Strontium isotope stratigraphy of Kita-daito-jima Atoll, North Philippine Sea: implications for Neogene sea-level change and tectonic history

Ohde, Shigeru; Elderfield, H.

doi:10.1016/0012-821x(92)90125-f

Cited by 77 publications

(40 citation statements)

References 31 publications

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“…Only if fluids were to be transported over considerable stratigraphic distance across unconformities might the stratigraphic value of the Srisotope values be compromised. Data from Anewetak and Kita-daito-jima atoll in the Philippine Sea show that the Neogene Sr-isotope curve, in terms of shape and absolute values, compares extremely closely with that generated from deep-sea pelagic oozes and chalks (Ludwig and others, 1988;Saller and Koepnick, 1990;Quinn, Lohman, and Halliday, 1991;Ohde and Elderfield, 1992).…”

Section: The Role Of Meteoric-water Diagenesismentioning

confidence: 92%

Stratigraphy, paleoceanography, and evolution of Cretaceous Pacific guyots; relics from a greenhouse Earth

Jenkyns¹

1999

American Journal of Science

193

141

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ABSTRACT. Many guyots in the north Pacific are built of drowned Cretaceous shallow-water carbonates that rest on edifice basalt. Dating of these limestones, using strontium-and carbon-isotope stratigraphy, illustrates a number of events in the evolution of these carbonate platforms: local deposition of marine black shales during the early Aptian oceanic anoxic event; synchronous development of oolitic deposits during the Aptian; and drowning at different times during the Cretaceous (and Tertiary).Dating the youngest levels of these platform carbonate shows that the shallow-water systems drowned sequentially in the order in which plate-tectonic movement transported them into low latitudes south of the Equator (paleolatitude ϳ0°-10°south). The chemistry of peri-equatorial waters, rich in upwelled nutrients and carbon dioxide, may have been a contributory factor to the suppression of carbonate precipitation on these platforms. However, oceanic anoxic events, thought to reflect high nutrient availability and increased productivity of planktonic organic-walled and siliceous microfossils, did not occasion platform drowning. Neither is there any evidence that relative sealevel changes were the primary cause of platform drowning, which is consistent with the established resilience of shallow-water carbonate systems when influenced by such phenomena.Comparisons with paleotemperature data show that platform drowning took place closer to the Equator during cooler intervals, such as the early Albian and Maastrichtian, and farther south of the Equator during warmer periods such as Albian-Cenomanian boundary time and the mid-Eocene. Initiation of one carbonate platform relatively close to the Equator, at paleolatitudes more northerly than those where others drowned, took place during the cool early mid-Aptian. These correlations are in accord with an interpretation that excess warmth in shallow peri-equatorial waters proved inimical for many carbonate-secreting organisms living on the platforms, allowing subsidence or eustatic sealevel rise to outpace sedimentation and guyots to form. A parallel may be drawn with the recent phenomenon of coral and foraminiferal bleaching, whereby photosynthetic symbionts succumb to prolonged high temperatures (G30°C) and the host organism dies. The fact that most Cretaceous guyots reside in the north Pacific may not be solely related to the age-distribution pattern of ocean floor but to their having run the gauntlet of a difficult and dangerous passage across the Equator. North Pacific guyots are relics from the Cretaceous (and Eocene) ''greenhouse'' Earth.

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Section: The Role Of Meteoric-water Diagenesismentioning

confidence: 92%

Stratigraphy, paleoceanography, and evolution of Cretaceous Pacific guyots; relics from a greenhouse Earth

Jenkyns¹

1999

American Journal of Science

193

141

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“…The contemporaneous seawater curves were constructed for each site using the age equations derived from a reference seawater curve (Ohde and Elderfield, 1992). At all sites, the pore waters are distinctly more radiogenic than contemporaneous seawater.…”

Section: Fluid Flow Within Sedimentsmentioning

confidence: 99%

Strontium Isotopes in Pore Waters of East Equatorial Pacific Sediments: Indicators of Seawater Advection through Oceanic Crust and Sediments

