The eruption of Vesuvius of 79 AD caused extensive destructions all over the Campanian area, engulfing the cities of Pompeii, Herculaneum, Oplonti and Stabiae.The eruption followed a long quiescence period and the i...The eruption of Vesuvius of 79 AD caused extensive destructions all over the Campanian area, engulfing the cities of Pompeii, Herculaneum, Oplonti and Stabiae.The eruption followed a long quiescence period and the inhabitants of the area were surprised by the volcanic events. The first part of the eruption was characterized by a widespread dispersal of pumices from a high erup-tive column. The second part of the eruption, character-ized by pyroclastic flows emplacement, caused the major damages with extensive life losses in most of the towns surrounding the volcano. In Pompeii, the major casual-ties during the first phase resulted from roof collapses;during the second phase, people were killed either by physical trauma due to the kinetic energy of the flow or by suffucation because of the ash-rich atmosphere.展开更多
Plato’s grave柏拉图的坟墓In 79 AD,Mount Vesuvius covered the Herculaneum scrolls^(1).Scientists now use smart tools to read them,learning about Plato’s life,death at 81,and where he was buried^(2).This discovery tea...Plato’s grave柏拉图的坟墓In 79 AD,Mount Vesuvius covered the Herculaneum scrolls^(1).Scientists now use smart tools to read them,learning about Plato’s life,death at 81,and where he was buried^(2).This discovery teaches us more about the past.展开更多
The AD 1944 is the last vulcanian-effusive eruption of Vesuvius volcano. I have reviewed most of the major and volatile elements in order to better understand the eruptive dynamic of this hazardous volcano. These volc...The AD 1944 is the last vulcanian-effusive eruption of Vesuvius volcano. I have reviewed most of the major and volatile elements in order to better understand the eruptive dynamic of this hazardous volcano. These volcanic products were basically formed by at least two main petrogenetic mechanisms: 1) mixing, 2) crystal fractionation. Crystal fractionation plays a major role in the evolution of the volcanic products of the AD 1944 eruption. According to the major elements data, several fractionation lines can be employed. Volatile data are analyzed in sequence. Indeed, the volatile data allow an insight into the exsolution and degassing processes occur during the growth and eruption of the AD 1944 eruption. Some inferences are also made on the exsolution and degassing depth. The volatile data illustrate a sequential order of exsolution for the AD 1944 eruption: Cl-H2O-CO2-S and finally as volatile phase degassed fluorine. The eruption has not interacted with external water. An early exsolution of Cl in Cl-rich magmas is also confirmed by experimental and geological studies (3 - 4 Kbars) coinciding with the deep magma reservoir.展开更多
In this paper, an overview of an important feature in statistics field has shown： the stepwise multiple linear regression. Likewise, a link between stepwise multiple linear regression and earthquakes localization has...In this paper, an overview of an important feature in statistics field has shown： the stepwise multiple linear regression. Likewise, a link between stepwise multiple linear regression and earthquakes localization has been descripted. Precisely, the aim of this research is showing how stepwise multiple linear regression contributes to solution of earthquakes localization, describing its conditions of use in HYPO71PC, a software devoted to computation of seismic sources’ collocation. This aim is reached treating a concrete case, that is computation of earthquakes localization happening on Mount Vesuvius, Italy.展开更多
Ever since I was a child,the grandeur of geological phenomena has fascinated me.For hours I used to listen astonished to my grandfather telling me stories about the Vesuvius Volcano:he was from Naples and had personal...Ever since I was a child,the grandeur of geological phenomena has fascinated me.For hours I used to listen astonished to my grandfather telling me stories about the Vesuvius Volcano:he was from Naples and had personally experienced the destruction of the last eruption in 1944.I remember perfectly the fear and wonder I was feeling while he talked me,the sense of impotence and precariousness that,in my imagination,the population must have felt;that perception of living in a“dancing land”,as my grandfather defined Italy.Perceiving that the Earth is a“living”planet and the strength of its processes is that generates similar responses in every living being:that’s where my love for geology comes from.Over time my wish to contribute to the defence of the extraordinary beauty and extreme fragility of my country from natural risks grew so I gradually oriented my career towards the study of georisks and geohazards.In 2002,I participated in the seismic emergency activity in the Molise Region(South Italy).I arrived in the small village of S.Giuliano just a few hours after the earthquake that had destroyed a school,while the firefighters was still trying to extract 27 children buried under the rubble.展开更多
