کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9522659 | 1634961 | 2005 | 16 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
A primordial solar-neon enriched component in the source of EM-I-type ocean island basalts from the Pitcairn Seamounts, Polynesia
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
علوم زمین و سیارات
علوم زمین و سیاره ای (عمومی)
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: A primordial solar-neon enriched component in the source of EM-I-type ocean island basalts from the Pitcairn Seamounts, Polynesia A primordial solar-neon enriched component in the source of EM-I-type ocean island basalts from the Pitcairn Seamounts, Polynesia](/preview/png/9522659.png)
چکیده انگلیسی
In contrast to neon, there is no apparent correlation between helium isotope compositions and radiogenic isotopes in the Pitcairn Seamount samples. Positive correlations are observed, however, between ratios of observed 4He to nucleogenic 21Ne (21Nen) against the total helium concentrations and MgO contents, suggesting that preferential loss of mantle helium has occurred, possibly by interaction with seawater during assimilation-fractional crystallization processes. This observation provides a cautionary note for the interpretation of helium isotope results from other oceanic basalt suites.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Earth and Planetary Science Letters - Volume 236, Issues 3â4, 15 August 2005, Pages 597-612
Journal: Earth and Planetary Science Letters - Volume 236, Issues 3â4, 15 August 2005, Pages 597-612
نویسندگان
Masahiko Honda, Jon D. Woodhead,