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[[Berkas:Delicate Arch LaSalle.jpg|upright=1.35|jmpl|[[Delicate Arch]] in [[Arches National Park]], [[Utah]], United States]]
[[Berkas:Delicate Arch LaSalle.jpg|upright=1.35|jmpl|[[Delicate Arch]] in [[Arches National Park]], [[Utah]], United States]]
'''Lengkungan alami''', '''jembatan alami''' atau kadang disebut '''lengkungan batu''' adalah [[susunan batu]] alami dengan [[lengkungan]] yang terdapat sebuah lubang di bawahnya. Lengkungan alami umumnya terdapat pada tebing daratan, tebing pantai, sirip, atau tumpukan yang disebabkan oleh erosi air laut, sungai, atau proses pelapukan oleh cuaca.<ref>[http://www.naturalarches.org/archinfo/faq.htm Natural Arch and Bridge Society], FAQ.</ref><ref>[http://www.naturalarches.org/big-FairyBridge.htm Big 14 Tour - Fairy Bridge], The Natural Arch and Bridge Society</ref><ref>{{cite web|url=http://www.nature.nps.gov/geology/parks/arch/ |title=Geology Resources, Arches National Park |publisher=National Park Service |date= |accessdate=2015-12-23}}</ref><ref>Jett, Stephen C.[http://www.naturalarches.org/china/journal.html#fairybridge China Diary], The Natural Arch and Bridge Society</ref><ref>[http://www.naturalarches.org/big-FairyBridgeMeasurement.htm Measurement of Fairy Bridge]</ref><ref>[http://www.trekearth.com/gallery/Oceania/Australia/photo206866.htm Trek Earth]</ref>
'''Pelengkung''' atau '''busur''' ({{Lang-en|arch}}) adalah suatu bentuk lahan atau bentang alam berupa [[Pelengkung|lengkungan]] dengan sebuah lubang di bawahnya. Bentukan pelengkung umumnya terdapat pada tebing daratan, tebing pantai, sirip, atau tumpukan yang disebabkan oleh erosi air laut, sungai, atau proses pelapukan oleh cuaca.<ref>{{Cite journal|last=Sunarto|date=2008|title=Hakikat Bencana Kepesisiran dalam Perspektif Geomorfologi dan Upaya Pengurangan Risikonya|url=https://i-lib.ugm.ac.id/jurnal/download.php?dataId=11508|dead-url=yes|journal=Jurnal Kebencanaan Indonesia|volume=1|issue=4|pages=211-228|archive-url=https://web.archive.org/web/20200601075541/https://i-lib.ugm.ac.id/jurnal/download.php?dataId=11508|archive-date=2020-06-01}}</ref><ref>[http://www.naturalarches.org/archinfo/faq.htm Natural Arch and Bridge Society], FAQ.</ref><ref>[http://www.naturalarches.org/big-FairyBridge.htm Big 14 Tour - Fairy Bridge], The Natural Arch and Bridge Society</ref><ref>{{cite web |url=http://www.nature.nps.gov/geology/parks/arch/ |title=Geology Resources, Arches National Park |publisher=National Park Service |date= |accessdate=2015-12-23 |archive-date=2015-12-23 |archive-url=https://web.archive.org/web/20151223190124/http://www.nature.nps.gov/geology/parks/arch/ |dead-url=yes }}</ref><ref>Jett, Stephen C.[http://www.naturalarches.org/china/journal.html#fairybridge China Diary], The Natural Arch and Bridge Society</ref><ref>[http://www.naturalarches.org/big-FairyBridgeMeasurement.htm Measurement of Fairy Bridge]</ref><ref>[http://www.trekearth.com/gallery/Oceania/Australia/photo206866.htm Trek Earth]</ref>

== Tempat-tempat yang memiliki lengkungan alami ==
=== Afrika ===
[[Berkas:Aloba T15b 5831b Stefan Kroepelin.JPG|jmpl|upright=0.6|[[Aloba Arch]], Chad]]
* [[Aloba Arch]], [[Chad]]
* [[Boatswain Bird Island]], [[Ascension Island]]
* [[Bogenfels]], [[Namibia]]
* [[Goedehoop natural rock bridge]], [[South Africa]]
* [[Hole-in-the-Wall (Eastern Cape)|Hole-in-the-Wall]], [[Eastern Cape]], South Africa
* [[Tassili n'Ajjer]], a mountain range with many arches, [[Algeria]]
* [[Tukuyu]] natural bridge, [[Tanzania]]
* Wolfberg Arch, [[Cederberg]], [[Western Cape]], South Africa

