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Uvigerina spp. minor element and derived δ¹⁸Oseawater records over the Mid-Pl...
During the Mid-Pleistocene Transition (MPT), the dominant glacial-interglacial cyclicity as inferred from the marine d18O records of benthic foraminifera (d18Obenthic) changed... -
(Table 1) Carbon and isotopic composition of organic carbon in sediments from...
We have analyzed inorganic and organic carbons and determined the isotopic composition of both sedimentary organic carbon and inorganic carbon in carbonates contained in... -
(Table 1) Interstitial water chemistry at DSDP Leg 59 Holes
Interstitial water studies of samples from Leg 59 show small concentration variations from sea water in Sites 447 and 451 but very large concentration changes in Site 450. A... -
(Table 1) Interstitial-water chemistry at DSP Leg 58 Holes
Interstitial waters from several sites drilled during Leg 58 have been analyzed for major constituents. Data for Sites 442, 443, and 444 in Shikoku Basin indicate that only... -
(Table 1) Interstitial-water chemistry at DSDP Hole 61-462
Concentration gradients of Ca, Mg, K, Sr, and Li at Site 462, Leg 61, are linear with depth; large changes occur in the unsampled, low-porosity limestone-chert zone between 375... -
(Table 1) Interstitial water chemistry at DSDP Leg 63 Holes
Interstitial water studies of drill sites off the California Continental Borderland (Sites 467, 468, 469) reveal that fresh water can penetrate through the sediments as far as... -
(Table 1) Interstitial water chemistry at DSDP Leg 65 Holes
Studies of the chemical composition of interstitial waters obtained at Sites 482, 483, 484, and 485 on DSPP Leg 65 have revealed the following: (1) Early diagenetic processes in... -
(Table 1) Sulfur isotopes, total sulfur, and degree of oxidation of basalt sa...
Whole-rock basalt samples from the upper half of Deep Sea Drilling Project Hole 504B have oxygen-isotope compositions typical of mid-ocean-ridge basalts which have experienced a... -
(Table 1) Sulfur isotopes, total sulfur, and degree of oxidation of basalt sa...
About 150 basalt samples from Hole 504B, near the Costa Rica Rift were analyzed for sulfur content and sulfur-isotope composition. The basement in Hole 504B can be divided into... -
(Table 1) Organic geochemistry at DSDP Leg 71 Holes
Forty-three core samples from Sites 511 through 514 of DSDP Leg 71 were analyzed geochemically. The black shales at the bottom of Hole 511, in the basin province of the Falkland... -
(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) Interstitial water chemistry at DSDP Leg 72 Holes
Interstitial waters collected at Sites 515 and 516 during DSDP Leg 72 have been analyzed for major and minor constituents. At both sites increases in dissolved calcium and... -
(Table 1) Interstitial water chemistry at DSDP Leg 73 Holes
Interstitial waters obtained from a transect east from the Mid-Atlantic Ridge on progressively older oceanic crust (Sites 519-522) indicate a general absence of concentration... -
(Table 1) Interstitial water chemistry at DSDP Leg 76 Holes
Low salinities and strong opposing fluctuations between chlorinity and interstitial water d18O and dD characterize the region of gas-hydrate occurrence at Site 533. In addition... -
(Table 1) Concentrations and carbon isotopic compositions of CH4 and CO2 at D...
The principal gaseous carbon-containing components identified in the first 400 m of sediment at Deep Sea Drilling Project Site 533, Leg 76, are methane (CH4) and carbon dioxide... -
(Table 1) Interstitial water chemistry at DSDP Leg 78A Holes
Studies of interstitial water carried out during Deep Sea Drilling Project Leg 78A (Sites 541, 542, and 543) have revealed that alteration of volcanic material dispersed in the... -
(Table 1) Interstitial water chemistry at DSDP Leg 80 Holes
Interstitial water studies of sediments recovered during DSDP Leg 80 (Goban Spur transect) indicate a well-developed dissolved-sulfate minimum at Site 548 resulting from... -
(Table 1) Interstitial water chemistry at DSDP Leg 81 Holes
Interstitial water studies on samples obtained during Leg 81 have revealed substantial changes with depth in dissolved calcium, magnesium, strontium, potassium, and lithium.... -
(Table 1) Sulfur content and sulfur-isotope ratios at DSDP Leg 82 Holes basalts
The sulfur contents of 21 basalt samples from four DSDP Leg 82 holes were determined and the isotopic compositions of sulfur were measured on 15 of them. Most of the basalts are... -
(Table 1) Lead isotopic composition and concentration at DSDP Leg 82 Holes
The aim of DSDP Leg 82 was to decipher the temporal and spatial evolution of Azores Plume. The Pb-isotopic results of this leg are rather complex, and can be summarized as...
