57 research outputs found
Inconstitucionalidade do artigo 1.790 do código civil e a proteção do companheiro
Analisa a sucessĂŁo hereditária do companheiro no ordenamento jurĂdico brasileiro, inicialmente conforme o tratamento conferido pelas Leis nÂş 8.971/1994 e 9.278/1996, em seguida de acordo com o artigo 1.790 do CĂłdigo Civil e, por fim, pelos recentes julgados do Supremo Tribunal Federal nos Recursos Extraordinários nÂş 878.694-MG e nÂş 646.721-RS. Há polĂŞmica doutrinária em que se indaga se o companheiro Ă© considerado herdeiro necessário, sobretudo, apĂłs decisĂŁo do STF sobre a inconstitucionalidade do artigo 1.790 do CĂłdigo Civil. Logo, pretende-se enfrentar as obscuridades e controvĂ©rsias sobre o assunto
Very slightly anomalous leakage of CO2, CH4 and radon along the main activated faults of the strong L'Aquila earthquake (Magnitude 6.3, Italy). Implications for risk assessment monitoring tools & public acceptance of CO2 and CH4 underground storage.
Abstract The 2009-2010 L'Aquila seismic sequence is still slightly occurring along the central Apenninic Belt (August 2010), spanning more than one year period. The main- shock (Mw 6.3) occurred on April 6th at 1:32 (UTC). The earthquake was destructive and caused among 300 casualties. The hypocenter has been located at 42.35 °N, 13.38° at a depth of around 10 km. The main shock was preceded by a long seismic sequence starting several months before (i.e., March, 30, 2009 with Mw 4.1; April, 5 with Mw 3.9 and Mw 3.5, a few hours before the main shock). A lot of evidences stress the role of deep fluids pore-pressure evolution–possibly CO2 or brines - as occurred in the past, along seismically activated segments in Apennines. Our geochemical group started to survey the seismically activated area soon after the main-shock, by sampling around 1000 soil gas points and around 80 groundwater points (springs and wells, sampled on monthly basis still ongoing), to help in understanding the activated fault segments geometry and behaviour, as well as leakage patterns at surface (CO2, CH4, Radon and other geogas as He, H2, N2, H2S, O2, etc …), in the main sector of the activated seismic sequence, not far from a deep natural CO2 reservoir underground (termomethamorphic CO2 from carbonate diagenesis), degassing at surface only over the Cotilia-Canetra area, 20 km NW from the seismically activated area. The work highlighted that geochemical measurements on soils are very powerful to discriminate the activated seismogenic segments at surface, their jointing belt, as well as co-seismic depocenter of deformation. Mostly where the measured "threshold" magnitude of earthquakes (around 6), involve that the superficial effects could be absent or masked, our geochemical method demonstrated to be strategic, and we wish to use these methods in CO2 analogues/ CO2 reservoir studies abroad, after done in Weyburn. The highlighted geochemical - slight but clear anomalies are, in any case, not dangerous for the human health and keep away the fear around the CO2–CH4 bursts or explosions during strong earthquakes, as the L'Aquila one, when these gases are stored naturally/industrially underground in the vicinity (1–2 km deep). These findings are not new for these kind of Italian seismically activated faults and are very useful for the CO2–CH4 geological storage public acceptance: Not necessarily (rarely or never) these geogas escape abruptly from underground along strongly activated faults
The synthesis of decades of groundwater knowledge: the new Hydrogeological Map of Rome
This paper describes the contents and the path taken to get to the new Hydrogeological map of the City of Rome. The map, which is the result of a combination of "expert elaborations" and GIS processing performed using the most recent available data, extends to the entire municipality (1285 km2) and is based on both the most recent scientific studies on groundwater field and new survey activities carried out in order to fill the data gaps in several areas of the examined territory. The work represents also an example of inter-institutional collaboration between government agencies, research institutes and universities
Continuous/discrete geochemical monitoring of CO2 Natural Analogues and of Diffuse Degassing Structures (DDS): hints for CO2 storage sites geochemical monitoring protocol
