Moore, Theodore C., Jr.; Rabinowitz, Philip D.; Boersma, Anne; Borella, Peter E.; Chave, Alan D.; Duee, Gerard; Futterer, Dieter K.; Jiang, Ming Jung; Kleinert, Klaus; Lever, Andrew; Manivit, Helene; O'Connell, Suzanne; Richardson, Stephen H.; Shackleton, Nicholas J. (1983): The Walvis Ridge transect, Deep Sea Drilling Project Leg 74; the geologic evolution of an oceanic plateau in the South Atlantic Ocean. Geological Society of America (GSA), Boulder, CO, United States, Geological Society of America Bulletin, 94 (7), 907-925, georefid:1983-045330

Abstract:
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.
Coverage:
West: 1.0000 East: 3.3000 North: -28.0000 South: -30.3000
Relations:
Expedition: 74
Site: 74-525
Site: 74-526
Site: 74-527
Site: 74-528
Site: 74-529
Data access:
Provider: SEDIS Publication Catalogue
Data set link: http://sedis.iodp.org/pub-catalogue/index.php?id=1983-045330 (c.f. for more detailed metadata)
This metadata in ISO19139 XML format