(Figure 2) Planktonic foraminifera abundance in DSDP Hole 93-603C

• Main Authors: Maalouleh, Kayed, Moullade, Michel
• Format: Dataset
• Language: English
• Published: PANGAEA 1987
• Subjects: 93-603C; Candeina nitida; Deep Sea Drilling Project; Dentoglobigerina altispira; DEPTH; sediment/rock; DRILL; Drilling/drill rig; DSDP; DSDP/ODP/IODP sample designation; Epoch; Foraminifera; planktic abundance; planktic preservation; Globigerina nepenthes; Globigerinella aequilateralis; Globigerinita glutinata; Globigerinoides conglobatus; Globigerinoides fistulosus; Globigerinoides obliquus extremus; Globigerinoides quadrilobatus sacculifer; Globigerinoides quadrilobatus trilobatus; Globigerinoides ruber; Globigerinoides ruber pink; Globorotalia crassaformis; Globorotalia exilis; Globorotalia hirsuta; Globorotalia inflata; Globorotalia margaritae; Globorotalia miocenica; Globorotalia multicamerata; Globorotalia pertenuis; Globorotalia praehirsuta; Globorotalia praemiocenica; Globorotalia puncticulata; Globorotalia scitula; Globorotalia tosaensis; Globorotalia truncatulinoides; Globorotalia tumida menardii; Globorotalia ungulata; Glomar Challenger; Leg93; Neogloboquadrina acostaensis humerosa; Neogloboquadrina dutertrei; Neogloboquadrina pachyderma; Orbulina universa; Planktic foraminifera zone; Pulleniatina finalis; Pulleniatina obliquiloculata; Planktonic foraminifera
• Online Access: https://doi.pangaea.de/10.1594/PANGAEA.250508; https://doi.org/10.1594/PANGAEA.250508

Three holes were drilled at Site 603 on the continental rise off the U.S. east coast during DSDP Leg 93. A thick Pliocene section and a few meters of lowermost Quaternary sediments were recovered in Hole 603C. A detailed biostratigraphic analysis, based on planktonic foraminiferal distribution, allowed us to delineate precisely all the Pliocene zones (sensu Berggren, 1977). The Quaternary sequence was eroded beyond Ericson's Zone P. The calculated sediment accumulation rate remained relatively high during most of the Pliocene, reaching a maximum of 150 m/Ma in Zone PL4. Quantitative micropaleontological methods enabled us to delineate several paleoclimatic and paleoceanographic events, including those at 4.3 and 3.4 Ma.