Timing of Volcanism Along Two Adjacent Ridge Segments of the East Pacific Rise (15 degrees - 17 degrees N)
Timing of Volcanism Along Two Adjacent Ridge Segments of the East Pacific Rise (15 degrees - 17 degrees N)
批准号:
0002563
负责人:
Marie-Helene Cormier
金额:
$12.04万
依托单位:
依托单位国家:
美国
项目类别:
Standard Grant
财政年份:
2000
资助国家:
美国
项目状态:
已结题
起止时间:
2000-12-01 至 2004-11-30
中文摘要
支持者将对来自北纬15至16度东太平洋海隆的大约10个挖泥船和大约40个蜡芯的玻璃质洋中脊玄武岩材料的多个样本进行Thellier古强度测定。 明确的古强度值可以从玻璃质玄武岩样品中可靠地获得,并用于区分至少在0到2,000年的时间间隔内的年龄。 还将用放射性同位素方法测定选定样品的年代。
英文摘要
The proponents will make Thellier paleointensity determinations on multiple samples of glassy mid-ocean ridge basalt material from about ten dredges and about 40 wax cores from the East Pacific Rise at 15 to 16 degrees North. Well-defined paleointensit values can be reliably obtained from glassy basalt samples and used to differentiate ages at least in the 0 to 2,000 year interval. Selected samples will also be dated by radioisotopic methods.
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