220 research outputs found
Use of commercial biochar for river water purification in the Lazio region, Italy
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Cap rock efficiency of geothermal systems in fold-and-thrust belts: Evidence from paleo-thermal and structural analyses in Rosario de La Frontera geothermal area (NW Argentina)
Cap rock characterization of geothermal systems is often neglected despite fracturing may reduce its efficiency and favours fluid migration. We investigated the siliciclastic cap rock of Rosario de La Frontera geothermal system (NW Argentina) in order to assess its quality as a function of fracture patterns and related thermal alteration. Paleothermal investigations (XRD on fine-grained fraction of sediments, organic matter optical analysis and fluid inclusions on veins) and 1D thermal modelling allowed us to distinguish the thermal fingerprint associated to sedimentary burial from that related to fluid migration. The geothermal system is hosted in a Neogene N-S anticline dissected by high angle NNW- and ENE-striking faults. Its cap rock can be grouped into two quality categories: âą rocks acting as good insulators, deformed by NNWâSSE and EâW shear fractures, NNE-SSW gypsum- and N-S-striking calcite-filled veins that developed during the initial stage of anticline growth. Maximum paleo-temperatures (< 60 °C) were experienced during deposition to folding phases.âą rocks acting as bad insulators, deformed by NNW-SSE fault planes and NNW- and WNW-striking sets of fractures associated to late transpressive kinematics. Maximum paleo-temperatures higher than about 115 °C are linked to fluid migration from the reservoir to surface (with a reservoir top at maximum depths of 2.5 km) along fault damage zones.This multi-method approach turned out to be particularly useful to trace the main pathways of hot fluids and can be applied in blind geothermal systems where either subsurface data are scarce or surface thermal anomalies are lacking.Fil: Maffucci, R.. Universita Degli Studi Della Tuscia; Italia. Universita Degli Studi Roma Tre; ItaliaFil: Corrado, Sveva. Universita Degli Studi Roma Tre; ItaliaFil: Aldega, L.. Instituto de Investigaciones Universitarias Roma la Sapienza; ItaliaFil: Bigi, S.. Instituto de Investigaciones Universitarias Roma la Sapienza; ItaliaFil: Chiodi, Agostina Laura. Consejo Nacional de Investigaciones CientĂficas y TĂ©cnicas. Centro CientĂfico TecnolĂłgico Conicet - Salta. Instituto de Investigaciones en EnergĂa no Convencional. Universidad Nacional de Salta. Facultad de Ciencias Exactas. Departamento de FĂsica. Instituto de Investigaciones en EnergĂa no Convencional; ArgentinaFil: Di Paolo, L.. Eni E&P Division; ItaliaFil: Giordano, G.. Universita Degli Studi Roma Tre; ItaliaFil: Invernizzi, C.. Universita Degli Di Camerino; Itali
A Predictive Model for Maceral Discrimination by Means of Raman Spectra on Dispersed Organic Matter : A Case Study from the Carpathian Fold-and-Thrust Belt (Ukraine)
Acknowledgments: Jankowski L., Mazzoli S., Szaniawski R., and Zattin M. are warmly ackowledged for their help in the sampling campaign and stimulating discussions on Carphatians geology. D. Grigo is kindly thanked for constant encouragement during the work and fruitful discussions on thermal modelling. ENI is acknowledged for pyrolysis data (already presented in the first Authorâs PhD thesis) produced in Bolgiano Laboratories and for sponsoring the sampling campaign. The Grant of Excellence Departments, MIUR (ARTICOLO 1, COMMI 314â337 LEGGE 232/2016), is gratefully acknowledged.Peer reviewedPublisher PD
Automatic organofacies identification by means of Machine Learning on Raman spectra
Funding Information: IFP Energies nouvelles (France) is warmly acknowledgment for kindly providing access to samples, laboratory facilities and unpublished database. Dr. Amalia Spina and Prof. Simonetta Cirilli from the University of Perugia are warmly acknowledged for the high-quality kerogen isolate extraction. This research was funded by: MIUR grants to Roma Tre PhD School in Earth Sciences (XXXIV doctoral cycle, 2018â2021) and IFP Energies nouvelles PhD program. Publisher Copyright: © 2023 The AuthorsPeer reviewedPublisher PD
Preliminary Structural Interpretation of a Seismic Profile across the Frontal Sector of the Eastern Achara-Trialeti Fold-and-Thrust Belt
