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DSDP Site 603; first deep (>1000-m) penetration of the continental rise along the passive margin of eastern North America
Drilling at Deep Sea Drilling Project Site 603 has provided the first deep (> 1000-m) penetration of strata beneath the continental rise off the Atlantic margin of North America. Nearly continuously cored through 1585 m of section down to Berriasian pelagic limestones, the site 435 km (270 mi) ea...
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Published in: | Geology (Boulder) 1985-01, Vol.13 (6), p.392-396 |
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Main Authors: | , , , , , , , , , , , , , |
Format: | Article |
Language: | English |
Subjects: | |
Online Access: | Get full text |
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Summary: | Drilling at Deep Sea Drilling Project Site 603 has provided the first deep (> 1000-m) penetration of strata beneath the continental rise off the Atlantic margin of North America. Nearly continuously cored through 1585 m of section down to Berriasian pelagic limestones, the site 435 km (270 mi) east of Cape Hatteras intersected an extensive Lower Cretaceous deep-sea fan complex, which provides new information on the petroleum potential of the continental rise. Hauterivian to early Aptian in age, this 208-m interval of interbedded limestones, sand, and black shale turbidites begs the existence of any post-Valanginian reefs along the Baltimore Canyon Trough. The section at Site 603 confirms the concept that eustatic and other large-scale events subdivide Earth history into distinct chapters allowing the correlation of deep-sea seismic sequence boundaries with continental shelf and margin unconformities. |
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ISSN: | 0091-7613 1943-2682 |
DOI: | 10.1130/0091-7613(1985)13<392:DSFDMP>2.0.CO;2 |