FN Archimer Export Format
PT J
TI Ocean crust geothermal processes : a perspective from the vantage of leg 54 drilling
BT 
AF HEKINIAN, Roger
   ROSENDAHL, Bruce R.
   NATLAND, James H.
AS 1:;2:;3:;
FF 1:;2:;3:;
TC 0
UR https://archimer.ifremer.fr/doc/1980/publication-5328.pdf
LA English
DT Article
DE ;Histoire Ifremer
AB Two distinct sedimentary facies produced by sea-floor hydrothermal activity were cored during Deep Sea Drilling Project Leg 54.  The first is equivalent to the typical basal iron- and manganese-rich, clayey mud recovered at many DSDP sites.  It was sampled as a dispersed component throughout the cores taken in small sediment ponds in several sites within 120 km of the East Pacific Rise at 9°N.  We infer that this component was originally deposited as iron hydroxides dispersed from high-temperature vents over the axial magma chamber of the East Pacific Rise.  In the sediments, the iron hydroxides have reacted diagenetically with siliceous microfossil tests and detrital clays to form K- and Fe-rich clays with variable SiO(2)/Fe(2)O(3) and Fe(2)O(3)/Al(2)O(3), ratios. [NOT CONTROLLED OCR]
PY 1980
SO Initial Reports of the Deep Sea Drilling Project
PU U. S. Government
VL 54
BP 267
EP 294
ID 5328
ER

EF