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{{short description|Mountain range in India, Pakistan and Nepal}} | |||
{{Use dmy dates|date=October 2019}} | {{Use dmy dates|date=October 2019}} | ||
{{Use Indian English|date=October 2019}} | {{Use Indian English|date=October 2019}} | ||
{{ | {{Infobox mountain | ||
|name=Sivalik Hills | |||
|photo=Ganges_and_the_Shivalik_ranges,_near_Rishikesh.jpg | |||
The '''Sivalik Hills''' | |photo_caption=Sivalik Hills and [[Ganges]] River | ||
|image_map=Sivallik Hills map.svg | |||
|image_map_caption=Sivalik Hills, highlighted in light red | |||
|range_coordinates={{coord|27|46|N|82|24|E|source:kolossus-fiwiki|display=inline,title}} | |||
|length_km=2400 | |||
|location=northern [[Indian subcontinent]] | |||
|parent=outer [[Himalayas]] | |||
|geology=[[Tertiary (geology)|Tertiary]] | |||
}} | |||
The '''Sivalik Hills''', also known as '''Churia Hills''', are a [[mountain range]] of the outer [[Himalayas]]. | |||
The [[literal translation]] of "Sivalik" is 'tresses of [[Shiva]]'.<ref name=Balokhra99>{{cite book |last1=Balokhra |first1=J. M. |year=1999 |title=The Wonderland of Himachal Pradesh |publisher=H. G. Publications |location=New Delhi |edition=Revised and enlarged fourth |isbn=978-81-8465-975-7}}</ref> The hills are known for their numerous fossils, and are also home to the [[Soanian]] [[Middle Paleolithic]] archaeological culture.<ref name=SchugWalimbe2016/> | |||
== Geography== | |||
The Sivalik Hills are a [[mountain range]] of the outer [[Himalayas]] that stretches over about {{cvt|2400|km}} from the [[Indus River]] eastwards close to the [[Brahmaputra River]]; they are {{cvt|10|-|50|km}} wide with an average elevation of {{cvt|1500|-|2000|m}}. Between the [[Teesta River|Teesta]] and [[Raidāk River]]s is a gap of about {{cvt|90|km}}.<ref name=Kohli2002>{{cite book |author=Kohli, M. S. |title=Mountains of India: Tourism, Adventure and Pilgrimage |year=2002 |chapter=Shivalik Range |pages=24–25 |chapter-url=https://books.google.com/books?id=GIs4zv17HHwC&pg=PA24 |publisher=Indus Publishing |isbn=978-81-7387-135-1}}</ref> | |||
They are known for their [[Neogene]] and [[Pleistocene]] aged vertebrate fossils.<ref>{{Cite journal |last=Kaur |first=A. P. |date=2022 |title=New fossil mammalian assemblages and first record of ostrich from the Pinjore (Pinjor) formation (2.58–0.63 Ma) of Siwalik Hills near Chandigarh, northern India |journal=Quaternary Science Reviews |volume=293 |article-number=107694 |doi=10.1016/j.quascirev.2022.107694 |bibcode=2022QSRv..29307694K}}</ref> | |||
==Geology== | ==Geology== | ||
{{ | Geologically, the Sivalik Hills belong to the [[Tertiary period|Tertiary]] [[Deposition (geology)|deposits]] of the outer Himalayas.<ref name=EB1911>{{cite EB1911 |wstitle=Siwalik Hills |volume=25 |pages=163–164}}</ref> They are chiefly composed of [[sandstone]] and [[Conglomerate (geology)|conglomerate]] rock formations, which are the solidified [[Detritus (geology)|detritus]] of the Himalayas<ref name=EB1911/> to their north; they are poorly consolidated. The sedimentary rocks comprising the hills are believed to be 16–5.2 million years old.<ref>{{cite journal |last1=Gautam |first1=P. |last2=Fujiwara |first2=Y. |year=2000 |title=Magnetic polarity stratigraphy of Siwalik Group sediments of Karnali River section in western Nepal |journal=Geophysical Journal International |volume=142 |issue=3 |pages=812–824 |doi=10.1046/j.1365-246x.2000.00185.x |bibcode=2000GeoJI.142..812G |doi-access=free|hdl=2115/38248 |hdl-access=free}}</ref> | ||
