beryllium 10 pelagic

  • Beryllium-10 data from redeposited late miocene

    1987-11-2 · Conclusion Beryllium-10 determination of relative ages of pelagic sediments, which have been strongly affected by slump- ing and sliding, appears to give good results for the complete sequence, covering 2 to 3 million years.

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  • BERYLLIUM-10 DATA FROM REDEPOSITED LATE

    2014-4-28 · beryllium-10 data from redeposited late miocene pelagic sediments (east java, indonesia) p.l. de boer i), c.g. langereis 2), j.d.a. zijderveld 2), a.j.t. romein 3), c. porter 3), a . f . m. de jong 4), c. alderliesten 4, and k. van der borg 4, 1) 2) 3) 4)

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  • Beryllium-10 data from redeposited late miocene

    1987-11-1 · Beryllium-10 data from redeposited late miocene pelagic sediments (East Java, Indonesia)

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  • Beryllium 10 in hydrothermal vent deposits from the

    The 10 Be concentrations measured for the mid‐ocean basalts are of the order of 0.3 × 10 atoms/g and reach 3800 × 10 6 atoms/g for the pelagic deep‐sea sediments collected near

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  • The global beryllium 10 cycle McHargue 1991

    Beryllium 10 (t1/2 = 1.5 × 10 6 years) is mainly produced in the atmosphere by spallation of oxygen and nitrogen induced by secondary neutrons formed by cosmic ray interactions with the atmosphere, but some is produced in situ on the surface of the Earth. Deposition of 10 Be onto the surface of the Earth depends primarily on precipitation.

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  • Beryllium 10 in hydrothermal vent deposits from the

    The /sup 10/Be concentrations measured for the mid-ocean basalts are of the order of 0.3 x 10/sup 6/ atoms/g and reach 3800 x 10/sup 6/ atoms/g for the pelagic deep-sea sediments collected near the EPR 21 /sup 0/N. Based on their /sup 10/Be concentrations, we can clearly distinguish two categories of sulfides: sulfides containing low /sup 10/Be concentration (<10 /sup 6/ atoms/g) sitting directly on the mid-ocean basalt (EPR of Juan de Fuca), and sulfides with high /sup 10

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  • Beryllium-10 in deep-sea sediments: A tracer for the

    Beryllium-10 in deep-sea sediments: A tracer for the Earth's magnetic field intensity during the last 200,000 years The pelagic clayey-carbonate muds continuously deposited between marine

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  • The global beryllium 10 cycle, Reviews of Geophysics

    1991-5-1 · Beryllium 10 (t1/2 = 1.5 × 106 years) is mainly produced in the atmosphere by spallation of oxygen and nitrogen induced by secondary neutrons formed by cosmic ray interactions with the atmosphere, but some is produced in situ on the surface of the Earth. Deposition of 10Be onto the surface of the Earth depends primarily on precipitation.

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  • 10 Be evidence for the Matuyama–Brunhes

    2006-11-2 · The 10 Be/ 9 Be ratios were measured at P. & Tauxe, L. A precursor to the Matuyama/Brunhes transition-field instability as recorded in pelagic sediments. F. et al. Beryllium 10 in the

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  • TECHNICAL DATA SHEET PELAGIC 100 Subsea Control Fluid

    2017-6-29 · PELAGIC 100 Subsea Control Fluid is a high performance, high temperature water based hydraulic fluid for use in open and closed loop Subsea Production control systems. PELAGIC 100 has an operational temperature range from -25°C to 170°C (-13°F to 338°F). It is stable up to 190°C (374°F) & remains mobile until it freezes at <-30°C (<-22°F).

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  • Beryllium-10 in deep-sea sediments: A tracer for the

    Beryllium-10 in deep-sea sediments: A tracer for the Earth's magnetic field intensity during the last 200,000 years The pelagic clayey-carbonate muds continuously deposited between marine

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  • Sensitivity and response of beryllium-10 in marine

    The response and the sensitivity of the marine beryllium-10 flux to abrupt production changes (e.g., caused by a geomagnetic event) are investigated by using a simple box model. The pelagic

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  • (PDF) Beryllium-10 in Australasian tektites:

    Beryllium-10 in Australasian tektites: Constraints on the location of the source crater. Download. Samples are described as marly pelagic fine-grained mixed carbonate/clayey sediments and as coming from heights ranging from 0 to 320 m. Those authors remarked that, "On a smaller scale the 10 Be data show strong deviations, up to a factor of

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  • 10 Be evidence for the Matuyama–Brunhes

    2006-11-2 · The 10 Be/ 9 Be ratios were measured at P. & Tauxe, L. A precursor to the Matuyama/Brunhes transition-field instability as recorded in pelagic sediments. F. et al. Beryllium 10 in the

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  • Thesaurus Terms GeoScienceWorld

    beryllium Be-10 (1) strontium Sr-87/Sr-86 (2) lead pelagic sedimentation. Results shown limited to content with bounding coordinates. View Results on Map Return to Search Results. Save search. Follow your search

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  • TECHNICAL DATA SHEET PELAGIC 100 Subsea Control Fluid

    2017-6-29 · PELAGIC 100 has an operational temperature range from -25°C to 170°C (-13°F to 338°F). It is stable up to 190°C (374°F) & remains mobile until it freezes at <-30°C (<-22°F). PELAGIC 100 Subsea Control Fluid offers excellent technical and environmental performance. PELAGIC 100 Subsea Control Fluid contains a fluorescent leak tracer dye.

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  • Nature Geoscience

    2014-1-3 · beryllium-10 in palaeolake shoreline deposits preserved in Sudan, eastern Sahara. Beryllium-10 accumulates in rocks when they are hit by cosmic radiation, so its abundance can be used to calculate the amount of time rocks or sediments have been

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  • The potential of Th for detection of ocean acidification

    2020-7-24 · Pa), as well as beryllium (10. Be). As the rain ratio describes the average amount of carbon atoms incorporated into CaCO. 3. shell material 30 relative to the amount of carbon atoms incorporated into organic matter by plankton, a reduction in calcification would lead to a rain ratio decrease. Indeed, especially for . 230

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  • Oceanic ResidenceTimes ofDissolved Beryllium

    et al. (15), andHydes(16) as 3.9 x 10-10 and 5 x 10-7 g liter1, respectively. If these concentrations are multiplied by 10Be (or 26A1) specific activities, weesti-mate the'0Be and 26A1 concentra-tions in seawaterto be2 x10-6 and2 10-8 dpm fiter-1, respectively. The resi-dence time of 10Be is then calculated from Eq. 1 as T=4I2 X 10-6 l-x 380

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  • Steven Desch — Arizona State University

    Best Practices for Determination of Initial 10 Be/ 9 Be in Early Solar System Materials by Secondary Ion Mass Spectrometry Dunham, E. T., Wadhwa, Beryllium-10. 1 Scopus citations. Detectability of life using oxygen on pelagic planets and water worlds Glaser, D. M.,

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