![]() ![]() Well, the technology is still at an early research stage, and, worldwide, tidal power doesn't generally much electricity yet. It needs no fuel, and produces no by-products or pollution. It's also a renewable, sustainable source of energy. Every day that are two high tides and two low tides that can be used to generate electricity. Unlike solar and wind energy, tidal movements are reliably constant. This powers generators that convert the kinetic energy into electrical energy that can be transported back to land through undersea cables. The kinetic energy of the water flowing back and forward with the tide is used to turn the blades of the turbines. It works like, this giant turbines are fixed to the sea floor. This is easier to capture when you’ve got water flowing through a narrow channel, such as an estuary, or between two parts of land. For tidal power to work, you need a really strong flow of water. The movement of all this water involves a lot of energy - energy that could be used to generate electricity. That's why the tide will come in and go out again from the coast twice a day. As the moon moves around the earth, these tides move, too. On the other side of the Earth, the sea is pulled a bit less, causing another high tide. Where there is sea facing the moon, this gets pulled even more causing a high tide. Just like gravity pulls objects down to the Earth, the moon's gravity pulls things towards it, too, including the earth. The gastropods and ostracodes, studied by SEM, indicate a Jurassic age for the Scots bay Formation, confirming speculations based on other data.The tide and high seas are moved by the gravitational pull of the moon and the sun, too. ![]() The Scots Bay Formation is probably a near-shore carbonate facies of the more widespread silicilastic lacustrine McCoy Brook Formation. This association of charaphytes, ostracodes, microscopic gastropods and stromatolites is found in carbonate lakes today. Possible algal filaments occur in the silicified stromatolites. They include ostracodes, gastropods, rare bivalves, charaphytes (algae), stromatolites, and chert nodules cored with well-preserved woody more » tissues of tree trunks. Silicified fossils have been extracted from chert-bearing, mixed carbonate and siliciclastic lithologies. These new finds will contribute significantly to evolutionary, paleoecological and biostratigraphic studies of fresh-water Mesozoic deposits. This is important because the basins of the eastern North American Triassic-Jurassic rift system have not yielded many invertebrate and algal fossils. « lessĪ unique assemblage of silicified invertebrate and algal fresh-water lake fossils has been discovered in the Scots Bay Formation at the top of the Triassic-Jurassic Fundy Group of the Fundy Basin in Nova Scotia. The Kimberly coals are not only high in total and pyritic sulfur, but also have high concentrations of chalcophile elements. The coals are all high sulfur, up to 13.7% total sulfur for the lower lithotype of the Fundy coal bed. Telinite preservation increases upwards in the Upper Kimberly but overall is well below the preservation ratio of the Fundy coal bed. The megaspore record is similarly dominated by Lagenicularugosa paralycopodites and tree fern spores. The Upper Kimberly, which underlies the tetrapod-bearing lycopsid trees found by Lyell and Dawson in 1852, exhibits an upward decrease in arboreous lycopod spores and an increase in the tree fern spore Punctatisporites minutus. The Lower Kimberly (Coal 15) shows good preservation of vitrinite with relatively abundant telinite among the total vitrinite. The latter coal bed is directly overlain by a basin-wide limestone bed. Coal 19 (Forty Brine) more » has 88% total vitrinite but, unlike the Fundy coal bed, the telinite has a poor preservation ratio and half of the total vitrinite population comprises gelocollinite and vitrodetrinite. The upper portions of the coal bed have the highest ratio of well-preserved to poorly-preserved telinite of any of the coals investigated. The lowermost coal, the Upper Coal 29 (Fundy), is a high-vitrinite coal with a spore assemblage dominated by arboreous lycopod spores with tree ferns subdominant. There has been little detailed investigation of the coal beds of this classic section. Several of the coal beds along the bay were mined beginning in the early 17th century. Five Westphalian A coals were collected from the Joggins Formation section exposed along Chignecto Bay at Joggins, Nova Scotia. ![]()
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