Pillowbud - Formed from fluid lava, we found many of these during our first dive just off of Diamond Head in ~500 m -http://www.mbari.org/expeditions/Hawaii/Leg2/April1.htm

Hyaloclastite - "hyalo" glass, "clast" fragment, "ite" rock, layers of ash. This was coating the seafloor in many spots during both of our dives today--http://www.mbari.org/expeditions/Hawaii/Leg2/April1.htm

View of Diamond Head as we leave the harbor--http://www.mbari.org/expeditions/Hawaii/Leg2/April1.htm

Oahu -http://www.mbari.org/expeditions/Hawaii/Leg1/March27.htm

MBARI expedition-http://www.mbari.org/expeditions/Hawaii/Leg1/March27.htm

The shark which I think is Echinorhinus cookei, the prickly shark, came surprisingly close to the ROV-http://www.mbari.org/expeditions/Hawaii/Leg3/April21.htm

Submarine canyon trash- Leg 3 began promptly at 0800 as we cast off from the pier on Sand Island, and proceeded to exit Honolulu harbor and head round the eastern end of Oahu towards the windward side of the island-http://www.mbari.org/expeditions/Hawaii/Leg3/April21.htm

Canyon lahttp://www.mbari.org/expeditions/Hawaii/Leg3/April21.htmyers -

This shark was inordinately curious about our ROV, and came in close to give the camera a bump- http://www.mbari.org/expeditions/Hawaii/Leg3/April21.htm

This picture shows an octopus (Berrya) living 200 meters deep in the canyon. Fine layering is observed in some of the rocks at the base of the canyon walls- http://www.mbari.org/expeditions/Hawaii/Leg3/April21.htm

Here we see prawns feeding on some seaweed that has been transported down the canyon. Canyons may be an important avenue for nutrients to move from coastal waters to the abyss- http://www.mbari.org/expeditions/Hawaii/Leg3/April21.htm

We took a number of sediment cores and rock samples. This picture shows one of the more interesting rock samples. This is a cemented sandstone that initially appeared to be coral because it is narrow and branching. It turned out to be a hollow tube of sandstone. The sandstone may have become sedimented around the burrow of some creature living in the seafloor- http://www.mbari.org/expeditions/Hawaii/Leg3/April21.htm

offshore the north Kona coast , samples from the third volcanic cone- http://www.mbari.org/expeditions/Hawaii/Leg2/April2.htm

blue coral-http://www.mbari.org/expeditions/Hawaii/Leg2/April2.htm

Pillow lava and rubble with light sediment filling in- http://www.mbari.org/expeditions/Hawaii/Leg2/April2.htm

A white spotted spikefish Hollardia goslinei, otherwise known as the nose-bouncing fish-http://www.mbari.org/expeditions/Hawaii/Leg2/April2.htm

This is one of our cooler samples (how to choose just one??). It is a very old piece of coral reef (Acropora) estimated 430,000 years old. If you look carefully you can see the coral texture.-http://www.mbari.org/expeditions/Hawaii/Leg2/April2.htm

View of exposed coral reef. The nuggets are the staghorn coral fragments (Acropora). The age of this reef has been measured to be 430,000 years old- http://www.mbari.org/expeditions/Hawaii/Leg2/April2.htm

Typical basaltic rubble and a beautiful sponge-http://www.mbari.org/expeditions/Hawaii/Leg2/April2.htm

This is a big chunk of ancient coral reef that we collected on our shallow (second dive) today. It had lots of encrusting algae and white corals living on it. Quite a spectacular sample-http://www.mbari.org/expeditions/Hawaii/Leg2/April3.htm

A basalt cobble we sampled with the manipulator arm. It either weathered out of the eroded coral reef, visible behind the rock, or tumbled down from a flow above-http://www.mbari.org/expeditions/Hawaii/Leg2/April4.htm

Here is one of our carbonate samples we collected at Mahukona that we believe is a piece of an ancient staghorn coral reef-http://www.mbari.org/expeditions/Hawaii/Leg2/April5.htm

http://www.mbari.org/expeditions/Hawaii/Leg2/April6.htm

Spiderfish-http://www.mbari.org/expeditions/Hawaii/Leg2/April6.htm

Srimp-http://www.mbari.org/expeditions/Hawaii/Leg2/April6.htm

Bedded layers of volcanic sandstone-http://www.mbari.org/expeditions/Hawaii/Leg2/April6.htm