They are bounded on the south by a fault system called the Main Frontal Thrust, with steeper slopes on that side. Below this, the coarse alluvial [[Bhabar]] zone makes the transition to the nearly level plains. Rainfall, especially during the summer [[monsoon]], percolates into the Bhabar, then is forced to the surface by finer alluvial layers below it in a zone of springs and marshes along the northern edge of the [[Terai]] or plains.<ref name=Mani>{{cite book|title=Ecology and Biogeography in India|first=M.S.|last=Mani|publisher=Springer Science & Business Media |year=2012 |page=690}}</ref> | |||
They are bounded on the south by a fault system called the Main Frontal Thrust, with steeper slopes on that side. | |||
== Prehistory == | == Prehistory == | ||
{{see|South Asian Stone Age#Siwalik Hills}} | |||
[[File:Colossochelys atlas.jpg|thumb|right|Skeleton of the gigantic tortoise ''[[Megalochelys atlas]]'', the largest known to have ever existed, and one of the best known Sivalik fossils]] | |||
The Sivalik Hills are well known for fossils of vertebrates, spanning from the Early [[Miocene]], until the [[Middle Pleistocene]], around 18 million to 600,000 years ago.<ref>{{Cite journal |last=Nanda |first=A.C. |date=2002 |title=Upper Siwalik mammalian faunas of India and associated events |journal=Journal of Asian Earth Sciences |volume=21 |issue=1 |pages=47–58 |doi=10.1016/S1367-9120(02)00013-5|bibcode=2002JAESc..21...47N }}</ref><ref>{{Cite book |last=Patnaik |first=R. |chapter=Indian Neogene Siwalik Mammalian Biostratigraphy. An Overview |date=2013 |doi=10.7312/wang15012-017 |title=Fossil Mammals of Asia |place=New York Chichester, West Sussex |publisher=Columbia University Press}}</ref> | |||
{{ | Some of the best known fossils from the hills include ''[[Megalochelys atlas]]'', the largest known tortoise to have ever existed,<ref name="TEWG2015">{{cite journal |author1=Rhodin, A.G.J. |author2=Thomson, S. |author3=Georgalis, G. |author4=Karl, H.-V. |author5=Danilov, I.G. |author6=Takahashi, A. |author7=de la Fuente, M.S. |author8=Bourque, J.R. |author9=Delfino M. |author10=Bour, R. |author11=Iverson, J.B. |author12=Shaffer, H.B. |author13=van Dijk, P.P. |year=2015 |title=Turtles and tortoises of the world during the rise and global spread of humanity: first checklist and review of extinct Pleistocene and Holocene chelonians. |journal=Chelonian Research Monographs |volume=5 |issue=8 |pages=000e.1–66 |doi=10.3854/crm.5.000e.fossil.checklist.v1.2015 |doi-access=free |hdl-access=free |collaboration=Turtle Extinctions Working Group |hdl=11336/62240}}</ref> the sabertooth cat ''[[Megantereon|Megantereon falconeri]]'',''<ref name=":2">{{Cite journal |last=Stimpson |first=Christopher M. |date=May 2024 |title=Siwalik sabrecats: review and revised diagnosis of Megantereon fossils from the foothills of the Himalaya |journal=Royal Society Open Science |language=en |volume=11 |issue=5 |bibcode=2024RSOS...1131788S |doi=10.1098/rsos.231788 |doi-access=free|issn=2054-5703 |pmc=11076117 |pmid=38720790}}</ref>'' ''[[Sivatherium giganteum]],'' the largest known [[Giraffidae|giraffid]],<ref name=":0">{{cite journal |last1=Basu |first1=Christopher |last2=Falkingham |first2=Peter L. |last3=Hutchinson |first3=John R. |date=January 2016 |title=The extinct, giant giraffid ''Sivatherium giganteum'': skeletal reconstruction and body mass estimation |journal=[[Biology Letters]] |volume=12 |issue=1 |article-number=20150940 |doi=10.1098/rsbl.2015.0940 |pmc=4785933 |pmid=26763212}}</ref> and the ape ''[[Sivapithecus]]''.<ref>{{cite journal |last1=Kelley |first1=J. |date=1988 |title=A new large species of Sivapithecus from the Siwaliks of Pakistan |journal=Journal of Human Evolution |volume=17 |issue=3 |pages=305–324 |doi=10.1016/0047-2484(88)90073-5|bibcode=1988JHumE..17..305K }}</ref> | ||
