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Preliminary Analysis Of Cores From North San Francisco Bay, California

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GC-3 and BC-3 Analyses


Field Descriptions of GC-3 and BC-3
Core ID Length (m) Latitude Longitude Setting Description
BC3 0.43 38� 04' 31.459 122� 21' 47.979 Middle Shoal Water depth 3.3m
GC3 2.86 38� 04' 31.459 122� 21' 47.979 Middle Shoal Complete penetration; green-gray mud plus a few shells on outside of barrel; CC sample; Top section: gray + some brownish sediment; Bottom section: broken, small shell pieces in upper part, coarser grained material and broken shell pieces in middle part.

  X-radiographs (0-300 cm)

Click on the above link to view X-ray scans for BC-3 and GC-3.


Magnetic Susceptibility and X-ray Descriptions

Combined graph showing higher magnetic values (about 40) in the upper 120 cm and lower values (about 20) in the following 160 cm.

Click image for a larger version (80 kb JPEG)

 

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maintained by Carolyn Donlin
last modified 19 February 2003 (lzt)