Nd isotopes

2005 ◽  
pp. 1-20
Author(s):  
S. I. Sukhoruchkin ◽  
Z. N. Soroko ◽  
V. V. Deriglazov
Keyword(s):  
Nd Isotopes

Nd isotopes and the origin of 1.9-1.7 Ga Penokean continental crust of the Lake Superior region

1989 ◽  
Vol 101 (3) ◽  
pp. 333-338 ◽  
Author(s):  
KARIN M. BAROVICH ◽  
P. JONATHAN PATCHETT ◽  
ZELL E. PETERMAN ◽  
PAUL K. SIMS
Keyword(s):  
Continental Crust ◽  
Lake Superior ◽  
Nd Isotopes

CHANGES IN INTERMEDIATE WATER SOURCES DURING THE EARLY MAASTRICHTIAN COOLING EVENT: EVIDENCE FROM ND-ISOTOPES AND FORAMINIFERA ASSEMBLAGES

2016 ◽  
Author(s):  
Masoud Asgharian Rostami ◽  
◽  
Ellen E. Martin ◽  
Kenneth G. MacLeod ◽  
Shannon Haynes
Keyword(s):  
Water Sources ◽  
Intermediate Water ◽  
Nd Isotopes

TACONIC WEATHERING AND ORDOVICIAN COOLING: TESTING THE LINK USING PAIRED SR AND ND ISOTOPES, ANTELOPE VALLEY, CENTRAL NV

2018 ◽  
Author(s):  
Christopher T. Conwell ◽  
◽  
Matthew R. Saltzman ◽  
Elizabeth M. Griffith
Keyword(s):  
Nd Isotopes ◽  
Sr And Nd Isotopes

Collective properties of neutron-deficient Nd isotopes: Lifetime measurements of the yrast states in Nd136

2021 ◽  
Vol 103 (4) ◽  
Author(s):  
A. Turturică ◽  
C. Costache ◽  
P. Petkov ◽  
J.-P. Delaroche ◽  
M. Girod ◽  
...  
Keyword(s):  
Nd Isotopes ◽  
Lifetime Measurements

scholarly journals Extreme isotopic heterogeneity in Samoan clinopyroxenes constrains sediment recycling

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Jenna V. Adams ◽  
Matthew G. Jackson ◽  
Frank J. Spera ◽  
Allison A. Price ◽  
Benjamin L. Byerly ◽  
...  
Keyword(s):  
Mantle Source ◽  
Magma Mixing ◽  
Major And Trace Elements ◽  
Mantle Heterogeneity ◽  
Isotopic Data ◽  
Nd Isotopes ◽  
Isotopic Heterogeneity ◽  
Total Variability ◽  
High Silica ◽  
Insight Into

AbstractLavas erupted at hotspot volcanoes provide evidence of mantle heterogeneity. Samoan Island lavas with high 87Sr/86Sr (>0.706) typify a mantle source incorporating ancient subducted sediments. To further characterize this source, we target a single high 87Sr/86Sr lava from Savai’i Island, Samoa for detailed analyses of 87Sr/86Sr and 143Nd/144Nd isotopes and major and trace elements on individual magmatic clinopyroxenes. We show the clinopyroxenes exhibit a remarkable range of 87Sr/86Sr—including the highest observed in an oceanic hotspot lava—encompassing ~30% of the oceanic mantle’s total variability. These new isotopic data, data from other Samoan lavas, and magma mixing calculations are consistent with clinopyroxene 87Sr/86Sr variability resulting from magma mixing between a high silica, high 87Sr/86Sr (up to 0.7316) magma, and a low silica, low 87Sr/86Sr magma. Results provide insight into the composition of magmas derived from a sediment-infiltrated mantle source and document the fate of sediment recycled into Earth’s mantle.

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