Benthic foraminifera indicate Glacial North Pacific Intermediate Water and reduced primary productivity over Bowers Ridge, Bering Sea, since the Mid-Brunhes Transition
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چکیده
منابع مشابه
IODP Expedition 323: Pliocene-Pleistocene paleoceanography and climate history of the Bering Sea
The primary objective of drilling at Site U1340 (Site BOW-12B) was to study highresolution Pliocene and Pleistocene paleoceanography in the southernmost part of Bering Sea at a topographic high location on the Bowers Ridge where relatively good calcium carbonate preservation is expected. The Bowers Ridge is well situated to study the past extent of water mass exchange with the Pacific Ocean thr...
متن کاملIODP Expedition 323: Pliocene-Pleistocene paleoceanography and climate history of the Bering Sea
Background and objectives The primary objective of drilling at Site U1341 (BOW-14B) was to study high-resolution Plio-Pleistocene paleoceanography in the southern part of Bering Sea at a western flank location of the Bowers Ridge. Previous DSDP coring (Site 188) and other piston core studies in the region documented relatively high sedimentation rates of 100 to 138 m/m.y., respectively, and pre...
متن کاملCarbon and oxygen isotopic records of benthic foraminifera from the Northeast Indian Ocean: implications on glacial-interglacial atmospheric CO 2 changes
We present here continuous records of 8180 and t~13C in benthic foraminifera, extending well into the last ice age, in two piston cores from the Andaman Sea (sill depth ~ 1.3 km) and the Bay of Bengal (3 km). These show that, contrary to the previous reports, the glacial to interglacial shift in 613C at mid-depths in the Northeast Indian Ocean was indistinguishable from the mean oceanic 313C ch...
متن کاملCharacteristics and Variability of Storm Tracks in the North Pacific, Bering Sea, and Alaska*
The North Pacific and Bering Sea regions represent loci of cyclogenesis and storm track activity. In this paper climatological properties of extratropical storms in the North Pacific/Bering Sea are presented based upon aggregate statistics of individual storm tracks calculated by means of a feature-tracking algorithm run using NCEP–NCAR reanalysis data from 1948/49 to 2008, provided by the NOAA...
متن کاملBias-Corrected Size Trends in Chum Salmon in the Central Bering Sea and North Pacific Ocean
We estimated bias-corrected mean fork lengths of gillnet-caught chum salmon using a size selectivity estimate of the gillnet to test how the bias correction affects the estimated temporal pattern of chum salmon body size, during 1971–1994 and 1994–2007. Results showed bias-corrected mean fork lengths were smaller than uncorrected means. Therefore, when examining ontogenetic changes in fish size...
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ژورنال
عنوان ژورنال: Journal of Micropalaeontology
سال: 2019
ISSN: 2041-4978
DOI: 10.5194/jm-38-177-2019