. The Earth beneath the sea : History . III I I 10 20 30 40 50 ^7A PEAK AREA / 10A PEAK AREA X 4 ^Je aS' \-] I I \ L 100 200 300 400 - 500 600 700 0 10 20 PERCENT QUARTZ 800 Fig. 8. The quartz, M/I and chlorite values in Capricorn 50 BP as a function of depth. 4. Vertical Distribution A. North Pacific The distribution of clay minerals in the North Pacific falls into two categories of variation versus depth profiles: (1) There is a continuous decrease in the Mjl ratio with depth in a few cores taken very close to shore. A concomitant increase in the A ratio and a decrease in the
. The Earth beneath the sea : History . III I I 10 20 30 40 50 ^7A PEAK AREA / 10A PEAK AREA X 4 ^Je aS' \-] I I \ L 100 200 300 400 - 500 600 700 0 10 20 PERCENT QUARTZ 800 Fig. 8. The quartz, M/I and chlorite values in Capricorn 50 BP as a function of depth. 4. Vertical Distribution A. North Pacific The distribution of clay minerals in the North Pacific falls into two categories of variation versus depth profiles: (1) There is a continuous decrease in the Mjl ratio with depth in a few cores taken very close to shore. A concomitant increase in the A ratio and a decrease in the A ratio was observed. The 3,5 A ratio remained constant with dej^th. (2) The Mil ratio shows abrupt changes with depth where Tertiary sediments are encountered. In Capricorn 50 BP, the typical Mjl ratio discontinuity, due to sediment passing downwards from the Recent to the Tertiary, is accompanied by large discontinuities in the and A ratios. Below the dis- continuity the 10, , , and A jDeaks were nearly or completely absent (Fig. 8), whereas the 17 A peak increased in intensity.
Size: 1398px × 3575px
Photo credit: © The Bookworm Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookcollectionbiodivers, booksubjectoceanbottom
