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| The geology of Ukhaa Tolgod (Djadokhta Formation, Upper Cretaceous, Nemegt Basin, Mongolia) ; American Museum novitates, no. 3616 |
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| Title: | The geology of Ukhaa Tolgod (Djadokhta Formation, Upper Cretaceous, Nemegt Basin, Mongolia) ; American Museum novitates, no. 3616 |
| Authors: | Dingus, Lowell. Loope, David B. Dashzeveg, Demberelyin. Swisher, Carl Celso. Minjin, Chuluun. Novacek, Michael J. Norell, Mark. |
| Issue Date: | 2008 |
| Publisher: | New York, NY : American Museum of Natural History |
| Series/Report no.: | American Museum novitates, no. 3616 |
| Abstract: | The lithostratigrahy and sedimentology of the fossiliferous Upper Cretaceous strata exposed in the Gobi Desert of Mongolia at Ukhaa Tolgod are described and mapped on aerial photos. Topographic features are also mapped by plane table and alidade. Five lithologic and sedimentologic facies are described: E-1, distinctly cross-stratified sandstone with fine structure, interpreted to represent eolian dune deposits; E-2, vaguely bedded sandstone with cross-stratified concretionary sheets, interpreted to represent eolian dune deposits modified by diagenetic formation of slope-parallel concretionary sheets of pedogenic calcite; S, structureless sandstone lacking concretions or cross-strata, interpreted to represent sandslide deposits generated by mass wasting along the lee slopes; C, conglomerate interpreted to represent basin-margin conglomerates washed into the dune field from adjacent topographic highs; and M, mudstone and siltstone interpreted to represent interdune deposition in ephemera... |
| Description: | 40 p. : ill. (some col.), maps ; 26 cm. Includes bibliographical references (p. 35-40). |
| URI: | http://hdl.handle.net/2246/5916 |
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