This paper presents a new structural model for the frontal part of the eastern Achara-Trialeti fold- and-thrust belt based on the interpretation of a seismic reflection profile across the retro-wedge of the Lesser Caucasus orogen. The structural details from the interpreted seismic reflection profile provide new data on the deep structure of the frontal part of the eastern Achara-Trialeti fold-and- thrust belt. The seismic reflection profile crosses, from south to north, the Varketili anticline, the Ormoiani syncline, and a south-directed imbricate thrust system. Seismic interpretation is constrained by surface geology, exploration wells, and application of theoretical models on fault- related folding. Seismic reflection data interpretation reveals the interaction between south- and north-vergent fold-thrust structures and north-vergent duplexes at depth. The duplexes are well imaged on the seismic profile and constituted by a lower and an upper duplex system. The lower duplex involves the Cretaceous-Middle Eocene sequence, whereas the upper duplex affects the Upper Eocene strata
The thermal imprint of continental breakup during the formation of the South China Sea
This research used data provided by the International Ocean Discovery Program (IODP).We thanks the participants to IODP Expedition 367-368 as well as the captains and crew of the Joides Resolution. Seismic sections originate from the IODP Expedition 367/368/368X proceeding volume. Platte River Associates, Inc is thanked for providing an academic licence of BasinMod 2D. We acknowledge IODP France and ECORD for the support. Funding for this research was provided by Total SA R&D (J.N. Ferry). SAB gratefully acknowledges NERC award NE/R002576/1; Measuring Rates of Weathered Petroleum Accumulation, South China Sea.Peer reviewedPublisher PD
Paleoâthermal constraints on the origin of native diagenetic sulfur in the Messinian evaporites : The Northern Apennines foreland basin case study (Italy)
This work has benefited from the equipment and frame-work of the COMP- HUB Initiative (University of Parma), funded by the Department of Excellence programme of the Italian Ministry for Education, University and Research (MIUR, 2018- 2022). This work has benefited from University of Roma Tre MIUR funds for the Department of Excellence. This work has benefited from the University of Parma FIL2016- 2018 responsible Professor Marco Roveri, University of Parma FIL2016- 2018 responsible Professor Vinicio Manzi, MIUR PhD scholarship 2016- 2019. Platte River Associates, Inc is kindly acknowledged for providing BasinMod2DÂź software for research purposes. Massimo Rossi (ENI S.p.A., Milano, Italy) is kindly acknowledged for his review of the manuscriptPeer reviewedPublisher PD
La Candelaria Ridge (NW Argentina) as a natural lab for the exploration of the geothermal system of Rosario de La Frontera: Methods and preliminary results
Within the scientific framework recently proposed by C.U.I.A. (Consorzio Universitario Italiano per lâArgentina) for the development of applied researches on the Argentina territory, several research groups, belonging to selected Italian and Argentina Universities, converged in the last year on the research line devoted to the âSustainable development of future townsâ. This contribution focuses on the preliminary results achieved by this collaboration among the Universities of Camerino, Jujuy, Roma Tre, Salta, Sapienza. The project focuses on the application of robust methodologies and the development of new ones to explore the geothermal potential of the area of Rosario de La Frontera (NW Argentina) located at the northern edge of La Candelaria Ridge, one of positively inverted structures cropping out between the provinces of Salta and Tucuman. It belongs to the Santa Barbara System of the Andes retro-wedge...Fil: Maffucci, R.. UniversitĂ Roma Tre III; ItaliaFil: Caffe, Pablo Jorge. Universidad Nacional de Jujuy. Instituto de GeologĂa Minera; Argentina. Consejo Nacional de Investigaciones CientĂficas y TĂ©cnicas. Centro CientĂfico TecnolĂłgico Conicet - Salta; ArgentinaFil: Corrado, Sveva. UniversitĂ Roma Tre III; ItaliaFil: Invernizzi, Ciro. UniversitĂ degli Studi di Camerino; ItaliaFil: Giordano, G.. UniversitĂ Roma Tre III; ItaliaFil: Pierantoni, Pablo. UniversitĂ degli Studi di Camerino; ItaliaFil: Viramonte, Jose Maria. Consejo Nacional de Investigaciones CientĂficas y TĂ©cnicas. Centro CientĂfico TecnolĂłgico Conicet - Salta; Argentina. Universidad Nacional de Salta. Facultad de Ciencias Naturales. Instituto Geonorte; Argentin
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