Basaltic flow unit on top of breccia-http://www.mbari.org/expeditions/Hawaii/Leg2/April6.htm

Ropey surface on lava flow --http://www.mbari.org/expeditions/Hawaii/Leg2/April6.htm

Pillow basalt, including some intact pillows---http://www.mbari.org/expeditions/Hawaii/Leg2/April6.htm

Radial fractures in the interior of a lava pillow, which was probably truncated by the landslide - http://www.mbari.org/expeditions/Hawaii/Leg2/April6.htm

Mega-bioturbation (whale divot)-http://www.mbari.org/expeditions/Hawaii/Leg2/April7.htm

Spire of sheared, jointed, volcaniclastic sediments -http://www.mbari.org/expeditions/Hawaii/Leg2/April7.htm

Outcrop of chaotic volcaniclastic breccia-)-http://www.mbari.org/expeditions/Hawaii/Leg2/April7.htm

Balloon sponge -)-http://www.mbari.org/expeditions/Hawaii/Leg2/April7.htm

In the gravel we hope to find basalt glass that has shattered off the lava (there is hardly any remaining on these old rocks anymore) -http://www.mbari.org/expeditions/Hawaii/Leg2/April8.htm

This image shows a view of a massive, eroded reef. Some portion of this material will be the skeletons of reef-building corals, such as staghorn corals, that contain aragonite and can be dated. A larger portion will be coralline algae, sandy sediment, and coral that was once aragonite but that has remineralized to calcite, none of which can be dated. We have been lucky to have found some pieces containing corals, so we may be able to date the reefs and constrain the ages of the nearby lava flows - http://www.mbari.org/expeditions/Hawaii/Leg2/April8.htm

The deep-sea butterfly fish, Chaetodon modestus-http://www.mbari.org/expeditions/Hawaii/Leg2/April9.htm

Spiral gorgonian, Iridogorgia sp -http://www.mbari.org/expeditions/Hawaii/Leg2/April9.htm

Many varieties of corals, gorgonians, and crinoids can be found living up high on carbonate outcrops-http://www.mbari.org/expeditions/Hawaii/Leg2/April9.htm

The spotted rattail Caelorinchus spilonotus (with a small octopus in the background-http://www.mbari.org/expeditions/Hawaii/Leg2/April9.htm

Shrimp (probably Heterocarpus sp.) in the sand-http://www.mbari.org/expeditions/Hawaii/Leg2/April9.htm

A basketstar living on a thick, submarine cable stretched out over the ancient carbonate reef-http://www.mbari.org/expeditions/Hawaii/Leg2/April9.htm

This is a cusk eel whose scientific name is Pycnocraspedum -http://www.mbari.org/expeditions/Hawaii/Leg2/April9.htm

A large vase sponge -http://www.mbari.org/expeditions/Hawaii/Leg2/April10.htm

A fan-shaped coral growing on a boulder of eroded limestone- http://www.mbari.org/expeditions/Hawaii/Leg2/April10.htm

A close-up of eroded limestone, showing a swiss-cheese texture-http://www.mbari.org/expeditions/Hawaii/Leg2/April10.htm

A lobe of pillow lava that flowed over the lithified carbonate sand material below it, demonstrating that the volcanic activity postdates the reef-http://www.mbari.org/expeditions/Hawaii/Leg2/April10.htm

Erosional gully-http://www.mbari.org/expeditions/Hawaii/Leg2/April11.htm

Unknovn -http://www.mbari.org/expeditions/Hawaii/Leg2/April11.htm

Pencil cleavage -http://www.mbari.org/expeditions/Hawaii/Leg2/April11.htm

Sea urchin -http://www.mbari.org/expeditions/Hawaii/Leg2/April11.htm -

Tripod fish- -http://www.mbari.org/expeditions/Hawaii/Leg2/April11.htm -

Jigsaw puzzle texture --http://www.mbari.org/expeditions/Hawaii/Leg2/April11.htm -