962 datasets found

Pelagic deposits are the dominant contributors to the sediment layers that blanket ridges and basaltic sea floor in deep basins. Among pelagic constituents, nannofossils...

During Leg 24 three drilling sites were occupied in the Gulf of Aden (231, 232, 233), two in the Somali Basin (234, 235), and three in the western Indian Ocean (236, 237, 238)....

Eight sites were drilled on Leg 22 in the northeastern Indian Ocean. Three sites (214, 216, 217) on Ninetyeast Ridge penetrated a thick sequence of mostly Tertiary calcareous...

The oceanic region between the Tonga-Kermadec Trench and New Zealand to the east and Australia to the west (see map at the back of this volume) has long been regarded as an...

The sea floor of the western Pacific is covered by five stratigraphic units: (l)an eastward thinning wedge of late Tertiary silty clay, primarily of volcanic origin, (2) a...

Basal sediments cored above alkali basalt at Site 183 beneath the Aleutian Abyssal Plain include iron-rich clays, a geothite-bearing calcareous ironstone (23.8% Fe and 4.16% Mn,...

The main objectives of Leg 17 were to establish the regional pattern of oceanic crustal ages in the central Pacific, to obtain cores of the entire stratigraphic succession,...

Site 172 was continuously cored to a depth of 24 meters in a sediment pond 140 kilometers south of the Murray fracture zone. The upper 9 meters consist of a moderate brown...

Leg 14 of the Deep Sea Drilling Project completed 9 holes; 7 were located off NW Africa, 1 in Ceara Abyssal Plain, and 1 on Demerara Rise. Quaternary and Pliocene sediments...

The single "raison d'être" for selecting Site 126 was to explore the pre-evaporite history of the eastern Mediterranean and hopefully to establish the paleoenvironment which...

The western margin of Sardinia (had been explored in the Spring of 1970 by the R/V Jean Charcot of CNEXO. It showed that the basement ridge west of Sardinia lies at the very...

The principle objective at Site 118 was to sample a formation in the Bay of Biscay which had been tentatively ascribed to Lower Cretaceous or older sediments. However it was not...

Seismic reflection profiles across the Labrador Sea by Vema-19 and Charcot-S had revealed a rugged basement topography almost entirely buried by sediments up to 2000 meters...

Orphan Knoll is a pronounced submarine feature at the foot of the continental rise and bounded on its northeast side by the 4000-meter deep abyssal plain of the Labrador Basin....

In view of the fact that thick sections of Neocomian and Jurassic limestone were found in the region off the Bahama Islands (Holes 99A, 100 and 101) a hole was selected for...

The principal objective at this site was the recovery of Mesozoic sediment and a sample of Horizon B (or basement). The location chosen for drilling is about 40 nautical miles...

The origin of the Campeche Escarpment in the Gulf of Mexico has been attributed to several causes. Some suggest that the scarp represents a fault scarp, others suggest that its...

Site 79 is located on the crest of the equatorial Pacific sediment belt (Ewing and others, 1968) and is the westernmost of a series of sites (79, 81, 82 and 83) that follow the...

Site 76 was selected in order to core a thick sequence of sediments north of the Tuamotu ridge that had been crossed by Glomar Challenger justprior to the termination of Leg 8...

Site 75 is located 300 miles southeast of the Marquesas Islands; 400 miles south of Site 74. It is the southernmost of the sites along the N-S line drilled during Leg 8 to...