REU:  Miocene to Recent Sedimentary Conditions on the       Peruvian Margin:  Apatite Formation, Fluid Circulation, and Diagenesis
{'Code': '06040200', 'Directorate': {'Abbreviation': 'GEO', 'LongName': 'Directorate For Geosciences'}, 'Division': {'Abbreviation': 'OCE', 'LongName': 'Division Of Ocean Sciences'}}
{'SignBlockName': 'Bilal U. Haq', 'PO_EMAI': None, 'PO_PHON': None}
Three major types of phosphorites occur off Peru: (1)                      friable light-colored laminae, including small peloids and                      nodules, (2) phosphatic sands dominated by peloids, and (3)                     generally darker, well lithified dense nodules and hard-grounds.                The cores recovered during Ocean Drilling Project (ODP) Leg 112                 contain all three phosphorite types and allow expansion of the                  existing information on many aspects of the older Cenozoic to                   Quaternary sediments of this region.  Accordingly, the primary                  aims of this project are to (1) improve the understanding of                    oceanographic and sedimentologic factors which control the                      episodic deposition of phosphorites in the geologic record, and                 (2) to develop geochemical and isotopic criteria which may                      distinguish primary properites derived in the original                          depositional environment, from modified properties, those                       acquired by the influence of a subsurface saline brine or during                later burial diagenesis, or by reworking and concentration                      through sedimentologic processes.                                               %%%                                                                                  Phosphorites on continental margins are an interesting and                 potentially economical mineral deposit.  This study will examine                the controlling factors for the formation of these deposits.                    Sediments from drill cores on the Peruvian margin will be                       examined by a variety of geochemical techniques for clues to the                climatic influences on formation as well as the post-                           depositional effects of fluid flow and diagenesis.
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{'Name': 'University of California-San Diego Scripps Inst of Oceanography', 'CityName': 'LA JOLLA', 'ZipCode': '920931500', 'PhoneNumber': '8585341293', 'StreetAddress': '8622 DISCOVERY WAY # 116', 'StreetAddress2': None, 'CountryName': 'United States', 'StateName': 'California', 'StateCode': 'CA', 'CONGRESSDISTRICT': '50', 'CONGRESS_DISTRICT_ORG': 'CA50', 'ORG_UEI_NUM': 'QJ8HMDK7MRM3', 'ORG_LGL_BUS_NAME': 'UNIVERSITY OF CALIFORNIA SAN DIEGO', 'ORG_PRNT_UEI_NUM': 'QJ8HMDK7MRM3'}
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[{'Code': '1620', 'Text': 'Marine Geology and Geophysics'}, {'Code': '5720', 'Text': 'OCEAN DRILLING PROGRAM'}, {'Code': '9120', 'Text': 'CROSS-DIRECTORATE PROGRAMS'}]
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