developed from fragments of Laurasia, whose rocks were mainly pre-Cambrian crystalline rocks, gneisses, and schists, and Gondwana. These rocks can be found in the Angara Shield, the Inner Mongolian-Korean Shield, the Ordes Shield and the South-East Asia Shield. The fragments have been subject to orogenesis around their margins, giving a complex of plateaux and mountain ranges. One can find outcrops of these rocks in unfolded sections of the Shields. Their presence has been confirmed below Mesozoic and later sediments. 
There are three main periods of mountain building in Northern Asia, although it has occurred many times. The outer fold mountains, that are on the margins of the Shields and that only affected Asia north of the line of the Himalayas, are attributed to the Caledonian and Hercynian orogenies of the late Palaeozoic Era. The Alpine origeny caused extensive folding and faulting of Mesozoic and early Tertiary sediments from the Tethys geosyncline. The Tibetan and Mongolian plateaux, and the structural basins of Tarim, Qaidam, and Junggar, are delimited by major east-west lithospheric faults that were probably the results of stresses caused by the impact of the Indian Plate against Laurasia. Erosion of the mountains caused by this orogeny has created a large amount of sediment, which has been transported southwards to produce the alluvial plains of India, China, and Cambodia, and which has also been deposited in large amounts in the Tarim and Dzungarian basins.
Northern Asia was glaciated in the Pleistocene, but this played a less significant part in the geology of the area compared to the part that it played in North America and Europe. The Scandanavian ice sheet extended to the east of the Urals, covering the northern two thirds of the Ob Basin and extending onto the Angara Shield between the Yenesei River and the Lena River. There are legacies of mountain glaciation to be found on the east Siberian mountains, on the mountains of the Kamchatka Peninsula, on the Altai, on Tien Shan, and on other small areas of mountains, ice caps remain on the islands of Severnaya Zemlya and Novaya Zemlya, and several Central Asian mountains still have individual glaciers. Siberia itself has permafrost, ranging in depths from 30m to 600m and covering an area of 9.6 million km². 
Several of the mountainous regions are volcanic, with both the Koryat mountains and the Kamchatka Peninsula having active volcanoes. The Anadyr plateau is formed from igneous rocks. The Mongolian plateau has an area of basaltic lavas and volcanic cones. 
The Angara Shield also underlies the lowlands of the Ob River, but to the south and east in the Central Asian mountains and in the East Siberian mountains there are folded and faulted mountains of Lower Palaeozoic rocks.
- William Revill Kerr (2003). Tourism Public Policy, and the Strategic Management of Failure, 54, Elsevier.
- Augustus Henry Keane and Richard Carnac Temple (1882). Asia: With Ethnological Appendix, 345,493, London: Edward Stanford.
- William Chambers and Robert Chambers (1875). Chambers's Information for the People, 274–276, London and Edinburgh: W. & R. Chambers.
- Edwin Michael Bridges (1990). "Northern Asia" World Geomorphology, 124–126, Cambridge University Press.
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