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A blowhole is also the name of a rare geologic feature in which air is blown through a small hole at the surface due to pressure differences between a closed underground system and the surface. The blowholes of Wupatki National Monument are an example of such a phenomenon. It is estimated that the closed underground passages have a volume of at ...
A blowhole is a cavity formed when a joint between a sea cave (formed by erosion) and the land surface above the cave becomes enlarged. The sea cave and the land surface become conjoined when the roof of the cave collapses.
The 'Mapu a Vaea', Blowholes. The Mapu a Vaea or "Whistle of the Noble" are natural blowholes on the island of Tongatapu in the village of Houma in the Kingdom of Tonga. [1] ...
The Alofaaga Blowholes, also known as the Taga Blowholes, are a natural feature located in the district of Palauli, south west of Salelologa wharf on the island of Savai'i in Samoa.
Blowhole may refer to: Blowhole (anatomy), the hole at the top of a whale's or other cetacean's head; Blowhole (geology), a hole at the inland end of a sea cave Kiama Blowhole in Kiama, Australia; The Blow Hole, a marine passage between Minstrel and East Cracroft Islands in the Central Coast of British Columbia, Canada
Spouting Horn is a blowhole located on the southern coast of Kauai in the Koloa district. This area of Kauai is known for its crashing waves (nearby Poipu translates to "crashing" [ 1 ] ). These waves erode lava rocks on the coastline which can create narrow openings, as is the case with Spouting Horn.
The blowhole is most active when the tide is high and the winds are strong, [3] and it can shoot sea spray up to thirty feet high in the air. [4] Hālona Point is a tourist spot, with visitors coming for the scenery, the beach at the cove, and in the winter as a spot to go to see humpback whales or Honu turtles (Hawaiian Green Sea Turtles).
A water resources borehole into the chalk aquifer under the North Downs, England at Albury. Engineers and environmental consultants use the term borehole to collectively describe all of the various types of holes drilled as part of a geotechnical investigation or environmental site assessment (a so-called Phase II ESA).