. The Earth beneath the sea : History . lec Mcr Fig. 23. Major and minor lineations in the northeastern Pacific. (After Menard, ) years ago in the northeastern Pacific basin. Now scores are known in the Pacific and Atlantic. They form a pattern of east-west parallel lines, relatively evenly spaced down the whole eastern Pacific (Fig. 23). Three follow great circles and all are remarkably straight. Each is about 100 km wide and more than 2000 km long. Within the zones are asymmetrical ridges and narrow troughs parallel to

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Keywords: ., bookcentury1900, bookcollectionbiodivers, booksubjectoceanbottom