- published: 03 Feb 2015
- views: 3005
A seamount is a mountain rising from the ocean seafloor that does not reach to the water's surface (sea level), and thus is not an island. Seamounts are typically formed from extinct volcanoes that rise abruptly and are usually found rising from the seafloor to 1,000–4,000 metres (3,300–13,100 ft) in height. They are defined by oceanographers as independent features that rise to at least 1,000 metres (3,281 ft) above the seafloor, characteristically of conical form. The peaks are often found hundreds to thousands of meters below the surface, and are therefore considered to be within the deep sea. During their evolution over geologic time, the largest seamounts may reach the sea surface where wave action erodes the summit to form a flat surface. After they have subsided and sunk below the sea surface such flat-top seamounts are called "guyots" or "tablemounts"
A total of 9,951 seamounts and 283 guyots, covering a total area of 8,796,150 km2 have been mapped but only a few have been studied in detail by scientists. Seamounts and guyots are most abundant in the North Pacific Ocean, and follow a distinctive evolutionary pattern of eruption, build-up, subsidence and erosion. In recent years, several active seamounts have been observed, for example Loihi in the Hawaiian Islands.
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VOLCANO ERUPTS off OREGON - 8 ft Sea Floor Drop at AXIAL SEAMOUNT.
Davidson Seamount: The Biology of an Underwater Mountain
MANCING MANIA - KEJUTAN KECIL DI SPOT SEA MOUNT REEF (28/5/16) 3-1
Axial Seamount Underwater Volcano Erupting Off Oregon
Thousands of sharks visit a sea mount - Blue Planet: A Natural History of the Oceans - BBC
why is your raincoat
always crying?
why does the hat on your head
hang over your eyes?
your white shirt is buttoned
way up to the top
suspicious that zippers
don't know when to stop
and there's certain a jacket is lying
why is your raincoat always crying?
why is your nightgown
so sad and sleepy?
what is the secret
your make-up refuses to tell?
bright colours grow weary
from years of neglect
brown scarf
grows tight
around your pretty neck
and just what is that sweater implying?
why is your raincoat always crying?
why does that old road
back like its dying?
why does it cling to your side
hanging on for dear life?
as you take off that dress
and you put on the next one
each hopeful outfit
will beg the same question
if going outside
is really worth trying