''[[ | |||
Remains of the [[Lower Paleolithic|Lower]]-[[Middle Paleolithic]] [[Soanian]] culture dating to around 500,000 to 125,000 years [[Before Present]] were found in the Sivalik region.<ref>{{cite journal |title=Is the Soanian techno-complex a Mode 1 or Mode 3 phenomenon? A morphometric assessment |journal=Journal of Archaeological Science |volume=34 |issue=9 |pages=1434–1440 |doi=10.1016/j.jas.2006.11.001|year=2007|last1=Lycett|first1=S. J.|bibcode=2007JArSc..34.1434L }}</ref> Contemporary to the [[Acheulean]], the Soanian culture is named after the [[Soan River|Soan Valley]] in the Sivalik Hills of [[Pakistan]]. The Soanian archaeological culture is found across Sivalik region in present-day India, Nepal and Pakistan.<ref name="SchugWalimbe2016">{{cite book|editor1=Schug, G. R. |editor2=Walimbe, S. R. |title=A Companion to South Asia in the Past |date=2016 |publisher=John Wiley & Sons |location=Oxford, Chichester |isbn=978-1-119-05547-1 |author=Chauhan, P. |chapter=A decade of paleoanthropology in the Indian Subcontinent. The Soanian industry reassessed |page=39 |chapter-url=https://books.google.com/books?id=7xv-CwAAQBAJ&pg=PA39}}</ref> | |||
==Ecosystem== | |||
The [[carbon stock]] and [[carbon sequestration]] rates of the Churia forests differ among different forest management regimes and are highest in protected areas.<ref>{{Cite book |last1=Thapa |first1=H. B. |title=Churia forests of Nepal |url=http://www.dfrs.gov.np/downloadfile/CHURE_REPORT_1453193322.pdf |archive-date=2017-05-08 |archive-url=https://web.archive.org/web/20170508190912/http://www.dfrs.gov.np/downloadfile/CHURE_REPORT_1453193322.pdf |publisher=Forest Resource Assessment Nepal, Department of Forest Research and Survey, Ministry of Forests and Soil Conservation, Government of Nepal |date=2014 |lccn=2015515752}}</ref><ref>{{Cite journal |last1=Subedi |first1=B. |last2=Lamichhane |first2=P. |last3=Magar |first3=L. K. |last4=Subedi |first4=T. |date=2022 |title=Aboveground carbon stocks and sequestration rates of forests under different management regimes in Churia region of Nepal |url=https://www.nepjol.info/index.php/BANKO/article/view/45442 |journal=Banko Janakari |volume=32 |issue=1 |pages=15–24 |doi=10.3126/banko.v32i1.45442|doi-access=free }}</ref> Early twentieth-century engineering studies of the Punjab Himalaya and adjoining Siwalik Hills provided some of the earliest documented recognition of the environmental consequences of deforestation in the region. Work by L. B. Holland and H. M. Glover (1930) explicitly linked the disappearance of forests in the outer Himalaya to increased surface runoff, soil erosion, reduced groundwater retention, and more frequent and severe flooding, noting that formerly forested catchments had become degraded, sediment-laden, and less capable of sustaining stable water supplies.<ref>Holland, L. B.; Glover, H. M. (1930). ''Erosion in the Punjab Himalaya and its probable effect on water supplies''. Proceedings of the 18th Annual Congress of the Irrigation Branch, Buildings and Roads Branch, and Railway Branch North West Railway (Pakistan Engineering Congress). https://pecongress.org.pk/wp-content/uploads/2024/06/P18-PAPER135.pdf</ref><ref>Vardon, J. (1930). ''Some Interesting Tube Wells on the North Western Railway''. In: Proceedings of the 18th Annual Congress of the Irrigation Branch, Buildings and Roads Branch, and Railway Branch NWR (Pakistan Engineering Congress). https://pecongress.org.pk/wp-content/uploads/2024/06/P18-PAPER139.pdf | |||
</ref> | |||
==See also== | ==See also== | ||
[[File:River Ganga meandering through the Shivalik ranges, Rishikesh.jpg|thumb|upright|Ganga river cutting through the Sivalik hills]] | |||
