Reconstructions of the South Pacific (Paleoceanographic Mapping Project Progress Report No. 15-1186)

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Date

1986

Authors

Mayes, Catherine L.

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Publisher

Institute for Geophysics

Abstract

Description

We present reconstructions of the Pacific region south of the equator for the following times: Anom. 5 (10.6 Ma), Anom. 7 (26.0 Ma), Anom. 21 (50.3 Ma ), Anom. 25 (59.2 Ma), and 100 Ma (CQZ). The reconstructions with interpreted isochrons are based upon magnetic picks, magnetic anomaly trends, and fracture zone trends from the following sources: Christoffel and Falconer (1972), Herron (1972), Molnar, et al. (1975), Handschumacher (1976), Weissel, et al., (1977), Mammerickx, et al. (1980), Handschumacher, et al. (1981), Cande, et al. (1982), Klitgord and Mammerickx (1983), Cande and Leslie (1986), and Molnar (1986, pers. comm.). For all of our reconstructions, we hold the Pacific plate fixed in present-day coordinates. Using interactive graphics, we determined new poles of rotation for the Pacific-Antarctic, Pacific-Cocos, Pacific-Nazca and Nazca-Antarctic spreading systems.

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Citation

Mayes, Catherine L. "Reconstructions of the South Pacific (Paleoceanographic Mapping Project Progress Report No. 15-1186)." University of Texas Institute for Geophysics Technical Report Number 62 (November 1986), 10p.