MOTTANA ANNIBALE | Università Roma Tre (original) (raw)

Books by MOTTANA ANNIBALE

ANNIBALE MOTTANA, 2023

Dante mentioned eight precious stones in his Commedia, but three of them are different than those... more Dante mentioned eight precious stones in his Commedia, but three of them are different than those having the same name now. The nominal change took place between 16th and 18th centuries by mineralogists of German and Swedish origin who had no interest on the ancient named inherited by the Italian poet.

Accademia Nazionale delle Scienze detta dei XL, 2020

A historical survey about the interaction among three science academies existing in Italy during ... more A historical survey about the interaction among three science academies existing in Italy during Risorgimento (1790-1875). The Società Italians Delle Scienze, founded in Verona 1782, turned first into Institut des Science of Napoleon' Kingdom of Italy till 1816, then moved to Modena to 1875, moved in that year to Rome as independent because it had refused to become the science branch of the new Academy of the Kingdom of Italy. The Academy of Nuovi Lincei, founded in Rome 1801, then in 1847 turned into a Pontifical one, remained as such after 1870 when Italy unified, but a minor group led by Giuseppe Ponzi decided to split away and adhere to the Royal Lincei Academy, which Quintino Sella had recognized by the King of Italy in 1875 after incorporating the moral science class in addition to the natural science class. In 1875, then, Rome had three independent academies: a private, an official, and a pontifical one, all contributing to the development of the newly united Italy.

A review of data gathered during the 1966-1992 research both by the author and by others, includi... more A review of data gathered during the 1966-1992 research both by the author and by others, including those utilizing omphacite crystals supplied by the author.

Papers by MOTTANA ANNIBALE

How Rome failed to move from "the city of Dogma" to become "the city of Science" in the short tim... more How Rome failed to move from "the city of Dogma" to become "the city of Science" in the short time between 1870 and 1880, when Quintino Sella and Pius IX were the driving men for the change.

Atti Accademia dei Lincei, 2024

Atti della Accademia Nazionale dei Lincei. Rendiconti Lincei. Scienze fisiche e naturali, Dec 1, 1991

Infrared spectra of sodalites from Vetralla and Bancroft are compared to simulated spectra calcul... more Infrared spectra of sodalites from Vetralla and Bancroft are compared to simulated spectra calculated from the available structural data and from empirical force constants applied to a simplified part-central-force potential-energy model. Calculation gives 18 vibrational modes including the 370 cm-1 mode observed by other authors in Raman spectra only. Increasing Si-O stretching constant implies variation of 3 high-frequency modes. The

Periodico Di Mineralogia, 1983

Spectroscopic methods in mineralogy

The number of mineral species known to date rapidly approaches 4000, and yet they represent but a... more The number of mineral species known to date rapidly approaches 4000, and yet they represent but a small fraction of all the known inorganic and organic compounds. Nevertheless, minerals represent an ideal field of activity for X-ray absorption spectroscopy (XAS), because the investigation of their crystal-chemical peculiarities takes an enormous advantage of the property of this method of being atom-selective, even in the presence of a wide range of competing atoms located in similar structural environments. As a matter of fact, XAS on minerals proved to be a useful probing method as early as for W. Kossel's pioneer studies of in the 1930's, just after the fine structures occurring at and near the absorption edge had been first detected. However, XAS did not really become consolidated in mineral studies until the 1980's, when synchrotron sources became available to users. A concise, but complete review of the historical and recent applications of XAS to minerals and to their analogues synthesized for geological/geophysical purposes i.e., to better understand the mechanisms by which the Earth evolves, is here given. Special reference will be made to transition metals (Ca, Ti, Cr, Mn, Fe, Ni) which absorb in the hard X-ray spectral region (> 4 KeV) and to the geologicallysignificant elements (O, Na, Mg, Al, Si, S and K) which absorb in the soft X-ray region (500-4000 eV).

