. Bulletin of the Geological Society of America. Geology. 116 J. RECONSTRUCTION OF ANTILLEAN CONTINENT. nels. On the Honduras banks, where the water is about 175 feet deep, there are several drowned canyons as shown in figure 6. On the northern side of this submerged plain the channel forms a canyon trace- able to 690 feet and on the southern side to 940 feet. The passage be- tween Rosalind and Pedro banks, with a depth of 4,400 feet and a width of 80 miles, connecting the Honduras and Caribbean seas, is only the union of the valleys on the opposite sides of the ridge, apparently bro
. Bulletin of the Geological Society of America. Geology. 116 J. RECONSTRUCTION OF ANTILLEAN CONTINENT. nels. On the Honduras banks, where the water is about 175 feet deep, there are several drowned canyons as shown in figure 6. On the northern side of this submerged plain the channel forms a canyon trace- able to 690 feet and on the southern side to 940 feet. The passage be- tween Rosalind and Pedro banks, with a depth of 4,400 feet and a width of 80 miles, connecting the Honduras and Caribbean seas, is only the union of the valleys on the opposite sides of the ridge, apparently broad- ened and deepened by marine currents established when the submer- gence was half or less that of the present. The channel between Pedro bank and Jamaica, with a depth of about 3,000 feet and width of 40 miles is of similar character. That between the sea of Honduras and the gulf of Mexico reaches a depth of 7,000 feet and a width between the banks of 100 miles, or 140 miles from land to land. This is of like. 2301 . 2270 30*fi 21fr7 1384 2095 2618 1150 ntf fc>\J33 \1 lis ?» 23 n \ -',â asâ â *& â -â i6\iS». 36 27(f' JS ' 42\\ 17 J33 J. Jl 4 â¢671;17 " i^--'^°. ii ';», "^ MO Figure 6.âMap 0/ Honduras and Rosalind Banks, showing Fjords. (From Hydrographic Office Chart No. 21,) character to the other channels and has been broadened out by the ma rine currents when the submergence was less than the present amount. From the structure the writer concludes that a greater amount of depres- sion occurred here than in the region of the Rosalind banks, or else that the submergence was earlier. The physical character of both these pas- sages is modern, in the region of least orogenic disturbances, and their depths, inferior to those of the fjords (the Yucatan being in juxtaposi- tion to them), show that the outlets of the present basins were not across these ridges. One other fjord must close the list. This has a depth of 7,000 feet within the limit
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