The Global Thermohaline Paleocirculation

Иванова, Е. В.

doi:10.1007/978-90-481-2415-2

Cited by 25 publications

(9 citation statements)

References 463 publications

(1,127 reference statements)

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“…The earth has experienced glacial and interglacial periods since then. During glacial periods, warm, thermohaline return flow may have weakened, and monsoon circulation could have been intensified in winter, but overall ocean circulation patterns were likely similar to the present pattern (39). We believe that quantified dispersal patterns and scaling analyses of this study are reasonable and applicable to the past 5-10 million years.…”

Section: Resultsmentioning

confidence: 55%

Quantifying dispersal from hydrothermal vent fields in the western Pacific Ocean

Mitarai

Watanabe

Nakajima

et al. 2016

Proc. Natl. Acad. Sci. U.S.A.

102

150

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Hydrothermal vent fields in the western Pacific Ocean are mostly distributed along spreading centers in submarine basins behind convergent plate boundaries. Larval dispersal resulting from deep-ocean circulations is one of the major factors influencing gene flow, diversity, and distributions of vent animals. By combining a biophysical model and deep-profiling float experiments, we quantify potential larval dispersal of vent species via ocean circulation in the western Pacific Ocean. We demonstrate that vent fields within back-arc basins could be well connected without particular directionality, whereas basin-to-basin dispersal is expected to occur infrequently, once in tens to hundreds of thousands of years, with clear dispersal barriers and directionality associated with ocean currents. The southwest Pacific vent complex, spanning more than 4,000 km, may be connected by the South Equatorial Current for species with a longer-than-average larval development time. Depending on larval dispersal depth, a strong western boundary current, the Kuroshio Current, could bridge vent fields from the Okinawa Trough to the Izu-Bonin Arc, which are 1,200 km apart. Outcomes of this study should help marine ecologists estimate gene flow among vent populations and design optimal marine conservation plans to protect one of the most unusual ecosystems on Earth.

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Section: Resultsmentioning

confidence: 55%

Quantifying dispersal from hydrothermal vent fields in the western Pacific Ocean

Mitarai

Watanabe

Nakajima

et al. 2016

Proc. Natl. Acad. Sci. U.S.A.

102

150

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“…The tectonic and oceanographic reorganization related to the northern migration of Australia and Africa/Arabia during the Miocene significantly altered the exchange of deep and intermediate water to and from the Indian Ocean (Bialik et al, ; Groeneveld et al, ; Kuhnt et al, ). The resulting tectonic configuration enabled the establishment of a modern‐style circulation pattern in the Indian Ocean (Schott et al, ) and formed the geographical settings for modern style monsoonal precipitation in India (Clift & Webb, and references therein) during the late early to early middle Miocene (Ivanova, ). At the aftermath of the middle Miocene Climate Optimum, the expansion of the Antarctic Ice Sheet during the middle Miocene Climate Transition strengthened the Antarctic Circumpolar Current.…”

Section: Tectonic and Oceanographic Backgroundmentioning

confidence: 99%

Monsoons, Upwelling, and the Deoxygenation of the Northwestern Indian Ocean in Response to Middle to Late Miocene Global Climatic Shifts

Bialik

Auer

Ogawa

et al. 2020

Paleoceanog and Paleoclimatol

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Today, upwelling along the Oman margin in the Arabian Sea is governed by the South Asian Monsoon winds. The Oman upwelling results in the formation of an oxygen minimum zone (OMZ) spanning across the Arabian Sea and large parts of the Indian Ocean. While these conditions are recorded as early as the middle Miocene (~15 Ma), the long‐term dynamics of upwelling in the Arabian Sea are as of yet poorly constrained during the middle to late Miocene. Here, we use organic and inorganic proxies combined with sedimentary and paleontological records to constrain the evolution of upwelling at Ocean Drilling Program Site 722B between ~15 and ~8.7 Ma. Our record shows that Mn depletion occurred at ~14.5 Ma, likely due to regionally confined OMZ formation at that time. Biogenic silica accumulation intensified between ~12.5 and ~11 Ma. The δ15N values (>6‰) provide evidence for the onset of at least intermittent denitrification between ~11 and ~9.5 Ma during the apex of the global “carbonate crash.” Our data demonstrate that upwelling and OMZ intensity in the Arabian Sea were linked to the reorganization of the Indian Ocean circulation system and South Asian Monsoon during the Miocene. The initiation of these systems occurred once the regional tectonic configuration (i.e., the uplift of the Tibetan Plateau ~25 Ma and the closure of the Tethyan seaway ~20 Ma) was in place. The subsequent development of monsoonal upwelling after 14 Ma responded to latitudinal shifts in climatic belts following the progressive Miocene glaciation of Antarctica.

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“…Studies on sediment cores in the Arabian Sea have shown that the upwelling was increased during glacial periods (Singh et al ., ), but this point is contentious. Ivanova () reported the opposite effect, an intensification of upwelling during interglacial stages, based on the palaeo‐record of foraminifera.…”

Section: Introductionmentioning

confidence: 99%

On the origin of endemic species in the Red Sea

DiBattista

Choat

Gaither

et al. 2015

Journal of Biogeography

153

178

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Aim The geological and palaeo-climatic forces that produced the unique biodiversity in the Red Sea are a subject of vigorous debate. Here, we review evidence for and against the hypotheses that: (1) Red Sea fauna was extirpated during glacial cycles of the Pleistocene and (2) coral reef fauna found refuge within or just outside the Red Sea during low sea level stands when conditions were inhospitable.Location Red Sea and Western Indian Ocean.Methods We review the literature on palaeontological, geological, biological and genetic evidence that allow us to explore competing hypotheses on the origins and maintenance of shallow-water reef fauna in the Red Sea.

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The Global Thermohaline Paleocirculation

Cited by 25 publications

References 463 publications

Quantifying dispersal from hydrothermal vent fields in the western Pacific Ocean

Quantifying dispersal from hydrothermal vent fields in the western Pacific Ocean

Monsoons, Upwelling, and the Deoxygenation of the Northwestern Indian Ocean in Response to Middle to Late Miocene Global Climatic Shifts

On the origin of endemic species in the Red Sea

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