Mineralogical Magazine, 1986

Ranciéite occurs as stalactites coated with 10 Å halloysite in an open fissure crossing the Mazza... more Ranciéite occurs as stalactites coated with 10 Å halloysite in an open fissure crossing the Mazzano Romano Mn-impregnated tuffs. Chemical analysis (by EMPA) gave: MnO2 71.9, CaO 6.11, BaO 2.85, MgO 1.53, K2O 0.86, Na2O 0.53 plus minor oxides, total 85.07% (average of sixteen spots). Thermal analysis gave a total loss of ∼ 20 wt% of which 13.9% can be attributed to bonded water. The resulting formula contains 4H2O rather than 3H2O, as in most published references. The loss of water leads to the formation of hausmannite plus unidentified phases, after a complex sequence of reactions. Dehydration is directly followed by an X-ray amorphous stage. The X-ray pattern and IR spectrum indicate a poor structural order, in agreement with the likely formation conditions of the Mazzano ranciéite at atmospheric pressure and very low temperatures (less than 50 °C), from cold water percolating through the main Mn deposit.

European Journal of Mineralogy, Feb 13, 1992

The reliability of silica geothermometers for different natural mineral assemblages and fluid com... more The reliability of silica geothermometers for different natural mineral assemblages and fluid compositions has been experimentally assessed in the P, T range 185-435 bar, 100-350°C using the Barnes hydrothermal kinetic apparatus. A series of metasediments (two phyllosilicate-rich schists and one dolomitic carbonate rock) of the Latium-Tuscany geothermal area (central Italy) and fluids of pure and sea-water compositions were used at starting materials. Experiments with the carbonate rock indicate that silica geothermometry is poorly applicable, probably because of the finite character of silica in the starting material. Experiments with feldspar-free, phyllosilicate-rich schists indicate that both the rock chemistry (mainly the redox ratio) and the fluid composition affect silica solubility at any given P-T. Oxidized assemblages in general favour higher silica solubilities. The effect of rock composition is greatly diminished when saline fluids are used. The observed solubility-temperature relationships are assessed against commonly used experimental and empirical geothermometers, giving a best approximation to the chalcedony geothermometer, followed by the quartz - no steam loss geothermometer. Three new silica geothermometers were calibrated : two for oxidized and reduced silicate assemblages and pure water fluids (EST-o and EST-r, respectively) and one for a variety of silicate assemblages interacting with saline (marine) fluids (EST-m). These geothermometers are effective for the whole experimentally investigated range (100-350°C). The new geothermometers have been tested for various geothermal areas and found to give accurate results. Combined equations allow a reliable chemical geothermometry over the temperature range 25-350°C, provided the redox conditions of the reservoir and the composition of the initial fluid are approximately known

European geosciences union general assembly, 2007

Fabio Bellatreccia 1, Fernando Camara 2, Luca Bindi 3, Giancarlo Della Ventura 1, Annibale Mottan... more Fabio Bellatreccia 1, Fernando Camara 2, Luca Bindi 3, Giancarlo Della Ventura 1, Annibale Mottana 1, Mickey E. Gunter 4 e Marco Sebastiani 5. 1 Dipartimento di Scienze Geologiche, Universita degli Studi Roma Tre, Largo S. L. Murialdo 1, I00146 Roma; e-mail: bellatre@uniroma3.it 2 CNR Istituto di Geoscienze e Georisorse, Via Ferrata 1, I-27100 Pavia 3 Museo di Storia Naturale, Sezione di Mineralogia, Universita degli Studi di Firenze, Via La Pira 4, I-50121 Firenze 4 Departement of Geological Sciences, University of Idaho, Moscow Idaho, 83844-3022, U.S.A. 5 Dipartimento di Ingegneria Meccanica e Industriale, Universita Roma Tre, Via della Vasca Navale 79, I-00146 Roma

ANNIBALE MOTTANA, 2023

Dante mentioned eight precious stones in his Commedia, but three of them are different than those... more Dante mentioned eight precious stones in his Commedia, but three of them are different than those having the same name now. The nominal change took place between 16th and 18th centuries by mineralogists of German and Swedish origin who had no interest on the ancient named inherited by the Italian poet.

