| 1. |
- Hallengren, Anders, 1950-
(författare)
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Jordbävningen i Tangshan
- 1976
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Ingår i: Värld och vetande. - 0346-4873. ; 25:11, s. 321-329
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Tidskriftsartikel (populärvet., debatt m.m.)abstract
- Bildreportage om naturkatastrofen, räddningsarbetet – dess politiska betydelse och efterspel – med idel kinesisk massmedial betoning på djärvheten och hjältemodet hos folket, underdrift om ödeläggelsen, och i övermått om det snabba återuppbyggnadsarbetet och framtidsoptimism. — I denna artikel förutskickas även den nyligen bortgångne Mao Zedongs definitiva fall som ledstjärna i kinesisk politik, vilket explicit inträffade året efter att Maos mausoleum öppnats för allmänheten på Torget vid Himmelska fridens port (november 1977) – då Deng Xiaoping under sitt första år som kommunistpartiets högste ledare 1978 initierade socialistiska marknadsreformer, och därmed påbörjade den radikala förändringen av Maos ideologi i Folkrepubliken Kina (PRC).
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| 2. |
- Elming, Sten-Åke, et al.
(författare)
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The Blue Road Geotraverse: A magnetic ground survey and the interpretation of magnetic anomalies
- 1976
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Ingår i: Geologiska Föreningen i Stockholm Förhandlingar. - : Informa UK Limited. - 0016-786X. ; 98, s. 264-270
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Tidskriftsartikel (refereegranskat)abstract
- Ground measurements of the magnetic field were carried out along a 20-km-wide zone along the Blue Road Geotraverse. In addition, a profile of high precision was measured. A large positive anomaly within the mountain area cannot be explained by anomalous magnetization of surface rocks. Optimization of theoretical models shows that it may have its origin at a depth of 30 km, indicating a rise of the Curie isothermal surface from the mountain area to the Baltic shield. The rise of the isotherm may be connected with the land uplift. Interpretation of smaller anomalies reveals the thickness of sedimentary layers
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| 3. |
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| 4. |
- Parasnis, Dattatray
(författare)
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Mining geophysics
- 1973. - 2 rev.
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Bok (övrigt vetenskapligt/konstnärligt)
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| 5. |
- Parasnis, Dattatray S.
(författare)
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Effect of a uniform overburden on the passage of a thermal wave and the temperatures in the undelying rock
- 1976
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Ingår i: Geophysical Journal International. - 0956-540X .- 1365-246X. ; 46:1, s. 189-192
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Tidskriftsartikel (refereegranskat)abstract
- The system is a uniform overburden of thickness h, thermal The system considered k1, and diffusivity α1 overlying a semi‐infinite substratum (conductivity K2, diffusivity α2). It is shown that if the temperature of the surface varies with time t as T0 sin ωt, the temperatures v1, v2 in the overburden and the substratum respectively are given by: (Formula Presented.) The apparently simple boundary value problem has thus a surprisingly involved solution. The solution is of considerable importance in shallow geothermal measurements in, for example, moraine‐covered areas such as the Swedish Precambrian or in areas of uniform in situ weathering.
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| 6. |
- Parasnis, Dattatray
(författare)
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Temperature phenomena and heat flow estimates in two precambrian ore-bearing areas in north Sweden
- 1975
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Ingår i: Geophysical Journal International. - 0956-540X .- 1365-246X. ; 43:2, s. 531-554
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Tidskriftsartikel (refereegranskat)abstract
- Temperature measurements in 17 drillholes reaching vertical depths between 365 and 780 m below ground surface in the Skellefte area (lat. 65° 52deg;N, long. 20° 20° E Gr) and Aitik area (lat. 67° 5deg;N, long. 21° E Gr) in the Swedish precambrian are reported. The absolute accuracy of the measurements was about 0.03°C and the relative one about 0.005°C. A large number of thermal diffusivity measurements were made on rock samples from the two areas in order to estimate the correction to the observed steady geothermal gradients due to climatic amelioration at the end of the Pleistocene. The corrected gradients are between 0.01266°C m-1 and 0.01485°C m-1 (Skellefte) and between 0.01684°C m-1 and 0.02268°C m-1 (Aitik). The diffusivity measurements were supplemented by thermal conductivity determinations on 265 drillcore samples from the different rock formations in the holes.The undisturbed heat flow in the Skellefte area is found to be 48.7 mW m-2 and that in the Aitik area to be 49.8 mW m-2. Distortion of the heat flow due to a sulphide ore in the Skellefte area is demonstrated. The heat flow through the Långsele ore in this area is of the order of 70 mW m-2.
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| 7. |
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| 8. |
- Siksna, R.
(författare)
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A symmetrical aspiration capacitor for the simultaneous recording of atmospheric ions of both polarities
- 1972
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Ingår i: Pure and Applied Geophysics. - 0033-4553 .- 1420-9136. ; 100:8, s. 146-153
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Tidskriftsartikel (refereegranskat)abstract
- With the ordinary aspiration-capacitor, ions of only one polarity can be detected, and for the simultaneous measurement of ions of both polarities, two such counters are necessary. For the investigation of the transient phenomena in an aspiration-capacitor, a symmetrical plate capacitor has been constructed. When each of the plates is connected to a separate electrometer, ions of one polarity can be recorded by one of the electrometers connected to one of the plates and ions of the other polarity by the electrometer connected to the other plate. The advantage of the symmetrical aspiration-capacitor described is that ions of both polarities contained in the same air volume can be simultaneously recorded.
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| 9. |
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