=== Asia ===
[[Berkas:Natural stone arch in tirumala.JPG|jmpl|[[Natural Arch, Tirumala hills|Natural Stone Arch]], [[Tirumala]], India]]
[[Berkas:Arches in Timna Park in summer 2011 (7).JPG|jmpl|Arch in [[Timna Valley]] Park, [[Negev]] Desert, Israel]]
* Arch Cave, [[Galilee]], [[Israel]]
* Burdah Bridge, [[Wadi Rum]], [[Jordan]]
* [[Baatara gorge waterfall]] in [[Tannourine]], [[Lebanon]] has three natural bridges.
* [[Engetsu Island]], [[Shirahama, Wakayama]], [[Japan]]
* [[Hazarchishma Natural Bridge]], [[Bamyan Province]], [[Afghanistan]]
* [[Jabal Umm Fruth Bridge]], Jordan
* Jebel Kharaz, [[Wadi Rum]], Jordan
* "Jisr al-Hajar" or the "Stone Bridge" in [[Mzaar Kfardebian]], Lebanon
* [[Moon Hill]], [[Guangxi]] province, [[China]]
* [[Natural Arch, Tirumala hills]], [[Tirumala]], [[India]]
* The Pigeons' Rock known as [[Raouché]] in [[Beirut]], Lebanon
* [[Punarjani Guha]], natural tunnel in [[Thrissur district]] of Kerala, India
* Rock Bridge of Gulanchwadi, [[Narayangaon]], [[Maharashtra]], India<ref>Offbeat Tracks in Maharashtra - A Travel Guide - Book by [[Milind Gunaji]] ISBN 81-7154-669-2</ref>
* [[Shipton's Arch]], [[Xinjiang]], China
* [[Xianren Bridge]], China
* The Great White Hole of Krabi, [[Krabi Province|Krabi]], [[Thailand]]<ref>http://www.naturalarches.org/gallery-Thailand-WhiteHole.htm</ref>

=== Eropa ===
[[Berkas:Es pontas 2.jpg|jmpl|[[Es Pontàs]] is a natural arch in the coast of [[Mallorca]], Spain]]
[[Berkas:Durdle Door Dorset Sunset.jpg|jmpl|[[Durdle Door]], Dorset, UK]]
* [[Arco Naturale]], [[Capri]], [[Italy]]
* [[Azure Window]], [[Gozo]], [[Malta]] (collapsed in 2017)
* [[Bow Fiddle Rock]], [[Portknockie]], [[Scotland]]
* [[Castell de Castells]], [[Spain]]
* [[Chaos de Montpellier-le-Vieux]], [[France]]
* [[Durdle Door]], [[Dorset]], [[England]]
* [[Dyrhólaey]], [[Iceland]]
* [[Es Pontàs]], Spain
* [[Étretat]], France
* [[Green Bridge of Wales]], [[Pembrokeshire]], [[Wales]]
* [[Inland Sea, Gozo]], Malta
* [[Kuhstall (Saxon Switzerland)|Kuhstall]], [[Germany]]
* [[Malá Pravčická brána]], [[Czech Republic]]
* [[Marsden Rock]], [[South Shields]], [[England]] (collapsed in 1996)
* [[Marvelous Bridges]], [[Bulgaria]]
* [[Ófærufoss]], Iceland (collapsed in winter 1992/1993)
* [[Pistyll Rhaeadr]], Wales
* [[Ponoarele]], [[Romania]] (Podul lui Dumnezeu, or God's Bridge)
* [[Pont d'Arc]], France
* [[Pravčická brána]], Czech Republic
* [[Wied il-Mielaħ Window]], Gozo, Malta

=== Amerika Utara ===
==== Kanada ====
[[Berkas:QC Gaspesie RocherPerce tango7174.jpg|jmpl|[[Percé Rock]], [[Quebec]], Canada]]
* [[Percé Rock]], [[Quebec]]

==== Karibia ====
* [[Aruba Natural Bridge|Natural Bridge]], [[Aruba]] (collapsed 2005)

==== Meksiko ====
[[Berkas:CaboSanLucasLandsEnd.JPG|jmpl|The [[Arch of Cabo San Lucas]], Mexico]]
* [[Arch of Cabo San Lucas|El Arco de Cabo San Lucas]], [[Baja California Sur]]

