Portugal occupies one-sixth of theIberian PeninsulaatEurope’ssouthwestern perimeter. To its north and east isSpain, which makes up the rest of the peninsula; to the south and the west is theAtlantic Ocean; and to the west and southwest lie theAzores(Açores) and theMadeira Islands, which...
The secret truth about ocean rowing, which ocean rowers don’t like to broadcast, is that if you row the Atlantic in the peak season, leaving in December, even if you don’t row, or barely row, you’ll get across the Atlantic in about 60 days or so with little to know effort. I...
The crustal accretion along mid-ocean ridges is known to be spreading-rate dependent. Along fast-spreading ridges, two-dimensional sheet-like mantle upwelling creates relatively uniform crust. In contrast, the crust formed along slow-spreading ridges sho
Basalt recovered beneath Jurassic sediments in the western Atlantic at Deep Sea Drilling Project sites 100 and 105 of leg 11 has petrographic features characteristic of water-quenched basalt extruded along modern ocean ridges. Site 100 basalt appears to represent two or three massive cooling units, ...
is distinguished by fairly broad distribution of a special type of volcanic activity, by fault tectonics, by weak seismic activity, and by slow negative regional movements of the earth’s crust. The geophysical fields of the ocean floor are mostly isometric, and positive gravitational anomalies pred...
Emplacement of mantle rocks in the sea or at mid-ocean ridges. J. of Geophys. Res. 98, 4163–4172 (1993). Article ADS Google Scholar Gente, P. et al. Characteristics and evolution of the segmentation of the Mid-Atlantic Ridge between 20°N and 24°N during the last 10 million ...
The Bottom of the Ocean Is “Main Street” to Him Captain W.G.S. deCarteret, veteran skipper in the transatlantic cable service, has made more than 400 repairs on the lines that join Europe and America. He tells the romance of laying cables and the strenuous jobs of mending them. ...
International Ocean Telegraph Co ? 1871 Banjoewangie, Java - Port Darwin, Australia Telcon British Australian Telegraph Co Hibernia - Edinburgh - Investigator System 1082 nm. CABLE: 1 copper conductor, 7 strands 0.029" wire, 6 wrapped around 7th, covered with Chattertons Compound and gutta percha...
losses have a signal-to-noise penalty associated with them, which is roughly a function of the total net gains and losses between any two repeaters. To hold these penalties to an acceptable level (a few decibels, ocean block equalizers are inserted at regular intervals along the system (every...
On the Vring Plateau of the Norwegian margin, Seismic lines coincide with DSDP Leg 38 drill sites. Whole rock major element abundances in the freshest basalts are compatible with moderate extents of partial melting of mantle much like that believed to underlie modern mid-ocean ridge systems and ...