Abstract Italy is one of the most promising prone areas to study the CO 2 behavior underground, the caprock integrity to the CO 2 leakage, mostly in presence of pervious/geochemically active faults, due to a wide availability of CO 2 rich reservoirs at a depth between 1 and 10 km, as highlighted by recent literature. These deep CO 2 reservoirs generate at least 200 leakage areas at surface throughout Italy which have been defined "Diffuse Degassing Structures" (DDS) by INGV. These are widely studied by INGV institutionally by a long term convention with the Civil Protection Department (DPC) with the aim to catalog, monitor and assess the Natural Gas Hazard (NGH, namely the probability of an area to become a site of poisonous peri-volcanic gas exhalation from soils). More than 150 researcher of INGV are involved in monitoring areas affected by the CO 2 presence underground and at surface, by continuous monitoring on-line networks (around 40 stations throughout Italy, including the Etna area, Aeolian Islands, Umbria region, Piemonte region, etc.) and discretely (9 groups of research were involved in the last years to localize, define and monitor almost all the DDSs in Italy), by sampling and analyzing chemical and isotopic compounds, useful to discriminate the origin, evolution and natural gas hazards of the examined DDS. In this paper, we will discuss some DDS catalogued and studied by a Rome INGV Research Unit (UR 11) which focused its work in Central Italy, throughout different DDS, also in relation to the diverse seismotectonic settings, to discover buried faults as possible gas leakage pathways, mostly if they are "geochemically" activated. In particular we discuss, among the discrete monitoring techniques exploited by INGV, soil gas surveying, which consists in a collection of gas samples from the soil zone not saturated (dry zone) to measure the geogas gaseous species both in fluxes (CO 2 , CH 4 , 222 Rn) and in concentration (He, H 2 , H 2 S, helium, hydrogen, CO 2 , CH 4 , 222 Rn), that permeate the soil pores. The total CO 2 flux budget was calculated as "baseline" degassing rate of these " CO 2 analogues". A good discrete areal monitoring is prerequisite to design sound continuous monitoring network to monitor CO 2 related parameters in liquid/gas phases, to review the protocol of the Annex II of the European Directivity on CCS
Study of natural analogues for the comprehension of gas migration mechanism
Soil gas anomalies are useful to recognize influences of surface features on natural gas migration. The study of the association of different gases (with different origin and physical/chemical behavior), the collection of a large number of samples during periods of stable meteorological and soil moisture conditions (e.g., during dry season) and the use of appropriate statistical treatment of data are fundamental in the comprehension of gas migration mechanism.
Gas geochemistry has been proven to be a reliable and simple technique to apply, at different scales, to many geological scenarios [Quattrocchi et al. 2001; Baubron et al. 2002; De Gregorio et al. 2002; Pizzino et al. 2002; Lewicki et al. 2003; Voltattorni et al. 2009; Lombardi and Voltattorni, 2010]. The study of spatial distribution of soil gas anomalies, at the surface, can give important and interesting information on the origin and processes involving deep and superficial gas species. This information can be applied and studied in different frameworks, for example:
1. geological sequestration of anthropogenic CO2 to reduce the amount of greenhouse gases released to the atmosphere. Natural gas emissions represent extremely attractive surrogates for the study and prediction of the possible consequences of leakage from geological sequestration sites of anthropogenic CO2 (i.e., the return to surface potentially causing localized environmental problems).
2. radionuclide migration in the study of high-level radioactive-waste isolation systems. The main approach is to study the natural migration of radiogenic particles or elements throughout clay formations that are considered an excellent isolation and sealing material due to their ability to immobilize water and other substance over geological timescales
Very slightly anomalous leakage of CO2, CH4 and radon along the main activated faults of the strong L’Aquila earthquake (Magnitude 6.3, Italy). Implications for risk assessment monitoring tools & public acceptance of CO2 and CH4 underground storage.