==== Amerika Serikat ====
{{See also|Arches National Park}}
[[Berkas:LandscapeArchPano.jpg|jmpl|[[Landscape Arch]], [[Utah]], United States - one of the [[List of longest natural arches|longest natural arches]] in the world<ref>{{cite web|url=http://www.naturalarches.org/big9.htm |title=The Worlds Longest Natural Spans |website=www.naturalarches.org |publisher=Natural Arch and Bridge Society |accessdate=January 10, 2017}}</ref>]]
[[Berkas:Window rock AZ.jpg|jmpl|[[Window Rock, Arizona]]]]
* [[Anacapa Island]], [[Channel Islands National Park]], [[California]]
* [[Arch Creek, Florida|Arch Creek]], [[Florida]]
* [[Ayres Natural Bridge Park]], [[Wyoming]]
* [[Bell Smith Springs]], [[Illinois]]
* [[Blackwater Natural Bridge]], Wyoming
* [[Bryce Canyon National Park]], [[Utah]]
* [[Corona Arch]], Utah
* [[Creelsboro Natural Bridge]], [[Kentucky]]
* [[Delicate Arch]], Utah
* [[Eye of the Needle (Montana)|Eye of the Needle]], [[Montana]]
* [[Goat Rock Beach]], California
* [[Grosvenor Arch]], Utah
* [[Honopū Valley|Honopū Arch]], [[Hawaii]]
* [[Natural Arch|Koger Natural Arch]], Kentucky<ref>{{cite web|url=http://www.kspg.org/pages/iarch.html |title=Natural Arch |publisher=Kentucky Society of Professional Geologists |date= |accessdate=2015-12-23}}</ref>
* [[Kolob Arch]], [[Zion National Park]], Utah
* [[Landscape Arch]], Utah
* [[Natural Bridge (Virginia)|Natural Bridge]], [[Virginia]]
* [[Natural Bridge Caverns]], [[Texas]]
* [[Natural Bridge Park]], [[Alabama]]
* [[Natural Bridge State Resort Park|Natural Bridge State Park]], Kentucky
* [[Natural Bridge State Park (Massachusetts)|Natural Bridge State Park]], [[Massachusetts]]
* [[Natural Bridge State Park (Wisconsin)|Natural Bridge State Park]], [[Wisconsin]]
* [[Natural Bridges National Monument]], Utah
* [[Natural Bridges State Beach]], California
* [[Rainbow Bridge National Monument]], Utah
* [[Rattlesnake Canyon (Colorado)|Rattlesnake Canyon]], [[Colorado]]
* [[Rockbridge State Nature Preserve]], [[Ohio]]
* [[Sewanee Natural Bridge]], [[Tennessee]]
* [[Sipapu Bridge]], Utah
* [[Three Arch Rocks National Wildlife Refuge]], [[Oregon]]
* [[Tonto Natural Bridge]], [[Arizona]]
* [[Window Rock, Arizona]]
* [[Wrather Arch]], Arizona
* [[Yahoo Arch]], Kentucky

=== Oceania ===
[[Berkas:Hole In The Rock In Bay Of Islands.jpg|jmpl|Motu Kōkako, also known as Piercy Island or "The Hole In The Rock”, New Zealand]]
* [[London Arch]], Australia (collapsed 1990)
* [[Mangapohue Natural Bridge]], New Zealand
* [[Oparara Basin Arches]], New Zealand
* [[Piercy Island]], New Zealand
* [[Springbrook National Park#Natural Bridge section|Springbrook National Park]], [[Queensland]], Australia

=== Amerika Selatan ===
* [[Arch Islands]], [[Falkland Islands]]
* [[Icononzo]], [[Colombia]]
* [[La Portada]], [[Chile]]
* [[Puente del Inca]], [[Argentina]]
* [[Sete Cidades National Park]], [[Brazil]]

=== Lainnya ===
* The Arch of Kerguelen, Christmas Harbour, [[Kerguelen Islands]] (collapsed ca. 1910)<ref>[http://www.discoverfrance.net/Colonies/Kerguelen.shtml "Kerguelen Islands, Part 1," DiscoverFrance.net]</ref>

== Lihat pula ==
* [[List of longest natural arches]]


== Referensi ==
== Referensi ==
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* [http://www.naturalarches.org/ The Natural Arch and Bridge Society]
* [http://www.naturalarches.org/ The Natural Arch and Bridge Society]
* {{Cite AmCyc|wstitle=Bridge, Natural |short=x}}
* {{Cite AmCyc|wstitle=Bridge, Natural |short=x}}
{{Bentang lahan dan bentuk lahan}}


[[Kategori:Bentuk lahan marin]]
{{Coastal geography}}
[[Kategori:Bentang alam aeolian]]

[[Kategori:Natural arches| ]]
[[Kategori:Coastal and oceanic landforms]]
[[Kategori:Coastal geography]]
[[Kategori:Erosion landforms]]

Revisi terkini sejak 23 Februari 2023 17.03

Delicate Arch in Arches National Park, Utah, United States

Pelengkung atau busur (bahasa Inggris: arch) adalah suatu bentuk lahan atau bentang alam berupa lengkungan dengan sebuah lubang di bawahnya. Bentukan pelengkung umumnya terdapat pada tebing daratan, tebing pantai, sirip, atau tumpukan yang disebabkan oleh erosi air laut, sungai, atau proses pelapukan oleh cuaca.[1][2][3][4][5][6][7]

Referensi

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  1. ^ Sunarto (2008). "Hakikat Bencana Kepesisiran dalam Perspektif Geomorfologi dan Upaya Pengurangan Risikonya". Jurnal Kebencanaan Indonesia. 1 (4): 211–228. Diarsipkan dari versi asli tanggal 2020-06-01. 
  2. ^ Natural Arch and Bridge Society, FAQ.
  3. ^ Big 14 Tour - Fairy Bridge, The Natural Arch and Bridge Society
  4. ^ "Geology Resources, Arches National Park". National Park Service. Diarsipkan dari versi asli tanggal 2015-12-23. Diakses tanggal 2015-12-23. 
  5. ^ Jett, Stephen C.China Diary, The Natural Arch and Bridge Society
  6. ^ Measurement of Fairy Bridge
  7. ^ Trek Earth

Pranala luar

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