Sentences with phrase «formed in a shallow sea»

All of the limestone in the quarry formed in a shallow sea basin, as evidenced by the large number of marine fossils such as snails, mussels and sea urchins.

On our home turf, craters that form in shallow seas or wetlands hardly make an imprint in the soggy ground and are quickly subsumed.

Not exact matches

Natural methane hydrates were first discovered by Russian scientists in the late 1960s in Siberian permafrost — where the ground is so cold that hydrates can form at shallower depths and at lower pressures than under the sea — and then, in the 1970s, at the bottom of the Black Ssea — and then, in the 1970s, at the bottom of the Black SeaSea.

They were contained in rocks which Izett says may have been formed by a tsunami, following the impact in the shallow sea that covered Iowa.

The dolomite in which the caves formed started out as coral reefs growing in a worm shallow sea about 2.3 billion years ago.

Widespread in the Caribbean, this sea grass forms a lot of the «pasture» between the beach and the reef, in the shallow well lit waters.

The artist was inspired by the fact that the sedimentary rock was formed when the region was a shallow sea in Prehistoric times.

And while human impacts on deep sea corals are different from shallow corals, they can be equally devastating — especially in the form of destructive fishing practices such as bottom trawling.

Sea ice is critical for polar marine ecosystems in at least two important ways: (1) it provides a habitat for photosynthetic algae and nursery ground for invertebrates and fish during times when the water column does not support phytoplankton growth; and (2) as the ice melts, releasing organisms into the surface water [3], a shallow mixed layer forms which fosters large ice - edge blooms important to the overall productivity of polar seas.

But seen the environmental global CRISIS of GLOBAL WARMING and its devastating climatological impact, I would recommend as an environmental policy - expert that Both NATURAL plankton will be bred in shallow waters as carbondioxide inhibitors in a large volume on the one hand and let nature goes its course in the seas and oceans so that sea - organisms / life - forms / mamals will not become extinct due to (for them) food poisoning.

http://earthobservatory.nasa.gov/IOTD/view.php?id=83672 http://www.nytimes.com/2014/05/13/science/earth/collapse-of-parts-of-west-antarctica-ice-sheet-has-begun-scientists-say.html It will add about 10 feet according to an interview with one of the scientists involved; but over a long time and fairly vague time frame, unless reinforcing processes (carbon release from melting permafrost, shallow ocean bottom warmingn in the form of methane from clathrates), a major reduction in earth's albedo from permafrost, net ice sheet, and total sea ice, continue to increasingly accelerate the process.