Laura Crispini

Laura Crispini
Università degli Studi di Genova | UNIGE · Dipartimento di Scienze della terra, dell'ambiente e della vita (DISTAV)

PhD in Earth Sciences

About

255
Publications
41,797
Reads
How we measure 'reads'
A 'read' is counted each time someone views a publication summary (such as the title, abstract, and list of authors), clicks on a figure, or views or downloads the full-text. Learn more
3,182
Citations
Citations since 2017
61 Research Items
1546 Citations
20172018201920202021202220230100200300
20172018201920202021202220230100200300
20172018201920202021202220230100200300
20172018201920202021202220230100200300
Introduction
Full Professor of Structural Geology at the University of Genova (Italy). Specific expertise in geological field survey and mapping, structural geology, tectonic of oceanic lithosphere, ophiolites, metamorphic petrology, polymetamorphic terranes, fluid-rock interactions, kinematic analysis.
Additional affiliations
December 2011 - present
Università degli Studi di Genova
Position
  • Professor (Associate)
April 1999 - November 2011
Università degli Studi di Genova
Position
  • Researcher
January 1993 - May 1993
ETH Zurich
Position
  • Research Associate

Publications

Publications (255)
Article
Full-text available
Ophiolite magnesite deposits are among the main sources of magnesite, a raw material critical for the EU. The present work focuses on magnesite occurrences at Kymasi (Evia Island, Greece), in close spatial association with chromitite within the same peridotite massif, and on the relationship between ultramafic rocks and late magnesite veins. Chromi...
Article
Full-text available
The inventory and the assessment of geosites plays a very important role in highlighting scientific, geotouristic, and geoeducational potential, as well as the ability to identify any criticalities and vulnerabilities of the geological heritage of a territory. Within a geopark, these assessment activities are also crucial for developing land manage...
Conference Paper
Full-text available
We present new field-based data derived from geological mapping of the Finale Ligure area (Ligurian Alps), where post-collisional Miocene deposits of the “Pietra di Finale Formation” and its “Basal Complex” occur. The fieldwork has been performed during the 1:10,000 scale mapping of the Sheet 245 “Albenga” in the framework of the Italian Geological...
Article
Full-text available
The review of recent bathymetric and geophysical data collected in the framework of several research and cartographic projects have allowed a detailed reconstruction of the morpho-structural setting and the (neo)tectonic evolution for both the Alpine and Apennine margins of the Ligurian Sea (Italy). The widespread occurrence of erosional processes...
Article
Full-text available
Persistent Scatterer Interferometry (PSI) is one of the most powerful tools for identifying and monitoring areas exposed to surface deformations such as landslides or subsidence. In this work, we propose a new method that we named CAPS (Correlation Analysis on Persistent Scatterers), to extend the capability of PSI in recognizing and characterising...
Article
Full-text available
The dense fault network that separates the tectonic units of northern Victoria Land to the E from the East Antarctic Craton to the W represents a regionally sized, NNW‐SSE trending deformation zone that is also known as the Rennick Graben Fault system (RGF). This long‐lived deformation zone is characterized by great structural complexity, with the...
Conference Paper
Full-text available
In the time frame after initial deposition but prior to lithification, sediments are frequently prone to physical, chemical, or biological disturbance. The resultant structures-commonly referred to as soft sediment deformation (SSD)-can be explained by a variety of mechanisms, each defined by a distinct set of parameters. Among the factors responsi...
Article
This new map at 1:25,000 scale covers an area in the Western Alps (Italy), where the HP metamorphic basement is covered by a (predominantly clastic) late- and post-orogenic upper Eocene-lower Miocene cover. This provides unequivocal evidence that exhumation of the metamorphic units was accomplished by the lower Oligocene. The basement is made up of...
Conference Paper
Full-text available
Magnesite ore deposits are the main source of Mg for the industry and are used in the production of various kinds of magnesia. They are closely associated to ophiolite geological contexts, and are usually hosted within variously altered harzburgites and dunites. Greece hosts exploitable ophiolite-related magnesite deposits in two areas, located in...
Article
Full-text available
Landslides are a major threat for population and urban areas. Persistent Scatterer Interferometry (PSI) is a powerful tool for identifying landslides and monitoring their evolution over long periods and has proven to be very useful especially in urban areas, where a sufficient number of PS can be generated. In this study, we applied PS interferomet...