Accademia Nazionale delle Scienze detta dei XL, 2020

A historical survey about the interaction among three science academies existing in Italy during ... more A historical survey about the interaction among three science academies existing in Italy during Risorgimento (1790-1875). The Società Italians Delle Scienze, founded in Verona 1782, turned first into Institut des Science of Napoleon' Kingdom of Italy till 1816, then moved to Modena to 1875, moved in that year to Rome as independent because it had refused to become the science branch of the new Academy of the Kingdom of Italy. The Academy of Nuovi Lincei, founded in Rome 1801, then in 1847 turned into a Pontifical one, remained as such after 1870 when Italy unified, but a minor group led by Giuseppe Ponzi decided to split away and adhere to the Royal Lincei Academy, which Quintino Sella had recognized by the King of Italy in 1875 after incorporating the moral science class in addition to the natural science class. In 1875, then, Rome had three independent academies: a private, an official, and a pontifical one, all contributing to the development of the newly united Italy.

A review of data gathered during the 1966-1992 research both by the author and by others, includi... more A review of data gathered during the 1966-1992 research both by the author and by others, including those utilizing omphacite crystals supplied by the author.

How Rome failed to move from "the city of Dogma" to become "the city of Science" in the short tim... more How Rome failed to move from "the city of Dogma" to become "the city of Science" in the short time between 1870 and 1880, when Quintino Sella and Pius IX were the driving men for the change.

Atti Accademia dei Lincei, 2024

Atti della Accademia Nazionale dei Lincei. Rendiconti Lincei. Scienze fisiche e naturali, Dec 1, 1991

Infrared spectra of sodalites from Vetralla and Bancroft are compared to simulated spectra calcul... more Infrared spectra of sodalites from Vetralla and Bancroft are compared to simulated spectra calculated from the available structural data and from empirical force constants applied to a simplified part-central-force potential-energy model. Calculation gives 18 vibrational modes including the 370 cm-1 mode observed by other authors in Raman spectra only. Increasing Si-O stretching constant implies variation of 3 high-frequency modes. The

Periodico Di Mineralogia, 1983

Spectroscopic methods in mineralogy

The number of mineral species known to date rapidly approaches 4000, and yet they represent but a... more The number of mineral species known to date rapidly approaches 4000, and yet they represent but a small fraction of all the known inorganic and organic compounds. Nevertheless, minerals represent an ideal field of activity for X-ray absorption spectroscopy (XAS), because the investigation of their crystal-chemical peculiarities takes an enormous advantage of the property of this method of being atom-selective, even in the presence of a wide range of competing atoms located in similar structural environments. As a matter of fact, XAS on minerals proved to be a useful probing method as early as for W. Kossel's pioneer studies of in the 1930's, just after the fine structures occurring at and near the absorption edge had been first detected. However, XAS did not really become consolidated in mineral studies until the 1980's, when synchrotron sources became available to users. A concise, but complete review of the historical and recent applications of XAS to minerals and to their analogues synthesized for geological/geophysical purposes i.e., to better understand the mechanisms by which the Earth evolves, is here given. Special reference will be made to transition metals (Ca, Ti, Cr, Mn, Fe, Ni) which absorb in the hard X-ray spectral region (> 4 KeV) and to the geologicallysignificant elements (O, Na, Mg, Al, Si, S and K) which absorb in the soft X-ray region (500-4000 eV).

Mineralogical Magazine, 1986

Ranciéite occurs as stalactites coated with 10 Å halloysite in an open fissure crossing the Mazza... more Ranciéite occurs as stalactites coated with 10 Å halloysite in an open fissure crossing the Mazzano Romano Mn-impregnated tuffs. Chemical analysis (by EMPA) gave: MnO2 71.9, CaO 6.11, BaO 2.85, MgO 1.53, K2O 0.86, Na2O 0.53 plus minor oxides, total 85.07% (average of sixteen spots). Thermal analysis gave a total loss of ∼ 20 wt% of which 13.9% can be attributed to bonded water. The resulting formula contains 4H2O rather than 3H2O, as in most published references. The loss of water leads to the formation of hausmannite plus unidentified phases, after a complex sequence of reactions. Dehydration is directly followed by an X-ray amorphous stage. The X-ray pattern and IR spectrum indicate a poor structural order, in agreement with the likely formation conditions of the Mazzano ranciéite at atmospheric pressure and very low temperatures (less than 50 °C), from cold water percolating through the main Mn deposit.

