Neo-Alpine evolution of the Southern Eastern Alps

Castellarin, Alberto; Cantelli, Luigi

doi:10.1016/s0264-3707(99)00036-8

Cited by 218 publications

(219 citation statements)

References 17 publications

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“…The orientation of the crustal compressive stress correlates well with the maximum stress orientation reported in literature by Castellarin et al (1992) for the Valsugana structural system. Those authors indicated a marked compres sional deformation occurring between the Serravallian and the Tortonian and trending ~N340°.…”

Section: Regional-scale Investigations: Lineament Analysissupporting

confidence: 85%

“…Mesostructural analysis carried out in the Southern Alps by various authors (Bosellini and Doglioni, 1986;Doglioni, 1987;Castellarin et al, 1992;Castellarin and Cantelli, 2000) documented several compressional tec tonic events that can be summarized as follows. (1) The Mesoalpine (Eocene) and early Neoalpine (OligoMiocene) com pressional events responsible for the socalled "Dinaric compression" .…”

Section: Study Area Tectonic Settingmentioning

confidence: 99%

“…The ma trix porosity is <5% (Blendinger et al, 2015), whereas the secondary permea bility is high due to the rock brittle deformation. This includes a complex net work of fractures and faults generated from the polyphased tectonic history that has affected this part of the Alpine orogen since Eocene times (Bosellini and Doglioni, 1986;Doglioni, 1987;Castellarin et al, 1992;Schönborn, 1999;Castellarin and Cantelli, 2000). Despite the fact that dolomite groundwater sys tems usually show less karstification than limestone systems (Hartmann et al, 2010), the aquifer of the study area has several karst features.…”

Section: Introductionmentioning

confidence: 99%

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Lineament domain analysis to infer groundwater flow paths: Clues from the Pale di San Martino fractured aquifer, Eastern Italian Alps

2017

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An automatic lineament extraction was carried out on a processed digi tal elevation model of a highaltitude Alpine fractured reservoir, the Pale di San Martino area (Dolomites) located in the southern sector of the Eastern Italian Alps. The strike of the main lineament domain indicates the direction of the principal crustal stress. This direction was compared with earthquake focal mechanisms to confirm the orientation of the regional crustal stress. The two data sets provide similar results and show a NNWSSE maximum horizontal crustal stress orientation, compatible with the direction of the last Alpine compression reported by previous studies in the investigated region. The orientation of the maximum horizontal compressive stress was then used to explore the ability of specific fracture and fault sets to enhance ground water flow. Subvertical strikeslip faults and joints oriented NWSE to north south provide the greater contribution to the groundwater flow. The location of the main springs and evidence from a dye tracer test conducted in the area confirm this main drainage direction. This study demonstrates that automatic lineament analysis is an efficient and inexpensive method to identify the tra jectories of groundwater flow in fractured aquifers.

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Section: Regional-scale Investigations: Lineament Analysissupporting

confidence: 85%

Section: Study Area Tectonic Settingmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Lineament domain analysis to infer groundwater flow paths: Clues from the Pale di San Martino fractured aquifer, Eastern Italian Alps

2017

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“…It thus follows that the ongoing vertical uplift and seismicity may well represent a latest stage of Alpine deformation. Similarly, on the Southside of the Alps, post-Messinian sediments in the Po Basin rest unconformable on older strata [146,147] and indicate a Plio-Pleistocene phase of Alpine contraction. Summing up it is concluded that the Alps represent a collision orogen in the waning stage of its formation.…”

Section: Central Alps Of Switzerlandmentioning

confidence: 99%

Thick-Skinned and Thin-Skinned Tectonics: A Global Perspective

Pfiffner¹

2017

Preprint

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This paper gives an overview of the large-scale tectonic styles encountered in orogens worldwide. Thin-skinned and thick-skinned tectonics represents two end member styles recognized in mountain ranges. A thick-skinned tectonic style is typical for margins of continental plates. Thick-skinned style including the entire crust and possibly the lithospheric mantle are associated with intracontinental contraction. Delamination of subducting continental crust and horizontal protrusion of upper plate crust into the opening gap occurs in the terminal stage of continent-continent collision. Continental crust thinned prior to contraction is likely to develop relatively thin thrust sheets of crystalline basement. A true thin-skinned type requires a detachment layer of sufficient thickness. Thickness of the décollement layer as well as the mechanical contrast between décollement layer and detached cover control the style of folding and thrusting within the detached cover units. In subduction related orogens, thin-and thick-skinned deformation may occur several hundreds of kilometers from the plate contact zone. Basin inversion resulting from horizontal contraction may lead to the formation of basement uplifts by the combined reactivation of pre-existing normal faults and initiation of new reverse faults. In composite orogens thick-skinned and thin-skinned structures evolve with a pattern where nappe stacking propagates outward and downward.

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“…It thus follows that the ongoing vertical uplift and seismicity may well represent a latest stage of Alpine deformation. Similarly, on the Southside of the Alps, post-Messinian sediments in the Po Basin rest unconformable on older strata [155,156] and indicate a Plio-Pleistocene phase of Alpine contraction. Summing up it is concluded that the Alps represent a collision orogen in the waning stage of its formation.…”

Section: Central Alps Of Switzerlandmentioning

confidence: 99%

Thick-Skinned and Thin-Skinned Tectonics: A Global Perspective

Pfiffner¹

2017

Preprint

View full text Add to dashboard Cite

This paper gives an overview of the large-scale tectonic styles encountered in orogens worldwide. Thin-skinned and thick-skinned tectonics represent two end member styles recognized in mountain ranges. Both styles are encountered in former passive margins of continental plates. Thick-skinned style including the entire crust and possibly the lithospheric mantle are associated with intracontinental contraction. Delamination of subducting continental crust and horizontal protrusion of upper plate crust into the opening gap occurs in the terminal stage of continent-continent collision. Continental crust thinned prior to contraction is likely to develop relatively thin thrust sheets of crystalline basement. A true thin-skinned type requires a detachment layer of sufficient thickness. Thickness of the décollement layer as well as the mechanical contrast between décollement layer and detached cover control the style of folding and thrusting within the detached cover units. In subduction-related orogens, thin-and thick-skinned deformation may occur several hundreds of kilometers from the plate contact zone. Basin inversion resulting from horizontal contraction may lead to the formation of basement uplifts by the combined reactivation of pre-existing normal faults and initiation of new reverse faults. In most orogens thick-skinned and thin-skinned structures both occur and evolve with a pattern where nappe stacking propagates outward and downward.

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Neo-Alpine evolution of the Southern Eastern Alps

Cited by 218 publications

References 17 publications

Lineament domain analysis to infer groundwater flow paths: Clues from the Pale di San Martino fractured aquifer, Eastern Italian Alps

Lineament domain analysis to infer groundwater flow paths: Clues from the Pale di San Martino fractured aquifer, Eastern Italian Alps

Thick-Skinned and Thin-Skinned Tectonics: A Global Perspective

Thick-Skinned and Thin-Skinned Tectonics: A Global Perspective

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