. Collected reprints, Essa Institute for Oceanography. Oceanography DEEP-SEA DEPOSITS IN BUT NOT ON THE CONTINENTS 355. Fig. 2.—Block diagram schematically depicting conditions off eastern United States. It shows contrast between rock facies which are i?i and those which are on continents, Eugeosynclinal deposits are accretionary elements folded into deep fabric of continental block forming ensimatic facies. In contrast, other major sedi- mentary facies (platform beds, molasse, and miogeosynclinal deposits) are ensialic deposits resting on conti- nental block. believe this fauna
. Collected reprints, Essa Institute for Oceanography. Oceanography DEEP-SEA DEPOSITS IN BUT NOT ON THE CONTINENTS 355. Fig. 2.—Block diagram schematically depicting conditions off eastern United States. It shows contrast between rock facies which are i?i and those which are on continents, Eugeosynclinal deposits are accretionary elements folded into deep fabric of continental block forming ensimatic facies. In contrast, other major sedi- mentary facies (platform beds, molasse, and miogeosynclinal deposits) are ensialic deposits resting on conti- nental block. believe this fauna to be indicative of a depth of at least 2,000 fathoms. The same graptolite-ra- diolarian facies extends to Newfoundland (Samp- son, 1923) and is found also in Great Britain (Dewey and Flett, IQll; Peach and Home, 1899). Much has been written regarding dei.^th of radi- olarite deposition and the association of these rocks in the so-called Steinmann Trinity (spilites, cherts, and ultrabasics). Suess (1900) noted the association of such "green rocks" or greenstones with respect to the thrust sheets of the Alps and with the Franciscan graywackes in the California coast ranges. More recently, Triimpy (1960) ac- cepted Steinmann's deep-sea origin of the sive radiolarites in the Alps. Peach and Home (1899) pointed to the association of spilites and pillow lavas with radiolarites and graptolite shales in the Scottish Highlands; they assigned a deep- sea origin to the suite. Similar rocks in New Zea- land and Australia also have been regarded as of deep-sea origin (Kobayashi, 1942). A distinction must be made between radiolari- an cherts and shales containing radiolarians. The former occur only in the facies and contain a mixture of both large (presumably deep-water forms) and small species of radiolari- ans. The latter are found in certain supra-conti- nental shales, and seem to be uniformly small (less than 1/10 mm.; Orville Bandy, personal communic
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