. The Earth beneath the sea : History . Fig. 18. Ripple marks on the flank of Atlantis Seamonnt in 410 fm. Photograph made on Atlantis Cruise 152, August, 1948. Area of photograph approximately 6 m^. (Murray and Renard, 1891). In fact, Agassiz (1888) early recognized that current scour could be effective to depths down to at least 650 fm. He concluded that "... the bottom of the Gulf Stream along the Blake Plateau is swept clean of slime and ooze, and is nearly barren of animal life". Weber, in 1900, later noted coarse sand and rock bottom to depths of 1500 m in the passages between
. The Earth beneath the sea : History . Fig. 18. Ripple marks on the flank of Atlantis Seamonnt in 410 fm. Photograph made on Atlantis Cruise 152, August, 1948. Area of photograph approximately 6 m^. (Murray and Renard, 1891). In fact, Agassiz (1888) early recognized that current scour could be effective to depths down to at least 650 fm. He concluded that "... the bottom of the Gulf Stream along the Blake Plateau is swept clean of slime and ooze, and is nearly barren of animal life". Weber, in 1900, later noted coarse sand and rock bottom to depths of 1500 m in the passages between the Indonesian Islands. But concerning these findings Grabau (1913) concluded that: "It is probable that we have here a prevention of sedimentation by the removal of the particles before they reach the bottom, rather than any effect of eroding work of the currents at such ; Ripple marks (Fig. 18) and scour marks (Fig. 19) have been found on every
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Photo credit: © The Bookworm Collection / Alamy / Afripics
License: Licensed
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Keywords: ., bookcentury1900, bookcollectionbiodivers, booksubjectoceanbottom
