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Figure F329. In Expedition 312 samples, (A) bulk density and (B) grain density decrease as porosity increases but considerable variability exists. Gabbro samples with high density for their porosity contain higher percentages of oxide minerals. In Hole 1256D, (C) bulk density appears linearly related to porosity but (D) grain density is only weakly related to porosity. Primary lithology: circles = sheet flows, squares = massive flows, crosses = breccias, triangles = dikes, and diamonds = gabbros. Red = Leg 206, green = Expedition 309, blue = Expedition 312.

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