Element concentrations and stable oxygen and carbon isotope ratios of basalts from ODP Hole 148-896A, supplement to: Torsvik, Terje; Furnes, Harald; Muehlenbachs, Karlis; Thorseth, Ingunn H; Tumyr, Ole (1998): Evidence for microbial activity at the glass-alteration interface in oceanic basalts. Earth and Planetary Science Letters, 162(1-4), 165-176

Terje Torsvik, Harald Furnes, Karlis Muehlenbachs, Ingunn H Thorseth & Ole Tumyr
A detailed microbiological and geochemical study related to the alteration of basaltic glass of pillow lavas from the oceanic crust recovered from Hole 896A on the Costa Rica Rift (penetrating 290 m into the volcanic basement) has been carried out. A number of independent observations, pointing to the influence of microbes, may be summarized as follows: (1) Alteration textures are reminiscent of microbes in terms of form and shape. (2) Altered material contains appreciable amounts...
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