Ocean Drilling Program Slide Set
Slide #1 - #3, #40
JOIDES Resolution was converted in Pascagoula, Mississippi,
in the fall of 1984. She was built in Halifax, Nova Scotia
in 1978 and had previously sailed the world as a top-class
JOIDES Resolution, is 470 feet long and 70 feet wide. The
ship's derrick towers 202 feet above the waterline. A
computer-controlled dynamic positioning system, supported by
12 powerful thrusters and two main shafts, maintains the
ship over a specific location while drilling into water
depths up to 27,000 feet. A seven-story laboratory stack
and other scientific facilities located fore and aft occupy
12,000 square feet.
Slide #4, #29,
The Underway Geophysics Laboratory is on the fantail under
the helipad. While the ship is in transit between drill
sites, digital single-channel seismic reflection profiles
are collected and processed. These profiles provide a
cross-sectional "view" of the earth beneath the seafloor.
Other equipment used in transit are an echo sounder (a
device which measures water depth) and a magnetometer (an
instrument which is towed behind the ship to measure the
earth's magnetic field).
The Ocean Drilling Program is primarily funded by the U.S.
National Science Foundation with significant contributions
from 21 member countries.
Crew preparing to test new drilling technology using a water
hammer drill. ODP was the first to test this technology in
deep ocean waters.
The ship can deploy up to 30,000 feet of drill string.
Complete library, electronic repair, computer and
photographic services are available to the scientists on
the ship. JOIDES Resolution is equipped with more than 100
computers ranging from Macintosh and PC platforms to
powerful Unix systems.
The drawworks is a hoisting mechanism that acts like a giant
fishing reel or winch. It operates the drilling line that
connects to the traveling block and heave compensator. The
traveling block is a system of pulleys that raises and
lowers the drill string. The heave compensator, with a
400-ton working load, compensates for the ship's vertical
Reentry cones are used to reenter an existing hole and are
positioned using either sonar or an underwater television
The pore water sampler/temperature probe measures sediment
temperatures in the hole.
An iron roughneck is a device that spins joints of drill
Slide #13 - #17
Activity on the rig floor. The ship sails with a crew of
65, which includes rig floor personnel, the catering crew
and merchant seamen. The rig floor personnel work around the
clock recovering rocks and sediments from the seafloor.
Slide #18, #23
After whole-core analysis, the cores are split lengthwise.
One half of the core is designated as the working section;
the other half is the archive section, which is described
and photographed for future reference.
Scientists take samples from the working half for both
shipboard and shore-based analysis. The shipboard
curatorial representative inventories all samples and enters
the information in a computer. No samples are taken from
the archive half.
The Multisensor Track System measures the cores' density,
porosity and velocity. It also measures the cores'
The 30-foot (9.5-meters) core is brought from the rig floor
to the "catwalk," a platform outside the laboratories where
the core is prepared for analysis.
Slide #21, #30
Sectioning core on the catwalk. The 9.5-meter cores are
brought here from the rig floor to be sectioned into 1.5-meter lengths.
Slide #22, #33
The paleomagnetic equipment on board the ship gives
scientists the capability to record the magnetization
intensities and directions of rocks and sediments as cores
are recovered. Distinctive patterns of magnetic field
reversal records are used with other stratigraphic data to
tell geologic time within the rocks and sediments.
Thin sections produced aboard ship from hard rocks and
consolidated sediments are examined using petrographic
Slide #24 - #25
Macroscopic and microscopic descriptions of the recovered
core material are obtained in the core laboratory.
Descriptive terminology is defined, providing a common
geological language for scientists from different countries
Sedimentologists and petrologists take turns describing
Scientists are assigned to sampling shifts to obtain
materials for shipboard and shore-based analysis.
The ship's deck provides spectacular views of sunrises and
The underwater television camera, supported by this frame,
greatly enhances the ship's ability to locate and reenter
The drill string reenters a previously drilled hole using
a guide horn as a target for reentry. An acoustic beacon
communicates the guide horn's position continuously to the
computer-based dynamic positioning system. The positioning
system controls the main propulsion system and 12 powerful
thrusters, which maintain the ship's position over the drill
JOIDES Resolution microbiology laboratory. This photo is showing a
"Glove Bag" used to extract pristine samples in an inert
In the physical properties lab, scientists study the bulk,
dynamic, mechanical and thermal properties of material.
Thermal conductivity is measured by a multi-needle probe, a
computer-assisted system that can simultaneously monitor
Other equipment includes a Gamma Ray Attenuation Porosity
Evaluator (GRAPE), a mechanized scanning device that
indirectly measures the bulk density and porosity of rocks
and sediments; an automated pycnometer; a GDS consolidation
system that measures the mechanical properties of a sample;
and a velocimeter.
Physical properties are also measured by lowering
instruments down the drill hole.
Slide #32, #34
At the end of each cruise, core samples are removed from the
ship and delivered to the Bremen Core Repository in Germany
and the Gulf Coast Repository in College Station, Texas, USA.
Cores are housed in refrigerated storage space in the
As soon as a core containing deep-sea sediment arrives on
deck, paleontologists obtain a sample from the core catcher
to examine under the microscope. They assign the sample to
its proper biostratigraphic zone, organizing sedimentary
layers into time units based on the abundance and species of
The Chemistry Lab's equipment performs geochemical analyses
on both organic and inorganic samples.
Safety drills are conducted on a regular basis during each
ODP expedition. In this photo, a scientist is trying on a
safety suit designed to protect a person from exposure to
cold temperature waters.