-
(Table 1) Lithology of DSDP Hole 72-516F sediments
Drilling at Site 516 on the northern shoulder of the main Rio Grande Rise has improved our understanding of the tectonic evolution and subsidence history of the Rise and of the... -
(Table 1) Oxygen and carbon isotopes and calcium carbonte of bulk carbonate a...
A detailed oxygen and carbon isotope study of the upper Maestrichtian-lower Paleocene section of Hole 516F from the Rio Grande Rise reveals that large isotopic anomalies are... -
(Appendix) Ostracodes at DSDP Leg 72 Holes
From the study of the ostracodes of Sites 516, 517, and 518 in comparison with those of Sites 21, 22, and 357, we can show that a time lag (early to late Oliogene) existed... -
(Table 1) Radiolarians in the Oligocene-Miocene at DSDP Hole 72-515B
The Neogene of the southwestern Atlantic is virtually barren of biogenic silica. Of the four sites drilled on Leg 72, only two contained identifiable radiolarian specimens. In... -
(Appendix) Benthic foraminifera distribution of upper Creatceous and Paleocen...
Benthic foraminifers of the Coniacian-Santonian through the Paleocene were recovered from a continuous pelagic carbonate section from Hole 516F on the Rio Grande Rise.... -
(Appendix) Distribution of planktonic foraminifers at DSDP Hole 72-516F, Coni...
During Leg 72 in the western South Atlantic, Cretaceous sediments were recovered only at Hole 516F (Rio Grande Rise). Late Cretaceous planktonic foraminifers were found in Cores... -
(Table 1) Benthic foraminifera at DSDP Site 72-516
DSDP Site 516 contains a complete middle Eocene to lower Miocene interval with a well-developed Oligocene sequence that is more than 300 m thick. In this paper, the most... -
(Table 2) Duration of the polarity change process at DSDP Holes 72-515A and 7...
A study has been made of downhole declination changes of the horizontal component of the natural remanent magnetization of unopened whole-core sections recovered by use of the... -
(Table 1) Summary of densities and compressional-wave velocities at DSDP Hole...
Compressional-wave velocities were measured in 9 samples from the 18 m of igneous basement penetrated by drilling at Hole 516F. Wet-bulk densities range from 2.50 to 2.92... -
(Table 1) Physical properties at DSDP Hole 72-516F
Forty indurated sediment samples from Site 516 were studied to determine the cause of acoustic anisotropy in carbonate- bearing deep-sea sediments. Recovered from sub-bottom... -
(Table 3) Physical properties of DSDP Hole 72-515A
Hole 515A was drilled in the southern Brazil Basin by the Glomar Challenger on DSDP Leg 72, using the newly developed hydraulic piston corer (HPC). A total of 108 m of... -
(Table 1) K-Ar age determinations on biotite from coarse sand within DSDP Sam...
Qualitative petrographic study of selected clastic horizons within the Eocene section of Hole 516F has revealed the presence of abundant fine-grained lithic fragments, probably... -
(Table 1) K, Rb, Cs, Sr, and 87Sr/86Sr in vein materials from DSDP Hole 72-516F
A well-constrained Rb/Sr isochron of secondary celadonites and carbonate from DSDP Hole 516F yields an age of 70.1 ± 1.6 Ma. This age is younger than the age of crust formation... -
(Table 1) Basalt geochemsitry at DSDP Hole 72-516F
Basalts from Hole 516F, DSDP Leg 72 on the Rio Grande Rise are tholeiitic in character but differ from normal mid-ocean ridge basalts in the South Atlantic in higher... -
(Table 1) Major and trace elements of basalts at DSDP Hole 72-516F
The geochemistry of basalts recovered during Leg 72 is described with emphasis on trace elements. Only Hole 516F penetrated basement; the basalts recovered are... -
(Appendix B) Carbonate fraction geochemistry at DSDP Hole 72-516F
This paper presents data on trace elements (Sr, Mg, Na, K, Mn, Fe, Ni, Cr) and isotopes (13C, 18O) on the carbonate fraction of bulk sediments from the Coniacian to Paleocene... -
Vertical distribution of nannofossils in the section of DSDP Site 72-516
Calcareous nannoplankton from 44 samples of a thick (169.5 m) Neogene section of DSDP Site 516 in the South Atlantic was studied. More than 60 species were determined.... -
Stratigraphic distribution pattern of selected Paleogene calcareous nannofoss...
The detailed study of an expanded Paleogene section with abundant, moderate to well preserved calcareous nannofossils from South Atlantic DSDP Site 516 has resulted in a precise... -
Rio Grande Rise data set for DSDP Site 516F
The age model for Site 516F is established by Krahl et al. 2020.The data presented are related to the carbonate content, carbon isotopes and Ba/Fe and Ba/Ti ratio (cps) database...
