Small Scale Depositional Sequences in a Middle Devonian     Foreland Basin
{'Code': '06030101', 'Directorate': {'Abbreviation': 'GEO', 'LongName': 'Directorate For Geosciences'}, 'Division': {'Abbreviation': 'EAR', 'LongName': 'Division Of Earth Sciences'}}
{'SignBlockName': 'John A. Maccini', 'PO_EMAI': None, 'PO_PHON': None}
Many authors have stressed the significance of small-scale                 stratigraphic cycles and discontinuity bounded sequences in                     geochronology and in understanding depositional processes.  As a                result of extensive detailed studies of event stratigraphy of the               Middle Devonian (Hamilton Group), we have recognized numerous                   small- and large-scale cyclic, bounded packages, some of which                  are widely traceable and appear to be allocyclic in nature.  We                 also postulate that: 1) an upward-shallowing motif, at least in                 larger-scale cycles, is not pervasive, rather cycles are                        subsymmetrical near basin centers, but grade marginward into                    asymmetrical shallowing-upward sequences; 2) that the bounding                  surfaces of packages may record either sea level fall or rise,                  but 3) that they represent discontinuities of considerable                      magnitude; 4) depocenters of successive cyclic sequences display                a regular westward migration that is consistent with current                    models of thrust loading in foreland basins.                                         As a test of the generality of these patterns we will                      thoroughly document the sedimentology, taphonomy, paleontology                  and regional distribution of small-scale coarsening-upward                      sequences of the Hamilton Group in central New York State, and                  their correlatives in other areas.  In particular, we will focus                on a) correlation of bounded cycles across a shelf-to-basin                     profile; b) lateral symmetry changes within cycles; c) internal                 facies anatomy of small scale cyclic packages; and d) the nature                and temporal scale of bounding surfaces.  This research will lead               to better understanding of relative sea-level fluctuations and                  depositional dynamics of a muddy foreland basin and could serve                 as a model for interpreting similar settings throughout the                     geologic record.
[{'FirstName': 'Gordon', 'LastName': 'Baird', 'PI_MID_INIT': 'C', 'PI_SUFX_NAME': None, 'PI_FULL_NAME': 'Gordon C Baird', 'EmailAddress': 'baird@oak.ait.fredonia.edu', 'NSF_ID': '000123819', 'StartDate': '02/15/1989', 'EndDate': None, 'RoleCode': 'Co-Principal Investigator'}, {'FirstName': 'Carlton', 'LastName': 'Brett', 'PI_MID_INIT': 'E', 'PI_SUFX_NAME': None, 'PI_FULL_NAME': 'Carlton E Brett', 'EmailAddress': 'carlton.brett@uc.edu', 'NSF_ID': '000185890', 'StartDate': '02/15/1989', 'EndDate': None, 'RoleCode': 'Principal Investigator'}]
{'Name': 'University of Rochester', 'CityName': 'ROCHESTER', 'ZipCode': '146113847', 'PhoneNumber': '5852754031', 'StreetAddress': '910 GENESEE ST', 'StreetAddress2': 'STE 200', 'CountryName': 'United States', 'StateName': 'New York', 'StateCode': 'NY', 'CONGRESSDISTRICT': '25', 'CONGRESS_DISTRICT_ORG': 'NY25', 'ORG_UEI_NUM': 'F27KDXZMF9Y8', 'ORG_LGL_BUS_NAME': 'UNIVERSITY OF ROCHESTER', 'ORG_PRNT_UEI_NUM': None}
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{'Code': '1571', 'Text': 'SCEC'}
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