Publications by authors named "Carlos A Alvarez Zarikian"

Records of element ratios obtained from the Maldives Inner Sea sediments provide a detailed view on how the Indian Monsoon System has varied at high-resolution time scales. Here, we present records from International Ocean Discovery Program (IODP) Site U1471 based on a refined chronology through the past 550,000 years. The record's high resolution and a proper approach to set the chronology allowed us to reconstruct changes in the Indian Monsoon System on a scale of anomalies and to verify their relationships with established records from the East Asian Monsoon System.

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This data article describes data of magnetic stratigraphy and anisotropy of isothermal remanent magnetization (AIRM) from "Magnetic properties of early Pliocene sediments from IODP Site U1467 (Maldives platform) reveal changes in the monsoon system" [1]. Acquisition of isothermal magnetization on pilot samples and anisotropy of isothermal remanent magnetization are reported as raw data; magnetostratigraphic data are reported as characteristic magnetization (ChRM).

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The South Asian Monson (SAM) is one of the most intense climatic elements yet its initiation and variations are not well established. Dating the deposits of SAM wind-driven currents in IODP cores from the Maldives yields an age of 12. 9 Ma indicating an abrupt SAM onset, over a short period of 300 kyrs.

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Article Synopsis
  • The study from Expedition 339 examines sediment cores from the southwestern Iberian margin to understand how Mediterranean Outflow Water (MOW) has circulated from the Pliocene to today.
  • After the Strait of Gibraltar opened about 5.33 million years ago, MOW initially had limited flow into the Atlantic, but increased volumes began entering during the late Pliocene, leading to signs of erosion in sediment layers.
  • The findings suggest that MOW played a significant role in influencing Atlantic Meridional Overturning Circulation and global climate changes while also being affected by tectonic movements.
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