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Show ClKCiriHATI GEOLOIGST SEES UTAH PETROLEUM SOURCE tractors should drill for oil by means of the fossil content of rocks penetrated by the drill. Obviously it becomes necessary for the geologist to know precisely where one period of geologic history his-tory leaves off and another begins. The newly-identified formation in Utah acts as such a divider of dates in the geologic calendar, just as a simliar Montana formation marks the base of a geologic period in this region. Holand's report in the American Association of Petroleum Geologists bulletin for the first time represents repre-sents the rocks in the Utah region re-gion graphically by means of detailed de-tailed diagrams as well as by written writ-ten descriptions. Holland is currently studying fossils representing the marine life in another sea of the same age in western New York and Pennsylvania. Pennsyl-vania. Correlations between these widely separated eastern and western west-ern United States faunas are expected ex-pected to aid in dividing the geologic geo-logic timetable and in understanding understand-ing the geographic distribution of land and water 280,000,000 years ago. CINCINNATI, OHIO Through painstaking work of a young University Uni-versity of Cincinnati geologist, the American oil industry has been given a lead on what may prove to be new sources of petroleum in the Utah mountains. F. D. Holland Jr., curator of the local university's museum, reporting re-porting his work in the American Association of Petroleum Geologists bulletin, predicts geological formations forma-tions which he has identified in northeastern Utah should be an oil producer. For several years Holland has been studying ancient oil-bearing beds in Utah, Idaho and Montana. ' In northeastern Utah, near Logan, Lo-gan, about 80 miles from Salt Lake City sheer, massive limestone cliffs rise 1,000 feet above rocky canyon floors. He has now identified the limestone in Utah as being of the same age as the widespread Madison Madi-son limestone which is producing oil in other northern Rocky Mountain states. Rocks of the region studied py Holland, some 280,000,000 years old, were deposited in a vast sea teeming teem-ing with shell life. Comparison of the various kinds of fossils, some microscopic in size, in the rocks of the Utah section with fossils of the mountainous Montana section yielded evidence which enabled the Cincinnati expert ex-pert to name a new series of beds in northeastern Utah. Such fossil comparisons are useful use-ful in keeping the geologist's "date book" straight. Once the sequence of dates and ages of the strata are correct, the geologist can predict accurately the depth to which con- |