THE DEPTH AND MARINE DEPOSITS OF THE PACIFIC OCEAN. 151 



As already stated, the area between 2000 and 3000 fathoms (3658-5487 

 metres) in depth covers by far the greater part of the floor of the Pacific, 

 and it is worthy of note that it forms an almost continuous area, for only in 

 the southwest Pacific are there two separated areas : a comparatively small 

 one in the Coral Sea, and a larger one in the sea between Australia and New 

 Zealand, between 24° and 52° S. and 149° and 165° E., to which the name 

 Thomson Basin has been given. 



In recent oceanographical literature the term " Deep " has been applied to 

 those parts of the ocean where the depth exceeds 3000 fathoms (5487 metres). 

 There are altogether 31 Deeps shown on the accompanying map of the 

 Pacific, and these are for the most part confined to the western half of the 

 ocean. They have been named after ships which have had some connection 

 with deep-sea exploration, or naval officers, geographers, or naturalists inter- 

 ested in oceanography. In the preceding table are given the names, posi- 



