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Show Notes Pertaining to GBASH 97 Field Trip Selected Aspects of Bonneville Basin Aquatic System History Friday, September 19,1997 Objectives The field conference portion of GBASH 97 is intended to call attention to and stimulate discussion concerning factors that are of potential interest to the aquatic system history research community. Aquatic system is used here in the sense of all the features and their properties, ranging from purely biotic to purely abiotic, that may occur in or are otherwise linked to water ( atmospheric, biospheric, hydrospheric, cryospheric, or lithospheric) within the non- marine realm ( terrestrial aspects) of Earth system history ( NSF) or Earth system science ( NASA)- and within the spatial domain of the Great Basin, its subbasins, and its environs. History is used here in the sense of any change that those properties may have undergone within the temporal domain of Cenozoic, particularly late Cenozoic, time- the time- frame of proto- Great Basin and Great Basin tectonic development. As implied above, the overall objective of the field conference is to stimulate a series of research discussions, not to present a series of didactic summaries of research progress. Specific objectives include, but are not limited to, discussions of the following research issues. • Chronologies- dating methods, problems, and new approaches • Paleoenvironments- proxy methods, problems, and new approaches • Earth surface processes and paleoprocesses- evidence and interpretation • Biogeochemical ( including stable isotope) data- analysis and interpretation • Biotic and paleobiotic data- population isolates and evolution Modified Itinerary The field conference will include discussion stops at the following places. Discussion stops [ 1] through [ 8] are numbered on a sketch map of the trip ( next page). [ 1] South shore of Great Salt Lake- scenic turnout on N side of 1- 80 [ 2] Puddle Valley- shoulder of road to Lakeside [ 3] Lakeside Mountains- overlook 0.2 km west of road to Lakeside [ 4] Lakeside Cave ( lunch)- maze of dirt roads 2 km W of Lakeside ( no services) [ 5] Skull Valley- BLM site at Horseshoe Spring, 0.1 km W of Skull Valley highway [ 6] Stansbury Mountains- Neotoma midden 0.1 km N of Johnsons Pass highway [ 7] Rush Valley- Rush Lake access road 1 km SW of Stockton village [ 8] Diamond Lil's Restaurant- 1528 W North Temple, Salt Lake City Unfortunately, time constraints will prevent inclusion of two discussion stops that had been intended previously. • Cedar Valley- where during the last deep- lake cycle the local subbasin toggled hydrographically from isolation to integration to isolation, with respect to the main body of Lake Bonneville. • Utah Valley- where Utah Lake is not a remnant of Lake Bonneville, but formed only after geodynamics ( hydro- isostatic and seismotectonic) and morphodynamics |