Metallic mineral deposits |
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| Authors: | G Hall M Solomon |
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| Institution: | Geological Survey of South Australia, Department of Mines , Adelaide, South Australia |
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| Abstract: | Except for the fringing reef, the limestones of Christmas Island in the Indian Ocean are of Late Eocene (Tertiary “b") and Early Miocene (Tertiary “e” to “f") age. The Upper Eocene limestone is an algal limestone containing Discocyclina, Nummulites, and Heterostegina. The Lower Miocene limestone is an algal limestone containing in its lower part species of Lepidocyclina (Eulepidina) followed by Miogypsinoides dehaarti. Miogypsinoides dehaarti extends into the zone of Flosculinella bontangensis. No rocks younger than Burdigalian were identified other than on the fringing reef which contains an assemblage of Pliocene‐Pleistocene Foraminifera. |
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| Keywords: | earthquakes faulting intraplate neotectonics Quaternary faults seismicity southern Australia stress |
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