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Investigations on evaporitic rock were carried out as part of the MIne Analog Research (MINAR) project at Boulby Mine, the United Kingdom. The edges of the polygons have a higher clay content and contain higher abundances of minerals such as quartz and microcline, and clays such as illite and chlorite, compared with the interior of polygons, suggesting that the edges were preferred locations for the accumulation of weathering products during their formation. The mineral content and its strontium isotope ratio suggest that the material is from continental weathering at the borders of the Permian Zechstein Sea. The edges of the polygons contain material with mean \u03b4\n                    <jats:sup>13<\/jats:sup>\n                    C and \u03b4\n                    <jats:sup>15<\/jats:sup>\n                    N values of \u221220.8 and 5.3, respectively. Lipids, including alkanes and hopanes, were extracted from the interior and edges of the polygons, which are inferred to represent organic material entrained in the evaporites when they were formed. The presence of long-chain alkanes (C\n                    <jats:sub>20<\/jats:sub>\n                    \u2013C\n                    <jats:sub>35<\/jats:sub>\n                    ) that lack a carbon preference, low abundances of C\n                    <jats:sub>23<\/jats:sub>\n                    \u2013C\n                    <jats:sub>29<\/jats:sub>\n                    hopanes, and lack of marine, evaporitic, or thermal maturity indicators show that lipid biomarkers were, at least in part, potentially derived from a continental source and have not undergone significant thermal maturation since deposition. Lipid extractions using weak acids revealed significantly more lipids than those without acid, potentially indicating that encapsulation was not the only type of preservation mechanism occurring in Boulby salts. These data demonstrate the potential for ancient evaporites and their polygons to preserve information on local geological conditions, ancient habitability, and evidence of life. The data show that analogous martian evaporitic deposits are good targets for future life detection missions and the investigation of ancient martian habitability.\n                  <\/jats:p>","DOI":"10.1089\/ast.2019.2053","type":"journal-article","created":{"date-parts":[[2020,4,14]],"date-time":"2020-04-14T14:50:57Z","timestamp":1586875857000},"page":"864-877","update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":18,"title":["0.25 Ga Salt Deposits Preserve Signatures of Habitable Conditions and Ancient Lipids"],"prefix":"10.1177","volume":"20","author":[{"given":"Charles S.","family":"Cockell","sequence":"first","affiliation":[{"name":"UK Centre for Astrobiology, School of Physics and Astronomy, University of Edinburgh, Edinburgh, United Kingdom."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Mary Beth","family":"Wilhelm","sequence":"additional","affiliation":[{"name":"Space Science and Astrobiology Division, NASA Ames Research Center, Moffett Field, California."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Scott","family":"Perl","sequence":"additional","affiliation":[{"name":"California Institute of Technology\/NASA Jet Propulsion Laboratory, Pasadena, California."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jennifer","family":"Wadsworth","sequence":"additional","affiliation":[{"name":"UK Centre for Astrobiology, School of Physics and Astronomy, University of Edinburgh, Edinburgh, United Kingdom."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Sam","family":"Payler","sequence":"additional","affiliation":[{"name":"UK Centre for Astrobiology, School of Physics and Astronomy, University of Edinburgh, Edinburgh, United Kingdom."},{"name":"European Astronaut Centre, Cologne, Germany."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Sean","family":"McMahon","sequence":"additional","affiliation":[{"name":"UK Centre for Astrobiology, School of Physics and Astronomy, University of Edinburgh, Edinburgh, United Kingdom."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Sean","family":"Paling","sequence":"additional","affiliation":[{"name":"STFC Boulby Underground Laboratory, Boulby, United Kingdom."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Thomas","family":"Edwards","sequence":"additional","affiliation":[{"name":"STFC Boulby Underground Laboratory, Boulby, United Kingdom."}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"179","published-online":{"date-parts":[[2020,7,8]]},"reference":[{"key":"e_1_3_4_2_1","doi-asserted-by":"publisher","DOI":"10.1089\/ast.2013.1021"},{"key":"e_1_3_4_3_1","first-page":"53","article-title":"The geochemistry of evaporites and associated petroleum","author":"Anders D.E.","year":"1990","unstructured":"Anders D.E., and Hite R.J. 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