http://www.cnr.it/ontology/cnr/individuo/prodotto/ID321666
Pressure solution inhibition in a limestone-chert composite multilayer: Implications for the seismic cycle and fluid flow (Articolo in rivista)
- Type
- Label
- Pressure solution inhibition in a limestone-chert composite multilayer: Implications for the seismic cycle and fluid flow (Articolo in rivista) (literal)
- Anno
- 2015-01-01T00:00:00+01:00 (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
- 10.1016/j.tecto.2015.02.005 (literal)
- Alternative label
Lorenzo Petracchini 12, Marco Antonellini 1, Andrea Billi 2, Davide Scrocca 2, Fabio Trippetta 3, Silvio Mollo 4 (2015)
Pressure solution inhibition in a limestone-chert composite multilayer: Implications for the seismic cycle and fluid flow
in Tectonophysics (Amst. Online); Elsevier, Amsterdam (Paesi Bassi)
(literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
- Lorenzo Petracchini 12, Marco Antonellini 1, Andrea Billi 2, Davide Scrocca 2, Fabio Trippetta 3, Silvio Mollo 4 (literal)
- Rivista
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#pagineTotali
- Note
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
- 1. Dipartimento di Scienze Biologiche, Geologiche e Ambientali, Bologna University, Italy
2. Istituto di Geologia Ambientale e Geoingegneria, CNR, Rome, Italy
3. Dipartimento di Scienze della Terra, Sapienza Università di Roma, Italy
4. Istituto Nazionale di Geofisica e Vulcanologia, Rome, Italy (literal)
- Titolo
- Pressure solution inhibition in a limestone-chert composite multilayer: Implications for the seismic cycle and fluid flow (literal)
- Abstract
- Pressure solution seams (PSSs) are frequent features in carbonate rocks undergoing tectonic shortening. In
particular, pervasive, anticline-axis-parallel, bed-normal PSSs are known to develop during layer-parallelshortening
of (marly) carbonate rocks in fold-thrust belts. These pressure solution features can impact
subsequent fracture development, fluid circulation, and strain localization including the seismic cycle. It is here
demonstrated that the occurrence of frequent and continuous chert layersmay strengthen a limestone sequence
and inhibit pressure solution under layer-parallel-shortening. Field observations and laboratory determinations
are reported from marly limestone with continuous chert layers of the Scaglia Fm. (Cingoli anticline, northern
Apennines, Italy) exhumed from a depth of c. 1 km. In these outcrops, bed-normal solution seams do not occur
or they occur only where infrequent chert layers have been shortened by small thrusts. In analogy with
laminae-reinforced composite materials, a model is developed explaining the field observations with the
strengthening effect of chert in the chert-limestone composite multilayer. During layer-parallel-shortening,
the composite multilayer deforms under equal strain boundary conditions. In this situation, the tectonic load is
mostly supported by the stiff and frequent chert layers and the strain of the whole chert-limestone composite
remains in the elastic field, so that pressure solution seam development is prevented in the limestone beds.
Ourmodel may be applied down to a depth of a few kilometers in the upper crust that is relevant for the seismic
cycle and fluid flow. (literal)
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