<!-- Please help by converting this to an "Outline" article and/or create/add to a navigation template. --> | <!-- Please help by converting this to an "Outline" article and/or create/add to a navigation template. --> | ||
; Subranges of Sivalik | ; Subranges of Sivalik | ||
* [[Dundwa Range]] | * [[Dundwa Range]] | ||
* [[Margalla Hills]] | * [[Margalla Hills]] | ||
* [[Shivalik Fossil Park]] | * [[Shivalik Fossil Park]] | ||
; Geological subdivisions of Himalayas | ; Geological subdivisions of Himalayas | ||
* [[Indus-Yarlung suture zone]] | * [[Indus-Yarlung suture zone]] | ||
*[[Karakoram fault system]] | *[[Karakoram fault system]] | ||
*[[Nyenchen Tanglha Mountains]] | *[[Nyenchen Tanglha Mountains]] | ||
*[[Main Himalayan Thrust]] | *[[Main Himalayan Thrust]] | ||
* [[Lower Himalayan Range | * [[Lower Himalayan Range]] | ||
; Geographical subdivisions of Himalayas | ; Geographical subdivisions of Himalayas | ||
* [[Eastern Himalaya]] | * [[Western Himalayas]] | ||
* [[Eastern Himalaya]]s | |||
* [[Indian Himalayan Region]], [[Geology of Bhutan]] and [[Geology of Nepal]] | * [[Indian Himalayan Region]], [[Geology of Bhutan]] and [[Geology of Nepal]] | ||
* [[Jammu and Kashmir (union territory)]], [[Geography of Ladakh]], [[Gilgit-Baltistan]] and [[Geology of Pakistan]] | * [[Jammu and Kashmir (union territory)]], [[Geography of Ladakh]], [[Gilgit-Baltistan]] and [[Geology of Pakistan]] | ||
==References== | ==References== | ||
{{Reflist}} | {{Reflist}} | ||
{{GeoSouthAsia}} | {{GeoSouthAsia}} | ||
{{ | {{Himalayas}} | ||
{{Sister bar|auto=1|s=1911 Encyclopædia Britannica/Siwalik Hills}} | |||
{{Authority control}} | {{Authority control}} | ||
[[Category:Mountain ranges of the Himalayas]] | [[Category:Mountain ranges of the Himalayas]] | ||
[[Category: | [[Category:Mountain ranges of Asia]] | ||
[[Category:Mountain ranges of Bhutan]] | [[Category:Mountain ranges of Bhutan]] | ||
[[Category:Mountain ranges of India]] | [[Category:Mountain ranges of India]] | ||
| Line 69: | Line 76: | ||
[[Category:Hills of Himachal Pradesh]] | [[Category:Hills of Himachal Pradesh]] | ||
[[Category:Hills of Sikkim]] | [[Category:Hills of Sikkim]] | ||
[[Category:Himalayan subtropical broadleaf forests]] | [[Category:Himalayan subtropical broadleaf forests]] | ||
Latest revision as of 21:53, 21 March 2026
| Sivalik Hills | |
|---|---|
![]() Sivalik Hills and Ganges River | |
| Dimensions | |
| Length | 2,400 km (1,500 mi) |
| Geography | |
| Location | northern Indian subcontinent |
| Range coordinates | 27°46′N 82°24′E / 27.767°N 82.400°E |
| Parent range | outer Himalayas |
| Geology | |
| Type of rock | Tertiary |
The Sivalik Hills, also known as Churia Hills, are a mountain range of the outer Himalayas. The literal translation of "Sivalik" is 'tresses of Shiva'.[1] The hills are known for their numerous fossils, and are also home to the Soanian Middle Paleolithic archaeological culture.[2]
Geography[edit | edit source]
The Sivalik Hills are a mountain range of the outer Himalayas that stretches over about 2,400 km (1,500 mi) from the Indus River eastwards close to the Brahmaputra River; they are 10–50 km (6.2–31.1 mi) wide with an average elevation of 1,500–2,000 m (4,900–6,600 ft). Between the Teesta and Raidāk Rivers is a gap of about 90 km (56 mi).[3] They are known for their Neogene and Pleistocene aged vertebrate fossils.[4]
Geology[edit | edit source]
Geologically, the Sivalik Hills belong to the Tertiary deposits of the outer Himalayas.[5] They are chiefly composed of sandstone and conglomerate rock formations, which are the solidified detritus of the Himalayas[5] to their north; they are poorly consolidated. The sedimentary rocks comprising the hills are believed to be 16–5.2 million years old.[6]
