Fig. 1From: Magnesium silicate chimneys at the Strytan hydrothermal field, Iceland, as analogues for prebiotic chemistry at alkaline submarine hydrothermal vents on the early EarthChimneys at the Strytan hydrothermal vent system (A), Sampling of solids and fluids (B). Close up of samples S1 (C) and S2 (D). Zones identified in samples (E) S1; S1(tube) and S1(tip) are in yellow and green, respectively, and (F) S2; S2(top) and S2(bottom) are in yellow and green, respectivelyBack to article page