European Journal of Mineralogy, Feb 13, 1992

The reliability of silica geothermometers for different natural mineral assemblages and fluid com... more The reliability of silica geothermometers for different natural mineral assemblages and fluid compositions has been experimentally assessed in the P, T range 185-435 bar, 100-350°C using the Barnes hydrothermal kinetic apparatus. A series of metasediments (two phyllosilicate-rich schists and one dolomitic carbonate rock) of the Latium-Tuscany geothermal area (central Italy) and fluids of pure and sea-water compositions were used at starting materials. Experiments with the carbonate rock indicate that silica geothermometry is poorly applicable, probably because of the finite character of silica in the starting material. Experiments with feldspar-free, phyllosilicate-rich schists indicate that both the rock chemistry (mainly the redox ratio) and the fluid composition affect silica solubility at any given P-T. Oxidized assemblages in general favour higher silica solubilities. The effect of rock composition is greatly diminished when saline fluids are used. The observed solubility-temperature relationships are assessed against commonly used experimental and empirical geothermometers, giving a best approximation to the chalcedony geothermometer, followed by the quartz - no steam loss geothermometer. Three new silica geothermometers were calibrated : two for oxidized and reduced silicate assemblages and pure water fluids (EST-o and EST-r, respectively) and one for a variety of silicate assemblages interacting with saline (marine) fluids (EST-m). These geothermometers are effective for the whole experimentally investigated range (100-350°C). The new geothermometers have been tested for various geothermal areas and found to give accurate results. Combined equations allow a reliable chemical geothermometry over the temperature range 25-350°C, provided the redox conditions of the reservoir and the composition of the initial fluid are approximately known

European geosciences union general assembly, 2007

Fabio Bellatreccia 1, Fernando Camara 2, Luca Bindi 3, Giancarlo Della Ventura 1, Annibale Mottan... more Fabio Bellatreccia 1, Fernando Camara 2, Luca Bindi 3, Giancarlo Della Ventura 1, Annibale Mottana 1, Mickey E. Gunter 4 e Marco Sebastiani 5. 1 Dipartimento di Scienze Geologiche, Universita degli Studi Roma Tre, Largo S. L. Murialdo 1, I00146 Roma; e-mail: bellatre@uniroma3.it 2 CNR Istituto di Geoscienze e Georisorse, Via Ferrata 1, I-27100 Pavia 3 Museo di Storia Naturale, Sezione di Mineralogia, Universita degli Studi di Firenze, Via La Pira 4, I-50121 Firenze 4 Departement of Geological Sciences, University of Idaho, Moscow Idaho, 83844-3022, U.S.A. 5 Dipartimento di Ingegneria Meccanica e Industriale, Universita Roma Tre, Via della Vasca Navale 79, I-00146 Roma

Atti Acc.Naz. Lincei, 2020

The transformation of Rome from "Dogma city" to "Science city" is described by recording how the ... more The transformation of Rome from "Dogma city" to "Science city" is described by recording how the University was changed substantially, the Jesuit Collegium continue for some time till suppression, and the research activity of two exemples of scientist (Baldassarre Boncompagni Ludovisi, a very rich noble mathematician, and Giuseppe Ponzi, a geologist from low extraction) behaved to adapt to the change of regime from Pope to King.

Editrice ETS, 2023

A book in honour of Lucia Tomasi Tongiorgi, titled "In the garden of the arts and sciences" and c... more A book in honour of Lucia Tomasi Tongiorgi, titled "In the garden of the arts and sciences" and consisting of 23 articles coordinated by Alessandro Tosi and Massimiliano Rossi is presented. It documents the ties between gardening and figuring the countryside in Tuscany (Pisa and Florence, mainly) between early Renaissance and mid Nineteenth century.