Modeling seafloor-spreading rates through time

被引:29
作者
Demicco, RV [1 ]
机构
[1] SUNY Binghamton, Dept Geol Sci & Environm Studies, Binghamton, NY 13902 USA
关键词
seafloor spreading; crust production; ocean-floor evolution; global cycles; genetic algorithms;
D O I
10.1130/g20409.1
中图分类号
P5 [地质学];
学科分类号
0709 [地质学]; 081803 [地质工程];
摘要
A steady-state model of crust production and destruction for the past 180 m.y. was proposed by B. Parsons and advocated by D. Rowley. Such a model has serious implications for models of secular variations in, e.g., global sea level, global climate, and seawater chemistry. This paper presents an analysis of the steady-state model and then offers alternative extensions of that model that allow for non-steady-state production of ocean crust with time. Results suggest that the observed linear decrease in area versus age of ocean floor does not force a steady-state view of seafloor spreading.
引用
收藏
页码:485 / 488
页数:4
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