Co-Ni-As sulphides in serpentinites of different metamorphic grade in the eastern Central Alps (Switzerland and Italy)

1989 ◽  
Vol 41 (1) ◽  
pp. 65-71 ◽  
Author(s):  
Dorothee J. M. Burkhard
Keyword(s):  
Metamorphic Grade ◽  
Central Alps

Distribution of plagioclase in Carbonate rocks from the Tertiary metamorphic belt of the Central Alps

1984 ◽  
Vol 107 (3) ◽  
pp. 357-368 ◽  
Author(s):  
Eduard Wenk ◽  
Hans-Rudolf Wenk
Keyword(s):  
Carbonate Rocks ◽  
Central Alps ◽  
Metamorphic Belt

The system methane-water as a geologic thermometer and barometer from the external part of the Central Alps

1979 ◽  
Vol 102 (5) ◽  
pp. 526-536 ◽  
Author(s):  
Josef Mullis
Keyword(s):  
Central Alps ◽  
External Part

EXHUMATION OF LOWER CRUSTAL UHT ROCKS INTO THE UPPER AMPHIBOLITE FACIES MIDDLE CRUST: THE GRUF COMPLEX, EUROPEAN CENTRAL ALPS

2016 ◽  
Author(s):  
Jeffrey Oalmann ◽  
◽  
Andreas Möller ◽  
Romain Bousquet
Keyword(s):  
Amphibolite Facies ◽  
Central Alps ◽  
Middle Crust ◽  
European Central ◽  
Gruf Complex ◽  
Lower Crustal

THE ROLE OF SILICA IN IRON FORMATIONS: TEXTURAL, MINERALOGICAL, AND GEOCHEMICAL COMPARISONS FROM LOW METAMORPHIC GRADE NEOARCHEAN AND PALEOPROTEROZOIC EXAMPLES

2020 ◽  
Author(s):  
Latisha Ashley Brengman ◽  
◽  
Esther K. Stewart ◽  
Danielle Stolze ◽  
Emily Faust ◽  
...  
Keyword(s):  
Metamorphic Grade ◽  
Iron Formations

scholarly journals An Integrated Investigation of Atmospheric Gaseous Elemental Mercury Transport and Dispersion Around a Chlor-Alkali Plant in the Ossola Valley (Italian Central Alps)

Toxics ◽  
2021 ◽  
Vol 9 (7) ◽  
pp. 172
Author(s):  
Laura Fantozzi ◽  
Nicoletta Guerrieri ◽  
Giovanni Manca ◽  
Arianna Orrù ◽  
Laura Marziali
Keyword(s):  
Elemental Mercury ◽  
Background Concentration ◽  
Dispersion Pattern ◽  
Central Alps ◽  
Gaseous Elemental Mercury ◽  
Mercury Transport ◽  
Close Proximity ◽  
Potential Impact ◽  
Hg Accumulation

We present the first assessment of atmospheric pollution by mercury (Hg) in an industrialized area located in the Ossola Valley (Italian Central Alps), in close proximity to the Toce River. The study area suffers from a level of Hg contamination due to a Hg cell chlor-alkali plant operating from 1915 to the end of 2017. We measured gaseous elemental Hg (GEM) levels by means of a portable Hg analyzer during car surveys between autumn 2018 and summer 2020. Moreover, we assessed the long-term dispersion pattern of atmospheric Hg by analyzing the total Hg concentration in samples of lichens collected in the Ossola Valley. High values of GEM concentrations (1112 ng m−3) up to three orders of magnitude higher than the typical terrestrial background concentration in the northern hemisphere were measured in the proximity of the chlor-alkali plant. Hg concentrations in lichens ranged from 142 ng g−1 at sampling sites located north of the chlor-alkali plant to 624 ng g−1 in lichens collected south of the chlor-alkali plant. A north-south gradient of Hg accumulation in lichens along the Ossola Valley channel was observed, highlighting that the area located south of the chlor-alkali plant is more exposed to the dispersion of Hg emitted into the atmosphere from the industrial site. Long-term studies on Hg emission and dispersion in the Ossola Valley are needed to better assess potential impact on ecosystems and human health.

Tertiary subduction, collision and exhumation recorded in the Adula nappe, central Alps

2008 ◽  
Vol 298 (1) ◽  
pp. 365-392 ◽  
Author(s):  
Thorsten J. Nagel
Keyword(s):  
Central Alps ◽  
Adula Nappe

What drives species’ distributions along elevational gradients? Macroecological and ‐evolutionary insights from Brassicaceae of the central Alps

2021 ◽  
Vol 30 (5) ◽  
pp. 1030-1042
Author(s):  
Theofania‐Sotiria Patsiou ◽  
Nora Walden ◽  
Yvonne Willi
Keyword(s):  
Species Distributions ◽  
Central Alps ◽  
Elevational Gradients

scholarly journals Application of paleoseismological techniques to the study of Late Pleistocene-Holocene deep-seated gravitational movements at the Mortirolo Pass (central Alps, Italy)

2001 ◽  
Vol 80 (3-4) ◽  
pp. 209-227 ◽  
Author(s):  
M. Onida ◽  
F. Galadini ◽  
F. Forcella
Keyword(s):  
Late Pleistocene ◽  
Large Scale ◽  
Vertical Displacement ◽  
Central Alps ◽  
Glacial Retreat ◽  
Activation Mechanisms ◽  
Loading And Unloading ◽  
Shear Planes ◽  
Geometry And Kinematics

AbstractPaleoseismological techniques have been used to investigate gravitational deformations at the Mortirolo Pass (Valtellina region, central Alps), in order to improve the knowledge on the activation mechanisms and the evolution of deep-seated gravitational slope movements. The deformation has been responsible for mass sliding towards the Valtellina depression through the activation of several-hundred-metre-long shear planes. Minor shear planes dipping towards the mountain played the role of antithetic structures. Four trenches were excavated across scarps representing the surficial expression of shear planes affecting the bedrock and Late Pleistocene-Holocene deposits. The excavations enabled to investigate the stratigraphy of Quaternary deposits and the geometry and kinematics of the shear planes affecting them. Radiocarbon analyses on organic material contained in sediments and paleosols enabled to define a succession of displacement events which occurred during the Late Pleistocene-Holocene. Collected data indicate the persistence of the activity until recent times (last movement related to 1810-1540 cal. BP). A sudden movement has been detected along one of the main shear surfaces (dipping towards the valley) with a vertical displacement of several metres. In contrast, numerous displacements (with lower vertical offset) have been detected along the antithetic shear planes. Different hypotheses have been proposed in the past to define the origin of huge gravitational movements (glacial retreat, uplift of the Alpine chain, fault activity). However, the Late Pleistocene cycles of glacial loading and unloading on the mountain slopes seem to be the most probable factors causing deep-seated gravitational movements in the investigated region. A recent dramatic landslide in an area adjacent to the investigated one (Mt. Zandila-Valpola) testifies to the paroxistic evolution of the large scale gravitational deformations. The densely inhabited Valtellina region is affected by a large number of gravitational structures similar to those of the Mortirolo area. In consideration of the possible effects of the paroxistic activation of these structures, detailed studies on the chronology and kinematics of the deformations through the application of paleoseismological techniques should therefore be encouraged.

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