They are bounded on the south by a fault system called the Main Frontal Thrust, with steeper slopes on that side. Below this, the coarse alluvial Bhabar zone makes the transition to the nearly level plains. Rainfall, especially during the summer monsoon, percolates into the Bhabar, then is forced to the surface by finer alluvial layers below it in a zone of springs and marshes along the northern edge of the Terai or plains.[7]
Prehistory[edit | edit source]

The Sivalik Hills are well known for fossils of vertebrates, spanning from the Early Miocene, until the Middle Pleistocene, around 18 million to 600,000 years ago.[8][9]
Some of the best known fossils from the hills include Megalochelys atlas, the largest known tortoise to have ever existed,[10] the sabertooth cat Megantereon falconeri,[11] Sivatherium giganteum, the largest known giraffid,[12] and the ape Sivapithecus.[13]
Remains of the Lower-Middle Paleolithic Soanian culture dating to around 500,000 to 125,000 years Before Present were found in the Sivalik region.[14] Contemporary to the Acheulean, the Soanian culture is named after the Soan Valley in the Sivalik Hills of Pakistan. The Soanian archaeological culture is found across Sivalik region in present-day India, Nepal and Pakistan.[2]
Ecosystem[edit | edit source]
The carbon stock and carbon sequestration rates of the Churia forests differ among different forest management regimes and are highest in protected areas.[15][16] Early twentieth-century engineering studies of the Punjab Himalaya and adjoining Siwalik Hills provided some of the earliest documented recognition of the environmental consequences of deforestation in the region. Work by L. B. Holland and H. M. Glover (1930) explicitly linked the disappearance of forests in the outer Himalaya to increased surface runoff, soil erosion, reduced groundwater retention, and more frequent and severe flooding, noting that formerly forested catchments had become degraded, sediment-laden, and less capable of sustaining stable water supplies.[17][18]
See also[edit | edit source]

- Subranges of Sivalik
- Geological subdivisions of Himalayas
- Indus-Yarlung suture zone
- Karakoram fault system
- Nyenchen Tanglha Mountains
- Main Himalayan Thrust
- Lower Himalayan Range
- Geographical subdivisions of Himalayas
- Western Himalayas
- Eastern Himalayas
- Indian Himalayan Region, Geology of Bhutan and Geology of Nepal
- Jammu and Kashmir (union territory), Geography of Ladakh, Gilgit-Baltistan and Geology of Pakistan
References[edit | edit source]
- ↑ Balokhra, J. M. (1999). The Wonderland of Himachal Pradesh (Revised and enlarged fourth ed.). New Delhi: H. G. Publications. ISBN 978-81-8465-975-7.
- ↑ 2.0 2.1 Chauhan, P. (2016). "A decade of paleoanthropology in the Indian Subcontinent. The Soanian industry reassessed". In Schug, G. R.; Walimbe, S. R. (eds.). A Companion to South Asia in the Past. Oxford, Chichester: John Wiley & Sons. p. 39. ISBN 978-1-119-05547-1.
- ↑ Kohli, M. S. (2002). "Shivalik Range". Mountains of India: Tourism, Adventure and Pilgrimage. Indus Publishing. pp. 24–25. ISBN 978-81-7387-135-1.
- ↑ Kaur, A. P. (2022). "New fossil mammalian assemblages and first record of ostrich from the Pinjore (Pinjor) formation (2.58–0.63 Ma) of Siwalik Hills near Chandigarh, northern India". Quaternary Science Reviews. 293 107694. Bibcode:2022QSRv..29307694K. doi:10.1016/j.quascirev.2022.107694.
- ↑ 5.0 5.1 Chisholm, Hugh, ed. (1911). . Encyclopædia Britannica. Vol. 25 (11th ed.). Cambridge University Press. pp. 163–164.