Article
Full-text available
Melt transport mechanisms have an important impact on the chemical composition of the percolated host rock and the migrating melts. Melt migration is usually assumed to occur at grain boundaries. However, microstructural studies revealed the occurrence of polyphase inclusions along dislocations, subgrain boundaries and microcracks in single mineral...
Thesis
Full-text available
Slow-moving active landslides (earthflows) are frequently driven by precipitation. The climate change is altering the intensity of precipitation worldwide, this will increase the impact on landslides. Controls on the occurrence of slow-moving landslides are need to be understood for landscape evolution models and hazard planning. Here, we use airbo...
Article
Full-text available
For more than half a century, exploring a complete sequence of the oceanic crust from the seafloor through the Mohorovičić discontinuity (Moho) and into the uppermost mantle has been one of the most challenging missions of scientific ocean drilling. Such a scientific and technological achievement would provide humankind with profound insights into...
Article
Exhumed faults in granitoids along the Lanterman Fault-Rennick Graben Fault system (northern Victoria Land, Antarctica) show superposed ductile to brittle deformation and pervasive hydrothermal fluid-rock interaction. These processes triggered multiple brittle slip events producing crosscutting epidote and prehnite-rich fault veins, ultracataclasit...
Article
Full-text available
In Antarctica, spectral mapping of altered minerals is very challenging due to the remoteness and inaccessibility of poorly exposed outcrops. This investigation evaluates the capability of Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) satellite remote sensing imagery for mapping and discrimination of phyllosilicate mineral...
Article
Full-text available
Deep-seated gravitational slope deformation (DsGSD) represents a relevant geological-geomorphological feature of the landscape and has drawn scientific attention for the past several decades. During a detailed fieldwork in the Ligurian Alps, we identified areas (larger than ca 5 km2), characterized by very low percentage of outcrops, with rock bloc...
Article
The remote lower reaches of the Rennick Glacier in the far north of Victoria Land hold some of the least-explored outcrop areas of the Transantarctic basin system. Following recent international field-work efforts in the Helliwell Hills, we here provide a comprehensive emendation to the regional stratigraphy. Results of geological and palaeontologi...
Article
Full-text available
The importance of magnesite for the EU economy and industry is very high, making the understanding of their genesis for the exploration for new deposits a priority for the raw materials scientific community. Towards this direction, the study of the magnesite-hosting ultramafic rocks can be proved very useful. For the present study, ultramafic rock...
Article
Estimating the paleo-depth of a fossil fault usually requires the application of complex and highly specialized techniques. We propose a new method, that is based mainly on field data and simplifies the process: - calculation of the reduced stress tensor (with four variables) through inversion of fault-slip data; - calculation of the complete stres...
Article
The chemical and physical processes operating during subduction-zone metamorphism can profoundly influence the cycling of elements on Earth. Deep-Earth carbon (C) cycling and mobility in subduction zones has been of particular recent interest to the scientific community. Here, we present textural and geochemical data (CO, Sr isotopes and bulk and i...
Research Proposal
Full-text available
Dear Colleagues, In the last two decades, several important space-borne hyperspectral and multispectral sensors have been launched by different space agencies. Due to the lack of global coverage of space-borne hyperspectral sensors; routine aircraft-based and drone-based hyperspectral surveys are carried out in different countries using different a...
Article
Full-text available
Holes BA1B and BA3A were drilled into the Wadi Tayin Massif, southern ophiolite complex of Oman, a fragment of the Tethyan oceanic lithosphere obducted onto the Arabian continent. Within the sequence, we have studied a portion of the shallow mantle, composed mainly of strongly serpentinised harzburgite that embeds dunitic levels, the biggest being...
Article
Full-text available
Several regions in the High Arctic still lingered poorly explored for a variety of mineralization types because of harsh climate environments and remoteness. Inglefield Land is an ice-free region in northwest Greenland that contains copper-gold mineralization associated with hydrothermal alteration mineral assemblages. In this study, Landsat-8, Adv...
Poster
Full-text available
High concentrations of potentially toxic elements (PTEs) in surface and near-surface environment may be attributed both to anthropogenic sources (including industrial, agricultural, and mining activities) and to geogenic sources (e.g., natural weathering of rocks and pedogenesis). Among the geogenic sources, ultramafic rocks (e.g., dunite, peridoti...
Article
Full-text available
Dike swarms are commonly linked with extensional structures in diverse geodynamic environments. Mafic dyke swarms are typically used to reconstruct the paleo-stress fields of a given region. These dikes are considered paleo-stress indicators and excellent time marker (if related geochronological data are available) of the local and regional stress...
