EX1504L3 (Main Hawaiian Islands and Geologists Seamounts)

Leg 3 of the EX1504 cruise of the Okeanos Explorer

View and download data by expanding each of the dive sites below

Go back to the EX1504 map or the NOAA collections page

EX1504D3-D2 (Kona Precious Coral Bed)
 

Sample Location Rock Type Description Whole Rock Image TS Image TSX Image
OSU-EX1504L3-D2-3 19.8°N, 156.13°W Coral A couple pieces of fossilized coral. No Thin Section No Thin Section
EX1504L3-D4 (McCall Seamount)

 

Sample Location Rock Type Description Whole Rock Image TS Image TSX Image
OSU-EX1504L3-D4-1 18.98°N, 157.11°W Basalt A coarse grained basalt with occasional very large plagioclase crystals (~15mm)…
OSU-EX1504L3-D4-3 18.98°N, 157.11°W Basalt A aphyric basalt with vesicles and fractures with pervasive calcite infill…
OSU-EX1504L3-D4-4 18.98°N, 157.11°W Basalt A trachytic basalt with rare coarse plagioclase phenocrysts…
EX1504L3-D5 (Swordfish Seamount)
 

Sample Location Rock Type Description Whole Rock Image TS Image TSX Image
OSU-EX1504L3-D5-1 18.31°N, 158.46°W Basalt A fairly fresh plagioclase rich basalt (likely traychitic) with small amphibole and clinopyroxene microcrysts…
OSU-EX1504L3-D5-4 18.31°N, 158.46°W Conglomerate A phosphorite with altered clasts and one fairly fresh clast. Thin section is from the fairly fresh clast…
OSU-EX1504L3-D5-6 18.31°N, 158.46°W Basalt A plagioclase rich basalt with both microcrysts (<0.4mm) and phenocrysts (0.8-1.6mm)…
EX1504L3-D6 (Ellis Seamount)

 

Sample Location Rock Type Description Whole Rock Image TS Image TSX Image
OSU-EX1504L3-D6-1 19.23°N, 157.61°W hyaloclastite A highly altered hyaloclastite with ocassional olivine phenocrysts (100% recrystallized to iddingsite)…
OSU-EX1504L3-D6-2 19.23°N, 157.61°W basalt A plagioclase rich basalt with subtrachytic textures…