Ocean circulation in the tropical Indo-Pacific during early Pliocene (5.6-4.2 Ma): Paleobiogeographic and isotopic evidence

  title={Ocean circulation in the tropical Indo-Pacific during early Pliocene (5.6-4.2 Ma): Paleobiogeographic and isotopic evidence},
  author={M. S. Srinivasan and Devesh K. Sinha},
  journal={Journal of Earth System Science},
  pages={315 - 328}
A comparison of late Neogene planktic foraminiferal biogeography and stable isotopic records of shallow dwelling and deep dwelling planktic foraminifera from DSDP sites 214 (Ninetyeast Ridge, northeast Indian Ocean) and 586B (Ontong-Java Plateau, western Equatorial Pacific) provides a clue to the nature of the ocean circulation in the tropical Indo-Pacific during early Pliocene. The present study reveals that the late Neogene planktic foraminiferal data from the eastern and western sides of the… 


ABSTRACT Two late Miocene Tridacna (giant clam) shells from East Kalimantan (Indonesia) were investigated in order to evaluate their potential as subannually resolved paleoenvironmental archives. Via

El Nino's tropical climate and teleconnections as a blueprint for pre-Ice Age climates

[1] At ∼2.7 million years ago the warm equable climates of early and “middle” Pliocene time (used here to mean from ∼5 to ∼2.7 Ma) were replaced by recurring ice ages. Most attempts to explain the

Asian Begonia: out of Africa via the Himalayas?

The large genus Begonia began to diverge in Africa during the Oligocene. The current hotspot of diversity for the genus in China and Southeast Asia must therefore be the result of an eastward

A journey through morphological micropaleontology to molecular micropaleontology

Micropaleontology has undergone a remarkable change over the past 150 years. With the recognition of biostratigraphic utility of microfossils in petroleum exploration, micropaleontology received a

Biogeographic role of the Indonesian Seaway implicated by colonization history of purpleback flying squid, Sthenoteuthis oualaniensis (Lesson, 1830), in the Indo-Pacific Ocean

As a bio]diversity hotspot, the East Indies (Coral) Triangle possesses the highest biodiversity on the earth. However, evolutionary hypotheses around this area remain controversial; e.g., center of



Neogene Planktonic Foraminifers from Deep Sea Drilling Project Sites 502 and 503

Deep Sea Drilling Project Sites 502 (Colombian Basin, western Atlantic Ocean) and 503 (eastern equatorial Pacific Ocean) are well located for comparison of the late Neogene paleoceanographic history

Pliocene-Pleistocene Sediments of the Equatorial Pacific: Their Paleomagnetic, Biostratigraphic, and Climatic Record

Magnetic stratigraphy of 15 oriented cores from the equatorial Pacific was determined as far back as the Gilbert reversed-polarity epoch. Ranges of selected species of four major microfossil groups

Tectonic approach to the Neogene evolution of Pacific-Indian Ocean seaways

Pathways of water between the Pacific and Indian oceans in the Indonesian seas

THE physical structure of the Pacific and Indian oceans is substantially affected by the inter-ocean transport of excess fresh water from the North Pacific Ocean through the Indonesian seas1,2. The

Depth stratification of planktonic foraminifers in the Miocene ocean

  • G. Keller
  • Environmental Science, Geography
  • 1985
A depth stratification of planktonic foraminifers based on oxygen isotopic ranking is proposed for the Miocene. Species are grouped into surface, intermediate, and deep dwellers based upon oxygen

Improved correlation of the late neogene planktonic foraminiferal datums in the equatorial to cool subtropical DSDP Sites, Southwest Pacific: application of the graphic correlation method

To evaluate the reliability of the datums for cross-latitudinal correlation, Shaw's graphic correlation method has been applied and shows that the first order datums are reliable for cross latitudinal correlation whereas the second orderdatums because of their diachroneity are not useful for correlation over wide latitudinal exlent.

Late neogene quantitative planktic foraminiferal biochronology and paleoceanography of DSDP Site 588, Southwest Pacific

Study of fifteen HPC cores was carried out at 150 cm intervals from DSDP site 588 drilled on the Lord Howe Rise during Leg 90 in the southwest Pacific in order to quantitatively determine the first