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Oxygen and carbon isotopic compositions of foraminifers at DSDP Hole 72-517
Oxygen and carbon isotope analyses were performed on monospecific or mixed-species samples of benthic foraminifers, as well as on the planktonic species Globigerinoides ruber... -
Planktonic foraminifera at DSDP Holes 72-516 and 72-518
Quantitative analysis was performed on the Quaternary planktonic foraminiferal fauna from Site 516, near the crest of the Rio Grande Rise, and Site 518, on the lower western... -
General descriptions, organic contents and geolipid ratios at DSDP Leg 72 Holes
Organic matter in sediments from Sites 515, 516, and 517 reflects a history of low marine productivity and of oxygenated bottom waters in the western South Atlantic since the... -
Displaced diatom, discoasters and benthic foraminifers at DSDP Hole 72-515A
Late Pliocene to Recent sediments from the southern Brazil Basin (DSDP Hole 515A, hydraulic piston core) were analyzed for evidence of episodic flow of Antarctic Bottom Water... -
Geochemical analyses at DSDP Holes 72-515B and 72-516F
The petroleum-generating potential of five samples from Hole 515B, Vema Channel, and of 23 samples from Hole 516F, Rio Grande Rise, was analyzed. Organic carbon and pyrolysis... -
Trace element content and coordinates for factors at DSDP Hole 72-516F
This study involves samples of Santonian to Eocene age (Cores 516F-125 to 516F-38) taken from the Rio Grande Rise in the South Atlantic Ocean. These samples are from DSDP Site... -
Total organic carbon content and maceral composition of sediment at DSDP Hole...
The amount, type, and thermal maturation of organic matter in sediments from two DSDP holes in the South Atlantic (Leg 72) were investigated. Isolated kerogens were studied by... -
Occurrence and abundance of diatoms at DSDP Holes 72-515B and 72-516F
Samples from the upper Oligocene and lower Miocene of Holes 515B (Brazil Basin) and 516F (Rio Grande Rise) were examined for fossil marine diatom content. The preservation of... -
Datum events and their estimated magnetochronology at DSDP Site 72-516
Calcareous plankton biostratigraphy (foraminifers and nannoplankton) and magnetostratigraphy of the upper Oligocene to Pleistocene have been studied in hydraulic piston Cores... -
Ferromagnetic fraction of Cretaceous and Cenozoic sediments at DSDP Holes 72-...
Investigation of the ferromagnetic fraction of sediments from the Brazil Basin and Rio Grande Rise shows that its main constituents are magnetite and hematite. The magnetite is... -
Summary of shipboard physical properties of mudstones, carbonates, and clasti...
Compressional-wave velocity, wet-bulk density, and porosity were measured on sediments and rocks recovered from Deep Sea Drilling Project Holes 515B and 516F. Wet-bulk densities... -
Geotechnical engineering characterization of sediments at DSDP Leg 72 Holes
The hydraulic piston coring device (HPC-15) allows recovery of deep ocean sediments with minimal disturbance. The device was used during Leg 72 of the Deep Sea Drilling Project... -
Geochemistry, SiO2 minerals and isotopes at DSDP Hole 72-516F
Cherts recovered during DSDP Leg 72 from Rio Grande Rise sediments (Site 516) consist of both cristobalite and quartz, and contain ghosts of foraminifers and (more rare)... -
Sedimentation rates and geochemistry of the Atlantic and Indic Ocean of Late ...
Studies of the late Miocene-early Pliocene biogenic bloom typically have focused on high-productivity areas in the Indian and Pacific Oceans in order to achieve high resolution... -
Occurrence and isotopic composition (δ¹⁸O, δ¹³C) of benthic foraminifera in s...
Changes in the vertical water mass structure of the Vema Channel during the Pliocene have been inferred from benthic foraminiferal assemblages and stable isotopic analyses from... -
Age and oxygen isotope data for bulk carbonate from DSDP Sites 41-366 and 72-...
A numerical model which describes oxygen isotope exchange during burial and recrystallization of deep-sea carbonate is used to obtain information on how sea surface temperatures... -
Chemical composition of sediments at DSDP Site 72-516
Sediment samples (32) from DSDP Holes 516 and 516F, Leg 72 were subjected to INAA (instrumental neutron activation analysis). Thirty-two major, minor and trace elements were... -
Alkali contents, Sr isotope and U-Th-Pb data for ocean crust vein minerals fr...
Cation exchange experiments (ammonium acetate and cation resin) on celadonite-smectite vein minerals from three DSDP holes demonstrate selective removal of common Sr relative to... -
Stable carbon and oxygen isotope ratios of Miocene to Recent foraminifera fro...
Miocene to Recent species of planktic foraminifera in the Globorotalia (Globoconella) lineage evolved entirely within the thermocline. All species are most abundant within... -
Minor-element chemical analyses of Hole 72-516F
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