962 datasets found

Leg 94 represents the last of four transects of sites set up by the Ocean Paleoenvironment Panel to examine climatic and oceanographic changes in the Pacific and Atlantic...

The realization that ridgecrest hydrothermal activity is more common along the faster spreading centers of the Pacific Ocean than along the slowly spreading Mid- Atlantic Ridge...

Sites 595 and 596 of DSDP Leg 91 are located in one of the most poorly studied tracts of seafloor in the world at the time of the survey. During a preparation survey done by the...

Because drilling during the DSDP-IPOD program had not yet succeeded in sampling Jurassic sediments from the Mesozoic superocean, remnants of which remain in the western Pacific,...

The DSDP Leg 87 expedition was dedicated to drilling active margins and was designed to investigate two very different regions: the Nankai Trough and the Japan Trench. The broad...

The DSDP Leg 87 expedition was dedicated to drilling active margins and was designed to investigate two very different regions: the Nankai Trough and the Japan Trench. The broad...

One of the long-standing goals of the Deep Sea Drilling Project (DSDP) has been to study the oceanic paleoenvironment of the western Pacific through deep sea drilling. Leg 86...

SDP Leg 85 was designed to take advantage of a new hydraulic piston corer (HPC) enabling to recover fairly undisturbed samples from the upper 100 to 300 m and thus to carry out...

The Middle America Trench was first drilled in 1979 during Leg 66 off Oaxaca, Mexico and Leg 67 off Guatemala as part of a broad effort to study the mechanics of plate...

One of the most important geologic discoveries of the 1960s was the remarkable uniformity of the basalts produced at mid-ocean ridges. These basalts have a markedly different...

Deep Sea Drilling Project Leg 80 investigated the structural evolution and depositional history of the Goban Spur and the adjacent Porcupine Abyssal Plain. From the results of...

Seaward of the Mazagan Escarpment and slope is a band about 50 km wide where structures interpreted as diapirs stand like columns within a pile of sediments about 5 km thick ....

The principal goal of Site 543 was definition of an oceanic reference section. One of the specific objectives was to provide a physical-property profile through the undisturbed...

The drilling of Leg 77 is part of an overall program by the JOIDES Passive Margin Panel to study the evolution of the western North Atlantic passive margin. The history of the...

The continental edge of eastern North America is the passive margin with the oldest geological history available in the modern oceans. Rifting and seafloor spreading between the...

Site 530 is located in the southeastern corner of the Angola Basin, about 20 km north of the Walvis Escarpment, near the eastern end of the easternmost (or Frio) segment of the...

Leg 73 was the middle of five legs on South Atlantic paleoenvironments planned by the JOIDES Ocean Paleoenvironment (OP) Panel during the years from 1975 to 1980. The idea of...

The drilling plan for Leg 74 of the Deep Sea Drilling Project was designed to address three main scientific topics: (1) the history of the deep-water circulation in the...

DSDP Leg 72 of the Glomar Challenger addressed paleoceanographic objectives in the southwestern Atlantic. It was planned to extend the observations and interpretations from the...

The high-latitude South Atlantic Ocean and the adjacent Antarctic Ocean have throughout Mesozoic and Cenozoic time undergone pronounced geographic alterations that have produced...