SCIENCE GOALS AND OBJECTIVES INVESTIGATIONS OF THE SOUTH ISIDIS REGION OF MARS HAVE UNCOVERED ROCKS RICH IN UNALTERED MAFIC MINERALS AS WELL AS A VARIETY OF AQUEOUS ALTERATION MATERIALS. THIS REGION OF MARS IS UNIQUE IN THAT THERE ARE EXPOSED VIEWS OF THE ANCIENT CRUSTAL ROCKS LAVA FLOWS FROM SYRTIS MAJOR ALTERATION FROM THE ISIDIS IMPACT AND MULTIPLE VALLEY NETWORKS STREAM BEDS AND DELTAS. RECENT MORPHOLOGIC AND SPECTROSCOPIC STUDIES USING COORDINATED CRISM-HRSC AND CRISM-HIRISE-CTX IMAGERY HAVE REVEALED STRATIGRAPHIC UNITS CONTAINING PHYLLOSILICATES CARBONATE OLIVINE AND PYROXENE IN ISOLATED REGIONS (E.G. BISHOP ET AL. 2013). WE PROPOSE TO EXTEND THIS WORK ACROSS A BROADER AREA OF LIBYA MONTES AND SOUTH ACROSS TYRRHENA TERRA TOWARDS HELLAS BASIN. SPECIFIC QUESTIONS WE WILL ADDRESS INCLUDE: 1) WHEN AND HOW DID THE PHYLLOSILICATES OPAL CARBONATE ZEOLITE AND PERHAPS SULFATES FORM? 2) HOW WERE THE SURFACE ROCKS ALTERED BY THE SYRTIS FLOW AND THE ISIDIS IMPACT? (AND HOW SIMILAR WERE THE GEOLOGIC PROCESSES AT LIBYA MONTES NILI FOSSAE AND TYRRHENA TERRA?) 3) WHAT WERE THE EFFECTS OF THE AQUEOUS CHANNELS AND DELTAS ON THE SURFACE ROCKS? 4) HOW DID SMALLER CRATERS SUCH AS DULOVO HASHIR BRADBURY LIPANY JERRY-DESLOGES AUKI AND LOPEZ AFFECT THE SURFACE ROCKS? 5) HOW DOES THE SURFACE MINERALOGY ACROSS THE STUDY REGION COMPARE WITH ELEMENTAL ABUNDANCES FROM GRS? AND 6) WHAT EXTENT DOES IMPACT ALTERATION PLAY IN FORMATION OR TRANSFORMATION OF THE MINERALOGY? MORE SPECIFICALLY ARE THE BEIDELLITE AND CHLORITE FORMED THROUGH LOW-TEMPERATURE ALTERATION FROM IMPACTS OR FROM BURIAL DIAGENESIS? METHODOLOGY TASK 1A) WE WILL CONDUCT REGIONAL ANALYSES OF THE SPECTRAL PROPERTIES USING TES THEMIS AND CRISM MULTISPECTRAL IMAGES AND COMPARE THESE WITH TRENDS IN CHEMISTRY FROM GRS AND GRAIN SIZE INDURATION ETC. FROM THERMAL INERTIA DERIVED FROM TES AND THEMIS. TASK 1B) WE WILL ANALYZE ALL TARGETED CRISM IMAGES ACROSS THE LIBYA MONTES AND TYRRHENA TERRA REGIONS FOR DETAILED LOCAL INVESTIGATION OF THE MINERALOGY AND CORRELATION WITH FLUVIAL IMPACT VOLCANIC AND AEOLIAN FEATURES. TASK 2) WE WILL PERFORM AGE DATING AND SURFACE ANALYSES IN ORDER TO GENERATE MAPS OF GEOLOGIC TERRAINS ACROSS THE REGION. TASK 3) WE WILL PREPARE STRATIGRAPHIC VIEWS OF COMPOSITIONAL UNITS USING CRISM OVER CTX/HRSC DTMS WITH ARCSCENE FOR TENS TO 100S OF KM VIEWS CRISM OVER MOLA WITH ENVI FOR 5-10 KM VIEWS AND CRISM OVER HIRISE DTMS FOR THE HIGHEST RESOLUTION AT<3 KM VIEWS. TASK 4) WE WILL SYNTHESIZE THE RESULTS FROM ALL 3 TASKS IN CONTEXT OF WORK BY OTHERS IN THE REGION IN ORDER TO UNDERSTAND THE EFFECTS OF VOLCANIC FLUVIAL AND AEOLIAN PROCESSES AND IMPACT CRATERS ON THE MINERALOGY AND SURFACE MORPHOLOGY. THROUGH JOINT ANALYSES OF MULTIPLE DATASETS WE EXPECT TO GAIN A DETAILED UNDERSTANDING OF THE DOMINANT PROCESSES AFFECTING THE REGION PROVIDE A FULLER PICTURE OF THE AQUEOUS GEOCHEMICAL ENVIRONMENT THROUGH TIME DOCUMENT SITES OF LIKELY IMPORTANCE FOR HABITABILITY AND CHARACTERIZE SITES UNDER CONSIDERATION FOR FUTURE LANDING SITES. RELEVANCE OF PROJECT TO MDAP THE PROPOSED STUDY IS RELEVANT TO UNDERSTANDING THE AQUEOUS GEOCHEMISTRY OF MARS INCLUDING WATER-RELATED ALTERATION IN MULTIPLE SITES. THIS INVESTIGATION WILL UTILIZE MULTIPLE DATA SETS TAKEN OF MARS ESPECIALLY FROM THE MARS RECONNAISSANCE ORBITER (MRO) MARS EXPRESS MARS GLOBAL SURVEYOR (MGS) AND MARS ODYSSEY WHICH MAKES THE PROPOSED STUDY RELEVANT TO THE MDAP PROGRAM. BECAUSE THE LIBYA MONTES REGION HAS BEEN PROPOSED AS A LANDING SITE INVESTIGATING THIS SITE ALSO SUPPORTS MDAP OBJECTIVES. THE CONTEXT OF THE RESULTS PROVIDED BY THIS STUDY WILL ALSO BE RELEVANT TO THE NUMEROUS LANDING SITES PROPOSED IN THE VICINITY OF THE NILI FOSSAE REGION.