List of places with columnar jointed volcanics


Columnar jointing of volcanic rocks exists in many places on Earth. Perhaps the most famous basalt lava flow in the world is the Giant's Causeway in Northern Ireland, in which the vertical joints form polygonal columns and give the impression of having been artificially constructed.

Notable columnar jointed volcanics

Africa

Asia

Armenia

China (mainland)

Hong Kong

India

In India, columnars are found in several places across the volcanic traps such as 6.5 crore or 65 million years ago old deccan traps in South India and 14.5 crore or 145 mya old Rajmahal Traps in Eastern India.
;Karnataka
;Madhya Pradesh
;Maharashtra
;Telangana

Indonesia

Iran

Israel

Japan

Malaysia

  • In Teck Guan Cocoa Village and in Giram River, Kampung Balung Cocos Tawau, Sabah, Malaysia.

Mongolia

Philippines

Russia

South Korea

Taiwan

Thailand

Turkey

Vietnam

Europe

Croatia

Czech Republic

  • Panská skála, Kamenický Šenov, Czech Republic
  • Zlatý vrch, Česká Kamenice, Czech Republic

Faroe Islands

France

Georgia

Germany

Great Britain

Greece

Hungary

  • Badacsony
  • Bér
  • Szanda
  • Szilváskő
  • Hegyestű
  • Szent-György-hegy
  • Gulács
  • Haláp
  • Hajagos
  • Uzsa

Iceland

Northern Ireland

Italy

Portugal

Romania

Slovakia

Spain

Sweden

Ukraine

North and Central America

Canada

Costa Rica

  • Bajo Rodriguez, San Lorenzo de San Ramon

El Salvador

  • Cascada Los Tercios, Suchitoto
  • Concepción waterfall, Aculco

Greenland

  • Qeqertarsuaq, Disko Island

Guadeloupe

Guatemala

Mexico

Panama

  • Los Ladrillos, Boquete

United States

Oceania

Australia

Federated States of Micronesia

New Zealand

South America

Beyond Earth

Several exposures of columnar jointing have been discovered on the planet Mars by the High Resolution Imaging Science Experiment camera, which is carried by the Mars Reconnaissance Orbiter. Notable among them are formations in the Marte Vallis.

Uses

A likely Hindu-origin ancient site at Gunung Padang in West Java, Indonesia was built by horizontally laying basalt columns to form terraces on the slope of a hill and creating open-roofed chambers by erecting vertical columns. A now-ruined thirteenth-century religious complex called Nan Madol was built using columnar basalt quarried from various locations on the island of Pohnpei in Micronesia.
Hexagonal basalt was used to build retaining walls by early settlers in some places around Dunedin in New Zealand.