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Upper Cretaceous |
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Upper Cretaceous [′əp·ər kri′tā·shəs] (geology) The late epoch of the Cretaceous period of geologic time, beginning about 90 million years ago. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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| La Planada property is composed of Dagua Group Upper Cretaceous quartzites and siliceous siltstones intruded by a granodiorite plug. Earlier in the drilling of the Bina-Bawi 1, oil was recovered from the drill string during a fishing operation from intervals in the Upper Cretaceous at the depths of 550 to 750 meters. The primary zone of interest in both the Heatherwood and Hudson Hills prospects is the Upper Cretaceous Navarro sandstone formation, a shallow oil-bearing sand ranging in depth from 2,800 to 4,000 ft. |
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