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Abstract

AAPG Bulletin, V. 101, No. 4 (April 2017), P. 475-483.

Copyright ©2017. The American Association of Petroleum Geologists. All rights reserved.

DOI: 10.1306/011817DIG17026

Geometry and evolution of Triassic high-relief, isolated microbial platforms in the Dolomites, Italy: The Anisian Latemar and Carnian Sella platforms compared

Nereo Preto,1 Piero Gianolla,2 Marco Franceschi,3 Giovanni Gattolin,4 and Alberto Riva5

1Department of Geosciences, University of Padova, Via Gradenigo 6, 35131 Padova, Italy; [email protected]
2Department of Physics and Earth Sciences, University of Ferrara, Via Saragat, 1, 44122 Ferrara, Italy; [email protected]
3Department of Physics and Earth Sciences, University of Ferrara, Via Saragat, 1, 44122 Ferrara, Italy; present address: Department of Geosciences, University of Padova, Via Gradenigo 6, 35131 Padova, Italy; [email protected]
4Upstream and Technical Services, Eni S.p.A., Via Emilia, 1, 20097 San Donato Milanese, Italy; [email protected]
5G.E. Plan Consulting S.r.l., Via L. Ariosto, 58, 44121 Ferrara, Italy; Department of Physics and Earth Sciences, University of Ferrara, Via Saragat, 1, 44122 Ferrara, Italy; [email protected]

ABSTRACT

Exceptional outcrop conditions in the Dolomites of northern Italy allow appreciation of facies variability, depositional geometries, and platform-to-basin relationships at seismic scale that developed during a complex sedimentary evolution. This itinerary focuses on two Triassic microbial carbonate platforms, the Latemar and Sella, providing examples of key concepts that are fundamental for the interpretation of subsurface geologic bodies. By comparing these two microbial platforms, a variability of facies architectures is highlighted. The relatively easy access, the exceptional exposure conditions, and the variety of carbonate platform types that grew in the Triassic of the Dolomites make this region an ideal field geology laboratory for training geologists working in exploration and in addition provide potential outcrop analogs of subsurface carbonate reservoirs.

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