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上扬子晚古生代海相地层锶同位素曲线的LOWESS拟合
引用本文:黄喻,黄思静.上扬子晚古生代海相地层锶同位素曲线的LOWESS拟合[J].矿物岩石,2009,29(1).
作者姓名:黄喻  黄思静
作者单位:1. 成都理工大学信息管理学院,四川,成都,610059
2. 成都理工大学油气藏地质及开发工程国家重点实验室、成都理工大学
摘    要:目前仍难以有一种具体的函数关系来描述随时问或随地层厚度变化的地质数据,L0wESS方法被证明是拟合这类数据的较为有效的方法.采用LOWESS方法对我国上扬子地区晚古生代98个海相碳酸盐的锶同位素数据进行科学的拟合,使拟舍得出的曲线具有更好的全球可对比性,从而提高我国锶同位素地层学的研究水平,并使之与相应的国际研究接轨.同时,还从数学角度讨论参数回归和非参数回归的区别,并对影响拟合结果的两个参数和误差范围进行讨论.

关 键 词:LOWESS拟舍  地质数据  锶同位素  上扬子  晚古生代

LOWESS FIT OF STRONTIUM ISOTOPE STRATIGRAPHY FOR THE MARINE FACIES STRATA IN THE UPPER YANGTZE PLATFORM
HUANG Yu,HUANG Si-jing.LOWESS FIT OF STRONTIUM ISOTOPE STRATIGRAPHY FOR THE MARINE FACIES STRATA IN THE UPPER YANGTZE PLATFORM[J].Journal of Mineralogy and Petrology,2009,29(1).
Authors:HUANG Yu  HUANG Si-jing
Institution:HUANG Yu1,HUANG Si-jing21.College of Information Management,Chengdu University of Technology,Chengdu 610059,China,2.State Key Laboratory of Oil , Gas Reservoir Geology , Exploitation,Institute of Sedimentary Geology
Abstract:At present,it is difficult to find a specific function to describe the variation of geological data with time and stratigraphic thickness.However,LOWESS method proved to be such an effective method in fitting these data.Based on the mathematical method,98 data of marine strontium isotope data from the Upper Yangtze platform carbonate in China were selected for the LOWESS fitting.The fitting curves obtained can be compared with the global date of 87Sr/86Sr-age database and can be used to demarcate the strati...
Keywords:LOWESS fit  geological data  strontium isotope  Upper Yangtze  Late Paleozoic  
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