文摘The eruption of Vesuvius of 79 AD caused extensive destructions all over the Campanian area, engulfing the cities of Pompeii, Herculaneum, Oplonti and Stabiae.The eruption followed a long quiescence period and the inhabitants of the area were surprised by the volcanic events. The first part of the eruption was characterized by a widespread dispersal of pumices from a high erup-tive column. The second part of the eruption, character-ized by pyroclastic flows emplacement, caused the major damages with extensive life losses in most of the towns surrounding the volcano. In Pompeii, the major casual-ties during the first phase resulted from roof collapses;during the second phase, people were killed either by physical trauma due to the kinetic energy of the flow or by suffucation because of the ash-rich atmosphere.
文摘Plato’s grave柏拉图的坟墓In 79 AD,Mount Vesuvius covered the Herculaneum scrolls^(1).Scientists now use smart tools to read them,learning about Plato’s life,death at 81,and where he was buried^(2).This discovery teaches us more about the past.
文摘The AD 1944 is the last vulcanian-effusive eruption of Vesuvius volcano. I have reviewed most of the major and volatile elements in order to better understand the eruptive dynamic of this hazardous volcano. These volcanic products were basically formed by at least two main petrogenetic mechanisms: 1) mixing, 2) crystal fractionation. Crystal fractionation plays a major role in the evolution of the volcanic products of the AD 1944 eruption. According to the major elements data, several fractionation lines can be employed. Volatile data are analyzed in sequence. Indeed, the volatile data allow an insight into the exsolution and degassing processes occur during the growth and eruption of the AD 1944 eruption. Some inferences are also made on the exsolution and degassing depth. The volatile data illustrate a sequential order of exsolution for the AD 1944 eruption: Cl-H2O-CO2-S and finally as volatile phase degassed fluorine. The eruption has not interacted with external water. An early exsolution of Cl in Cl-rich magmas is also confirmed by experimental and geological studies (3 - 4 Kbars) coinciding with the deep magma reservoir.
文摘In this paper, an overview of an important feature in statistics field has shown： the stepwise multiple linear regression. Likewise, a link between stepwise multiple linear regression and earthquakes localization has been descripted. Precisely, the aim of this research is showing how stepwise multiple linear regression contributes to solution of earthquakes localization, describing its conditions of use in HYPO71PC, a software devoted to computation of seismic sources’ collocation. This aim is reached treating a concrete case, that is computation of earthquakes localization happening on Mount Vesuvius, Italy.
文摘Ever since I was a child,the grandeur of geological phenomena has fascinated me.For hours I used to listen astonished to my grandfather telling me stories about the Vesuvius Volcano:he was from Naples and had personally experienced the destruction of the last eruption in 1944.I remember perfectly the fear and wonder I was feeling while he talked me,the sense of impotence and precariousness that,in my imagination,the population must have felt;that perception of living in a“dancing land”,as my grandfather defined Italy.Perceiving that the Earth is a“living”planet and the strength of its processes is that generates similar responses in every living being:that’s where my love for geology comes from.Over time my wish to contribute to the defence of the extraordinary beauty and extreme fragility of my country from natural risks grew so I gradually oriented my career towards the study of georisks and geohazards.In 2002,I participated in the seismic emergency activity in the Molise Region(South Italy).I arrived in the small village of S.Giuliano just a few hours after the earthquake that had destroyed a school,while the firefighters was still trying to extract 27 children buried under the rubble.
