Dynamics of changes in the physical characteristics of a hydrothermally altered geological section according to nonisothermal physicochemical simulation (the Mutnovsky Volcano).
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| Title: | Dynamics of changes in the physical characteristics of a hydrothermally altered geological section according to nonisothermal physicochemical simulation (the Mutnovsky Volcano). |
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| Authors: | Bessonova, E. P.1, Gora, M. P.1, Shevko, A. Ya.1, Chudnenko, K. V.2, Cherepanova, V. K.1 |
| Source: | Izvestiya, Physics of the Solid Earth. Jun2011, Vol. 47 Issue 6, p519-530. 12p. 1 Diagram, 3 Charts, 4 Graphs. |
| Subject Terms: | *Computer simulation, *Hydrothermal vents, *Magnetic properties of rocks, *Hydrothermal alteration, *Volcanic ash, tuff, etc., *Thermophysical properties |
| Abstract: | The paper presents the results of numerical simulation of a subaerial volcanic hydrothermal system. The model is based on the factual data on the rock composition and the geological structure of the Mutnovsky Volcano. We develop a new approach to construct the numerical model of a volcanic hydrothermal system. According to this approach, at each step of the calculation, for each point of the spatiotemporal domain, the thermophysical properties are determined; further, these properties are used in the calculation of the equilibrium state of the system. This procedure allows us to take into account the dynamic changes in the T-P conditions in the cross section and the migration of the phase boundaries. As well, using this approach, we can pass from 'conditional' time in the description of the evolution of the magmagenic fluid system to the 'virtually dimensional time' of the development of the simulated ore-magmatic system, from the onset of melt crystallization in the intrusive chamber up to the termination of the retrograde boiling of the melt. The simulation shows that, depending on the structure of the lower part of the section, contrasting hydrothermal systems can develop in the originally homogeneous medium. The relation between the temperature, and, therefore, phase composition of the fluid and the features of the hydrothermal alteration in volcanic rocks is demonstrated. Among other questions, in the present paper we discuss the changes in the density and magnetic properties of the volcanogenic section. [ABSTRACT FROM AUTHOR] |
| Database: | Energy & Power Source |
| FullText | Links: – Type: pdflink Text: Availability: 0 |
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| Header | DbId: enr DbLabel: Energy & Power Source An: 61071988 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Dynamics of changes in the physical characteristics of a hydrothermally altered geological section according to nonisothermal physicochemical simulation (the Mutnovsky Volcano). – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Bessonova%2C+E%2E+P%2E%22">Bessonova, E. P.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Gora%2C+M%2E+P%2E%22">Gora, M. P.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Shevko%2C+A%2E+Ya%2E%22">Shevko, A. Ya.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Chudnenko%2C+K%2E+V%2E%22">Chudnenko, K. V.</searchLink><relatesTo>2</relatesTo><br /><searchLink fieldCode="AR" term="%22Cherepanova%2C+V%2E+K%2E%22">Cherepanova, V. K.</searchLink><relatesTo>1</relatesTo> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Izvestiya%2C+Physics+of+the+Solid+Earth%22">Izvestiya, Physics of the Solid Earth</searchLink>. Jun2011, Vol. 47 Issue 6, p519-530. 12p. 1 Diagram, 3 Charts, 4 Graphs. – Name: Subject Label: Subject Terms Group: Su Data: *<searchLink fieldCode="DE" term="%22Computer+simulation%22">Computer simulation</searchLink><br />*<searchLink fieldCode="DE" term="%22Hydrothermal+vents%22">Hydrothermal vents</searchLink><br />*<searchLink fieldCode="DE" term="%22Magnetic+properties+of+rocks%22">Magnetic properties of rocks</searchLink><br />*<searchLink fieldCode="DE" term="%22Hydrothermal+alteration%22">Hydrothermal alteration</searchLink><br />*<searchLink fieldCode="DE" term="%22Volcanic+ash%2C+tuff%2C+etc%2E%22">Volcanic ash, tuff, etc.</searchLink><br />*<searchLink fieldCode="DE" term="%22Thermophysical+properties%22">Thermophysical properties</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: The paper presents the results of numerical simulation of a subaerial volcanic hydrothermal system. The model is based on the factual data on the rock composition and the geological structure of the Mutnovsky Volcano. We develop a new approach to construct the numerical model of a volcanic hydrothermal system. According to this approach, at each step of the calculation, for each point of the spatiotemporal domain, the thermophysical properties are determined; further, these properties are used in the calculation of the equilibrium state of the system. This procedure allows us to take into account the dynamic changes in the T-P conditions in the cross section and the migration of the phase boundaries. As well, using this approach, we can pass from 'conditional' time in the description of the evolution of the magmagenic fluid system to the 'virtually dimensional time' of the development of the simulated ore-magmatic system, from the onset of melt crystallization in the intrusive chamber up to the termination of the retrograde boiling of the melt. The simulation shows that, depending on the structure of the lower part of the section, contrasting hydrothermal systems can develop in the originally homogeneous medium. The relation between the temperature, and, therefore, phase composition of the fluid and the features of the hydrothermal alteration in volcanic rocks is demonstrated. Among other questions, in the present paper we discuss the changes in the density and magnetic properties of the volcanogenic section. [ABSTRACT FROM AUTHOR] |
| PLink | https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=enr&AN=61071988 |
| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1134/S1069351311050016 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 12 StartPage: 519 Subjects: – SubjectFull: Computer simulation Type: general – SubjectFull: Hydrothermal vents Type: general – SubjectFull: Magnetic properties of rocks Type: general – SubjectFull: Hydrothermal alteration Type: general – SubjectFull: Volcanic ash, tuff, etc. Type: general – SubjectFull: Thermophysical properties Type: general Titles: – TitleFull: Dynamics of changes in the physical characteristics of a hydrothermally altered geological section according to nonisothermal physicochemical simulation (the Mutnovsky Volcano). Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Bessonova, E. P. – PersonEntity: Name: NameFull: Gora, M. P. – PersonEntity: Name: NameFull: Shevko, A. Ya. – PersonEntity: Name: NameFull: Chudnenko, K. V. – PersonEntity: Name: NameFull: Cherepanova, V. K. IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 06 Text: Jun2011 Type: published Y: 2011 Identifiers: – Type: issn-print Value: 10693513 Numbering: – Type: volume Value: 47 – Type: issue Value: 6 Titles: – TitleFull: Izvestiya, Physics of the Solid Earth Type: main |
| ResultId | 1 |
