7 research outputs found
Construction of promoter-probe shuttle vectors forEscherichia coli and corynebacteria on the basis of promoterless α-amylase gene
No full textImpact of T-RFLP data analysis choices on assessments of microbial community structure and dynamics
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Soyasaponin Ab Ameliorates Colitis by Inhibiting the Binding of Lipopolysaccharide (LPS) to Toll-like Receptor (TLR)4 on Macrophages
No full textMeteoric fluid‐rock interaction in Variscan shear zones
No full textInternational audienceVariscan shear zones in the Armorican Massif represent sites of strong fluid‐rock interaction. The hydrogen isotope composition of muscovite (δDMs) from syntectonic leucogranite allows to determine the source of fluids that infiltrated the footwall of three detachment zones and the South Armorican Shear Zone. Using temperatures of hydrogen isotope exchange estimated from microstructural data, we calculate the hydrogen isotope ratios of water (δDwater) present within the shear zones during high‐temperature deformation. A ~40‰ difference in δDwater values from deep to shallow crustal level reveals a mixing relationship between deep crustal fluids with higher δD values that range from −34 to −33‰, and meteoric fluids with δD values as low as −74‰ in the upper part of detachment footwalls
