-
Benthic and planktic foraminiferal stable isotope record and coccolith abunda...
The Indian Summer Monsoon (ISM) is an inter-hemispheric and highly variable ocean-atmosphere-land interaction that directly affects the densely populated Indian subcontinent.... -
Os and Tl isotope measurements from 109D-C and ODP Hole 121-756B
This study presents a high-resolution record of osmium and thallium isotopes in a ferro-manganese (Fe-Mn) crust from the Indian Ocean, Antipode 109D-C. These results, when... -
Osmium isotope composition of ODP Hole 121-758A
This study presents osmium (Os) isotope and elemental data for cleaned planktic foraminifera, authigenic Fe-Mn oxyhydroxides and pelagic carbonate host sediments from ODP site... -
Helium concentrations of late Miocene sediments
Throughout the history of the Solar System, Earth has been bombarded by interplanetary dust particles (IDPs), which are asteroid and comet fragments of diameter 1-1,000 µm. The... -
Magnetic petrology of ODP Leg 121 holes
Given the importance of the inversion of seamount magnetic anomalies, particularly to the motion of the Pacific plate, it is important to gain a better understanding of the... -
Lower Jaramillo polarity transition records from ODP Holes 108-665A and 121-758B
Two records of the geomagnetic polarity transition at the beginning of the Jaramillo Subchron (0.97 Ma) have been obtained from sediments in the equatorial Atlantic (Leg 108,... -
Magnetostratigraphy of Paleogene and upper Cretaceous sediments from Broken R...
Broken Ridge represents a fragment of the oceanic Kerguelen-Heard platform, constructed at high southern latitudes in the middle Cretaceous and rifted apart during the middle... -
Chemical composition of Ninetyeast Ridge basalts
On Leg 121 of the Ocean Drilling Program, we recovered basaltic rocks from a total of three basement sites in the southern, central, and northern regions of Ninetyeast Ridge.... -
Low-molecular-weight hydrocarbons in sediments of Broken Ridge and Ninetyeast...
Core samples taken during Leg 121 drilling aboard the JOIDES Resolution in the central Indian Ocean were analyzed for their low-molecular-weight hydrocarbon contents.... -
Grain size record of Oligocene to Pleistocene sediments from Broken Ridge
At Ocean Drilling Program Sites 752 and 754, located on Broken Ridge in the eastern Indian Ocean, we recovered a sequence of shallow-water pelagic sediments that span the past... -
Oligocene strontium isotope stratigraphy of Indian Ocean sediments
Strontium isotope (87Sr/86Sr) ages have been established for Oligocene samples of Leg 119 Site 744, Leg 120 Sites 747 and 748, and Leg 121 Sites 756 and 757. Ages were... -
Stable oxygen and carbon isotope record of upper Maestrichtian to lower Eocen...
Oxygen and carbon isotope ratios of benthic foraminifers were measured on the continuous middle to lower bathyal sedimentary sequence dated from the upper Maestrichtian to lower... -
Cretaceous-Paleogene biomagnetostratigraphy of ODP Leg 121 sites
Broken Ridge, in the eastern Indian Ocean, is a shallow-water volcanic platform which formed during the Early to middle Cretaceous at which time it comprised the northern... -
Geochemistry and petrology of ODP Leg 121 basalts
Basement lavas from Sites 756, 757, and 758 on Ninetyeast Ridge are tholeiitic basalts. Lavas from Sites 756 and 757 appear to be subaerial eruptives, but the lowermost flows... -
Isotope geochemistry of Ninetyeast Ridge basalts
The Ninetyeast Ridge lavas have Sr and Nd isotopic ratios intermediate between those of Indian Ocean MORBs and those of the very enriched Kerguelen hot spot. In an Nd-Sr isotope... -
Occurrence and chemistry of microtektites of ODP Site 121-758
The Toba lake event, the Australasian microtektite event, and the Cretaceous/Paleogene boundary were analyzed on the basis of foraminifers, carbonate content, trace elements,... -
Organic carbon geochemistry of ODP Leg 121 samples
Organic petrological and geochemical analyses were performed on samples cored on Broken Ridge and Ninetyeast Ridge in the Central Indian Ocean during Leg 121. Organic carbon... -
Stable isotope composition of pore waters and carbonate veins of ODP Leg 121 ...
The oxygen isotopic composition of the pore waters from the sediments and the oxygen and carbon isotopic composition of carbonate veins from basalts of Leg 121 were analyzed.... -
Geochemistry of ODP Hole 121-752A
The present study involves the analysis and interpretation of geochemical data from a suite of sediment samples recovered at ODP Hole 752A. The samples encompass the time period... -
Late Neogene carbonate sedimentation and stable isotope record of ODP Site 12...
The evolution of oceanic and climatic conditions the northeast Indian Ocean during the last 7 m.y. is revealed in the sediments from Site 758. We present detailed and continuous...