Article
Full-text available
Ultramafic soils are characterized by severe edaphic conditions induced by a low content of essential nutrients, an adverse Ca/Mg ratio, a low water-holding capacity, and high contents of geogenic potentially toxic elements (PTEs), in particular Cr, Ni, and Co. These metals commonly exceed the content limits set by environmental agencies and govern...
Article
The aim of the work is to assess the role of local-scale lithological, textural, and structural factors in the distribution of potentially toxic elements (PTEs) in different ultramafic rocks from the high-pressure ophiolitic Voltri Massif (Central Liguria, NW Italy). The results evidenced that Cr (up to 4183 ppm), Ni (up to 3900 ppm), and Co (up to...
Data
The SCAR GeoMAP (Geological Mapping Update of Antarctica) action group is an international effort to gather rock and surficial deposit information and compile it into a GIS framework to underpin studies of glacial dynamics and climate change. GeoMAP's dataset depicts ‘known geology’ from rock exposures in an accessible format that contributes to co...
Article
Full-text available
Listvenites normally form during hydrothermal/metasomatic alteration of mafic and ultramafic rocks and represent a key indicator for the occurrence of ore mineralizations in orogenic systems. Hydrothermal/metasomatic alteration mineral assemblages are one of the significant indicators for ore mineralizations in the damage zones of major tectonic bo...
Article
Full-text available
The aim of this work is to present a new georeferenced geological map of an area in the Ligurian Western Alps (Lavagnina Lakes area) that includes both a unique geodiversity and great biodiversity, a peculiar geological heritage, and cultural features. The study area is located in the northern part of the Capanne di Marcarolo Regional Natural Park,...
Conference Paper
Full-text available
Anhydrite is one of the weakest minerals in large scale fault zones. Its weak rheology means that deformation is likely to localise along anhydrite-rich layers. Thus the study of anhydrite microstructures in these layers provides important clues on the deformation history of fault zones. The presence of anhydrite in oceanic crust environments is si...
Article
Full-text available
Many recent studies have investigated the replacive formation of troctolites from mantle protoliths and the compositional evolution of the percolating melt during melt-rock interaction processes. However, strong structural and geochemical constraints for a replacive origin have not yet been established. The Erro-Tobbio impregnated mantle peridotite...
Article
Full-text available
Here, we report on a tetrapod footprint from the Transantarctic Basin in the far north of Victoria Land, which marks the first record of terrestrial vertebrates for this region. The single specimen derives from a previously unknown lithological unit of Middle or Late Triassic age of the Beacon Supergroup in the Helliwell Hills in the central Rennic...
Article
The permeability structure of oceanic crust controls both the spatial and temporal extent of hydrothermal circulation, but the detailed geometry of fractures in seafloor rocks is not well‐known. We apply an equivalent channel model to veins, joints, faults, and breccias preserved in recovered cores from ODP‐IODP Hole 1256D to calculate paleo‐permea...
Poster
Full-text available
In this study, we have analysed the mineralogy and the crystal chemistry of serpentine soils from ultramafic rocks of the metaophiolitic Voltri Massif (Liguria, Italy), in order to determine the primary and authigenic mineral species controlling the distribution and the mobility of PTEs during pedogenic processes. These serpentine soils were charac...
Article
In this invited review, we summarize the main results of ongoing research on “in situ” carbon mineralization in ultramafic rocks, including outcrop studies in Oman, investigation of carbon mass transfer in subduction zones from the Oman Drilling Project, laboratory investigations and numerical modeling of the pressure of crystallization and reactio...
Article
Full-text available
We document a normal fault that lies at a high angle to an oceanic detachment that exposed peridotite on the Jurassic seafloor. Faults such as this are inferred to be discharge zones for ultramafic-hosted hydrothermal systems, but have not yet been sampled from the modern seafloor. The fault comprises 0.5–2-m-thick zones of sheared talc + sulfide w...
Data
Photomicrograph of a Pseudotachylite vein in metabasite from the Voltri Massif
Article
Recent studies investigate the replacive formation of hybrid troctolites from mantle peridotites after multiple stages of melt-rock reaction. However, these studies are not conducted in a field-controlled geological setting displaying the clear evolution from the protolith to the end-product of the reactions. The Mt. Maggiore peridotitic body expos...
