Moore, Theodore C., Jr. et al. (1983): The Walvis Ridge transect, Deep Sea Drilling Project Leg 74; the geologic evolution of an oceanic plateau in the South Atlantic Ocean

Leg/Site/Hole:
DSDP 74
DSDP 74 525
DSDP 74 526
DSDP 74 527
DSDP 74 528
DSDP 74 529
Identifier:
1983-045330
georefid
Creator:
Moore, Theodore C., Jr.
Univ. R.I., Grad. Sch. Oceanogr., Kingston, RI, United States
author
Rabinowitz, Philip D.
Tex. A&M Univ., Dep. Oceanogr., United States
author
Boersma, Anne
Lamont-Doherty Geol. Obs., United States
author
Borella, Peter E.
Scripps Inst. Oceanogr., United States
author
Chave, Alan D.
Univ. Sci. et Tech. Lille, Lab. Geol. Stratigr., France
author
Duee, Gerard
Univ. Kiel, Geol.-Palaontol. Inst., Federal Republic of Germany
author
Futterer, Dieter K.
Univ. Tubingen, Geol. Inst., Federal Republic of Germany
author
Jiang, Ming Jung
Univ. East Anglia, Sch. Environ. Sci., United Kingdom
author
Kleinert, Klaus
BRGM, Lab. Palynol., France
author
Lever, Andrew
Woods Hole Oceanogr. Inst., United States
author
Manivit, Helene
Mass. Inst. Technol., Dep. Earth Planet. Sci., United States
author
O'Connell, Suzanne
Univ. Cambridge. Godwin Lab., United Kingdom
author
Richardson, Stephen H.
author
Shackleton, Nicholas J.
author
Identification:
The Walvis Ridge transect, Deep Sea Drilling Project Leg 74; the geologic evolution of an oceanic plateau in the South Atlantic Ocean
1983
Geological Society of America Bulletin
Geological Society of America (GSA), Boulder, CO, United States
94
7
907-925
Walvis Ridge formed at a mid-ocean ridge at anomalously shallow elevations. Pillowed basalt and massive flows alternating with nannofossil chalk and limestone that contain a significant volcanogenic component. Rapid sea-level lowering in the mid-Oligocene. Average accumulation rates during the Cenozoic indicate three peaks in the rate of supply of carbonate to the sea floor. Dissolution had a marked effect on sediment accumulation in the deeper sites. Flora and fauna are temperate. Cretaceous-Tertiary boundary recovered in four sites drilled, with sediments containing well-preserved nannofossils but poorly preserved foraminifera.--Modified journal abstract.
English
Serial
Coverage:Geographic coordinates:
North:-28.0000
West:1.0000East: 3.3000
South:-30.3000
Oceanography; algae; Atlantic Ocean; basalts; bioclastic sedimentation; biostratigraphy; carbonate compensation depth; carbonate rocks; Cenozoic; chalk; clastic sediments; composition; Cretaceous; Deep Sea Drilling Project; DSDP Site 525; DSDP Site 526; DSDP Site 527; DSDP Site 528; DSDP Site 529; Foraminifera; igneous rocks; Invertebrata; IPOD; lava; Leg 74; Maestrichtian; marine sedimentation; marine sediments; Mesozoic; microfossils; nannofossils; ocean floors; oceanography; ooze; paleoclimatology; paleomagnetism; Plantae; plateaus; Protista; sea-floor spreading; sedimentary rocks; sedimentation; sedimentation rates; sediments; Senonian; South Atlantic; Southeast Atlantic; Tertiary; thallophytes; Upper Cretaceous; volcanic rocks; Walvis Ridge;
.