Depositional and Diagenetic Sulfates of Hogwallow Flats and Yori Pass, Jezero Crater: Evaluating Preservation Potential of Environmental Indicators and Possible Biosignatures From Past Martian Surface Waters and Groundwaters

The Mars 2020 Perseverance rover has examined and sampled sulfate-rich clastic rocks from the Hogwallow Flats member at Hawksbill Gap and the Yori Pass member at Cape Nukshak. Both strata are located on the Jezero crater western fan front, are lithologically and stratigraphically similar, and have b...

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Detalles Bibliográficos
Autores: Benison, Kathleen C., Gill, Karena K., Sharma, Sunanda, Siljeström, Sandra, Zawaski, Mike, Bosak, Tanja, Broz, Adrian, Clark, Benton C., Cloutis, Edward, Czaja, Andrew D., Flannery, David, Fornaro, Teresa, Gómez, Felipe, Hand, Kevin, Herd, Chris D.K., Johnson, Jeffrey R., Madariaga, Juan Manuel, Madsen, Morten B., Martinez-Frías, Jesús, Nachon, Marion, Núñez, Jorge I., Pedersen, David A.K., Randazzo, Nicholas, Shuster, David L., Simon, Justin, Steele, Andrew, Tate, Christian, Treiman, Allan, Uckert, Kyle, Williams, Amy J., Yanchilina, Anastasia
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2024
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/386236
Acceso en línea:http://hdl.handle.net/10261/386236
https://api.elsevier.com/content/abstract/scopus_id/85184453696
Access Level:acceso abierto
Palabra clave:Biosignatures
Cements
Fluid inclusions
Mars
Petrography
Sulfate
Descripción
Sumario:The Mars 2020 Perseverance rover has examined and sampled sulfate-rich clastic rocks from the Hogwallow Flats member at Hawksbill Gap and the Yori Pass member at Cape Nukshak. Both strata are located on the Jezero crater western fan front, are lithologically and stratigraphically similar, and have been assigned to the Shenandoah formation. In situ analyses demonstrate that these are fine-grained sandstones composed of phyllosilicates, hematite, Ca-sulfates, Fe-Mg-sulfates, ferric sulfates, and possibly chloride salts. Sulfate minerals are found both as depositional grains and diagenetic features, including intergranular cement and vein- and vug-cements. Here, we describe the possibility of various sulfate phases to preserve potential biosignatures and the record of paleoenvironmental conditions in fluid and solid inclusions, based on findings from analog sulfate-rich rocks on Earth. The samples collected from these outcrops, Hazeltop and Bearwallow from Hogwallow Flats, and Kukaklek from Yori Pass, should be examined for such potential biosignatures and environmental indicators upon return to Earth.

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