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Published August 1988 | Published
Journal Article Open

The Cajon Pass Scientific Drilling Experiment: Overview of phase 1


The Cajon Pass Scientific Drilling Project is a broad, interdisciplinary experiment involving over two dozen principal scientists. Phase I of drilling, coring and downhole experimentation began Dec. 8, 1986 and ended April 2, 1987 with the hole at a depth of 2115 m, 82 m of core recovered and a wide range of downhole experiments successfully completed. In this paper we briefly outline the scientific motivation for the project and provide an overview of the scientific program. We also indicate some of the varied research areas in the earth sciences where data obtained in this experiment will provide unique and important insight into active in situ processes, regional geologic structure, and rock and fluid composition and origin.

Additional Information

© 1988 American Geophysical Union. Received: May 5, 1988; Accepted: June 27, 1988. We wish to thank the National Science Foundation for providing financial support through DOSECC, Inc. for the Cajon Pass project and the U.S. Geological Survey for providing on site core-handling facilities and personnel and financial support for USGS scientists involved in the project We owe a considerable debt to Robert Johnson, DOSECC project supervisor, for providing engineering talent and advice for the project as a whole and for many members of the science team. We wish to thank Wayne Campbell, Francis Raup, Deborah Volturno and William Linenburger of the USGS core-handling team for their help. Many of the contractors associated with this project have provided assistance and services far beyond the terms and conditions of their contracts. We wish to thank in particular Steven Pittillo, Mark Andrews and Barney Thompson of Parker Drilling Co. and Bill Anderson, Doug Milham and Rick Behl of Epoch Mud Logging Services for providing considerable assistance to the scientists involved in this project

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