“Unconformity-Bounded” Stratigraphic Units in the South Polar Layered Deposits (Promethei Lingula, Mars)

Guallini, Luca; Rossi, Angelo Pio; Lauro, Sebastian Emanuel; Marinangeli, Lucia; Pettinelli, Elena; Seu, Roberto (2014). “Unconformity-Bounded” Stratigraphic Units in the South Polar Layered Deposits (Promethei Lingula, Mars). In: Rocha, Rogério; Pais, João; Kullberg, José Carlos; Finney, Stanley (eds.) STRATI 2013 (pp. 331-335). Springer International Publishing 10.1007/978-3-319-04364-7_65

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We conducted a stratigraphic analysis of the South Polar Layered Deposits (SPLDs) in Promethei Lingula (PL, Mars) based on the identification of regional unconformities at visible and radar wavelengths. According to the terrestrial classification, this approach constrains the stratigraphy of the region and remedies the ambiguous interpretation of stratigraphy through marker layers, bypassing the problem related to the morphologic and radiometric appearance of the layers. Thus, the approach does not exclude diverse classifications, but complements them, whereas other discriminant elements are doubtful or difficult/impossible to be defined. Using this approach, we defined two stratigraphic units (or synthems: PL1 and PL2) in PL, which are morphologically different and divided by a regional unconformity (AuR1). This stratigraphic architecture implies that the geological history of PL has been conditioned by periodic changes in climate, which in turn are related to orbital variations of Mars.

Item Type:

Book Section (Book Chapter)

Division/Institute:

08 Faculty of Science > Physics Institute > Space Research and Planetary Sciences

UniBE Contributor:

Guallini, Luca

Subjects:

500 Science > 530 Physics

Publisher:

Springer International Publishing

Language:

English

Submitter:

Cléa Serpollier

Date Deposited:

28 Aug 2015 10:11

Last Modified:

28 Aug 2015 10:11

Publisher DOI:

10.1007/978-3-319-04364-7_65

URI:

https://boris.unibe.ch/id/eprint/66576

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