The 2009-2010 L'Aquila seismic sequence is still slightly occurring along the central
Apenninic Belt (August 2010), spanning more than one year period. The main- shock
(Mw 6.3) occurred on April 6th at 1:32 (UTC). The earthquake was destructive and caused
among 300 casualties. The hypocenter has been located at 42.35°N, 13.38° at a depth of
around 10 km. The main shock was preceded by a long seismic sequence starting several
months before (i.e., March, 30, 2009 with Mw 4.1; April, 5 with Mw 3.9 and Mw 3.5, a
few hours before the main shock). A lot of evidences stress the role of deep fluids porepressure
evolution – possibly CO2 or brines - as occurred in the past, along seismically
activated segments in Apennines. Our geochemical group started to survey the
seismically activated area soon after the main-shock, by sampling around 1000 soil gas
points and around 80 groundwater points (springs and wells, sampled on monthly basis
still ongoing), to help in understanding the activated fault segments geometry and
behaviour, as well as leakage patterns at surface (CO2, CH4, Radon and other geogas as
He, H2, N2, H2S, O2, etc...), in the main sector of the activated seismic sequence, not far
from a deep natural CO2 reservoir underground (termomethamorphic CO2 from
carbonate diagenesis), degassing at surface only over the Cotilia-Canetra area, 20 km
NW from the seismically activated area.
The work highlighted that geochemical measurements on soils are very powerful to
discriminate the activated seismogenic segments at surface, their jointing belt, as well as
co-seismic depocenter of deformation. Mostly where the measured “threshold”
magnitude of earthquakes (around 6), involve that the superficial effects could be absent or masked, our geochemical method demonstrated to be strategic, and we wish to use
these methods in CO2 analogues/CO2 reservoir studies abroad, after done in Weyburn.
The highlighted geochemical -slight but clear- anomalies are, in any case, not dangerous
for the human health and keep away the fear around the CO2-CH4 bursts or explosions
during strong earthquakes, as the L'Aquila one, when these gases are stored
naturally/industrially underground in the vicinity (1-2 km deep). These findings are not
new for these kind of Italian seismically activated faults and are very useful for the CO2-
CH4 geological storage public acceptance: not necessarily (rarely or never) these geogas
escape abruptly from underground along strongly activated faults
The INGV science theatre experiences
Since September 2008, the Istituto Nazionale di Geofisca e Vulcanologia in Rome has started to experiment science theatre as an innovative tool to promote seismic risk awareness and earth education. Up to now two projects have been implemented within the Laboratorio di Didattica e Divulgazione Scientifica. The first one, more traditional, involving pupils of the primary school was devoted to promote seismic risk and earthquake education among children aged 6-10. The Sicilian “Colapesce” tale was rewritten and readapted to commemorate the 100 years from 1908 Messina Earthquake, to be performed in a school theatre by pupils (II and IV classes Scuola Primaria Federico Di Donato, Rome). It was as well an experiment of science without frontiers for the presence of schoolmates from different countries (Asia, Africa, South America, East Europe and Italy). The second was a pilot-project developed in collaboration with Ente Parco dei Castelli Romani and concerning the possibility to establish in the future an Ecomuseum in one of the Lazio Region areas rich of natural landscapes and history. The students of two classrooms of the Mancinelli and Falconi Institute in Velletri (III Classical Lyceum and III Socio-Pedagogical Lyceum ), aged 16, chose an itinerary in the volcanic-origin area around the Nemi Lake to be developed in three items: the Roman Ships Museum; The lake itself; and the Diana Nemorensis Temple’s ruins. The final goal was interpreting the territory with the help of scenic actions. It was a sort of opened-air theatre where history, legends and their historical figures - mainly Caligula and the Goddess Diana - described the area from the different points of view: geological, historical, naturalistic and even gastronomic. Both the projects have been evaluated, but in the second case, one of the two classrooms, being a Socio-Pedagogical Lyceum, was involved in the evaluation process under the supervision of Ingv Didactic Lab. Results from both projects, and a comparison between the two will be shown
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