oceanography pg11.html

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<B><strong>Slope Types: </U>
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></B>Enter Coast of United States to 1000 fathoms<FONT size="+1"> </P
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><FONT size="+1">(1) Canyons off the Northeast United States New York to Washington D.C. depth<FONT size="+1"> </P
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><FONT size="+1">of canyons is 2000 - 4000 fathoms. 15 canyons covered with mud mostly<FONT size="+1"> </P
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><FONT size="+1">except in New England with rocky outcrops Miocene rocks.<FONT size="+1"> </P
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><FONT size="+1">(2) Terrand Slopes of Cape Hattera and Gulf Stream - divided by the Blake<FONT size="+1"> </P
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><FONT size="+1">Plateau from Florida to Cape Haltras North Carolina. Bottom is either rock or<FONT size="+1"> </P
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><FONT size="+1">Calcareous deposits- Microcene.<FONT size="+1"> </P
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><FONT size="+1">Why:<FONT size="+1"> </P
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><FONT size="+1">1. High velocity of Gulf Stream (6 knots) fastest current in worlds<FONT size="+1"> </P
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><FONT size="+1">2. Faulting<FONT size="+1"> </P
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><FONT size="+1">(3) West Florida Escapement - No Earthquakes recorded (500 miles long)<FONT size="+1"> </P
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><FONT size="+1">(4) Basin and Hill slopes of Texas and Louisiana (West of Mississippi River) -<FONT size="+1"> </P
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><FONT size="+1">slope may be caused by valley and something blocked then (30 mile iceberg +<FONT size="+1"> </P
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><FONT size="+1">1500 fathoms) slope could be caused also by landslides (but only 1 degree<FONT size="+1"> </P
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><FONT size="+1">slope). Salt domes on outer shelf could have pushed up portions of slope not<FONT size="+1"> </P
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><FONT size="+1">stark escapement enough to suggest faults<FONT size="+1"> </P
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><FONT size="+1">(5) Southern California Slopes - 150 miles long - (4000 fathoms deep 10-20<FONT size="+1"> </P
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><FONT size="+1">miles of lakes) Escapements appear to be caused by faulting analogous to San<FONT size="+1"> </P
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><FONT size="+1">Andreas fault<FONT size="+1"> </P
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><FONT size="+1">(6) Westward moving Continental Slope: 20 feet off with 1905 Quake<FONT size="+1"> </P
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><FONT size="+1">(7) Aleutian Slopes: South side 4000 fathoms - many valleys (Attitude &amp; Kisusa<FONT size="+1"> </P
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><FONT size="+1">narrators) fault scape<FONT size="+1"> </P
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><FONT size="+1">Aleutian Trench 15 degrees slope arch volcanic and seismic again<FONT size="+1"> </P
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><FONT size="+1">Slope degree<FONT size="+1"> </P
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><FONT size="+1">60+ = mud<FONT size="+1"> </P
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><FONT size="+1">25+ == sand<FONT size="+1"> </P
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><FONT size="+1">5 shells &amp; ooze<FONT size="+1"> </P
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><U><FONT size="+1"><strong><B>Origin &amp; Presentation of Canyons (150) </strong></U></P
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></B>Complication a: origin<FONT size="+1"> </P
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><FONT size="+1">Corisca - drowned valley ok<FONT size="+1"> </P
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><FONT size="+1">(1) All other sub canyons have no adjacent land valleys<FONT size="+1"> </P
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><FONT size="+1">(2) Majority of canyons off of straight coasts<FONT size="+1"> </P
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><FONT size="+1">(3) Land not sinking<FONT size="+1"> </P
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><FONT size="+1">(4) Sub canyons have stupor gradient than land areas<FONT size="+1"> </P
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><FONT size="+1">(5) Sub canyons go all way doing slope &amp; as a valley<FONT size="+1"> </P
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><FONT size="+1">(6) Canyons are world apart<FONT size="+1"> </P
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><U><FONT size="+1"><strong><B>Other Discrediting Hypothesis </strong></U></P
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></B>(1) Run excoriations<FONT size="+1"> </P
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><FONT size="+1">(2) Faulting of floor/ blooms dropped (valleys winds) (don't in block topography)<FONT size="+1"> <br>
<FONT size="+1" color="#000000"></B>(3) Currents: these flow to sea h2O up-willing has little force, tsunami effective<FONT size="+1"> </P
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><FONT size="+1">only in shallow water<FONT size="+1"> </P
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><FONT size="+1">(4) Collapse of waves would give uneven and topography<FONT size="+1"> </P
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><FONT size="+1">(5) Currents - these flow contrary to sea h20<FONT size="+1"> </P
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><FONT size="+1">Sand and gravel carried large way when much mud &amp; h20 in suspension.<FONT size="+1"> </P
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><FONT size="+1">Maurice Erring shard much sand in deposits around fans of sub canyons<FONT size="+1"> </P
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><FONT size="+1">Helzen &amp; Erring re: Cable breaks as 60 mph currents caused by earthquakes<FONT size="+1"> </P
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><FONT size="+1">Brake steel cable than can cut granite (maximum speed measure in artificial lake<FONT size="+1"> </P
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><FONT size="+1">at 1 mph<FONT size="+1"> </P
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><FONT size="+1">Kari Terzaghi: progressui lign fracture of slope sediment - slow speed - break<FONT size="+1"> </P
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><FONT size="+1">caused by pressure on cable<FONT size="+1"> </P
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><FONT size="+1">Currents appear to transport but not erode (velocity)<FONT size="+1"> </P
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><FONT size="+1">(6) Lowering of sea leveling remote time - H20 never so low as to allow for age<FONT size="+1"> </P
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><FONT size="+1">of fossils on sea mounts - (not with glacial epoch)<FONT size="+1"> </P
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><FONT size="+1">(7) Sediment can move from quake (16 feet in cold if coral La Jolta)<FONT size="+1"> </P
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><FONT size="+1">Possible Solution: Ancient rare cutting and slow substance and<FONT size="+1"> </P
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><FONT size="+1">Trenches: long narrow and setup sides greatest depths of oceans here Atlantic (4<FONT size="+1"> </P
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><FONT size="+1">trenches)<FONT size="+1"> </P
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><FONT size="+1">West Indies (2)<FONT size="+1"> </P
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><FONT size="+1">1. Puerto Rico Trench<FONT size="+1"> </P
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><FONT size="+1">2. Cuba<FONT size="+1"> </P
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><FONT size="+1">Romancher Deep (each of mid - Atlantic /Equator)<FONT size="+1"> </P
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><FONT size="+1">Antarctic (In west Sandust)<FONT size="+1"> </P
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><FONT size="+1">Deep (Weddell Sea)