- ↑ Gautam, P.; Fujiwara, Y. (2000). "Magnetic polarity stratigraphy of Siwalik Group sediments of Karnali River section in western Nepal". Geophysical Journal International. 142 (3): 812–824. Bibcode:2000GeoJI.142..812G. doi:10.1046/j.1365-246x.2000.00185.x. hdl:2115/38248.
- ↑ Mani, M.S. (2012). Ecology and Biogeography in India. Springer Science & Business Media. p. 690.
- ↑ Nanda, A.C. (2002). "Upper Siwalik mammalian faunas of India and associated events". Journal of Asian Earth Sciences. 21 (1): 47–58. Bibcode:2002JAESc..21...47N. doi:10.1016/S1367-9120(02)00013-5.
- ↑ Patnaik, R. (2013). "Indian Neogene Siwalik Mammalian Biostratigraphy. An Overview". Fossil Mammals of Asia. New York Chichester, West Sussex: Columbia University Press. doi:10.7312/wang15012-017.
- ↑ Rhodin, A.G.J.; Thomson, S.; Georgalis, G.; Karl, H.-V.; Danilov, I.G.; Takahashi, A.; de la Fuente, M.S.; Bourque, J.R.; Delfino M.; Bour, R.; Iverson, J.B.; Shaffer, H.B.; van Dijk, P.P.; et al. (Turtle Extinctions Working Group) (2015). "Turtles and tortoises of the world during the rise and global spread of humanity: first checklist and review of extinct Pleistocene and Holocene chelonians". Chelonian Research Monographs. 5 (8): 000e.1–66. doi:10.3854/crm.5.000e.fossil.checklist.v1.2015. hdl:11336/62240.
- ↑ Stimpson, Christopher M. (May 2024). "Siwalik sabrecats: review and revised diagnosis of Megantereon fossils from the foothills of the Himalaya". Royal Society Open Science. 11 (5). Bibcode:2024RSOS...1131788S. doi:10.1098/rsos.231788. ISSN 2054-5703. PMC 11076117. PMID 38720790.
- ↑ Basu, Christopher; Falkingham, Peter L.; Hutchinson, John R. (January 2016). "The extinct, giant giraffid Sivatherium giganteum: skeletal reconstruction and body mass estimation". Biology Letters. 12 (1) 20150940. doi:10.1098/rsbl.2015.0940. PMC 4785933. PMID 26763212.
- ↑ Kelley, J. (1988). "A new large species of Sivapithecus from the Siwaliks of Pakistan". Journal of Human Evolution. 17 (3): 305–324. Bibcode:1988JHumE..17..305K. doi:10.1016/0047-2484(88)90073-5.
- ↑ Lycett, S. J. (2007). "Is the Soanian techno-complex a Mode 1 or Mode 3 phenomenon? A morphometric assessment". Journal of Archaeological Science. 34 (9): 1434–1440. Bibcode:2007JArSc..34.1434L. doi:10.1016/j.jas.2006.11.001.
- ↑ Thapa, H. B. (2014). Churia forests of Nepal (PDF). Forest Resource Assessment Nepal, Department of Forest Research and Survey, Ministry of Forests and Soil Conservation, Government of Nepal. LCCN 2015515752. Archived from the original (PDF) on 8 May 2017.
- ↑ Subedi, B.; Lamichhane, P.; Magar, L. K.; Subedi, T. (2022). "Aboveground carbon stocks and sequestration rates of forests under different management regimes in Churia region of Nepal". Banko Janakari. 32 (1): 15–24. doi:10.3126/banko.v32i1.45442.
- ↑ Holland, L. B.; Glover, H. M. (1930). Erosion in the Punjab Himalaya and its probable effect on water supplies. Proceedings of the 18th Annual Congress of the Irrigation Branch, Buildings and Roads Branch, and Railway Branch North West Railway (Pakistan Engineering Congress). https://pecongress.org.pk/wp-content/uploads/2024/06/P18-PAPER135.pdf
- ↑ Vardon, J. (1930). Some Interesting Tube Wells on the North Western Railway. In: Proceedings of the 18th Annual Congress of the Irrigation Branch, Buildings and Roads Branch, and Railway Branch NWR (Pakistan Engineering Congress). https://pecongress.org.pk/wp-content/uploads/2024/06/P18-PAPER139.pdf