Conference Paper
Full-text available
16:30-16:45 Oman Drilling Project Holes GT1A and GT2A were drilled into the Wadi Tayin massif, Samail ophiolite and both recovered ca. 400 m of continuous core through a section of the layered gabbros and the foliated-layered gabbro transition. Hole GT1A is cut by a discrete fault system including localized thin ultracataclastic fault zones. Hole G...
Conference Paper
Full-text available
Ultramafic rocks have high concentrations of trace metals such as Cr, Ni, and Co, which have potential impact on environmental and human health once they are mobilized into soil, water or dust. Trace metals-bearing phases are represented mainly by spinels (magnetite, picotite, and hercynite) and secondly by silicates (i.e., serpentine group mineral...
Conference Paper
Full-text available
Lawsonite (lws) blueschists and eclogites are expected to be the prevailing lithotypes developing during deep subduction of the oceanic crust and should therefore be quite abundant in exhumed subduction complexes. Nevertheless, lws-bearing eclogites have been described only from few localities in the world. Moreover the occurrence of lws- bearing h...
Conference Paper
Full-text available
Serpentine soils, formed from ultramafic bedrocks, play a primary environmental role due to low content of essential elements (P, K, and N), high content of ecotoxic metals (Cr, Co, Ni), and low Ca/Mg ratio. In this multidisciplinary study, we combine mineralogical, petrological and chemical investigations on several soil profiles deriving from ult...
Conference Paper
Full-text available
In this work, we examine a thrust fault developed within carbonated ultramafites of the Voltri Massif (Ligurian Alps), exposed along the Bisciarelle stream. Different rock types characterise the damage zone of this fault, namely carbonate and chalcedony-quartz veins at the footwall and intensely fractured and hydrothermally altered lherzolite at th...
Conference Paper
Polyphase structural evolution of northern Victoria Land (Antarctica) in the light of Gondwana break-up and the development of the Australia-New Zealand-Antarctica plate fragments. Structural and geophysical investigations.
Conference Paper
Full-text available
In this work we examine thrust faults, developed inside the ultramafic rocks (peridotite and serpentinite) of the Voltri Massif (Ligurian Alps, Italy), and accompanied by unusual carbonate-coated grains fault rocks. In the footwall of the studied faults, the damage zones (up to 10 m thick) are characterized by different types of fault rocks, syntec...
Article
A blueschist-facies mylonite crops out between two high-pressure tectono-metamorphic oceanic units of the Ligurian Western Alps (NW Italy). This mylonitic metabasite is made up of alternating layers with different grain size and proportions of blueschist-facies minerals. The mylonitic foliation formed at metamorphic conditions of T = 220–310 °C and...
Conference Paper
Full-text available
We are presenting new magnetic data of a high-resolution aeromagnetic survey over the Lanterman Range in North Victoria Land, Antarctica. The survey was carried out during GANOVEX XI (German Antarctic North Victoria Land Expedition) led by BGR in the 2015/16 Austral summer. A helicopter based survey with a setup of 1 – 2 km line spacing and 10 km t...
Article
Full-text available
Oblique subduction zones are complex settings where the simultaneous action of trench- normal and trench-parallel components of convergence could produce heterogeneous deformational pattern of the upper plate and affect the accretional/erosional behaviour of the plate margin. 3D thermomechanical numerical models highlight some processes occurring i...
Article
Several recent studies have documented that reactions between melt and crystal mush in primitive gabbroic rocks (via reactive porous flow) have an important control in the formation of the lower oceanic crust and the evolution of MORBs. In this context, olivine-rich rocks can form either by fractional crystallization of primitive melts or by open s...
Article
Much of the long-term carbon cycle in solid earth occurs in subduction zones, where processes of devolatilization, partial melting of carbonated rocks, and dissolution of carbonate minerals lead to the return of CO2 to the atmosphere via volcanic degassing. Release of COH fluids from hydrous and carbonate minerals influences C recycling and magmati...
Conference Paper
Full-text available
Shallow crustal processes occurring during seismic slips and generating fracture networks are of great interest due to their complex interplay with a spectrum of other geological processes . Our study focuses on faults with peculiar core textures, similar to those of "cockade breccia" (Genna et al., 1996) and "clast cortex grains" (Rempe et al., 2...
Article
The Alpine and Apennine belts come into contact in Central Ligu ria, in an extremely complex structural arrangement; this junction is usually referred to as the Ligurian Knot. The geological mapping for the 213–230 “Genova” and 212 “Spigno Monferrato” 1:50,000 quadrangles necessitated the updating of the stratigraphic, structural and metamorphic de...