Mechanics of Faults and Duplexes in Layered Sedimentary     Rocks:  Applications of Anisotropic Plastic Rheology
{'Code': '06030103', 'Directorate': {'Abbreviation': 'GEO', 'LongName': 'Directorate For Geosciences'}, 'Division': {'Abbreviation': 'EAR', 'LongName': 'Division Of Earth Sciences'}}
{'SignBlockName': 'Thomas O. Wright', 'PO_EMAI': None, 'PO_PHON': None}
Faults and duplexes are two major structures which                      contribute to the internal structure of thin-skinned                            fold-and-thrust wedges and the deformation of masses of layered                 sedimentary rock.  Detailed observations of these structures                    from well-exposed outcrops in the central Appalachians provide                  the basis for a theoretical study.  Emphasis is placed on                       mechanical analysis based on the theory for the deformation of                  an anisotropic cohesive Coulomb material.  Theoretical results                  will be developed for the following three topics.                                       (1) The interaction between intersecting wedge faults and               bed-parallel faults, which controls the initiation and                          propagation of thrust faults in layered rock.  This requires                    solutions for converget flow in wedge-shaped regions.                                   (2) The initiation of duplex structures by analysis of flow             instability in a confined layer.                                                        (3) The nature and orientation of velocity characteristics              in an anisotropic plastic solid is determined and used to                       interpret the mechanical natures of thrust faults, kink bands,                  and the hinges of fault- bend folds.                                                    The analogs of these structutes in layer-parallel extension             will also be studied, and the results applied to the                            interpretation of available field observations.
{'FirstName': 'Raymond', 'LastName': 'Fletcher', 'PI_MID_INIT': 'C', 'PI_SUFX_NAME': None, 'PI_FULL_NAME': 'Raymond C Fletcher', 'EmailAddress': 'rfletche@geosc.psu.edu', 'NSF_ID': '000110124', 'StartDate': '08/01/1987', 'EndDate': None, 'RoleCode': 'Principal Investigator'}
{'Name': 'Texas A&M Research Foundation', 'CityName': 'COLLEGE STATION', 'ZipCode': '778454375', 'PhoneNumber': '9798626777', 'StreetAddress': '400 HARVEY MITCHELL PKWY S STE 3', 'StreetAddress2': None, 'CountryName': 'United States', 'StateName': 'Texas', 'StateCode': 'TX', 'CONGRESSDISTRICT': '10', 'CONGRESS_DISTRICT_ORG': 'TX10', 'ORG_UEI_NUM': 'EQH8NQ4AXFT7', 'ORG_LGL_BUS_NAME': 'TEXAS A & M RESEARCH FOUNDATION', 'ORG_PRNT_UEI_NUM': None}
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{'Code': '157200', 'Text': 'Tectonics'}
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