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Published by the American Geophysical Union as part of the Field Trip Guidebooks Series, Volume 115/315.
The scheduling of the International Geological Congress field trips T-115 and T-315 through the Grand Canyon during the summer of 1989 has provided an unparalleled opportunity not only to prepare detailed river trip logs describing geologic and hydraulic features that may be observed from Lees Ferry to Lake Mead, but also to compile a modern summary of Grand Canyon geology. To persons unfamiliar with details of the geology, it is commonly supposed that no major problems exist because of the superb and extensive exposures. One objective of this volume is to identify and place in perspective some of the salient problems that remain
Of particular interest is an interpretation that the Late Proterozoic Chuar Group accumulated mainly in a lacustrine rather than a marine environment of deposition, and that carbonaceous strata of the Chuar Group may have served as a potential source of Precambrian oil. A preliminary, stratigraphically controlled, apparent polar wandering path developed from Proterozoic and Paleozoic rocks of the Grand Canyon and environs is shown in Chapter 12; the polar path and polarity zonation lead to correlations with poles reported from Proterozoic rocks elsewhere in North America, and the character of the polar path may reflect the nature of movement of the North American plate with respect to episodes of tectonism.
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Book Description AMERICAN GEOPHYSICAL UNION, * * * * *, 1989. Soft cover. Condition: Near Fine. AMERICAN GEOPHYSICAL UNION (illustrator). B00K: Near Fine/ $478.95 0875906427 GEOLOGY of GRAND CANYON, NORTHERN ARIZONA with COLORADO RIVER GUIDES = LEES FERRY to PIERCE FERRY, ARIZONA; 28tH International Geological Congress. Field Trip T115. June 26-July 5, 1989 & June, 27-July 6, 1989; Field Trip T315. July 20-29, 1989, July 21-30, 1989. FIELD TRIP GUIDEBOOK. = ELSTON, Donald P.; BILLINGSLEY, George F.; YOUNG, Richard A.; HAMBLIN, W. K.; BARNES, Charles; REYNOLDS, Mitchell; HUNTOON, Peter; WENRICH, Karen; STEVENS, Larry; POOLE, F. G.; KIEFFER, Susan W.; MEAD, James; HENDRICKS, John. AMERICAN GEOPHYSICAL UNION 1989 UnStated Edition Tall Wide S/c. Light Sun Browning On An Off~White Spine With Title In Black Letters, Soft Cover B00K: Near Fine/ Displayable Condition, Shelf, Edge And Corner Wear. 238 Numbered Pages Appear To Be Lightly Viewed, Clean And Tight To Spine, Printed On Off~White Paper, In Fine/ Condition. Was Dropped On Top Right Corner, Creating Spreading And Small Amount Of Wrinkling. No Odors, No Other Writing, No Names, No Rippling, Not Stuck Together, No Book Plate, Not X~Library. = = Description Applies To This B00K, Only, Which Is Hard To Find, Will Be Packaged And Shipped = Carefully, To Avoid Shipping Damage And Will Make It, An Excellent Addition To Your Own Personal Library Collection, Or As A Gift For The Discriminating Reader / Collector/. = WORLD WIDE SHIPPING, AVAILABLE. Seller Inventory # 015595