Oyun¹,

Elderfield²,

Klinkhammer³

1995

Proceedings of the Ocean Drilling Program, 138 Scientific Results

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Pore-water samples from the equatorial sedimentary bulge area show reversals in depth profiles of 87 Sr/ 86 Sr ratios at the sedimentfàasement interface. Results of this work support inferences made from previous pore-water data (from DSDP drilling in the area) that large-scale horizontal advection of seawater has occurred through the basement underlying the thick sedimentary sequence in this region. The area of apparent advection includes the eastern part of the equatorial high-productivity zone and part of the Guatemala Basin. We attempted to find links between the observed near-basement reversals in pore-water chemistry and sedimentary thickness, age, and topography of the area. Most of the sites that show horizontal advection have disturbed basement topography or outcrops within 10 to 20 km, suggesting that the cooling effects of outcrops may extend for at least 20 km horizontally. Heat-flow data from the area were compared to determine whether sites showing near-bottom chemistry reversals were consistent with areas of low conductive heat flow. This was generally true for the area of the sedimentary bulge and Guatemala Basin. Not enough pore-water data from the Nazca Plate were available to establish any reliable systematics. Because the high-productivity area is well-sealed from hydrothermal circulation, the missing heat must be lost by horizontal advective heat transport. From profiles of strontium isotopes and other elements that show departure from seawater values with increasing depth in the sediments, but return to seawater values near the basement, it appears that water flows relatively freely through much of the oceanic crust, even when sealed by considerable sedimentary cover.

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“…Sr , Elderfield, 1986;McArthur, 1998;, 2003 Sr 87 Sr 86 Sr ≈ 0.7035;Elderfield, 1985 Sr Raymo et al, 1988;Edmond, 1992;Rea, 1992Goddéris and François, 1995Armstrong, 1971DePaolo, 1986;Capo andDePaolo, 1990 Sr , Burke et al, 1982;Elderfield, 1986Sr Edmond, 1992Sr , , 1997, 1998 , Ohde and Elderfield, 1992 Sr Jones , 1992 Kano and Jiju, 1995 Matsuoka and Yao, 1985;Aita and Okada, 1986;Aita, 1987 Kimmeridgian Berriasian Valanginian 2 km 120 Shiraishi andKano, 2004 Kano, 1988;Kano and Jiju, 1995 T i t h o n i a n B e r r i a s i a n T i t h o n i a n …”

mentioning

confidence: 98%

Strontium isotopic age of the Torinosu Limestone in Niyodo Village, Kochi Prefecture, SW Japan.

Shiraishi¹,

Hayasaka²,

Takahashi³

et al. 2005

Jour. Geol. Soc. Japan

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Strontium isotopic ratio provides high-resolution ages of the limestone of Yatsuji Formation Torinosu Group in Niyodo Village Kochi Prefecture , on the basis of considering diagenetic effects. Results of cathodoluminescence and trace elements analysis revealed that brachiopod shell is retaining the original marine strontium isotopic value. Stromatoporoids and a calcified sponge Chatetopsis sp. tend to record higher values than the brachiopod shells collected from the same horizon. Their differences are attain to . , and which corresponds to . m.y. during late Jurassic to early Cretaceous periods. Therefore, we concluded that stromatoporoids and Chatetopsis sp. are not suitable for the precise age determination. Obtained strontium isotope data of brachiopod shells are converted to depositional age by fitting to recently proposed strontium isotopic curve LOWESS Look-up

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Strontium isotope stratigraphy of Kita-daito-jima Atoll, North Philippine Sea: implications for Neogene sea-level change and tectonic history

Cited by 77 publications

References 31 publications

Stratigraphy, paleoceanography, and evolution of Cretaceous Pacific guyots; relics from a greenhouse Earth

Stratigraphy, paleoceanography, and evolution of Cretaceous Pacific guyots; relics from a greenhouse Earth

Strontium Isotopes in Pore Waters of East Equatorial Pacific Sediments: Indicators of Seawater Advection through Oceanic Crust and Sediments

Strontium isotopic age of the Torinosu Limestone in Niyodo Village, Kochi Prefecture, SW Japan.

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