Search results
Results From The WOW.Com Content Network
A blowhole system always contains three main features: a catchment entrance, a compression cavern and an expelling port. The arrangement, angle and size of these three features determine the force of the air to water ratio that is ejected from the port. [6] The blowhole feature tends to occur in the most distal section of a littoral cave. As ...
Calder's Geo, Shetland Geo of Sclaites at Duncansby Head, Caithness. A geo or gio (/ ɡ j oʊ / GYOH, from Old Norse gjá [1]) is an inlet, a gully or a narrow and deep cleft in the face of a cliff. Geos are common on the coastline of the Shetland and Orkney islands.
The Pancake Rocks are a heavily eroded limestone formation where the sea bursts through several vertical blowholes during incoming swells, particularly at high tide. The limestone was formed in the Oligocene period (around 22–30 million years old), a period in the geological history of New Zealand where most of the continent of Zealandia was submerged beneath shallow seas. [2]
The sea cave and the land surface become conjoined when the roof of the cave collapses. Blowholes are formed by the process of erosion. When waves enter the mouth of the cave they will be funneled up towards the blowhole, which can become quite spectacular if the geometry and state of the weather are appropriate.
Blowhole – Hole at the top of a sea-cave which allows waves to force water or spray out of the hole; Blowout – Depressions in a sand dune ecosystem caused by the removal of sediments by wind; Bluff – Tall, near vertical rock face; Bornhardt – A large dome-shaped, steep-sided, bald rock; Braided channel – Network of river channels
Aerial photograph interpretation is a method of extrapolating geological details of the ground surface from aerial images. [1] It allows geologists to analyze the distinguishing geological features and structures , plant cover , past history of the site, soil properties, and topography of the study area.
Land's End, England. A headland, also known as a head, is a coastal landform, a point of land usually high and often with a sheer drop, that extends into a body of water.It is a type of promontory.
Durlston Head (limestone) to Handfast Point (chalk), with Peveril Point (limestone) dividing Durlston Bay from Swanage Bay. A discordant coastline occurs where bands of different rock types run perpendicular to the coast.