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Santorini volcano as a potential Martian analogue: the Balos Cove Basalts

Pantazidis Avgoustos, Baziotis Ioannis P., Solomonidou, Anezina, 1983-, Manoutsoglou Emmanouil, Palles Dimitrios, Kamitsos Efstratios I., Karageorgis Aristomenis P., Profitiliotis George, Kondoyanni M., Klemme Stephan, Berndt Jasper, Ming Douglas W., Asimow, P. D

Απλή Εγγραφή

URIhttp://purl.tuc.gr/dl/dias/CF250A2C-FC09-4932-BA9A-980148644447-
Αναγνωριστικόhttps://doi.org/10.1016/j.icarus.2019.02.026-
Αναγνωριστικόhttps://www.sciencedirect.com/science/article/pii/S001910351830681X-
Γλώσσαen-
Μέγεθος13 pagesen
ΤίτλοςSantorini volcano as a potential Martian analogue: the Balos Cove Basaltsen
ΔημιουργόςPantazidis Avgoustosen
ΔημιουργόςBaziotis Ioannis P.en
ΔημιουργόςSolomonidou, Anezina, 1983-en
ΔημιουργόςManoutsoglou Emmanouilen
ΔημιουργόςΜανουτσογλου Εμμανουηλel
ΔημιουργόςPalles Dimitriosen
ΔημιουργόςKamitsos Efstratios I.en
ΔημιουργόςKarageorgis Aristomenis P.en
ΔημιουργόςProfitiliotis Georgeen
ΔημιουργόςKondoyanni M.en
ΔημιουργόςKlemme Stephanen
ΔημιουργόςBerndt Jasperen
ΔημιουργόςMing Douglas W.en
ΔημιουργόςAsimow, P. Den
ΕκδότηςElsevieren
ΠερίληψηThe interpretation of geologic processes on Mars from sparse meteorite, remote sensing and rover data is influenced by knowledge gained from well-characterized terrestrial analogues. This calls for detailed study of candidate terrestrial analogues and comparison of their observable features to those encountered on the surface of Mars. We evaluated the mineralogical, geochemical, and physical properties of the Balos cove basalts (BCB) from the island of Santorini and compared them to Martian meteorites, Mars rover surface measurements, and other verified Martian analogues obtained from the International Space Analogue Rockstore (ISAR). Twenty rock samples were collected from the Balos cove area based on their freshness, integrity, and basaltic appearance in the field. Optical microscopy of BCB revealed a pilotaxitic to trachytic texture, with olivine and clinopyroxene phenocrysts in a fine groundmass of olivine, clinopyroxene, plagioclase, magnetite, and devitrified glass. All major minerals show normal zoning, including calcic plagioclase (An 78–85 at the core and An 60–76 at the rim), augite (En 36-48 Wo 41-44 Fs 11–21 ), and olivine (Fo 74–88 ). The dominant bands in the infrared-attenuated total reflectance (IR-ATR) spectra from BCB can be assigned to olivine (~875 cm −1 ), calcic plagioclase (~1130 cm −1 ), and augite (~970 cm −1 ). The whole-rock chemical compositions and mineralogy of the BCB are similar to published analyses of typical olivine-phyric shergottites and basalts and basaltic materials analyzed in Gusev and Gale craters on Mars. BCB porosity is in the range of 7–15% and is similar to the porosities of the ISAR samples. Although no terrestrial rock is ever a perfect match to Martian compositions, the differences in mineralogy and geochemistry between BCB and some classes of Martian samples are relatively subtle and the basalts of Santorini are as close a match as other accepted Mars basalt analogues. The Santorini site offers excellent field logistics that, together with the petrology of the outcrop, makes it a valuable locality for testing and calibration deployments, field training, and other activities related to current and future Mars exploration.en
ΤύποςPeer-Reviewed Journal Publicationen
ΤύποςΔημοσίευση σε Περιοδικό με Κριτέςel
Άδεια Χρήσηςhttp://creativecommons.org/licenses/by/4.0/en
Ημερομηνία2020-06-10-
Ημερομηνία Δημοσίευσης2019-
Θεματική ΚατηγορίαBasaltsen
Θεματική ΚατηγορίαComparative planetologyen
Θεματική ΚατηγορίαMartian analoguesen
Θεματική ΚατηγορίαMineral chemistryen
Θεματική ΚατηγορίαPlanetary geologyen
Θεματική ΚατηγορίαSantorini volcanoen
Βιβλιογραφική ΑναφοράA. Pantazidis, I. Baziotis, A. Solomonidou, E. Manoutsoglou, D. Palles, E. Kamitsos, A. Karageorgis, G. Profitiliotis, M. Kondoyanni, S. Klemme, J. Berndt, D. Ming and P.D. Asimow, "Santorini volcano as a potential Martian analogue: the Balos Cove Basalts," Icarus, vol. 325, pp. 128-140, Jun. 2019. doi: 10.1016/j.icarus.2019.02.026en

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