Subsidence in the Midst of Plateau Uplift: Neogene          Evaporitic Basins of Northwest Argentina
{'Code': '06030101', 'Directorate': {'LongName': 'Directorate For Geosciences'}, 'Division': {'LongName': 'Division Of Earth Sciences'}}
{'SignBlockName': 'John A. Maccini'}
Sedimentary basins that form within magmatic arcs and                      plateaus are poorly understood.  Basic questions include: Has                   there been any tectonic subsidence or just ponding of sediment?                 Is such tectonic subsidence due to magmatic movement, crustal                   thinning, thrust loading, or reactivation of pre-existing density               anomalies?  Observations and theoretical treatments of such                     basins are rare, in spite of extensive study of the genesis of                  sedimentary basins in other settings.                                                Jordan will study Neogene and Quaternary intra-                            arc/intraplateau basins of the Central Andes mountain chain, in                 the Puna plateau of northwestern Argentina.  Late Miocene to                    Recent depocenters accumulated 2000 to 5000 m of strata while the               whole region was being uplifted.  Potential clues to the causes                 of the basins include their coincidence with gravity highs and                  the fact that they are sediment-starved.  Evaporite facies are                  volumetrically important, long-lived, and economically important.                    The work will document the paleogeography of the basins                    through the Miocene to Recent.  Study of facies, contact                        relations between the basin fill and adjacent bedrock, provenance               and paleocurrents will be complemented by absolute dating of                    intercalated ashes.
{'FirstName': 'Teresa', 'LastName': 'Jordan', 'EmailAddress': 'tej1@cornell.edu', 'StartDate': '06/01/1989', 'EndDate': None, 'RoleCode': 'Principal Investigator'}
{'Name': 'Cornell University', 'CityName': 'Ithaca', 'ZipCode': '148502820', 'PhoneNumber': '6072555014', 'StreetAddress': '373 Pine Tree Road', 'CountryName': 'United States', 'StateName': 'New York', 'StateCode': 'NY'}
[{'Code': '1551', 'Text': 'STRATIGRAPHY & PALEONTOLOGY'}, {'Code': '1571', 'Text': 'SCEC'}, {'Code': '5911', 'Text': 'ARGENTINA'}]
{'url': 'https://www.nsf.gov/awardsearch/download?DownloadFileName=1988&All=true', 'xml': '8816630.xml'}