World Data Service for Geophysics
Index to Marine and Lacustrine Geological Samples (IMLGS)
Manus Basin. Samples 2,3,4 and one unnumbered sample available from this dredge.
|Comments:||~35 kg of glassy, vesicular lavas; poryphyritic. 1 massive, vesicular lava with hydrothermal staining & small glass patches. Group of sheet flows - lot of fresh glass; striated textured surface. 2 bulbous lavas. Few small fragments with ropey texture. All have very fresh-looking glass! 3 samples (sheet flow types) with thin glass -- palagonitization, manganese coating - porphyritic. 6 mudstones: brecciated + finegrained (+ small bits) - brown/tan & gray ones!|