Data and patterns-so much of what we do in science reduces to that x versus y plot. Sometimes, it’s predicted and observed longitude and latitude (for example, reconstructed magnetic anomalies across a spreading center). When it comes to hotspot traces, it’s age versus distance (but there’s more to it than that). Despite what we may have learned in junior-year geostatistics, the central-limit theorem doesn’t always apply. Yes, experimental dates (or model ages, to the purists) can demonstrate a Gaussian distribution, but there’s more to the tectonic meaning of an age than what emerges from the laboratory. When the 43-Ma age for the Hawaiian-Emperor bend was first pronounced, I had misgivings about its tectonic interpretation, especially since there were no obvious manifestations of tectonic changes of that age elsewhere in the Pacific. A few others shared my doubts (published before and after the 1981 paper I wrote with David Handschumacher, and a 1982 paper), but most discussions of the hotspot traces of the Pacific continued to cite the 43-Ma age almost to the present day.
Weitere Kapitel dieses Buchs durch Wischen aufrufen
- Hotspot Trace Patterns
Rex H. Pilger
- Springer Berlin Heidelberg
- Chapter 6