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Tree-ring cellulose d18O variability in pine and oak and its potential to reconstruct precipitation and relative humidity in central Japan
tree-ring cellulose d18O pine oak precipitation relative humidity central Japan
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2017/4/10
Oxygen isotope ratios (d18O) of tree-ring cellulose in pine (Pinus densiflora) and oak (Quercus serrate and Quercus
variabilis) growing in central Japan from 1970 to 2011 share a common inter-annual ...
Variability of theNorthAtlantic thermohaline circulation during the last interglacial period
NorthAtlantic thermohaline circulation last interglacial period
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2014/4/9
Studies of natural climate variability are essential for evaluating its future evolution. Greenland ice cores suggest that the modern warmperiod (the Holocene) has been relatively stable for the past ...
Testing seawater Sr isotopic variability on a glacial-interglacial timescale: An application of latest high-precision thermal ionization mass spectrometry
TIMS Sr isotopes seawater glacial-interglacial cycle
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2017/8/9
Stability in seawater 87Sr/86Sr ratios over a glacial-interglacial timescale has gained the consensus, yet inter-site inconsistency exists in the previous data employed for validation of this issue. T...
Spatial variability of soil selenium as affected by geologic and pedogenic processes and its effect on ecosystem and human health
elenium spatial variability agricultural ecosystem human health
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2017/8/9
Selenium (Se) deficiency and excess in agricultural ecosystems are related to many human health problems through the food chain and depend on the spatial variability and bioavailability of Se in soils...
Variability of apatite fission-track annealing kinetics: II. Crystallographic orientation effects
apatite fission-track annealing Crystallographic orientation effects method
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2012/3/31
A method is presented that permits the length of any horizontal, confined fission-track inclined at a
specified angle to the crystallographic c axis in apatite to be converted to an equivalent track ...
Variability of apatite fission-track annealing kinetics: III. Extrapolation to geological time scales
apatite fission-track annealing kinetics Extrapolation geological time scales
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2012/3/31
A new model for examining fission-track data from natural specimens has been developed on the
basis of new laboratory data describing fission-track annealing in a wide variety of apatites and the
em...
Variability of apatite fission-track annealing kinetics: I. Experimental results
apatite fission-track annealing kinetics I. Experimental results initial lengths
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2012/3/31
Annealing rates for fission tracks in apatite vary markedly as a complex function of composition,
based on an experimental study of 15 well-characterized, compositionally diverse apatites. Extensive
...
Sulfur isotope variability in biogenic pyrite: Reflections of heterogeneous bacterial colonization?
Sulfur isotope variability biogenic pyrite Reflections colonization
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2012/4/1
The top 20 cm of sediments at active cold seeps in Monterey Bay, coastal California,contain framboidal pyrite that occurs as infillings and pseudomorphs of the chambers of the tests of foraminifera an...
Interpretation of the Variability of Selectivity Coefficients for Exchange Between Ions of Unequal Charge on Smectites
Cation exchange Cation selectivity Entropy Mass action Selectivity coefficient Smectite
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2012/2/9
Ion-exchange experiments in expanding clay minerals conducted over a wide range of surface ionic compositions and ionic strength produce variable mass-action selectivity coefficients. When the exchang...
Variability in Exchange Ion Position in Smectite: Dependence on Interlayer Solvent
Variability Exchange Ion Position Smectite Interlayer Solvent
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2012/2/15
Full and reduced charge smectite saturated with Na(I), Ca(II), Cu(II), or tetralkylammonium ions were swollen by a series of solvents of various bulk physical properties. In the full charge smectites,...