Seismicity and isostasy

Artemjev, M.E.; Bune, V. I.; Dubrovsky, V.A.; Kambarov, N. S.

doi:10.1016/0031-9201(72)90009-x

Cited by 17 publications

(5 citation statements)

References 3 publications

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“…Several simple surface loads are tested using this model. The derived threedimensional solution for a surface harmonic load is virtually consistent with the two-dimensional analytic solution (Artem'jev et al, 1972).…”

Section: Discussionsupporting

confidence: 70%

See 1 more Smart Citation

Evaluation of hypotheses for the cause of the 1886 Charleston earthquake

White¹,

Long²

1989

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AKhough the listing that follows represents the majority of documents cited In NRC publications. It Is not Intended to be exhaustive.Referenced documents available for Inspection and copying for a fee from the NRC Public Document Room include NRC correspondence and internal NRC memoranda; NRC Office of Inspection and Enforcement bulletins, circulars, Information notices, inspection and investigation notices; Licensee Event Reports; vendor reports and correspondence; Commission papers; and applicant and licensee documents and correspondence.The following documents In the NUREG series are available for purchase from the GPO Sales Program: formal NRC staff and contractor reports, NRC-sponsored conference proceedings, and NRC booklets and brochures. Also available are Regulatory Guides, NRC regulations In the Code of Federal Regulations, and Nuclear Regulatory Commission Issuances. Documents available from the National Technical Information Service Include NUREG series reports and technical reports prepared by other federal agencies and reports prepared by the Atomic Energy Commission, forerunner agency to the Nuclear Regulatory Commission.Documents available from public and special technical libraries include all open literature Items, such as books, Journal and periodical articles, and transactions. Federal Register notices, federal and state legislation, and congressional reports can usually be obtained from these Hbrarles. Documents such as theses, dissertations, foreign reports and translations, and non-NRC conference proceedings are available for purchase from the organization sponsoring the publication cited.Single copies of NRC draft reports are available free, to the extent of supply, upon written request to the

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Section: Discussionsupporting

confidence: 70%

“…(4) The simple tests summarized in Table 2-1, show that the stress field calculated from isostatic anomalies alone (such as discussed by Artem'jev et al, 1972) is quite different from the stress computed from the topographic load and its under (or over) compensation indicated by the Bouguer anomaly. In the latter case, the stress is greater.…”

Section: Discussionmentioning

confidence: 99%

Evaluation of hypotheses for the cause of the 1886 Charleston earthquake

White¹,

Long²

1989

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“…There exist, however, strong isostatic anomalies in many young orogenic regions (e.g., the Eurasian Alpine geosyncline zone). Their intensity usually increases with the elevation of the relief and the magnitude of neotectonic displacements [Artemjev, 1966;Artemjev et al, 1972]. Most anomalies are of a relatively small horizontal scale, which indicates that they are associated with deviations of the crust from isostasy.…”

mentioning

confidence: 99%

Can the Earth's crust be in a state of isostasy?

Artyushkov¹

1974

J. Geophys. Res.

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It is now assumed that the earth's crust tends to reach isostatic equilibrium if there are no external forces acting on the crust. This statement is one of the main principles of geophysics, yet it is incorrect. The isostatic state is generally unstable and differs from the stable position of the crust, which actually exists in many regions. These positions coincide only where the crustal and lithospheric thicknesses are constant. They differ considerably when these thicknesses vary strongly in a horizontal direction. Thus many regional isostatic anomalies in orogenic regions are explained. The instability of isostatic equilibrium is associated with the asymmetry of the upper and lower lithospheric boundaries and with large nonhydrostatic stresses inherent in crustal thickness inhomogeneities.

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“…The second group includes local (smaller-scale) stresses due to inhomogeneities of the structure and physical state in the crust and upper mantle (in particular, disturbances of the isostatic equilibrium). Artemjev et al [1972] demonstrated theoretically that, even in an isostatically compensated lithosphere, amplitudes of local stresses due to density inhomogeneities can be of the same order as the maximum amplitude of regional stresses. Local stresses reflect a complex superposition of density inhomogeneities in the crust and upper mantle that are directly related to the dynamics of lithosphere.…”

Section: Mantle Gravity Anomaliesmentioning

confidence: 97%

Geodynamic regionalization of the recent structure of North Eurasia

Grachev¹,

Kaban²,

Николаев³

2004

Russ. J. Earth Sci.

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Correlation analysis of geological and geophysical parameters of the North Eurasia lithosphere is performed on the basis of data for the recent vertical tectonic movements of the crust reflected in the 1:5 000 000 North Eurasia map of recent tectonics [Neotectonic map..., 1996] and calculated curvature intensities of the recent movements K int , as well as such geophysical parameters as the heat flow HF, Moho depth, maximum and minimum tangential stresses S 1 −S 3 estimated from gravity data, and mantle anomalies with wavelengths shorter than 2400 km. The correlation analysis is complemented with factor analysis. Factors responsible for geodynamic regimes of North Eurasia are identified and mapped. They are used for the identification and interpretation of geodynamic classes of the lithosphere. Seismically active regions such as orogens, rifts and prerifts are examined separately; an additional parameter, the seismic activity A 10 is used for this purpose. Aseismic platforms are also studied separately using, as a parameter, the crystalline basement depth instead of the seismic activity. Results of the geodynamic regionalization of seismically active and aseismic areas in North Eurasia are summarized in a general map of geodynamic regionalization of North Eurasia. Its analysis provided several constraints on the development and controlling factors of the majority of regions. Implications of the inferred results for the determination of tectonic stress fields are discussed. grachev et al.: geodynamic regionalization of the recent structure

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Seismicity and isostasy

Cited by 17 publications

References 3 publications

Evaluation of hypotheses for the cause of the 1886 Charleston earthquake

Evaluation of hypotheses for the cause of the 1886 Charleston earthquake

Can the Earth's crust be in a state of isostasy?

Geodynamic regionalization of the recent structure of North Eurasia

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